Con crete S ealing T E C H N O L O G LTD
Index
*Product Selector Guide 2/3
Specification Compliance 5
Test Certificates 6/7
Project References 8
SECTION A
PVC WATERSTOPS
Advisory Design Service 18
Extaseal External 12
Fabrication and Fixing Details 17
Internal Waterstop 13
Jointing Detail 19
Notes for use 20
Pilecap Waterstop 14
Profile Summary 11
Typical Details 15
Typical Installations 22
HYDROPHILIC SELF SWELLING WATERSTOPS
Dual Seal Waterstop 24
Swelltite 30
Superstop 29
Uraswell Hydrophilic Sealant 31
Dualtite Hydrophilic Expansion Waterstop 32
SECTION B
WATERPROOFING MEMBRANES
Dual Seal Membrane 38
Dual Seal Installation 40
Bitusheet XL 44
Bitusheet HPS Waterproofing System 46 Bitusheet Gas Barrier Membrane 48
Liquid Asphaltic Compound 50
Sealing Systems Guide 37
Cold Applied Flexible Bitumen Emulsion 52 Bitusheet Membrane Installation Guide 56
PROTECTION BOARDS AND ACCESSORIES
Bitusheet HD Protection Board 58
Bituflex Fillet 54
Bituflex Protection Board 68
Bitcoat Protection Board 60
Bituminous Protection Board 59
Bitusheet Double Sided Tape 53
Bitusheet Mastic 53
Bitusheet Primer 54
Bitusheet Reinforcing Tape 53
Dual Seal Mastic 42
Dual Seal Granules 42
SECTION C
DRAINAGE SYSTEMS
Walldrain 64
Slabdrain 61/62
SECTION D
EXPANSION JOINT FILLERBOARDS
Expansion Fillerboards for Concrete Slabs 67
Bitubond Cork 72
Bituflex 68
Expansionthene 69
Expansionthene Heavy Duty PW 71
Resin Bonded Cork 73
SECTION E
DPCs, CAVITY TRAYS
Standard & High Performance Grade DPCs 75
High Build 76
Plyload 78
Cavity Tray Units 80
Cavity Tray Joint Support System 81
Plyload Insulated DPC 82
SECTION F
JOINT SEALANTS
4254 Two Part Polysulphide 84
Non-Biodegradeable Two Part Polysulphide 85
Coldseal 200-90 86
Coldseal 200D 87
Joint Design and Application 88
Primer P 89
Uraflex One Part Polyurethane 90
Uraflex 40 Pavement Sealant 91
Hot Poured Bitumen N1/N2 92
Polyethylene Foam Sealant Bond Breaker 93
Chamfer Former 94
Slip Membrane 95
SECTION G
JOINTING MATERIALS FOR CONCRETE PAVED AREAS
Base Y Crack Inducer 100
Clearcrack Heavy Duty Crack Inducer 99
Preformed Joint Seal 102
Clearcrack Installation 104
Side Slab Strip 103
Expansion Joint Seal 102
Isolation Joint Seal 102
Dowel Bar Debonding Sleeves 100
Con crete S ealing T E C H N O L O LTD
Contents
*Section A
PVC Waterstops
Section B
Bentonite Waterproofing Membranes
Bituminous Waterproofing Membranes
Methane Resistant Membranes
Liquid Membranes
Protection Boards
Accessories
Section C
Cavity Drainage Systems
Section D
Expansion Joint Fillerboards
Section E
DPCs Cavity Trays
Cavity Tray Units
Joint Support
Insulated DPC
Section F
Sealants
Sealant Bond Breakers
Sealant Void Formers
Chamfer Formers
Slip Membrane
Section G
Crack Inducers
Dowel Bar Debonding Sleeves
Preformed Joint Seals
Concrete S ealing T E C H N O L O G LTD
Product Selector Guide
CONCRETE SLABS/ COMMERCIAL BUILDINGS
CRACK INDUCERS
BASEMENTS and BELOW GROUND STRUCTURES WATERSTOPS SELF SWELLING DUAL SEAL SWELLTITE P.V.C. EXTERNAL CONSTRUCTION PILECAP INTERNAL FLAT DUMBELL WATERPROOFING MEMBRANES BENTONITE/HDPE SELF-HEALING DUAL SEAL BITUMINOUS SELF ADHESIVE BITUSHEET XL BITUSHEET METHANE RESISTANT MEMBRANE PROTECTION BOARD FIN DRAINS WALLDRAIN SLABDRAIN CLEARCRACK TWO PART BOTTOM ‘Y’ EXPANSIONTHENE BITUBOND CORK BITUFLEX BITUSHEET 1000g
BUTUSHEET METHANE RESISTANT DUAL SEAL HIGHBUILD DPC SEALERS LIQUID PRE-FORMED RUBBER JOINTING ACCESSORIES DOWEL BAR DE-BONDING SLEEVE LONGITUDINAL SEAL SEALANT VOID FORMER BACKER ROD COLDSEAL 200-90 HOT POURED RUBBER BITUMEN FLEXOCRETE CLEARCRACK SEAL 20mm EXPANSION SEAL 25mm EXPANSION SEAL ISOLATION JOINT SEAL EXPANSION JOINT
FILLERS WATERPROOFING & GAS
BARRIER MEMBRANES DPC’s Concrete S ealing T E C H N O L O G LTD
Concrete S ealing T E C H N O L O G LTD
Product Selector Guide
POTABLE WATER RETAINING/ SEWAGE TREATMENT STRUCTURES
WATERSTOPS
WATERPROOFING MEMBRANES EXPANSION FILLERS
BENTONITE/HDPE SELF-HEALING
DUAL SEAL
SEALANTS
ONE PART POLYURETHANE ‘4254’ TWO PART POLYSULPHIDE POLYSULPHIDE (NON BIODEGRADEABLE) WALLDRAIN SLABDRAIN STRIPDRAIN RE-USABLE SEALANT VOID FORMER CHAMFER FORMER DOWEL BAR DE-BONDING
SLEEVE SLIP MEMBRANE BOTTOM ‘Y’ CRACK
INDUCER FIN DRAINS ACCESSORIES BITUMINOUS SELF ADHESIVE BITUSHEET XL PW BITUSHEET 500g BITUSHEET 1000g BITUSHEET 1200g BITUSHEET METHANE RESISTANT MEMBRANE PROTECTION BOARD GEOMEMBRANES SELF SWELLING DUAL SEAL SWELLTITE P.V.C. EXTERNAL CONSTRUCTION EXPANSION KICKER FLAT DUMBELL CENTRE BULB FLAT DUMBELL HD CENTRE BULB HD INTERNAL EXPANSIONTHENE HD
RESIN BONDED CORK BITUBOND CORK
BITUFLEX
WATERSTOP JUNCTION PIECES PRE-FABRICATED UNITS Concrete S ealin T E C H N O L O G LTD
Concrete S ealing T E C H N O L O G Y SCP LTD
Construction Products
Pilecap Waterstop Junction Dual Seal Hydrophillic Swelltite Hydrophillic Bitusheet XL Waterproofing Waterstop Pieces Waterstop Waterstop Membrane
Bitusheet Waterproofing Bitusheet Reinforcing Bitusheet Bituminous Bitudex Membrane Bitusheet Uniflex Gas Membranes Tape Membrane Protection Board Protection Board Barrier Membrane
Walldrain Dualseal Self Swelling Bitubond Cork Fillerboard Resin Bonded Cork Bituflex Fillerboard Waterproofing Fillerboard
Membrane
Expansionthene Expansionthene P. W. Sealant Void Chamfer & Column ‘4254’ 2 Part Polysulphide Fillerboard Fillerboard Formers Former Non Biodegradable
Joint Sealant
Hot Poured Rubber Bitumen Coldseal 200-90 Clearcrack Crack Two-Part Bottom Y Joint Sealant N1/N2 Joint Sealant Inducer Crack Inducer Crack Inducer
Dowel Bar Debonding Clearcrack Rubber Uraflex PW one-part Expansion/Contraction Slip Membrane Sleeves Compression Seal Polyurethane Sealant Seal
Concrete S ealin T E C H N O L O G Y SCP LTD FLAT L FLAT X
Extaseal External Waterstop Extaseal External Waterstop Flat Dumbel Waterstop Centre Bulb Waterstop Kicker Waterstop Construction Type Expansion Type
Concrete S ealing T E C H N O L O G LTD
Specification Compliance
Product British Standard ASTM Other
PVC Waterstops 2571 D 792
Internal 2782 D 418 US Corp of Engineers Spec.
D 624 CRD - C572 - 74
D 746 United Kingdom Water Fittings
Byelaws Scheme Listed
PVC Waterstop 2571 D 792 National Water Council
Extaseal 2782 D 418 Document No.4-31-02
D 624 D 746
Dual Seal Membrane D146 Pliability
D412 Tensile
Dual Seal Waterstop D638 Elongation
Bituflex - Expansion D 1751-73 Compression DOE General Spec No 201
Joint Fillerboard and Recovery Test Clause 606
D 545-77 Extrusion Test DOT Spec. for highway works, Part 3
Weathering Test Clause 1015 - 1986
US Fed. Spec. HH-FO341a Type 1 Class B
Resin Bonded Cork D1752-60T Type II US Fed. Spec. HH-F0341a
Expansion Joint Fillerboard Type II Class B
Self Expanding Cork D 1752-67 DOE General Spec. No. 201
Expansion Joint Fillerboard D 545-77 Type III Clause 606
Expansionthene PW. US Std. Fmv SS302
Expansion Joint Fillerboard United Kingdom Water Fittings
Byelaws Scheme Listed. D.O.T. Spec. for Highway Works Part 3. Clause 1015 - 1986
'4254' Two Part Polysulphide 4254 C920, Grade P, Class 25 US Fed Spec. No. TT-S-00227
Joint Sealant C920, Grade NS, Class 25 A, B, and E
ASA 116.1 - 1960
United Kingdom Warter Fittings Byelaws Scheme Listed*
'Non-Biodegradable' 4254 C920, Grade P, Class 25 US Fed. Spec. No. TT-S-00227
Two Part Polysulphide C920, Grade NS, Class 25 A, B, and E
Joint Sealant ASA 116.1 - 1960
United Kingdom Water Fittings Byelaws Scheme Listed*
Uraflex PW Sealant 4254 United Kingdom Water Fittings
Byelaws Scheme Listed*
Coldseal 200-90 5212 US Fed. Spec. SS-S-195b,
and SS-S-200D Neoprene Rubber
D 2628 Compression Seals
Bitusheet 1000 gauge 3177 Water vapour D 146 Pliability British Standard BS 8102
Self Bonding Permeability D 412 Tensile
Rubber Bitumen/polythene 2782 1976 Method 320A D 412 Elongation Agrement Certified
Waterproofing Membrane Tensile strength E 96 Water Vapour No. 94/3048
2782 1976 Method 320A Permeance
Elongation D 1228 Water Absorption
Bitusheet 1200 gauge 3177 Water Vapour D 146 Pliability British Standard BS 8102
Hot Climate Grade Permeability D 412 Tensile
Self Bonding 2782 1976 Method 320A D 412 Elongation
Rubber Bitumen/PVC Tensile Strength E 96 Water Vapour
Waterproofing Membrane 2782 1976 Method 320A Permeance
Elongation D1228 Water Absorption
Bitusheet XL PW & HD 3177 Water Vapour D146 Pliability United Kingdom Water Fittings
Self Bonding permeability D412 Tensile Byelaws Scheme Listed
Waterproofing Membrane 2782 1976 Method 320A D 412 Elongation Agrement Certified
Tensile strength E 96 Water Vapour No. 94/3048
2782 1976 Method 320A Permeance British Standard BS 8102
Elongation D 1228 Water Absorption
Hot Poured Rubber Bitumen 2499 1973 D 1190 US Fed. Spec. S-SS 164
Sealants N1 & N2 Types
Concrete S ealin T E C H N O L O G LTD
Agrement Certified No. 97/3328 United Kingdom
Water Fittings BBA Byelaws Scheme Listed
High Build DPC Plyload DPC
5628 Part 3 Code of Practice for use of Masonry 8215 Design and installation
of Damp Proof Courses 8000 Workmanship on
Building sites
Agrement Certificate No. 00/3689 Agrement Certificate No. 99/3623
Concrete S ealing T E C H N O L O G Y SCP LTD
Test Certificates
Concrete S ealin T E C H N O L O G Y SCP LTDTest Certificates
Concrete S ealing T E C H N O L O LTDCon crete S ealing T E C H N O L O G LTD
Project References
*The following Major Projects have been supplied with SCP Concrete Sealing and
Waterproofing Materials during the past 4 years;
Millennium Stadium
-
Cardiff
-
Laing
Celtic Manor Hotel
-
Newport
-
Kvaerner
Quay West Shopping Complex
-
Southampton -
Sir Robert McAlpine
BP Grangemouth
-
Scotland
-
Balfour Beatty
East Midlands Airport
-
Derby
-
Fitzpatrick
Weston Super Mare STW
-
Somerset
-
Dean & Dyball
Windsor & Eaton Flood Scheme
-
Slough
-
Edmund Nuttall
The Oracle Centre
-
Reading
- Lesterose
RNAS Yeovilton
-
Ilchester
-
Sunley Turriff
M1-A1 Link
-
Leeds
- Kvaerner/Balfour Beatty
Bluewater Park Shopping Complex
-
Greenhythe -
John Martin
Templeton Reservoir
-
Wales
-
Dean & Dyball
Daily Express Building
-
London
-
Taylor Woodrow
Cambridge University Library
-
Cambridge -
R.G.Carter
Swansea Water Treatment Works
Swansea -
Laing
Scottish Exhibition Centre
-
Glasgow -
Bovis
Southend STW
-
Southend -
Biwater
John Radcliffe Hospital
-
Oxford
-
Leadbitter
Thanet Way Bypass
-
Kent
-
Hocktief Kier JV
Harrods
-
London -
John Doyle
British Airways, Heathrow
-
London -
Edmund Nuttall
Pontypool Bypass
-
Wales
-
Taylor Woodrow
British Steel
-
Swansea -
Tilbury Douglas
North Circular Road
-
London
-
Edmund Nuttall
Tesco Superstore
-
Manchester -
Taylor Woodrow
Science Museum
-
London
-
Kier
Majeski Stadium
-
Reading -
Birse
The Royal Victoria Hospital
-
Liverpool -
John Turner
Portman Building Society HQ
-
Bournemouth -
Kvaerner
Ikea
-
Bristol
-
Carey
Hull Waste Water Treatment Works
-
Hull
-
Kvaerner
Budds Farm
-
Portsmouth
-
Amec
Safeway
-
Bath
-
Churngold
Somerfield Superstore
-
Hungerford
-
Amey
Bridport STW
-
Bridport
-
Birse
Leisure Development
-
Manchester
-
Allenbuild
Whitehall Phase 2
-
Leeds
-
Allenbuild
A W
A
TERSTOPS
SECTION A
SCP range of
Waterstops
PVC Extaseal External
PVC Eyeletted Internal
Hydrophilic Waterstops
Dual Seal Bentonite
Swelltite Rubber
Superstop Box Out
Concrete S ealing T E C H N O L O G LTD
SCP Construction Products for Concrete Structures
*200mm or 250mm Extaseal Expansion Type
SCP ‘4254’ Two Part Polysulphide or One Part Polyurethane Uraflex
Sealant
Expansion Fillerboard
250mm Extaseal Expansion Type Waterstop
Typical Joint Details Service Reservoir
Eyeletted Centrebulb
Internal Waterstop Expansion joint detail wall
SCP Sealant Void Former
SCP Resin Bonded Cork
or Expansionthene
PW Grade
Expansion joint detail wall
45o Chamfer Former fixed to shutter
Two layers of SCP Slip membrane
Extaseal Waterstop Kicker Joint Detail Wall to Floor slab
200mm or 250mm Extaseal heavy duty section for construction and kicker
application Construction Joint detail Floor Slab SCP 4254 Two Part
Polysulphide Sealant
45o Column chamfer former
Half Void Former
Eyeletted Flat Dumbell Waterstop Construction joint detail wall
Half Void Former (1st pour) Full Void Former
(2nd pour)
Concrete S ealing T E C H N O L O LTD
SCP PVC Waterstop Profile Summary
*200mm Extaseal Construction Waterstop
250mm Extaseal Construction Waterstop 200mm Extaseal Expansion Waterstop
250mm Extaseal Expansion Waterstop
320mm Extaseal Kicker Waterstop
320mm Extaseal Expansion Waterstop
Pile Cap Construction Waterstop
Pile Cap Expansion Waterstop
200mm Flat Dumbell Eyeletted Waterstop 150mm Flat Dumbell Eyeletted Waterstop
150mm Centrebulb Eyeletted Waterstop
260mm Flat Dumbell Eyeletted Waterstop
250 x 10mm Heavy Duty Centrebulb Waterstop
305 x 6mm Heavy Duty Centrebulb Waterstop 200mm Centrebulb Eyeletted Waterstop
260mm Centrebulb Eyeletted Waterstop
150 x 10mm Heavy Duty Centrebulb Waterstop 150 x 10mm Heavy Duty Flat Dumbell Waterstop
250 x 10mm Heavy Duty Flat Dumbell Waterstop SCP Waterstops are manufactured from high
quality PVC and are specifically developed to seal joints in concrete structures.
Elongation 300% (nominal)
Tensile Strength 13.8/mm2(2000 p.s.i)
B.S Softness 45 @ 20oC Relative Density 1.3
Complies to BS 2571 & BS 2782
U.K Water Fittings Bye Laws Scheme Listed.
Meets the requirements of the National Water Councils Document No. 4-31-02
Concrete S ealing T E C H N O L O G LTD
External Waterstops
*SCP Extaseal External P.V.C. Waterstop
Description:
Extaseal External P.V.C. Waterstop is a high performance, heavy duty profile waterstop specifically developed to seal joints in concrete structures at the outside surface thus protecting the reinforcing steel against corrosion attack, in addition to providing a totally watertight seal.
Typical Profiles:
Type Width (mm) Construction Joint 200 250 -Expansion Joint 200 250 320 Kicker Joint - - 320 Roll Size 15m 10m 10m Elongation: 300%Tensile Strength: 13.8M/mm2(2000 p.s.i.)
B.S. Softness 45 @ 200C
Relative Density 1.3
U.K. Water Fittings Byelaws Scheme Listed. Meets the requirements of the National Water Council Document No. 4-31-02
Conforms to the DWI
Water Quality Regulation 25 (1) c 1989
Sizes:
Technical Data:
Expansion Joint
Construction Joint
Typical Applications:
Extaseal Construction Waterstop Extaseal Expansion Waterstop
Uses:
Extaseal External Waterstops have been independently tested to provide a totally effective water barrier up to 27m head,expansion and kicker joints in concrete water retaining and excluding structures.
Concrete S ealing T E C H N O L O LTD*
Internal Waterstops
SCP Flat Dumbell and Centrebulb Internal P.V.C. Waterstop
Description:
Flat Dumbell and Centrebulb Internal Waterstops have been specifically developed, with their unique rib and end bulb profiles to provide a totally effective water barrier when cast centrally within
Typical Profiles:
Typical Applications:
Technical Data:
Sizes:
Flat Dumbell Construction Waterstop Centrebulb Expansion Waterstop
Uses:
Flat Dumbell and Centrebulb Internal Waterstops have been independently tested to withstand ingress of water, up to 27m head in construction and expansion joints in water retaining and excluding structures.
Width (mm) x 5mm web
Width (mm) x 10mm web
Type
Application
Eyeletted
Heavy Duty
Flat DumbellConstruction Joint
150
200, 260
150, 250
Centrebulb Expansion Joint
150
200, 260
150, 250, 305
Roll Size
15m
15m
10m
Elongation:
300% (nominal)
B.S. Softness
45 @ 20
oC
Concrete S ealing T E C H N O L O G LTD*
Pilecap Waterstop
Type
Width (mm)
Roll
Size
Construction Joint 125mm x 125mm 10m
Expansion Joint 125mm x 125mm 10m
Elongation: 300% (nominal)
Tensile Strength: 13.8N/mm2(2000 p.s.i.)
B.S. Softness 45 @ 20oC
Relative Density: 1.3
U.K. Water Fittings Byelaws Scheme Listed. Meets the requirements of the National Water Council
Document No. 4-31-02
Conforms to the DWI Water Quality Regulation
SCP Pilecap Waterstop
Description:
Pilecap Waterstop has been specifically developed to provide a totally effective watertight
seal between the pilecap and floor slab in concrete structures.
Uses:
Pilecap Waterstop is used as an integral part of a waterstop network to form totally effective
watertight joints between pilecaps, ground beams, floor slabs and walls in water retaining
and excluding structures.
Pilecap Waterstop Construction Joint Type Pilecap Expansion Joint Type
Construction Joint - Pilecap to floor slab Expansion Joint - Wall base to floor slab
Typical Profiles:
Concrete S ealing T E C H N O L O LTD
Typical Details
*Typical wall base construction joint Typical wall base expansion joint
Waterstop Junction Pieces
Concrete S ealing T E C H N O L O G LTDVERTICAL T FLAT L FLAT T FLAT X VERTICAL L
In Flat Dumbell In Flat Dumbell In Flat Dumbell In Flat Dumbell In Extaseal Expansion
FLAT T FLAT X FLAT L VERTICAL L VERTICAL T
In Extaseal Expansion In Extaseal Expansion In Extaseal Expansion In Centre Bulb In Centre Bulb
FLAT L FLAT T FLAT X REVERSE VERTICAL L REVERSE VERTICAL L
In Centre Bulb In Centre Bulb In Centre Bulb In Extaseal Construction In Extaseal Expansion
MIXED VERTICAL L MIXED VERTICAL L MIXED VERTICAL T MIXED VERTICAL T MIXED FLAT X
In Extaseal Construction/ In Extaseal Expansion/ In Extaseal Construction/ In Extaseal Expansion/ In Extaseal Construction/ Flat Dumbell Centre Bulb Flat Dumbell Centre Bulb Extaseal Expansion
SYMMETRIC CORNER ANGLE CORNER MIXED FLAT T MIXED FLAT X VERTICAL L
In Pilecap In Pilecap In Pilecap/Extaseal In Pilecap/Extaseal In Pilecap/Extaseal Construction Construction Construction (Handed)
FLAT L ELECTRIC JOINTING KNIFE JOINTING JIG
In Pilecap/Extaseal Construction (Handed)
VERTICAL L FLAT T FLAT X FLAT L VERTICAL L
In Extaseal Construction In Extaseal Construction In Extaseal Construction In Extaseal Construction In Flat Dumbell
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
Concrete S ealing T E C H N O L O LTD
Circular Fabrications
Prefabricated Waterstop for Circular Tanks
When Extaseal waterstop is required to be prefabricated to form a circle the details below can be used as a design guide to establish the number of chords required compared to the deviation obtained from a true circle. Where the circular waterstop is placed on blinding sloping towards the centre the number of chords may be reduced. Where the radial joints are required the number of chords used should be divisable by the number of radial joints.
Circle Radius No. of Chords Deviation from a True Circle. 3.0m 36 ±12mm 3.0m 30 ±17mm 3.5m 36 ±14mm 3.5m 30 ±20mm 4.0m 36 ±16mm 4.0m 30 ±22mm 5.0m 36 ±19mm 5.0m 30 ±28mm 6.0m 30 ±33mm 6.0m 24 ±52mm 7.5m 30 ±41mm 7.5m 24 ±65mm 10.0m 30 ±55mm 10.0m 24 ±87mm
12.5m Flat Waterstop laid to circle centreline.
Extaseal external waterstop incorporates an integral nailing flange along the outer edge to accept special fixings when using timber shutters. The double headed fixings are designed such that the Extaseal waterstop is located securely in the concrete and is not displaced when removing the shutter.
Internal waterstop to be securely fixed to steel re-inforcement prior to S.R Range
Fixing Clip
Concrete S ealing T E C H N O L O G LTD
SCP Advisory Design Service
SCP offer an advisory/design service to specifiers on the use and application for all our Waterproofing Systems.
Using the latest AutoCAD Software we can prepare three dimensional drawings for general arrangement and installation. Upon confirmation of details these drawings can then be ‘unfolded’ into template form for fabrication, thereby ensuring accuracy from design through to manufacture in our inspection controlled workshop environment.
Our national team of Technical Sales Engineers are available to liaise with site personnel to discuss and advise
upon your specific requirements.
For further information please telephone 01582 842802
Typical Service
Reservoir
Waterstop Layout
Typical Circular Tank
Waterstop Layout
Concrete S ealing T E C H N O L O LTD
PVC Waterstop Jointing Detail
1 Using a sharp knife cut both ends to be welded straight and square (use jig as guide)
2 Locate waterstop in jig, with approx. 25mm protruding. square jig with clamp.
3 Insert hot blade
4 Push waterstop ends against blade
5 Maintain contact until plastic melts into bead of about 5mm diameter (approx. 1 minute)
6 Release jig and remove knife
7 Push molten ends of waterstop together
8 Allow to cool (approx. 3 minutes)
9 Release jig and remove waterstop.
10 Inspect welded joint for continuity of weld and correct alignment of profiles. If the weld is unacceptable
repeat operations 1-9.
Useful Tip - Cold Weather Application
■
A small piece of waterstop can be used to test temperature of blade.■
If charring occurs, cut waterstop back and reweld.Health & Safety Clause
Welding of Flexible P.V.C. can result in the release of Hydrochloric Acid fumes. In confined areas use a respirator or use forced ventilation. Do not inhale the fumes. On open sites these precautions are not usually neccesary but care should be taken not to inhale any fumes. The electric welding knife should be properly earthed before use.
Concrete S ealing T E C H N O L O G LTD
Waterstop - Notes for use
A. Floor joints
Waterstops in floor joints are usually of the external type where the floor slab is directly supported by the ground and blinding concrete, which give support to the external waterstop enabling it to resist the hydrostatic pressure from above
If the use of internal waterstops is unavoidable, it is essential that the concrete underneath the waterstop is fully compacted.
B. Wall joints
Internally placed waterstops are generally used in wall joints of water retaining structures and
Externally placed waterstop in water excluding structures.
C. Roof joints
External waterstops are usually used rather than internally placed waterstops to permit easier placing and compaction of concrete.
D. Fixing of waterstops
Internal waterstop - wall installations
Internal waterstops in wall installation may lie in either the horizontal or vertical planes within the wall. The waterstop should be supported in split-end formwork accurately wrought to match the profile of the waterstop. The shutter should hold the waterstop so that half its width is cast into the concrete at the designed position and within specified tolerances. Great care should be taken to ensure that the waterstop does not fold under the weight of placed concrete. To eliminate foldover particularly in kicker installations, the waterstop should be wired to reinforcing steel using tying wire through the tying points. The wire ties should not puncture the waterstop.
Internal waterstop - floor/roof
installations
Internal waterstops are not recommended for use in floor or roof installations. However, if their use is unavoidable, the following should be observed. The waterstop should be supported in formwork as described above but should not be wired, so that it may be lifted for proper concrete placement and compaction. The waterstop should not be allowed to fold over under the weight of the concrete.
External waterstop - floor/roof
installations
The waterstop should be laid on the blinding concrete, or shuttering, whichever is appropriate, along the intended line of the joint before the bottom steel reinforcement is placed. This sets the pattern of the bays prior to concreting and allows the site welds and the overall quality of the installation to be
checked. The stop end boards should then be firmly bedded on the waterstop.
In water excluding structures when Extaseal is used in
the vertical and horizontal wall joints then the waterstop should be held in place using Schlegel waterstop fixing nails through the fixing flange.
E. Jointing
Joints between waterstops and junctions should be welded as shown on page 17 so that a continous watertight network is formed.
F. Concrete Placement and Compaction
General
A waterstop is only as effective as the concrete into which it is cast. Concrete does not bond to PVC and the ‘hold’ is provided by well-compacted concrete all around the waterstop. Poor compaction or placement of the concrete may lead to honeycombing with resultant water percolation around the waterstop. The following points should be observed prior to concrete placement.
■
Stop end shutters should be carefully blown out to remove any debris.■
Externally placed waterstops should be thoroughly cleaned out between the sealing ribs.■
Shutters should be checked for firmness against the waterstop to avoid grout seepage.■
Waterstop ties should be checked to see that they are firmly fixed.■
A final check should be made that all waterstops are correctly placed and that all junctions are correctly installed for adjacent pours.Internal waterstop - walls
Vertical Installation
The waterstop should be supported in split-end formwork accurately wrought to match the profile of the waterstop. The shutter should hold the waterstop so that half its width is cast into the concrete at the designed position and within specified tolerances. Great care should be taken to ensure that the waterstop does not fold under the weight of placed concrete. To eliminate foldover, the waterstop should be wired to reinforcing steel using tying wire through the tying points. The wire ties should not puncture the waterstop or prevent the vibrator being placed tight to the waterstop or the stop end shutter with resultant poorly compacted concrete in that zone.
Horizontal installation
As with the vertical installation, folding of the waterstop should be avoided. With heavy concrete pours, the flow should be directed towards the shutter. Unless properly secured, the waterstop may fold over creating a cavity under the waterstop. The concrete should be carefully placed around the waterstop. The concrete should be gradually poured to cover the whole waterstop, then thoroughly vibrated ensuring that the vibrator does not foul the tying wires preventing it reaching the bottom of the shutter.
Internal waterstop - floor/roof
The edge of the waterstop should be lifted and the concrete beneath the waterstop placed firmly against the stop end shutter. This should then be vibrated to give good compaction with no honeycombing. After this initial stage, the waterstop should be lowered and further concrete placed around the waterstop and vibrated. Care should be taken not to push the waterstop down when vibrating. Attention should be given to reverse any natural curling tendency of the waterstop.
External waterstop - floor/roof
The concrete should be poured against the stop end shutter and well vibrated to ensure compaction above the waterstop.
F. Avoidance of damage to the waterstop
Storage
Waterstops may be stored outside without protection in the UK in an area where it will not be liable to damage, by site traffic, plant or other site materials. The waterstop should be well supported so that it is not distorted or takes a permanent set during
storage. The manufacturer's recommendations for the method of support and stacking height should be followed.
Installation
When fixing to formwork the contractor should not puncture, cut or tear the waterstop to suit
reinforcement.
Waterstops are particularly vulnerable to damage when one half is bedded in concrete and the other half is exposed. Care should be taken to avoid damage by plant, site traffic etc.
Specification Compliance
SCP P.V.C. waterstops are manufactured from high quality polyvinylchloride resins and plasticisers. Tensile Strength: 13.8 N/mm2(2000 p.s.i.).
Elongation at break: 300% (nominal) B.S. Softness (B.S.2571/1955). 45 at 20˚C. Relative density: 1.30.
SCP P.V.C. waterstops comply with the requirements of B.S. 2571 and B.S. 2782.
Schlegel P.V.C. waterstops conform to the
recommendations of the American Concrete Institute when tested to the relevant ASTM specifications (D-792, D-412, D-624 and D-746).
The material specification meets the requirements of Section 2.83 of the Civil Engineering Specification of the Water Industry Issued by the National Water Council.
SCP P.V.C. waterstops comply with U.S. Corps of Engineers Specification CRD-C 572-74.
SCP P.V.C. waterstops are accepted for use by National Water Council (Document No. 4-31-02/June 1985).
U.K. Water Fittings Byelaws Scheme Listed.
Conforms to the DWI Water Quality Regulation 25 (1) c 1989
Concrete S ealing T E C H N O L O LTD
Waterstop - Notes for use continued
Waterstops – Typical Installations
Concrete S ealing T E C H N O L O G LTDConcrete S ealing T E C H N O L O LTD
Hydrophillic
Self Swelling
Waterstops
●
Dual Seal Waterstop
Bentonite - H.D.P.E.
●
Superstop Waterstop
Bentonite
●
Swelltite Waterstop
Hydrophillic Rubber
●
Dualtite
Expansion Joint
Waterstop
●
Uraswell
Dual Seal Waterstop
Concrete S ealing T E C H N O L O G LTDSCP Dual Seal Bentonite
Description:
Dual Seal Waterstop is a Bentonite based waterstop which reacts in contact with water by swelling to form a watertight seal in concrete structures.
Dual Seal Waterstop has been independently tested up to 30 metre head of water, it has full WRC approval for use with potable water.
Uses:
Dual Seal Waterstop has been specifically designed to seal construction joints against the ingress or outgress of liquids in water retaining or excluding structures.
Dual Seal Waterstop is fixed by nailing to the face of the existing pour prior to placing the next pour. It is installed directly onto scabbled surfaces and will swell into voids up to 12mm deep. Changes of direction and end joints are simply achieved by butting together, no welding or adhesives are required.
Dual Seal Waterstop can be applied to green concrete and in damp conditions.
Size: 7mm x 25mm
Supplied in 8 metre rolls.
Technical Data:
Typical Applications:
Construction Joint - Floor Slab Construction Joint - Wall
Physical Properties Value Test Method
- Colour: Grey/White
- Pliability: 180° bend over 2.5 cm mandral @ - 32°C 1000 ASTM D146
- Tensile strength 44.8N/mm2 ASTM D412
- % Elongation-ultimate failure of membrane: 600% D638
Type 4
- Resistance to water migration No migration at 31 m head
- Water migration at or through joint None
- Permeability through membrane 0.001 Perm
- Installation Temperatures: -20°C to +60°C
- Operating Temperatures -43°C to +132°C
- Life Expectancy Longest life expectancy of all organic membranes
- Toxic/Staining None
- Freeze/thaw and wet/dry cycles No affect
Cycling over 38mm joints No deterioration 2000 cycles
U.K Water Fittings Byelaws Scheme Listed for use with potable water. Salt Water Grade available for use when salt content exceeds 2000p.p.m.
Installation Guide
100
Alternative Overlap Butt Joint
Wall to Base Slab Kicker Joint
Base Construction to Base Construction Joint Construction to Expansion Joint Base Slab
1st Pour Concrete S ealing T E C H N O L O LTD
Concrete S ealing T E C H N O L O G LTD
Dual Seal Waterstop
Dual Seal Waterstop is fixed by nailing to the face of the existing pour prior to placing the next pour or lift of concrete. It can be placed directly onto scabbled surfaces and can be installed in damp conditions. The ability of the high quality bentonite to swell up to 16 times its dry volume ensures effective sealing around
penetrations and onto scabbled concrete.
Dual Seal Waterstop Dual Seal Waterstop Dual Seal Waterstop Extaseal Waterstop
Dual Seal Waterstop marrying to External PVC Waterstop. Old Concrete Dual Seal Waterstop Dual Seal Membrane New Concrete Sealing Joint between old and
new concrete PVC Waterstop accidentally
omitted on first pour.
Displaced PVC Waterstop.
New Construction
Before
Refurbishment works and alternative applications
Existing Membrane
After
Existing Membrane Dual Seal Mastic
Dual Seal Waterstop
Concrete S ealing T E C H N O L O LTDDual Seal Waterstop mechanically fixed around pile Dual Seal Waterstop
Pile Slab
Dual Seal Waterstop Bitusheet XLWaterproofing Membrane Dual Seal Mastic
Dual Seal Waterstop and Bitusheet Membrane detail at pile head
Dual Seal Waterstop provides a watertight
barrier to reinforcing steel.
Dual Seal Waterstop installed in construction joint outside the reinforcing steel to prevent ingress of water
Dual Seal Waterstop Protects reinforcing
steel from ground water.
Dual Seal Waterstop prevents ground water
from coming into contact with reinforcing
steel.
Dual Seal Waterstop - Typical Applications
Concrete S ealing T E C H N O L O G LTDTypical Kicker Installation Dual Seal Waterstop
Dual Seal Waterstop fixed between reinforcement
Concrete S ealing T E C H N O L O LTD
Superstop Self Swelling Waterstop
*Description
SCP Superstop has been developed to provide a watertight seal in construction joints, and is particularly effective when used in ‘box out’ applications. When water comes into contact with Superstop the bentonite expands to form a pressure seal which has been successfully tested to withstand a 33 metre head of water without leakage.
Uses
Superstop can be used in pre-cast or in-situ concrete installations and is ideally suited for the
following applications
:
•
Concrete Cold Joints in below ground walls•
Construction Joints in Slabs•
Water Treatment Works•
Sewage Treatment Works•
Pre-cast Concrete PanelsApplication
Superstop is fixed either by nailing or adhering into a previously formed 12mm x 25mm void (using a reusable void former), around the perimeter of the box out and must be confined on all four sides. Dual Seal Waterstop can be used as a puddle flange around the pipes. Concrete is then poured into the box out and compacted. Any water passing through hairline cracks between the different surfaces will cause the Bentonite to swell and form a totally watertight seal.
Sizes
Superstop available in two sizes
25mm x 12mm Roll Length 6 metres 25mm x 19mm Roll Length 3.9 metres
Dual Seal
25mm x 7mm Roll Length 8 metres
Superstop Waterstop
Superstop Waterstop
Dual Seal Membrane Dual Seal Waterstop fixed with tying wire
Superstop Waterstop inserted into preformed rebate Superstop Waterstop inserted into preformed rebate Pile Cap
Concrete S ealing T E C H N O L O G LTD
Swelltite Hydrophilic Self Swelling Waterstop
*
Description:
SCP Swelltite Hydrophilic Waterstop is manufactured from a neoprene polymer based hydrophilic compound and high water absorbent resins. Swelltite has been specifically designed for use in sealing construction joints between pre-cast concrete units, steel and in-situ concrete. Unlike traditional waterstops Swelltite is centrally placed and bonded flat in the joint prior to making the second pour, activated by water Swelltite will swell up to 5 times it’s volume and seal the passage of water by exerting pressure across the joint.
Uses:
Swelltite was primarily developed for use to provide a watertight seal between pre-cast concrete units such as concrete pipes and tunnel segments, however it can be installed into a previously formed rebate for use in in-situ concrete.
Application:
Surfaces must be smooth, dry and free of contamination. The surface must be primed with SCP primer ‘P’ and allowed to dry. Remove the release paper from the Swelltite and press firmly into position on the primed surface. Joints in Swelltite must be butted tightly for continuity. Where concrete is to be placed against Swelltite there must be a minimum of 75mm concrete cover.
Specification Clause
The Waterstop to be used shall be Swelltite 20mm x 5mm Hydrophilic rubber waterstop by SCP Concrete Sealing Technology Ltd. Surfaces to which the waterstop is to be bonded shall first be primed using SCP Primer P.
Technical Data
Expansion 5 Times volume Specific Gravity 1.62
Size 20mm x 5mm section Colour Black
Roll Size 15 metres
25% Compression load -10 plus or minus 2kgf/20mm Coefficient of water expansion = 5times.
SCP Compression seal SCP Swelltite
SCP Swelltite
SCP Swelltite SCP Swelltite
Concrete S ealing T E C H N O L O LTD*
Uraswell Hydrophilic Sealant Waterstop
Description
SCP Uraswell is a polyurethane based sealant which swells in contact with water and forms a permanent waterproof seal. Uraswell is solvent free and non-toxic and is easily applied with a barrel gun, it provides excellent adhesion on many materials including uPVC.
Uses
SCP Uraswell can be used for the sealing of construction joints in concrete and for sealing between concrete prefabricated elements, such as sewage pipes etc, and is applied up to a maximum width of 20mm.
Application
Leave to cure for 24 hours before pouring concrete. In order to achieve optimal performance SCP Uraswell should be applied in closed joints.
Technical Data
Base Polyurethane.
Consistency Stable Paste. Curing System Moisture Cure.
Tack free time 12 hours (200C/60% R.H)
Specific Gravity 1.57
Elongation at Break 625% (DIN 53504)
Slump Maximum 3mm in vertical joints. Maximum Tension 1.55 N/mm2(DIN 53504)
Swell >250% in three dimensions. Substrate Concrete, Steel, Glass, PVC.
State of Surface Free of dust, grease, surface may be damp. Preparation No primer required.
Joint Size
Minimum width 2mm
Maximum width 20mm
Average 10-15mm
Application
Application Method Caulking Gun (hand or pneumatic) apply in continuous bead
Application Temperature + 100C to + 300C
Clean with White spirit immediately after application.
Packaging and Colours
Colour White.
Packaging 600ml sausages.
Uraswell Uraswell Uraswell gun
Concrete S ealing T E C H N O L O G LTD
Dualtite Hydrophilic Expansion Joint Waterstop
*
Dualtite PVC/Bentonite Expansion Joint Waterstop
Description:
Dualtite Waterstop consists of a PVC profile manufactured from weldable waterstop grade material incorporating Dual Seal Hydrophilic Bentonite Waterstops, which swell in contact with water, to form a totally watertight seal. The lug on either side of the central section, ensures that Dualtite is fully embedded into the adjacent concrete surface, and its unique central core design allows the joint to open up to 50%. When Dual Seal Bentonite Waterstop is installed in Kicker or Construction Joints, it is simply butt joined to the integral Dual Seal Waterstop, in the Dualtite, to create a totally watertight system.
Uses:
Dualtite Waterstop should be used in all Expansion Joints, in conjunction with a Fillerboard, when there is a requirement to keep water in or out of concrete structures. These would include Concrete Reservoirs, Water Treatment Works, Sewage Treatment Works, Canals, Flood Relief Channels and Basements etc.
Application:
Dualtite is fixed centrally to the stop end shuttering, prior to the first concrete pour. When the concrete has cured and the stop end is removed, the Expansion Joint Fillerboard is then located in position, within the locator lugs, and the second pour completed. Welding of straight runs of Dualtite is achieved by using an Electric Heating Blade, and Dualtite Jig. Changes of direction are achieved using Factory-made Junction Pieces and Intersections
Sizes:
Roll length - 8 metres
Joint Width - Suits 20mm & 25mm Expansion Fillerboard
Technical Data: PVC Profile
Test Standard Property Typical Result
BS.2782 Tensile Strength 13.8N/mm2 (2000psi)
BS.2782 Elongation at break 300% (nominal)
BS.2751 B.S. Softness 45 at 20oC
BS.2782 Density 1.30
WRc Approved for use in contact with Potable Water
Bentonite Waterstop
Property Typical Result
Resistance to water migration No migration at 31m head
Toxic/Staining None
Freeze/thaw and wet/dry cycles No effect
Cycling over 38mm joints No deterioration 2000 cycles
WRc Approved for use in contact with Potable Water
Dual Seal Waterstop
Dualtite
Dualtite Fillerboard
Installation:
Dualtite Bentonite Expansion Joint Waterstop is simply nailed to the shuttering prior to the first pour. The lugs secure the waterstop to the concrete as in a conventional waterstop, however, the Dual Seal Bentonite waterstop acts as a secondary barrier. Should water try to track across the joint. This combination provides the reassurance of installing a mechanical sealing system based on the passive valve and tortuous path systems pioneered by the Cement and Concrete Association during the early 1970's, together with the active water swelling sealing systems of the 1990's.
Specifically for use in concrete expansion joints where an active waterstop is required to provide maximum integrity. Dualtite is easy to install and is fully compatible with the SCP range of construction type waterstops, it can be easily welded on site thereby providing a cost effective solution and simplifying transition between construction and expansion joints with a range of prefabricated junctions available.
Dual Seal waterstop is used on it’s own within construction joints, but when fully integrated within Dualtite offers many advantages.
Shuttering Dual Seal Shuttering Void Former Fillerboard Dualtite Dualtite Waterstop Dualtite Waterstop Fillerboard Sealant Plan Sealant Fillerboard
Dual Seal Waterstop Dual Seal
Dualtite Waterstop nailed to Stop End
Setting out the Formwork 1st Pour
2nd Pour Construction to Expansion Joint Detail
Typical Applications: Concrete S ealing T E C H N O L O LTD*
Notes
Concrete S ealing T E C H N O L O G LTDB W
A
TERPROOFING
MEMBRANES
SECTION B
SCP range of
Waterproofing Membranes
Bitusheet XL
Bitusheet HPS
Bitusheet Gas Barrier
Bitusheet Primer
Bitusheet Accessories
Self Swelling, Self Healing
Dual Seal
Protection Boards Bituminous
Bitcoat
Bitudex
Bituflex
Concrete S ealing T E C H N O L O G LTD
Sealing Systems for Below Ground Waterproofing
Dual Seal Waterstop
Butt Joint
Dual Seal Waterstop Butt Joint
Dual Seal Waterstop
Vertical Construction Joint
Pilecap Waterstop Walldrain Bitusheet XL Bitusheet Fillet Bitusheet XL Wall/Slab Waterproofing and Drainage Detail
Backfill
Bitusheet XL
SCP Walldrain Bitusheet Gas Barrier Membrane
Bitusheet Mastic Fillet 40 x 40mm Blinding
Concrete
Bitusheet Gas Barrier Membrane
Pipe Penetration Detail for Bitusheet Gas Barrier Membrane Service Pipe Bitusheet XL Membrane Extaseal Waterstop Bentonite Granules
Dual Seal Membrane HDPE Sheet
Dual Seal Membrane Laid with HDPE Side Up / Bentonite Down
Tape at Joints Reinforced Slab
SLAB
Typical Overlap Joint Vertical Applications Bentonite Face to Concrete
Bituminous Protection Board
Bitusheet XL Dual Seal Membrane Dual Seal Membrane Dual Seal Waterstop Dual Seal Waterstop Dual Seal Membrane Bitusheet XL Membrane Bitusheet XL Membrane 3mm Bituminous Protection Board
Sealing Systems for Below Ground Waterproofing
Bitusheet XL
- Cross laminated Heavy Duty HDPE membrane coated with self bonding polymer modified bitumen.
For use in below ground structures as external tanking and as a roofing membrane in covered concrete reservoirs.
Bitusheet Gas Barrier Membrane
- HDPE film laminated to an aluminium foil and coated with a self bonding polymer modified bitumen.
For use in below ground structures, and under ground slabs when it is necessary to prevent passage of methane or radon gas into the building.
Bitusheet HPS Moisture sensitive
- Cross laminated heavy duty HDPE waterproofing system, used in conjunction with moisture sensitive primer.
For use in below ground structures, retaining walls etc., when the surface is damp to touch. Used in conjunction with Bitusheet HPS Primer.
Dual Seal Membrane
- High Performance water reactive Bentonite, laminated to a tough thick HDPE sheet.
For use when external water, weather or ground conditions exist.
Bitusheet Double Sided Tape.
A versatile bituminous tape used For bonding waterproofing membranes, DPCs and for achieving lap joints between compatible materials.
SCP range of Protection Boards.
Suitable in all applications for protecting tanking membranes against backfill.
• 3mm Bituminous Protection Board.
• 6mm Bituminous Protection Board.
• 3mm Bitcoat Protection Board. • 1.5mm Bitusheet HD Protection Board.
• 3mm Bitusheet HD Protection Board.
Bitusheet XL Tape.
Used as an overband tape for the sealing of membranes to membranes. Also used for penetrations and repairs etc.
Concrete Bitusheet HPS
Membrane
Liquid Asphaltic Compound Bitusheet Gas Membrane Bitusheet Mastic Protection Board Bitusheet XL Membrane Reinforcing Strip Dual Seal Membrane Dual Seal Membrane Concrete S ealing T E C H N O L O LTD
Liquid Asphaltic Compound
- Used in Two coats to provide a damp proof membrane in solid floors or for protecting foundations, retaining walls, abutments, beams, lintels and similar structures against moisture and attack from sulphates contained within the soil.
Available in 50,75,100,150 and 300mm wide standard roll widths. All roll sizes are 15 Lm
Available in 100,150 and 300mm wide standard roll widths. All roll sizes are 20 Lm
SCP Dual Seal Bentonite/HDPE Waterproofing Membrane
Description:
Dual Seal is a high performance self swelling, self healing waterproofing membrane comprising of a thick, tough, high density polyethylene sheet laminated to 4kg/m2of quality Bentonite granules. The Bentonite used in
the manufacture of Dual Seal is capable of repeated cycles of wetting and drying without deterioration of its sealing properties and has a life expectancy measured in thousands of years. It has WRC approval for use with potable water.
Uses:
Dual Seal waterproofing membrane has been specifically developed for use as a high performance waterproofing membrane to provide a totally watertight barrier in below ground concrete construction, including basements, underground car parks, plant rooms, access tunnels etc.
Dual Seal Membrane can be installed in damp conditions and is, therefore, particularly suitable for use as a roof waterproofing system for earth covered potable water reservoirs.
Benefits:
Sizes:
Dual Seal Construction:
Technical Data:
Note:
Contact SCP whenever conditions of acid, alkali or salt brines exist. Do not apply in standing water, over snow or ice.
Dual Seal Membraine
Concrete S ealing T E C H N O L O G LTD
■ Provides a totally watertight barrier which is 10 times greater than concrete
■ Resistance to Hydrostatic head of water of 46m ■ Can be applied immediately shutters are struck to
wet surface/green concrete
■ Can be installed in damp conditions
■ Prevents tracking of water between membrane and concrete surfaces
■ Surface does not require priming
■ Installation temperature -30°C to +50°C ■ Easily installed by non-skilled operatives ■ Non-toxic
■ Eliminates need for separate protection board ■ Does not require welding
■ In excess of 5,000,000m2successfully installed
worldwide
■ U.K. Water Fitting Byelaws Scheme Listed for use with potable water.
HDPE Thickness: 0.5mm
Total membrane Thickness: 5mm
Roll Width: 1.22m
Roll Length 7.32m
Coverage per roll
(allowing 50mm overlaps): 8.59m2
HDPE Carrier Sheet
High Quality Bentonite Coating
Physical properties Value Test Method
Tensile Strength: Membrane N/mm2 27.50 N/mm2 ASTM D412
% Elongation at Break 700% D638 Type
Puncture Resistance 43kg FTMS 101B
Resistance to Hydrostatic Head (Metre of Water) 46m ASJM D751 method a Resistance to micro organisms
(bacteria, fungi, mould, yeast) Unaffected
Concre te S ealing T E C H N O L O LTD
Dual Seal Membrane
*
Dual Seal Waterstop Dual Seal Membrane installed with Bentonite (grey) face toward concrete
Backfill placed directly against HDPE (black side) of Dual Seal Membrane
Dual Seal Mastic
Dual Seal Membrane mechanically fixed at 500 centres and where terminated. All joints to be overbanded using 100mm wide Dual Seal Membrane laid on blinding
with Bentonite (grey) face to underside
F.G.L
Plyload high performance cavity tray
300mm Bitusheet self adhesive reinforcing strip adhered to primed substrate
Plyload dpc
Dual Seal Mastic
Dual Seal Membrane installed with
Bentonite (grey face) to underside Dual Seal Membrane installed with HDPE (black side) toward contiguous piling
Bentonite to Bentonite lap joint
Dual Seal Typical Installation
Concrete S ealing T E C H N O L O G LTDEarth covered roof installation with parapet Earth covered reservoir installation
Dual Seal on concrete blinding
Reinforcement placed directly on Dual Seal Membrane
Dual Seal Waterproofing membrane
Batten fixing to edge of Dual Seal Waterproofing Membrane
Batten fixing to edge of Dual Seal Waterproofing Membrane Dual Seal Granual Fillet
or Dual Seal Mastic
Dual Seal
Dual Seal resealable Waterproofing Membrane
Concrete S ealing T E C H N O L O LTDInstallation
Inspection:A. General: Examine surfaces specified to receive waterproofing to ensure that they are in a condition
acceptable to manufacturers recommendations. Ensure that voids greater than 10mm are filled with grout, and sharp protrusions over 10mm are removed.
B. Do not Install membranes in standing water.
C. Ensure that where tapes are used that the surfaces to which they are to be adhered are free from dirt, dust, snow, ice release oils and other contaminents.
D. Horizontal surfaces should be swept clean, particularly the surface of the wall footing.
Preparation:
A. Layout: Anticipate conditions prior to start of work. Note termination and penetration positions to
determine methods for ensuring a watertight envelope.
B. Fillets: Form fillets with 50mm of Dual Seal Mastic, or Dual Seal Granules at intersections of walls and footings . Form fillets with mastic at the inside of vertical corners and around penetrations.
Installation:
A. Install the Dual Seal Membrane where shown on the drawings and in accordance with the manufacturer’s recommendations as approved by the Architect and/or Engineer.
Note: In horizontal applications Dual Seal is normally installed with the bentonite face down, however, Dual Seal
LG may be installed under a floor with the bentonite side up depending on the weather and site conditions.
Bentonite Side down:
A. Dual Seal membrane is laid directly onto blinding prior to the laying of the slab, however if the substrate consists of soils, sand, gravel or crushed stone ensure that the aggregate does not exceed 12mm, a 1000g polythene sheet should be used so that the bentonite expands against a smooth substrate.
B. Unroll sheet fully and place the membrane over prepared surfaces in such a manner as to ensure minimum handling.
C. Install membrane with bentonite side down lapping the edges by 50mm. Tape all overlaps using Bitusheet tape and extend the membrane by 300mm at perimeter to allow sufficient overlap with the vertical membrane and mechanically fix at the toe.
D. Fit closely and seal around pipe penetrations as recommended.
E. Inspect and repair any damaged material before placing the concrete, by placing a square of membrane over the damaged area and fully tape in position.
Bentonite side up:
A Ensure that substrate is level and compact. Substrate may consist of soils, sand, gravel or crushed stone provided they are 12mm or smaller in diameter. Ensure that temporary cover is provided to the bentonite to prevent premature expansion.
B. Unroll the Dual Seal LG fully and lay the membrane over the prepared surface,
C. Install Dual Seal with edges overlapped by a minimum of 50mm. Joints may be stapled every 200mm. D. Extend the Dual Seal Membrane 300mm up or beyond the perimeter slab. This will be used later to tie
in vertical membrane.
E. Fit closely around pipe pentrations as recommended.
F. Inspect and repair any damaged material before placing the concrete.
G. Protect exposed bentonite from moisture by taping at joints and covering with a polythene strip at edges.
Vertical Backfilled Walls:
A. Inspection - Confirm that all areas to receive the membrane are suitably prepared.
B. Form fillets at vertical wall / horizontal intersections with Dual Seal mastic and seal at vertical inside corners, under ledges and at penetrations.
C. Place the membrane over prepared surfaces where shown on the drawings. Dual Seal is generally installed vertically to the outside wall, however it can be installed horizontally along the wall. The HDPE (black) side which should always face the installer when it is being fixed, however an exception to this would be if it was being used in blindside concrete when it is fixed to permanent shuttering in which case Dual Seal LG must be used.
D. After unrolling, the Dual Seal should be nailed across the top, mechanically fixing the membrane every 300mm and allowing the sheet to hang down onto the footing. Install 2nd sheet by overlapping onto the first sheet by 50mm. Pull taught and nail through both sheets at the overlap area, followed by Bitusheet tape centred over the overlap joint, to prevent stones and debris entering the joint.
E. Properly treat all penetrations by cutting a seperate section of the membrane to fit snugly around penetrations and bed on a 50mm triangular Dual Seal mastic fillet.
SCP Dual Seal Mastic
Description:
A trowlable mastic comprising of a special formulation of expandable minerals and elastomeric compound which expands and stiffens in the presence of water to form an impervious barrier to water penetration.
Uses:
For use with Dual Seal Waterproofing Membranes to form a 45˚ fillet in internal corners, around pipe entries and penetrations. It is also used for filling voids, tie holes and honeycombing prior to installation of the Dual Seal Waterproofing Membrane.
Sizes:
Supplied in 19 litre pails.
Technical Data:
Typical Application:
Typical Pipe Entry Detail
Concrete S ealing T E C H N O L O G LTD
Dual Seal Mastic
Material: Expandable minerals
and elastomeric compounds
Colour: Grey/Black
Water Migration Resistance: 100% Coefficient of Permeability: 10 x 10 -10
Specific Gravity: 1.2
Dual Seal Granules
SCP Dual Seal Granules
Description:
A high swelling sodium bentonite in granular form which reacts when in contact with water and forms an impervious gel.
Uses:
Used in conjunction with Dual Seal Waterproofing Membranes to form a fillet at wall to floor transitions and penetrations through horizontal surfaces.
Sizes:
Supplied in 22.7 kg (23.6 litre) bags
Technical Data:
Material: High Swelling Sodium Bentonite Granules
Colour: Grey
Typical Applications
Concrete S ealing T E C H N O L O LTDSuitable for installation in areas
with a high water table.
Dual Seal Membrane easily
installed around columns
Backfilled without the need for
Protection Board
Dual Seal Membrane used in
conjunction with SCP Walldrain
Concrete S ealing T E C H N O L O G LTD
Bitusheet XL
SCP XL Self Bonding Waterproofing Membrane
Description:
Bitusheet XL waterproofing membrane consists of a self bonding polymer modified bitumen which is covered on one side by a tough two ply cross laminated polythene film and protected on the other side by a release sheet which is removed prior to the bonding of the material on to a suitably prepared substrate. Once the release sheet has been removed the membrane can be easily applied by roller pressure. Available in Temperate . Incorporating a 50mm selvedge on one edge to form homogenous overlap joints.
Uses:
Bitusheet XL is intended for use as a self bonding vertical or horizontal damp proof membrane in tanking below ground structures, subways and retaining walls.
Sizes:
Technical Data:
Rubber Bitumen thickness 1.4mm Roll length 19.05m
Polythene backing 0.1mm Roll weight 34kg
Total thickness 1.5mm Area of roll 20m2
Roll width 1050mm Overlap Edge 50mm with selvedge
End 100mm
Test Typical Result
ASTM D146 Low temperature pliability Better than - 5°C
ASTM D2240 Durometer hardness type A 60
ASTM E154 Puncture resistance 230N
ASTM D1228 Water absorption (2 hours) 0
ASTM D471 Water absorption (670 hours at 70°F) 0.12%
ASTM D1191 Slump on 90° gradient
6 hours @ 70°C 0
ASTM E96 Water vapour transmission 25°C. 75% rh
transmission 0.23 g/m2per day
ASTM D1004 Tear strength Longitudinal 380N/mm
Tear strength Transverse 360N/mm
ASTM D638 Tensile strength Longitudinal 42N/mm2
Tensile strenght Transverse 51N/mm2
BS 2782 Compound Elongation 1250%
BS 2782 Elongation at break 210%
Method 320
ASTM D573 Percentage change in elongation after heat ageing at 70°C.
Dimensional Stability (2 weeks at 60°C)
Longitudinal 0.1%
Transverse -0.2%
Bond strength of self 40 N/cm
Bond strength to primed concrete 20N/cm
BS 2782
Method 320 Membrane strength 50 N/cm
MOAT 5.1.4 Water penetration at joint 0%
Bitusheet XL Membrane United Kingdom Water Fittings Byelaws Scheme Listed. British Board of Agrement Certified No. 94/3048.
Conforms to the DWI Water Quality Regulation 25 (1) c 1989
Typical Applications:
Bitusheet XL
Concrete S ealing T E C H N O L O LTDBelow ground tanking Earth covered water retaining structure
Protection Board Bitusheet XL Bitusheet XL PW Bitusheet Reinforcing Tape Bitusheet Reinforcing Tape
Bitusheet HPS Waterproofing System
Concrete S ealing T E C H N O L O G LTDSCP HPS Waterproofing System for damp and difficult conditions.
Description:
Bitusheet HPS Waterproofing System consists of SCP's widely used Bitusheet range of Cross Laminated membranes, applied in conjunction with SCP's high performance primer. These components have been specifically developed to promote a high bond strength between Bitusheet membranes and substrates with damp or difficult conditions and where performance is required at temperatures down to -100C
Uses:
The Bitusheet HPS Waterproofing System is designed for use where unusually low temperatures are evident and where dampness exists on the substrate. It is ideal for basement applications and previously covered earth/concrete reservoir roofs which are being renovated.
Winter Conditions:
The Bitusheet HPS Waterproofing System can be installed in most conditions and whilst having a wide
temperature tolerance should not be applied when the temperature is 3oC or more below dew point because of the risk of condensation, or when temperatures exceed 60oC. With decreasing temperature the membranes will stiffen. This will not cause any significant problems with installation down to the minimum temperature of 5oC. Bitusheet membranes remain functional and flexible to well below -10oC and will remain stable up to a normal maximum of 60oC. Where severe temperatures down to -30oC are expected Dual Seal membrane should be used (see Technical Data Sheet No.44)
Application:
Ensure that the substrate is clean and free from surface water and sharp protrusions. Apply the primer evenly by brush or spray, avoiding pooling and over application. Allow to dry before applying the membrane. If the application of Bitusheet is delayed more than 4 hours after priming, the surface must be re-primed.
HPS Primer
Description:
A pink mobile liquid designed to improve the bond between Bitusheet and Substrates.
Application:
All surfaces must be clean and free from loose matter. Primer can be applied by brush or roller, at
temperatures to below -100C, providing that the surface is completely dry prior to application of membrane.
Slip Membrane
Bitusheet XL on Bitusheet HPS Primer 300mm Bitusheet Reinforcing Strip
Bitusheet XL on Bitusheet HPS Primer
Bitusheet XL SCP Protection Board Extaseal Waterstop
