pavement design report (modul 7)

7/23/2019 Pavement Design Report (Modul 7)

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PAVEMENT DESIGN EXAMINATION REPORT

MODUL 7

GROUP 1A

Daniel Wibisana 1306437076

Sabrina Nurul Hidayah 1306437145

Raihan Alisha Nabila 1306437126

Rafitya Rahisa 1306437063

Jean-baptiste a!ies 15067"65#0

ate $f %&peri'ent ( N$!e'ber 1) 2015

Na'e $f Assistant ( Alfisahr *erdian

ate $f Appr$!al (

S+$re (

Assistant Si,nature (

LAORATORIUM O! STRU"TURE AND MATERIAL

DEPARTMENT O! "IVIL ENGINEERING

ENGINEERING !A"ULT#

UNIVERSITAS INDONESIA

DEPO$ %01&


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'(07 SPE"I!I" GRAVIT# O! )ARD ITUMEN AND TAR

*PA ( 0307(76+

*AAS)TO T ( %%,(7-+

*ASTM D ( 70(03+

I. Ob/ei2ehis e&a'inati$n is intended t$ deter'ine the spe+ifi+ ,ra!ity $f hard bitu'en and tar by

py+n$'eter. /itu'en $r tar density is the rati$ beteen ei,ht $f hard bitu'en $r tar and

distilled ater ith the sa'e +$ntent at a spe+ifi+ te'perature.

II. Aaa5s

a. he 'arinade bath euipped ith a te'perature +$ntr$l a++ura+y $f 0.1 .

b. y+n$'eter) a++$rdin, pi+ture 13

+. her'$'eter) a++$rdin, t$ the pi+ture 14

d. istilled ater 1)000 +'3

e. lass !essel

III. Maeial

Heat e&a'ple hard bitu'en $r tar a'$unt $f 50 ,ra's until it be+$'es liuid and stir t$

pre!ent l$+al ar'in,.

IV. Pe5e

a. n preparati$n day) +lean and dry the py+n$'eter) then 'easure the ei,ht ith the

+$!er $n A8b. After that) fill the py+n$'eter ith distilled ater and 'easure the ei,ht $f the

py+n$'eter ith the ater and +$!er /8+. %'pty and +lean the py+n$'eter) 'a9e sure it is dry and n$ ater is in the

py+n$'eter.

d. hen p$ur the tar sa'ple that has been heated:'elted $n a st$!e int$ the dry

py+n$'eter) fill ; $f the py+n$'eter ith the tar.

e.


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SG=(CA)

(BA)(DC)

=here( A > ei,ht $f py+n$'eter ith +$!er8 ,ra'8

/ > ei,ht $f py+n$'eter filled ith ater ,ra'8 > ei,ht $f py+n$'eter +$ntains asphalt ,ra'8 > ei,ht $f py+n$'eter +$ntainin, bitu'en and ater ,ra'8

Result( A > 24.0#3 ,

/ > 46.#26 ,

> 3".046 ,

> 47.314 ,

SG= (39.04624.083 )(46.82624.083 )(47.31439.046 )

=1.0337

VI. Anal8sis

i. E9ei:en Anal8sis

he purp$se $f this e&peri'ent is t$ find the spe+ifi+ ,ra!ity $f tar by usin, a

py+n$'eter. ?n $ther $rds) it is the rati$ beteen the density $f asphalt and ater. ?t

is si'ply deter'inin, the rati$ beteen ei,ht $f tar and the ei,ht $f distilled ater

ith the sa'e +$ntent at a spe+ifi+ te'perature. /ef$re the e&peri'ent be,ins)

preparati$n has t$ be d$ne $n the pre!i$us day. he 'aterial used in this e&peri'ent

is tar $r asphalt and distilled ater. Asphalt is heated $n a st$!e until it is 'elted and

ta9es $n a liuid f$r'. he reas$n this is d$ne is s$ that tar +an be shaped easily and

p$ured int$ the py+n$'eter. =hen heatin, the asphalt sa'ple) 'a9e sure t$ stir the

sa'ple s$ that air is n$t trapped ithin the heated sa'ple. he sa'ple +ann$t +$ntain

air !$ids be+ause it ill affe+t the +al+ulati$n $f the tar spe+ifi+ ,ra!ity. he ei,ht $f

the py+n$'eter is first 'easured and re+$rded. After that) the py+n$'eter is filled

ith ater until it is full and the ei,ht $f py+n$'eter is 'easured as the ei,ht $f

py+n$'eter ith ater. =hen the tar is 'elted) it is then p$ured int$ the py+n$'eter

until ; the hei,ht $f the py+n$'eter and then the ei,ht is then 'easured a,ain. his

ei,ht is re+$rded as the ei,ht $f py+n$'eter +$ntainin, asphalt. he asphalt is


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9ept in the py+n$'eter ith$ut +l$sin, the lid:+$!er. he e&peri'ent is +$ntinued $n

the ne&t day s$ that there is en$u,h ti'e f$r the asphalt in the py+n$'eter t$ +$$l. n

the ne&t day) distilled ater is p$ured int$ the py+n$'eter +$ntainin, asphalt until it

is full. he ei,ht is re+$rded a,ain as the ei,ht $f py+n$'eter +$ntainin, asphalt

and ater. @a9e sure that there is n$ ater $n the surfa+e $f the py+n$'eter be+ause

it ill affe+t the ei,ht 'easure'ent. After all the data are +$lle+ted) the +al+ulati$n

$f spe+ifi+ ,ra!ity $f asphalt +an be deter'ined usin, the f$r'ula 'enti$ned ab$!e.

ii. Res5l Anal8sis

sin, the f$r'ula 'enti$ned earlier) the spe+ifi+ ,ra!ity $f tar based $n this

e&peri'ent is deter'ined t$ be 1.0337. Spe+ifi+ ,ra!ity !aries ith te'perature) s$ it

is i'p$rtant t$ 9eep the distilled ater and asphalt at the sa'e te'perature. ?n this

e&peri'ent) the te'perature used is the r$$' te'perature) hi+h is 25B elsius.he typi+al !alue $f asphalt spe+ifi+ ,ra!ity is 1.03) s$ +$'pared t$ $ur result) this

e&peri'ent is ab$ut a++urate.

iii. E Anal8sis

urin, this test) there +$uld be s$'e err$rs that happened durin, the pr$+edure $f the

test and 'easure'ents. here +$uld be err$rs +aused by the t$$ls $r euip'ent and

students in lab$rat$ry. An e&a'ple $f err$r +aused by the students +$uld be ina++urate

readin,s $f the ei,ht s+ale) hi+h $uld then affe+t the +al+ulati$n. An$ther

p$ssible hu'an err$r +$uld happen hen heatin, the asphalt sa'ple. he sa'ple

'i,ht n$t be heat) stirred and pla+e in the py+n$'eter pr$perly) s$ the asphalt sa'ple

+$ntains air !$ids. here +$uld als$ be a paralla& err$r durin, this test that resulted

fr$' a sudden +han,e in the r$$' te'perature. $ deter'ine the rati$ beteen the

ei,ht $f asphalt and ater) the te'perature $f b$th substan+es 'ust re'ain the

sa'e. ne last p$ssible err$r +$uld $++ur t$ the euip'ent in the lab$rat$ry. he

ei,ht s+ale +$uld +ause an err$r t$ the +al+ulati$n if it is n$t a++urate.

VII. "nl5sin

@aterials $r substan+es ith a spe+ifi+ ,ra!ity $f 1 are neutrally bu$yant in ater. his

e&peri'ent sh$ that the spe+ifi+ ,ra!ity $f asphalt is '$re than $ne) hi+h 'eans that

asphalt) is denser that the referen+e substan+e) distilled ater. /e+ause asphalt is denser than

ater) it ill sin9 in it re,ardless $f the surfa+e. /e+ause the spe+ifi+ ,ra!ity $f asphalt


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binders +han,e ith te'perature) spe+ifi+ ,ra!ity tests are useful in 'a9in, !$lu'e

+$rre+ti$ns based $n te'perature.

VIII. Re;eene

http(::.pa!e'entintera+ti!e.$r,:arti+le:the$reti+al-'a&i'u'-spe+ifi+-,ra!ity:

Buku Panduan Praktikum, e'eri9saan /ahan er9erasan Jalan


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IX. Aa

pavement design report (modul 7)

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