Soil Testing 24 Compaction and CBR. Compaction Test 4.5 kg BS , , EN DD ENV

Compaction Test 2.5 kg

BS 1377-4, 1924-2, EN DD ENV 1997-2

This test method utilises a 2.5 kg hand compaction hammer and a one litre capacity compaction mould.

Often referred to as the 'Proctor' test it is suitable for soils containing particles no larger than 20mm.

The mould and hammer is manufactured from corrosion protected steel components to withstand the heavy usage involved in the test.

Compaction Mould,

Specification

Mould volume 1 litre

Construction All steel, threaded studs with wing nuts, plated Weight 5.5 kg

Ordering Information

Standard Compaction Mould BS

Compaction Rammer, 2.5 kg BS

Specification

Rammer 50 mm dia, 2.5 kg

Drop 300 mm

Guide sleeve Machined steel tubing with air pressure release holes

Finish Corrosion resistant Weight 4.2 kg

Ordering Information

Compaction Rammer 2.5 kg BS

Dry Density/Moisture Relationship

BS/EN DD ENV

BS Compaction Mould and Rammers

Compaction Test 4.5 kg

BS 1377-4, 1924-2, EN DD ENV 1997-2

This test method utilises a 4.5 kg hand rammer resulting in a heavier compactive effort than the 2.5 kg test method. Compactive energy some 4.5 times greater is applied to the sample using the heavier rammer.

The method is often specified where higher levels of compaction are necessary in a structure, e.g. an airfield sub-base material.

Manufactured from corrosion protected steel components the 4.5 kg rammer is designed to withstand heavy usage involved in the test method.

Compaction Rammer, 4.5 kg BS

Specification

Rammer 50 mm dia, 4.5 kg

Drop 450 mm

Guide sleeve Machined steel tubing with air pressure release holes

Finish Corrosion resistant Weight 7.5 kg

Ordering Information

Compaction Rammer 4.5 kg BS

Accessories

EL24-9010 Straightedge, 300 mmWeight 600 g EL24-9025 Tamping Foot 146 mm dia and

300 mm long Shank

Dry Density

Moisture Content Relationship for

Soils

Dry Density/Moisture Relationship

ASTM

Proctor Compaction Mould

ASTM D558, D559, D560, D698, D1557;

AASHTO T99,T134,T135,T136,T180

Specification

Mould volume 1_/30ft3

Construction All steel, threaded studs with wing nuts, plated Weight 5.4 kg

Ordering Information

Proctor Compaction Mould

Proctor Compaction Rammer

ASTM D558, D559, D560, D698; AASHTO T99,

T134,T135,T136

Specification

Rammer 2 in dia, 5.5 lb

Drop 12 in

Guide sleeve Machined steel tubing with air pressure release holes

Finish Corrosion resistant Weight 4.1 kg

Ordering Information

Proctor Compaction Rammer

Accessories

Straightedge, 300 mm

see EL24-9010

EL24-9060 Proctor Mould and EL24-9063 Compaction Rammer

ASTM Compaction Mould

ASTM D698, D1557; AASHTO T99,T180

Specification

Mould volume 1_/ 13.33ft3

Construction All steel, threaded studs with wing nuts, plated Weight 8.2 kg

Ordering Information

ASTM Compaction Mould

ASTM Compaction Rammer

ASTM D1557; AASHTO T180

Specification

Rammer 2 in diameter, 10 lb

Drop 18 in

Guide sleeve Machined steel tubing with air pressure release holes

Finish Corrosion resistant Weight 6.3 kg

Ordering Information

ASTM Compaction Rammer

The time and effort required to prepare specimens for compaction studies and other test methods can often be costly and time-consuming.The use of an automatic, mechanical compactor will show considerable cost benefits over hand compaction methods.Two models meeting the requirements of BS and ASTM are available..

Automatic Compactor

BS1377, EN DD ENV 1997-2, 1924; ASTM D558, D560,

D698, D1557; AASHTO T99,T134,T135,T136,T180

■

Pre-set blow pattern ensures even compaction

■

Solid state controls for reliability and ease of

maintenance

■

Automatic re-setting of counter after completion

of blow pattern

These machines automatically compact specimens eliminating the laborious hand compaction method.The height and weight of the rammer is adjustable to suit test requirements.

An automatic blow pattern ensures optimum compaction for each layer of soil.The rammer travels across the mould and the table rotates the mould in equal steps on a base that is extremely stable. The number of blows per layer can be set at the beginning of the test.

Specification

Dimensions (l x w x h) 430 x 250 x 1400 mm

Rammer BS/ENV Circular faced, 50 mm dia, adjustable to 2.5 kg or 4.5 kg weight

ASTM Circular faced, 2 in (50.8 mm) dia, adjustable to 5.5 lb (2.5 kg) or 10 lb (4.5 kg) weight

Drop BS/ENV Adjustable to 300 mm or 450 mm ASTM Adjustable to 12 in (305 mm) or

18 in (457 mm)

Weight 98 kg

Ordering Information

Automatic Soil Compactor, BS/ENV For 220 – 240 V AC, 50 Hz, 1ph

Accessories

Standard Compaction Mould see EL24-9000 BS CBR Mould Body

see EL24-9198 BS CBR Extension Collar

see EL24-9200 BS CBR Solid Base see EL24-9204

Automatic Compaction of Soils

EL24-9090 series Automatic Soil Compactor with accessory Mould

Ordering Information

Automatic Soil Compactor, ASTM EL24-9095/01for 220 – 240 V AC, 50 Hz, 1ph EL24-9095/02 for 110 – 120 V AC, 60 Hz, 1ph

Accessories

Proctor Compaction Mould see EL24-9060 ASTM Compaction Mould

Both these tests incorporate a Moisture Condition Apparatus.The MCV is a measure of the minimum

compactive effort required to produce near full compaction of a soil.The CCV measures the rate at which a sample of chalk lumps are crushed. Used with the saturated moisture content of chalk, CCV can be used to classify chalk as a fill material.

Moisture Condition Apparatus

BS 1377, EN 13286-46

■

TRL approved

■

Improved design

■

Simple portable apparatus

■

Automatic blow count

The original Moisture Condition Apparatus was developed by the Transport Research Laboratory, England. ELE has redesigned the equipment to give improvements in terms of strength and reliability, particularly under site conditions.The ELE model is TRL approved and is used in construction control to assess the suitability of earthwork material in relation to the specified upper limits of moisture content. In a second mode of operation, it determines a ‘chalk crushing value’ for use in classification of chalk as a fill material.

To assess the suitability of earthwork material a ‘moisture condition value’ is determined. The test is based on the determination of the minimum number of blows of the rammer required to produce a state of full compaction in a sample of soil. After calibration over a range of moisture contents the suitability of earthwork material can be assessed without the measurement of the moisture content of the soil with its associated delays.The chalk crushing value is determined from the rate at which a sample of single-sized chalk lumps (passing 20 mm and retained on a 10 mm BS sieve) is crushed under the impact of the rammer.The chalk crushing value, taken together with the value of the saturation moisture content of lumps of the chalk, gives a classification in terms of the likely behaviour of the chalk during construction.

Operation of the apparatus is extremely simple.The rammer is lifted, when it reaches the top of its travel, a striker attached to the cross member releases the automatic catch allowing the rammer to fall.The rammer has a scale for measurement of penetration into the mould. After each blow, the height of drop can be reset and checked by means of the vernier gauge supplied.To record the number of blows, a counter is fitted to the release mechanism.

Ordering Information

ELE-Moisture Condition Apparatus

The apparatus is supplied complete with vernier caliper, mould, 6 fibre discs, operating instructions and standard forms for determining Moisture Condition Value and Chalk Crushing Value. Dimensions 300 x 630 x 950 mm (l x w x h).

Weight 60 kg

Moisture Condition Value (MCV) and

Chalk Crushing Value (CCV)

A number of options are available to to collect and analyse data with the ELE CBR-Test 50.

1 Mechanical, using standard Load Rings and Penetration Dial Gauges.

2 Electronic, Load Transducers and Displacement Transducers in conjunction with the ELE Electronic Control and Readout Unit supplied with download software.

3 Electronic, using Electronic measuring devices as above in conjunction with the ELE DataSystem that provides full analysis of CBR Test data.

CBR-Test 50 Machine

BS 1377, 1924; EN 13286-47;ASTM D1883; AASHTO T193

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Two speed machine (BS/EN and ASTM)

■

Rapid platen adjustment

■

Complete with stabilising bar

■

Compact, bench-mounting design

■

Options for mechanical or electronic measurement

Designed for performing laboratory CBR tests to BS 1377 and ASTM D1883, this bench mounting machine comprises a twin column frame incorporating a motorised drive system.Two speeds are provided, 1.0 mm/min for BS and 1.27 mm/min for ASTM tests. Rapid adjustment of the platen is provided which enables daylight to be taken up quickly and also close control of application of a seating load.

Specification

Dimensions (l x w x h) 550 x 400 x 1 220 mm Maximum vertical clearance 800 mm

Horizontal clearance 255 mm Platen diameter 133 mm Platen travel 105 mm Weight 80 kg

Ordering Information

CBR-Test 50.A 50 kN Load frame complete with stabilising bar EL24-9150/01 for 220 V AC, 50 Hz, 1ph

EL24-9150/02for 110 V AC, 60 Hz, 1ph

Electronic Control and Readout Unit see EL27-1200/09

Spare

EL24-9170 Stabilising Bar

The California Bearing Ratio test, or CBR test as it is usually termed, is an empirical test first developed in California, USA, for estimating the bearing value of highway sub-bases and subgrades.The test follows a standardised procedure and there is little difference between BS/EN and ASTM tests. However, there are numerous ways of preparing samples and in this respect American practice differs in detail from British practice.

This test can be performed in the laboratory on prepared samples or in-situ on location. It is important to appreciate that this test, being of an empirical nature, is valid only for the application for which it was developed, i.e. the design of highway base thicknesses.

California Bearing Ratio

Load and Penetration

Mechanism of Failure

Penetration Piston and Dial Gauge Assembly EL25-3700 series MultiPlex 50 with Accessories

MultiPlex 50 Machines

BS598, 1377, 1924; EN 12697-23, 24, 13286-47;

ASTM D1883; AASHTO T193

A versatile 50 kN capacity machine for performing laboratory CBR, Marshall and Quick Undrained Triaxial tests.

Ordering Information

MultiPlex 50 see EL25-3700

Electronic Control and Readout Unit see EL27-1200/09

Force Measurement

A range of load rings will be required depending upon the type of material being tested.

Detailed below is a selected range of load rings which are suitable for differing values of CBR.

Model no. Capacity Value of CBR

EL78-0060 2 kN Up to 8%

EL78-0460 10 kN 8% to 40%

EL78-0760 28 kN Average range of CBR

EL78-0860 50 kN Above 40%

Full details on the range of available load rings are in Section 78, Load Measurement.

Penetration and Measurement

Ordering Information

Penetration Pistonwith 1.935 mm2_{(3 in}2_{) area foot of}

case-hardened steel. Designed to fit all ELE load rings. Weight 3.7 kg EL24-9183

Penetration Piston as EL24-9182 but with a coarse stem adjustment.This piston is particularly useful for in-situ testing. Weight 4.0 kg

EL24-9184

Penetration/Swell Dial Gauge, ASTM 1 in travel x 0.0005 in divisions. Complete with rack extensions and chisel edge anvil. Weight 220 g

EL24-9186

Penetration Dial Gauge BS25 mm travel x 0.01 mm divisions. Complete with rack extensions and chisel edge anvil.Weight 220 g EL24-9188

Bracket and Adaptordual purpose mounting bracket for CBR penetration dial gauges. Allows gauge to be fixed to penetration piston or load ring. Weight 300 g

CBR Moulds and Accessories

ASTM Mould and Accessories A range of moulds and accessories specifically designed to

meet the requirements of the relevant standards.The equipment is manufactured from high quality, long-lasting material and with regular maintenance will give years of satisfactory performance.

CBR Mould

BS 1377, 1924; EN 13286-4, EN DD ENV 1997-2

Specification

Mould 152 x 127 mm (inside diameter x height) Collar 51 mm height, fits both ends of mould Base plate Solid, fits both ends of mould Construction All steel, plated

Weight 7.3 kg

Ordering Information

BS/EN CBR Mould Body EL24-9200

BS/EN CBR Extension Collar EL24-9204

BS/EN CBR Solid Base/Top Plate

Accessories

EL24-9202 BS/EN CBR Perforated Base Plate. To fit mould body.Weight 1.8 kg

EL24-9206 CBR Cutting Collarto fit BS/EN mould body.Weight 1.4 kg

EL24-9208 C-spannerto fit BS/EN CBR moulds and collars.Two required.Weight 1.7 kg each EL24-9210 Base Plate Toolto fit into base plate to

assist removal from mould body. Weight 700 g

EL24-9212 Static Compaction Plug Steel, 150 mm dia x 51 mm thick. Complete with removable handle. Weight 7.3 kg

EL24-9214 2 kg Annular Surcharge Weight, BS/EN EL24-9216 2 kg Split Surcharge Weight, BS/EN

Tamping Rod see EL34-0130 EL24-9220 Filter Papers, 150 mm diameter.

Box of 100

CBR Mould

ASTM D1883; AASHTO T193

Specification

Mould 152.4 x 177.8 mm (inside diameter x height) Collar 50.8 mm height, fits both ends of mould Base plate Perforated

Construction All steel, plated

Weight 9 kg

Ordering Information

ASTM CBR Mouldwith collar and perforated baseplate

Accessories

EL24-9236 ASTM CBR Cutting Collarto fit ASTM CBR mould body, manufactured with a cutting edge to enable undisturbed samples to be taken in the field.Weight 1.5 kg EL24-9238 ASTM CBR Spacing Disc

150.8 mm diameter x 61.4 mm deep. Weight 6.8 kg

EL24-9240 Filter Screen150 mm dia, 150 µm mesh. For use with ASTM mould

EL24-9243 4.5 kg Annular Surcharge Weight, ASTM

EL24-9244 5 lb Split Surcharge Weight, ASTM EL24-9245 5 lb Annular Surcharge Weight,ASTM EL24-9250 Filter Papers, 150 mm dia. Box of 100.

BS/EN Mould and Accessories

Expansion (swell) Test Equipment

Ordering Information

Swell Plate.With adjustable stem.Weight 540 g EL24-9262

Swell Tripodfor mounting Swell Dial Gauge in position on CBR mould collar.Weight 700 g

EL24-9268

The use of in-situ CBR apparatus on road construction contracts enables the bearing capacity of soils to be determined quickly and efficiently with minimum delay to contracting plant. BS 1377, BS 1924 and ASTM D4429 describe in-situ test procedures.

In-situ CBR

EL24-9290 45 kN Mechanical Jack In-situ CBR test in progress

EL24-9341 Conversion Frame for Laboratory CBR Test, with Accessories

Conversion of In-situ to

Laboratory CBR

The In-situ CBR jack assembly can be mounted in a simple conversion frame to measure CBR values in the laboratory.The frame is used with the jack, a suitable load ring, CBR mould and penetration piston.

Ordering Information

50 kN Conversion Frameto adapt the mechanical jack for laboratory CBR tests.The frame is of a two-column

construction with an overhead beam to accept the mechanical jack EL24-9290 and is supplied complete with stabilising bar. Weight 53 kg

Accessories

EL24-9290 45 kN capacity Mechanical Jack 28 kN Load Ring see EL78-0760 Penetration Piston see EL24-9183 Bracket and Adaptor

see EL24-9188 Penetration Dial Gauge ASTM

see EL24-9184 Penetration Dial Gauge BS

see EL24-9186

Ordering Information

EL24-9290

45 kN Capacity Mechanical Jack.The body is corrosion protected and houses an enclosed worm and wheel gear.The gear ratio has been carefully selected to provide a handwheel speed that can be comfortably maintained, particularly with soils of high CBR value. A quick-release device in the screwjack allows the plunger to be rapidly adjusted prior to the test.Weight 8.2 kg EL24-9298

Land Rover Bracket

Fits all models in Land Rover series 90 and 110 EL24-9300

Ball Seating Attachmentfor fitting between the mechanical jack and reaction point.The ball seating is used when testing over undulating ground to ensure that the jack, load measuring ring and penetration piston are truly vertical. Non-axial loading of the load ring will give false results and will eventually damage the ring itself. Weight 1.8 kg

EL24-9308

Set of Extension Rodsmade from high-quality steel with large-section thread for quick assembly

EL24-9312

Datum Bar Assemblycomprising 2 tripod stands and a datum bar. Weight 5.7 kg

EL24-9320

4.5 kg Annular Surcharge Weight EL24-9322

4.5 kg Slotted Surcharge Weight EL24-9248

9.1 kg Slotted Surcharge Weight

Penetration Piston see EL24-9183 Penetration Dial Gauge ASTM see EL24-9184 Penetration Dial Gauge BS see EL24-9186 Bracket and Adaptor see EL24-9188