AASHTO T-245

Stqndard Method

_of

_Test

_for

Resistance

_to

ptastic

_Frow

_of

_B¡tuminous

Mixtups

_{Using Marshatl Apparatus}

AASHTO

_Designation:

_T

_{Z4S_9T}

₍₂₀₀₁₎

1.

_SCOPE

1.1

_This

_{method covers}

the measurement

of

_{the resistance to plastic}

_{flow of}

c_ylinclrical specirrrcns rri.

bituminous

_{pavingmi)(ture}

_{loade«l ,rn}

th"

lur",.tsurlace

_by.,-,,,"n.r

_olttre

_{t,ta¡st.a.tt apparatrrs..l.hr..}

ff[11:;-}[i:

ilj'#'i|;fi:,1;::'"'"t

.,*pt'utt'"'"n',

"pn.r,

.,,ii,,,ck.r,.r,

,,,r,r iigr:r,q,,,,.

2.

_APPARATUS

2.1 _specinten

_Mokr

As.sembly-Mord eyrinders _{101.6 mm (4}

_in.)

_{in dianreter}

by

16.2mrn

(3

in

)

in

ñeígfrt' _{base plates,}

_{andextension.áIlu.r}

rÁolf

.nnrorr'to

trr"

_{á.,a,r, sñ.wn}

_{in Fr.gurc f}

_.

.fhree

-r¡mota cylindcrs arc recommended.

Compaction Mold Syrnmebícal AboutThis C

Figure

1

-Compaction

tv1«;ld I 4%'o.D. 4y.. t.D.

h_

4,ys_ Js;á.'D 4y.'D

Compaclion Mold Assembled

with Colar and Baso ptat6

Steel-Cadmium plated Compaclion Mold Base Plate

T

_\(

a-L--

4.oos.

rs-2d

T

245-1

AASHTO

a. '!'

a?-Table 1-a?-Table

_of

_{Equivalents for Figures}

t

and 3

Metric

Equiva-lents, mm U.S. Customary Units, in.

Metric

Equiva-lents, mm U.S. Customary Units, in.

Metric

Equiva-lents, mnl U.S. Customary

Units.

in. lv{et¡ic Equiva Ie n t.s, 0.l l 0.8 t.6 3.2 4.8 6.4 7.t 9.5 \2.6 t2.6'7 12.7 14.3

rt

ts.s o lxLs t,_tt2 l,lto tl tt2 ft t).496 0.499 t7 ll l, .i8 7 61.s 69.8 7l.0 762 82.ó 87.3 98.4 l0t.2 r0t.3.5 J».41 ¡01 .6 I 0l .73

,ti

l

3'/," -,, .\ /t 1.990 3.995 4 4m5 r08.7 I(».I I 1.1 .1 tr7 -5 tzaó t28 6 130.2 t.16.0 t 52..1 t58.8 i93

l

(;8-5.8 LI.:i, C ¡.r¡1,¡¡1,,,., .to,,,l J',', .! t, 5 ',,, ^ 5,.,, 5'/, )7.5 19.0 ,a a 23.8 25.4 28.6 3 r.8 34.9 38. I 4 I.3 44.4 50.8 51 .2 llt , t6 )t I t'.b

l'/,

l't,

I tl, lt/,

l't,

) rl, mm {lnttS. ll.t 104.8 J ". ¿.¿.. Éfammer WeÍgñt 10 lb,4536 g

Fig'ure

2-Compaction

_Hammer 2.3.

+

&

Spring Guide

@

m

Sloevo

.@

mm)

r

ñ

I Foot

'Ir

3 (98.4

-L

{@)-

_-r

N

Handlo

speci'nten and _{12'7 mm}

Extractor'

_1ll2

_in')

steel,

_thick

in

_{r,'""^t.oating,tri'.nn',no.,.d}

the form

of

a

disk with

a «liameter not lcss than

_{lü) ¡"¡}

(

r

{)j

,r

s¡recimen from thc s¡rccinrcn ,)rriLj

r,,ri

the usc

o[the

mord

cottu.

A

sr.titabr",tit

_i","q"ir.tl

_tot¡ansfvr

the

\r,¡d

frorn rtrc

,nr

dynamometer _{adapter to the extcnsic,n c<¡lra,}

*hire

_{extracting thc specir,en}

compaction

_{Hammer--Thecompaction hammer (Figure 2)}

sha,

havc a frar,

circular

ra.rilli*{lg i.r

and a 4536

t

_{9 g}

(lo

_t

0.'02

lb)siidi"g

;;üil;

_i;n"lujing

_;r"i,

_n"g",

_guard

ii

so ccruir¡nr.ir, ,.r,:i,

frecfall of 4S']2

+ _{1.524 mm}

_(lg,tloo

_ir".t.,

'

N

N

s

i E C

*EF::=::¿re-_*

Elension Rod cl ¿ o o ñ o e o ñ

r

c

o E c ñ

r

TS.2d

T 245-2

'\.1 :"

1--r

2.4.

2.5.

2.6.

Note

1-The

comDaoirrn

h"-*--

_

Figure

z.

--"'¡'action

hammer may be equippcd

_with

_{a fingerr sa[cty}

guar<j as shown

_,r

Note

_{2-Jnstead of}

_{a hand_operarcd}

h¡mmcr

2'4,

and 2.5' a

mechani.rily

_{op;;;;; ffi;'Ji}

_{1'i..',t:ut'ot:rl}

equipmcn.t _{describert in sections}

r

.r

results comparable

_with

_,il

_{h.';;;#il;::fr?.be}

uscd

provitlcd

_¡t

_i,r.

_t,"",,

_{..r'i'h;::i';,,}

F,,,

compaction

_{PetlesÍal*T're}

compaction pedestarsha, consist

_of

_a

_203.2

_by

203.2-by 4-57.2-rnrn

Jtiltiii'JfiJp"r

*;;.6ü

fiI,i,

,*

r-

úv

_{:o¿'s-'ír"lr}

_.

_{,n* 02.}

by

,2.

by

,.in

)

Tir,

ris,ffi

iif

iülti,",l*'#,*':,rl:#i[:¡1x;

ru;:nt

r

be installed _so

_thar,¡.

_{p*,1p¡l#;#:T,rp}

is

rever. -

rñe

p.o"triirr-r'.riiirnr,,

Specimen _{Motd Hotde,}

;jl*mng*",.Hji¡;:,ffi:Ir,§:,ri:ii:::ji,::',l,il:::'fi[,.,Jt,11i,,,,,1,,,,,,

ur:::!':lHearl--(Figurej)

shail con.s-¡s.r

_of

_{upper and,rowcr}

clrindricar

_segrncnrs

_or

_{resr hcrds}

nav¡ng an inside radius

of

curvr,rr"

"i.ioi

"i;, f,

in.)

act:rrraiclv

mrc

sb¡rr

_l,*

_{maunted on}

_¡

_{ba-ce;;,rr;;;il#i;J,í]:}

],:,::":"':1,

machincci. 'r'hc rt¡rvcr

."g,,.,,,

sreeves,"

i¡"',,i*,.'*ffiiffieJ];,::ff:t::,r,,gd;;;.,,r.;i';:,.

_{r:xr.r,rJjn¡ ,,p.,,,.,,1 ¡;,,¡,,,.}

witho'r

appreciatrc

_biiaing

",

r".r"

,,rii;i

;;H:::I':',:i,l]'".,

rhc 1rv1,

,.g'n",i,.',,,g..,i,.,

Tl.

rs-2d

T 245_3

AASHTO

o-ÑL

(J

r.-I'O oc{ or

rli

ñ>

xó

_J¡

o(D

o

g

o

o

E

.%

¡*

gl/

l

_lx

ft.r

-il

_tt

o C o

:E

IE

do)

Fa ^a

§

]

0) o a @ ,E

Í

_o (§ ¿ D_(o o I E (L

JL_

tgtr'

}(

+E

_{§ n,**}

E ñ ID ú. o o U? o

@

L

o

)

o

J ! tú

o

I

a

o

F

:l

q

LL o o

rñ

o)

\-./

c

áar

ñ:J d) *

§i

:f!

uJl

-,u ¡:l

c0

cn L '- LL

T

l"

I

I

I

t@ 'o

6

LI

€l

!N Cq

'a)

bE

É3

3ñ

o

(u

o

o-)

13 (g o) :E

o

o

F

t=-.r,

_____{ .Ytt o 6

Ee

60 _ c\.t .C,

oS

B

x.

s

1T-h.-*

I

.I

v

-'E'

¡\§

L.x,l.x,

)

L F Cf §¡ \t

-l

.%

r

|*r 4

§

I

li

F-"e

AI

v---i

t;

ñi

I \ r

AASH

IO

-I

_245-4

TS-2d

A+-l

Front

T-

_I I I J I I

v

.9_o I x

I

o

€

E @ ú, @

I

N I I I I

l_

2.7.

toadíng

Íack-The

toading

jack

(Figure 4) shall consist

of

a screrv

jack

nrountc<J rn a testing

Lrame

and shall produce a

uniform veñical

movement

of

50.8 mrn

(i

in.)/min. An

electric moror

-ñay

_{be attached to}

rhe _lacking mechanism.

Load Beam Ring Holding Bar Dial lndicator

Proving Ring

Spring Steel

Proving Ring Adapter

HolóOown

8o[

Vertical Spacer %'(1e.0 mm)

Hold-Down Boll 'rlsrtical Spacer (101.35 mm) Dia. _{%'(186.1 mm)} HP-1725 rpm Elect Motor Elevating Screw Output Shafl (for Hand Crank)

lnput Shaft Jack Housing

Section'A-A'

F

igure

4-C<tmpression

Tesfing

}{achine

2.9.

Note 3-Lnstead

of

ttte _{toading iack,} a mectr.anicat

or

hy<i.rauti: testing machrne m..ry tv: ,sse<l provided the rate

of

movement can be maintaine«l at 50.8 mnr (2 in.)/nrin

while

the lr.>aci rs appliccl

Ring

Dvnamonrcter

Asse¡ná/y-One-ring

dynamometl.

_lfigure

4)

of

722KN (5ü)0

)bl)

cirp:rcrr.,

and

sensitivity

of 44.5

N

(l0lbfl

up to 4.45

KN

(l000lbf)

and

1l

l.2N

(25

lbl)

benvcen.l.J-5 uncl

22.2

KN

(1O(D anü

5tC0

lb|

st¡all be equipped

with

a ¡nicrometer rli:ü.'The nricronrcrcr dral

sir¡ll

*be

gradualed in 0.0025 mm (0.0001

in.).

Upper and

lower ring

dynamometer arrachmenls arc

Tfrequired

_{ftrr fastening the}

_{ring dynamometéito}

_{ttre testing frame arx] transrnitring}

the loirtl ro rhc

breaking head.

Note ¿l-lnstead of

the ring dynamonreter assembly,.any suitablc loa<l-measuring clcvice rna1. l-,c

used provided the capacity and sensitivity rneet.the above requircmcnts.

Flowmeter-Tlle

flowmeter shall consist

of

a guide steeve and a gage. Tl¡e acrivating prn

ol

rlrc

gage shall slide inside the guide sleeve

with

a slight amount

of fiictional risisranie.

T'hc guiilc

t'leevc shal\ slide

{rcely

syer tt}e guide

rrxl

of thc breaking

hcrd.'[he

t]o'wmcrer _BaBe

sh¡\\

be adjusted to _{zero when ¡rlaced} in positit"rn on the breaking hcad whcn eaclr

indiviclu¡l

tcst spccirrtrr

is insertcd between the breaking hcad segments. Graduations

of'the

f'lr>wmeter

grgc

shell be in

0.25-mm (0.0 l -in.) divisions.

Note

S--lnstead of

the fl<:wmeter, a micrometer dial or stres§-strain recorder _{frra(luilred in} ().1.5

mm (0.01

in.)

may be used to measure

flow.

---l

Jack Head

--I

Not Over 3.990; t-!

:-.

t="

t 2.8

TS.2d

T

245-5

AASHIO

2.10.

2.11 .

2.12.

2.13.

2.14.

2.15.

2.15.1

2.15.2

2.15.3.

2.'15.4

2.15.5.

2.15.6.

2.15.7.

2.15.8.

2.15.9.

2.1 5.1 0.

?{f!';

!;;,"1:f.'r.üil:ffiHJ,",',".','}:T,::Jj^.r;Hror

rr.earinr aBBrcBarcs, _b,rumin,,,,s

motding _{remperarures..rr}

¡s,ecommJni"ü',¡,,

_{,h;il;;;;;t,ffi:HJ.|[J:][[lil:iffi1:.}

as

to

_{maintain thc}

_{rquiyd,..p.."irr" üthin2}

_{g,Cffi.:ñil.}

shields.

baffle

plares,

or

sa¡rti

baths shaa be used on the

surfal"r.ii.'rr",

_prrt.r,o

rniíir]ir".i*.,,r.«1

_ovcrhearing

llearing Device*A.small

_{hot plate with}

continuou.sry _{variabrc heating}

rate, a sand bath,

infi¡rc,l

il,T,?,i,"l,li.ili;l,io,.

¿_,;*

Jr,,iiü'.",,,,0,"

r",,írpL,i"r.,li.,.,,

hea! under

_tb.

,nii,xing

:f

¿t'ftril"ff

*-ffft,1.rj;*Lgmu:r*;l;xti"ffi

ilii:[í:.ai:r

\*Iixing

Apparatus-Mechanic¡J

mixing

_is

¡ecommendqi.

_Any.typcof

mechanicaf _{mixer mav be} used provided

_it

_can

_b"

_{mainta¡neJ-"iiñ"}

r"qr,r.¿

_*ir,"g

_{;;"í,"i.ff*"}

and

wi,

produce o

*.ir-coated' _homogeneous

mixture

"r,tr"

rüri*á

_"*or"ii,

ir.,"

ri",#',.

_{rinre, and flurthcr}

provrd-e,.i

lT:TI#l'J

_JI

_;:ii'"'J;:I

;=

;

;;

;;;;;;;

ffi

;' _;", 1'

i"'ll

*,

o

f

s u f f , c i c n,

.,

_n.

Ji,,

.

.,,

watter

Barh=-*The _{waler bath shall}

bc at least 152.4 mm (6

in.)

deep ancl shail be thermostatica[y controtted _{so as ro mainrain}

tr,"

¡att

"iLó=

,.c

Croó

*

r"r1.j,;;.[:

_{l.C (t0o-t2.F)..!lre}

r¡nk

shall _{have a perforated}

_{r'rit.u"¡,o,n}

or

ü

"qripp"a

*i,r,*-r'rr.irinr-r,,ppur,ing

.specirnens _{50.g rrrr.n}

(2

in.)

a[¡¡y6 _{the borrom}

_of

_{rhe barh.}

iíff:h:i:,il^li*fi:XTl'ii'"BiiiT'ffi

sh¡rr bc (hcrm.sraric¿rrrv

_c,,.r^,rcd

;,n,i si,:rrr

lll

isc e I I a ne o u.s Eq u i p»rcn t :

container'r

_for

_Heating

_Aggregates-

flat-bottom _{metar pans or other}

suitab.e con(aine¡s.

'rr

::#;:::*;trx:#Bituntittous

Mareriat-

_-either

_gilt-type

_{rins, beakers,}

pouring pors. or

Mixütg

roo{*--eithcr

_{a steel trower}

{garden type) or _{spatü.Ia, fclr spariing, and hancr} rnixing.

'T'herntome

ters*for

_{de'lerm)ning temwÍa¿urcs}

<t[

aggregates, _{óifumen, and}

bitumin,us

nrixturcs.

Ito:*

t,lss'

diar rype, or

aigltul

tt

e,n,i*-",".,

_{wirh metal stems ar}

trom e e ro 204"C (50 _to

_a,o?j.

_{*i,r,.""r1il,tr;¡2.;.;¿ (5;üT,;ffi:ff.,mmended}

_A

_rangc

Il:H:,I:HljI,}H:f¿#::1il:1sitivc

ro 0

2"c (04"F)

_{rvirh a rangc}

_surncicnr

r.

[]¡116a¡¿-/-kg

':aprcity,

sensitive to 0.

t

g,

f.r

weighing _{morcred specilncns.}

Balant:e-S-kg

_{capaciry. sen-cjrjve}

ra 1.0 g,

for

batchingmix(r¡res.

Gfuv¿s-for

handling _{hot equipment.}

Rubber

_Gloves*for

_removing

specimens

_from

_{water bath.}

Marking Crayons*f<.r identifying

_spccimcns.

rs-2d

T

245-6

2.1 5.1 1 .

2.15.12.

Scoop*flat

k¡tto¡n,

_{for batching aggregatcs.}

spoon*large,

_for

_{pracing the mixture}

in

rhe specimen molcrs

3.

3.1

TEST

SPECIMENS

{;.'k:{lf::rilnens-Prcpa¡e

at lea.sl three specimens for each

cornb¡nariorrcf

_{aggrcg.rcs ;rnci}

Prep<r«cwa

_o{

_{A'g,zr1za,tas-Dry}

aggregares ro cr¡nstant üurs¡i

_{at t05}

_to

_I

_ltrc

_{(.221 to}

_23ffF)

ancl

#3i::t;j}eassresates

uv

a'v-sievirig

iíto

the

a"si,.¿rir"

ir.ii,.i,

'

rhe

rouowing

rJJrrr.,iun,

I

25.0

to

19.0 mm

(t

to

_{1r in.)}

r

19.0 to 9.5 mm 13/a to 3/s

in.¡

r

9.5 mm to 4.75 mm (l/s

in.

to No. 4)

a

4.'15 mm ro _{2.36 mm (No. 4 to No,} g)

¡

Passing 2.36 mm

(No.

g)

.

Detennination of

Mixing

and Compactittg .I.e

¡nperotures:

The ternperatures to wñrch _{tñe a'spfraft cement antf asplraft curb¿rck rnus( bc ñcarecl}

r.

_¡rr.r/rruc u

vi.scosity

_of

_{170 + 20 cSt shall}

be thc miring'remperaturc.

'rhe

_temperature

to which asphalt cemcnt _{nrust be heated to}

prociuce a

vi.scosir),oi2ti0

*

.r0 r:.\r

shall bc rhe compac(ing _temperature.

From a _{composition chart flor the asphalt}

cutback used, determine

lrom

irs

visc.sity

ar 60"(]

$4rD

the ¡rercentage

of

solventbi;.;;.;ro

_{rJetermine fro¡n}

the charr the

visc.siry

_{ar ócnc}

(14trD

of

üe

asphalt _{cutback after}

_it

_ili;;50

perccnt

.f

irs.sofvenr.

_Thc

_rempcrarurc dete¡m)»ed fuom the vjscosily

_{reaperaile .i,urt to-*r,l"h}

the

isphalt

_{cutback must be heate<J}

tcr

r:T:T"il:fi::ffi::"tio

"si

afte*

r;;;;ó;;;Jil,iilil,,8i;;".i;;;'

.".,1,,,

_,..,,

_,

'The

_temperature

_to

_which

tar must be heated to pr<>cluce _{Engler specific viscositics}

o12.5

*

_-l ;rnrl 4O + 5.sfráfl be, respecrrvuly, _tfie

_mixing

_urJ*rnprr,,

ng

temqrature.

P re¡rr rot ir>n of M r_rrrt re s..

A¡

jnitial

_{hatch shall bc}

míxcd

for

thepurpose

_{of "buttering,'the mixturc}

b.wl

and

srirrcrs

.r.rrr

batch shail _{be cmptie<J arter}

_mixing

_a;í;;;;",

of

the

boír

_;J

_;;i;;r.

shan be crcanccr t¡r.

mlxturc

residuc _{by scraping}

_with

_ismall

_l¡*tcr

spatula but shall

_n.r

_{be wipecl wirh clt.rrh}

_.r

wasl¡ed _{clean wtth}

'solvént,-except

*h";;

.h;;geis

_{Io bo madc}

_in

_rhe

_bindcr

t¡r ;rr rhe

c.d

.r

¡

rLrn

lveiglr

innr _{separaru pans fcrr}

eacft resf .spccimen ¿lie arnour¡¿

of

eac,h size fracti<-¡n re<¡uired _to

ffiduce

a barch that

wilrresurt

_in

r.";;;;;specimen

63.5

* Irt;*,

_{(2.5 + 0 0-5}

_in.)

_in

heighr

(ábout

_l2ü)

_8)'

_Mix

_{the aggregafc}

incach

p.n

_{und place the}

_p;..;

_{o hor}

_prrt.

or

i,-, rhe ov,en an<J

heat to a temperature _{no-r exceédin8 the}

_mi;in;

temperature

_{istablishett in section}

3.3 by morc than approximarery

_2g"c

_(srel

_roi

_{asprrrii'..il*,}

and rar mixcs ar

l4"c

(25"F-) _{ror curir¡ck} asplralr

mixcs'

Hea(' _{fr: rfic}

_{estaílist¡e,J'Á¡*¡ri'i"^peruture,ju.sr}

sufficicnr

_{bi¿uminotr.s r¡ia1c¡.ir/ ¡()r}

the batch

in

a separate _{container' charge tr.,.}

_i,i^irrg

bowr

with

_{t¡" i.or.a}

_aggregare.

_F.rm

¿r r:ralcr

in the dry-blended _{aggregate and weigñ}

tn"

pr"heutea requirecl ¡moturt

of

birumin.us nr¡rcri;ri

intr.r

3.2. 3.3.

3.3.1.

1aa

3.3.3.

3.3.4,

3.4.

3.4.1-3.4.2

TS.2d

T

24s-7

AASHTL\

3.4.3.

"rr

the

mixture'

_{For mixes prepared with cutback}

asphalt, _{infrocluce thc}

_mixing

_blarle

_in

_thc

_mixi.g

bo'wl anÓ daerm¡ne the total mass o{

tt

e

mix

components p)us

_bowl

_{and blarie before prrxecding}

with mixing. care

must.be exercised ,o

_{pr"u"n, lois of}

_ti,"'-i*

_;;;g

_mixing

and .subsequenr

handling' At

this

point.

the temperarure

_li-,tl

_{oggr.gote an«l}

_bituminlus

material shall bc wirhin

the

limits

of

the

mixing

_{temPerature established in}

_siction

3.3.

Mi^

;;"

aggregare an¿ biruminous material

rapidly

_{untir thoroughly coated.}

_To

mainrain proper

mixing

_{remperarure, one}

_of

_thc

merhods described rn

Sectioi

Z. t

t

may U"

"r"¿.

Fol'\ox'iag mixing'

c'ure aspftalr cu¿bac-,k rnix¿u,-cs _{in a} ren¿ila¿erd _{oven maintaine.l}

_at

_{approximatcry} I l _'

l"c

(2fffl

_{above the compactio-n}

_temperalre.

curing

i,

to

ur.unt¡nued

in rhe

mixing

bowr

until

the preóalculated.weighi

_of

_S0-percent

solvent

lossir,n,rr"

_i*

_i..n

_{obrained.'l-he}

_mix

_rnay

be

stirred

in a

mixing

_{bowt during}

_crting

_¡o

_u...lerate

the sorvent loss. FIowever, care shorlcr be

exercised _ro prevent loss

of

the.llx,

w"ie¡, ,h"

_;i;;;;;;;;

_{in.rr....rir.}

_intcrvars

_.r

r-5

rniñute'§

initidl¡'

and lcss than

_{l&rninur.inl*.oolr}

_r.,

_{r,t*i";gli.i¿'i¡.}

,,,¡^ _{ar -ro-¡rcrcenr s(''r/v,er¡(}

loss is approached.

C om po c t io n of S p ec im ens:

rT'

Thoroughly

_{clean thc specimen,mold}

assembly and the face

of

the

compacti.n

_{harnmer and r¡e rr}

th,"::Ih:r_r_,

boiring

water, on'the

_tot

_¡rlrt",

_o,

_{in an ovcn, ro a}

ter,pcratt¡re betw,ce n 93.

j

;r.tr 148'gPC (2oo and

t*D.

Place a

pie."

_{or fr'lter paper or paper'rowering cut}

_r.

size r n rhc br.r¡r.nr

of

_{the mold before the mixture is introcluccd. Place the}

erlriic

b;rtch:in rhc _{rn.i<J, spacle rhe}

_mirturr

vigorousrv

_with

_{a heated sparura or rrower}

l-5

ri;¿s

_{;;;; il}

_;;;,ii:,",-

_rntj

_r0

_{ri¡nes over}

_r'e

interior'

Remove the

collar

and smooth _{the surface}

_of

_the

_mix

_{,J¡in o}

_uo*"r

ro a

slightly

r.un¿crr

shape' Temperatures

_of

_{the mixtures immediately}

_prior

to _{cornpaction shall bc}

_witlri¡r

_{rhe linrirs t,l}

thre ctnrrpartirB

_{temlrsr¡t\Ile}

_usfablishctl

irr Scction

_3.j.

RepJace thc

coila¡,

then place

_a

pr19c

of

iltcr

_w¡,cr

lpraprer

tor,cl,»g

cu, ¿{) si¿c on tt>p

o{

thc

mixture _{and place the mold-assembly,on}

the cámpoction pe<.tcstal _{in the molcl holcler. and unless}

othcrwisetPYldtapply50orT5

_úlows

_{with thecompacrion}

io.r"",

wirh

a

fice

fall

rn 4.57 a

mm (

_{l8 in')'}

_Hold

_{the axis}

_of

_the

compaction hammer pcrpen<licurar _{to tlle base of' rhc}

_rn.lrj

assembly _{during compaction' Remove}

the base plate

_a;d

_collar,

_on,l

_*u"rs"

_{and rcas.senrblc}

rrrc

moJd- App'ly

'be sa¡¡e numhe¡

of

compactio¡r bJows

to

the

lacc

of

tlte ¡cver.sed _{.rpccirncn. .,\frcr}

compaction' remove _{the base plate aná place the sample}

extractor on the en¿

of

tlre spccinrcn Place the assembly

with

the eitension

"tltur

rp

in

the

tesing

-".r,i"",

appry pressure ro rhe cr¡r:rr

H'Tnt

of

the load trans[er bar, and force

_th!

specimen

_inL

_{rhe extension}

_collar.

_Lif.r

rhc

coll.r

Irom the specimen'

carefutly

_hT:{"I

_{the specimen to a}

smooth, flar surface anrJ

all.w

_il

_{rr¡ sru¡rri}

overnighr

_¡,

roorD tempe¡at:urr*

Wejgh

_-"rrrr",

_¡¡d

_{¡es¡ üte spcc)rncn.}

Note

6--In

gencral, specimens shall be cooled as specified

_{in section}

_3.5.2.

_whc,

_m.r¿

r,r¡rrj

cooLing ts desired' r'abln' _{fans rnay be use<L Mixtrrres}

(hat rar:k su{trcien(

c,¡hesi.n

(o res,.rl(

i*

(hc

required

cylindricar

shane-3n _{removal fronr the,mord imrnediatery}

nri.,

conrpacl¡on ma_y bc c(x)rc(i

in

the

_{mold in air until}

_{sufficierit cohesion r,o,}

o"u"l,rp"¿

r.,

r"ruri

iJii,.

prup",

_{cyiin<rricar sir.¡rc.} 3.5. 3.5.1

s.5.2.

4.

4.1.

PROCEDURE

Bring

_{the specimens prcpared}

_with

asphalt ccment

or

tar.ro the spccified re _{mperarure b;,} immersÍng

_in

_{the rvater bath 30 to}

+0 _{rninut"s or placing}

_in

_rr,"

_oi"n

_inr

_rwo

_h.urs.

Mainrri.

rhc

bath or ovcn _{temperaru¡e at 60}

+

r"C

(140

_t

_l.s"b

_for

_ih.

_,rpnrr,

_i.."nr

spccimens and

l7.ii

r

L'c

( Loo

t

t _'8"F¡

for

tar specimens.

Bring

_{the speci*re.ns preprred,}

_wirh

asphr.tt curb«c!-. ro r,trc specified temperature _{by placing them}

_inihe

air-barh rn,

o',"ni'nr.u,

_ol,*u

_l¡.urs

_{lr,rainrain lhc :rrr}

bath temperaturc at 25

t

i"c

_1zi

*

_{1.8"F)-Thoroughly clean the}

guide rods _{and rhe insj<je surfaccs}

o[

the test heads

prior

_{to making thc test,'and}

_iu¡r¡ior"

the guide

_;J;

_,"

_{thar the uppcr test} he ac1

slidesfreelYoverthem.Thetesting-h"uat"rnp*rrtureshall

be¡nain(aine<l

_bcrween2l,l

_rolTs.c

TS-2d

T

245-8

4.2.

(70 to-l00PF) _{using a water bath when required.}

Remove the spccimcn

fr.nr

rhe

rv¡ter

bath.

rr'cn.

orairbath'andpfaceinthefowert"g*"nioftñeóreakingt.r..i

Flacetfieuppcrscgmcnrofrfic

breaking head on _{the specimen, and place the complete aisembly}

_in

position on rhe resring

T

machine' _{Place the flowmeter, where used,}

in posiiion over

oneLf

tne gulae ro<ls anri adjusr rhc

flowmeter

_{to zcro}

_while

_{holding the.sleeve}

_ñrmly

against

th;;p;;;

segmenr

ol

thc breakirrg heaci

I-lold the flowmeter sleeve

firmly

_{against the upper segmenr}

_of'the

_{breaking heacJ rvhilc}

the resr

foad is being appfied

Ayp\y

thc lc'ad to the

sPeclTt

by

rrrear\r o( the eonstant ra(e

of

$K\vcrnen{

of

the loa.d.¡rck o<

testing-machine head

of

50.8 mm (2

in.)

per minutc

until

the maximum _{loacl is reache<j and thc} load decreases as indicated by the

dial.

Record the maximu¡n load nored on the tesling machine or

converted from the maximum

_{micromctcr dial}

_{reading. Rclease the}

_flowmeter

sleeve or notc (hc

micromcterdial

reading' where used, the instant the n]aximum loacl begins to <.lecrcase. Nore and rcc¡:aü

_tht

irdicatcd

fl,t¡w

vtlue

_{or equi'ralent uni\s}

in

t're,,rty-tive _{hun<lre<iths r¡(} ¡.

millimeter

(hundredths

_olan

_inch)

_if

_{a micromcter}

_dial

is usecl to rncasurc the lLrrv.

Thc

clapscd rinrc

lor

rlru

test

lrom

removal

of

lhc test specimcn fro¡n

thc

lvatcr bath to thc

nr¡xrlrrrn

loarj

dcrt:r..inarr..

shall not exceed 30 seconds.

Note

7-For

ctlrc specimens, correct the loacl when thickness is orhcr than

ój.5

nrrn

(2rl.

in ) t.,,

rrsing thc proper

multiplying'factor

from Table 2.

{

I 1 l

l__

5.

5.1 . 5.'t .1 .

rr

REPORT

5.1.2.

5.1.3

5.1 .4.

The report shall inclucle the

f<lllowing

infr¡rrnation:

Typc of

samp[e tested (faboratory _{sampfc or pavement corc spccínrcrr),}

Note

8-For

core specimens' the height of cach test specirnen in

nrillimeters (or

rnches)

sh¡li

be reported.

Itteruge

t¡taxitt¡unr ltlad in pounds-forcc

(()(

nr,wtons)<rf a¿ Jca.ct threc spc.r.rrrr('n.r. c(¡¿¡¿.(¡cJ

whcn requircd,

Avcrage

flt¡w value'

in hundredrhs

of

an inch,

twcnty-[vc

huntlrcrlrhs

ol

¡

nril]ir¡ctcr.

_¡l

rhrcr specimens. and

I'est

temperature.

T!'

TS.2d

_-l!P

_T

_245-9

lr

tt rl

I

Table

2-stability

Corretation Rarioso

Approximate Thickness

\tolune

_of

_of

Canv-Specimen,

_Specimen,

lation .l . tdft()Il

cm-

in.

2thto2l3

_rE

2l4 to

Z2s

_l,/,.

21

.O

5.0O 226 to

237

_1,,\

_2g.6

4.jS 138

r.250

_t,tf

_;;

_;;;

z't

toz64

t,i,'

3!

₈

_3.85 265 to

276

_tt/,s

_li.¡

3.sj 21i

toz9g

_|tt,

_¡,4.g

3.33

2\üto3il

_tl,

_N.5

3.Oj 102 ro

jt6

|tt.,

_3g.l

Z.7B I 17 ro

128

lol,,

_39.j

2.S0 129 ro

-']40

l,/,

_4l.l

Z.Z1

l.tl

ro

l5l

l"\/rs

_{42_?}

2.0g .154

ro.tó7

lrt,

_44-i

J.g2

,-)

168 ro

l7e

t,'ti,

_;;;

_t.je

V.;

:r8o (o

192

_t,/,

_47.6

1.6.1 :Jr¡ lo

4t)5

_1"../,0

_4g.2

1.5(¡ .t0ó ro

410

₂

_50.8

L4t 12t

to.l3t

_Z'/,^

_SZ.4

_l.l9

.1'l

l ro.t-11

_2,1,

54.0

132 ¿.14 to

45ó

_zrl,o

_55.6

I .25 qsl

_1t,4-]O

_1,t.

5T.2

_t.l9

47 I lo

4gZ

_Ztt,o

_Sg.7

_t.l¿ 48J to

495

_Z'l*

_60.

_j

¡.09 {96 ro

508

_z'

_tr,:

_6l

_.9

I .04 5Cx) ro

522

_2tlt

_ó3.5

¡.(n l¿3 r/r

_S3f

_{Zol_}

_65.l

S.96 5_16 lo

5¿16

_Ztl,

_6.7

0.93 541 ro

559

_Z,tlr"

_6E.l

0.89 560 ro

573

_Z,t,

_69.9

0.8ó 574 ro

595

_2"tr"

_71.4

o.g3 58ó to

598

_Lrt*

_71.0

o.E t 5g) ro

610

_Ztrt,,

_74,6

0.711

6tlro625

_f

_lí.z

_r)?Á o.76

f

-

;

..T.*¡surcd sDbitity of a spccimo rur,ipri"Juy

o"ñffiilñ*

V-, ,:'l:

_.\r,.. s¡rcc,run cqut,

u..á*""J""üii;l;

il;'61;*

(2rzr-i¡.) specirrrn. \ otuc--th,ctE!e rclationship is based on r spccin*n diarutcr ot 101.6 m (4rn. ).

r

oetaifgcl requircments

_lor

_{tf¡ese síeves are given}

in M

g2,

_wire-cloth

_{sieves for Testing purposes}

"r!"

T$2d

_T

_245-10