LAB : 5 LAB : Aggregate Impact Test DATE : 18th Test Augus 2016 NO. TITLE LEVEL OF OPENNESS : Level 1 CLASS : EC110 5F GROUP LEADER:Muhammad Akmal B! "ah#a STUDENT NO: 201$8%$858 GROUP MEMBERS NO NAME STUDENT NO. SIGNATURE REMARK 1. Muhammad Akmal B! "ah#a 201$8%$858 M&hammad 'ad (a)* B! I)har 201$$68582 2. 201$$2155$ 3. +k Muhamad (arth B! +k ,usl 4. At*ah -ahrah B!t M&hamad Amra! 201$2$%./$ Adl!a B!t M&hd ,&sla! 201$68601$ 5. +ur! Adl!a ASSESSMENT OF THE LAB ACTIVITIES NO. ELEMENT TO ASSESS STUDENT 1 2 3 4 5 INDIVIDUAL IN-LAB ACTIVITIES 1 +CTALITI" 2 I3C I3CI ILI LI+E +E 4, 4,E33 E33 CE CE3 3A AFET" FET" 3(E (E33 33AFE AFET" ,E7LATI+3 . 9+:LE7E + E+ E+E LAB,AT," GROUP IN-LAB ACTIVITIES $ LEAE,3(I 39ILL 5 CMM+ICATI+ 6 ,7A+I3ATI+;TEAM:,9 LAB REPORT / I+T,CTI+ 8 BA3IC C+CET3 % 3MMA," F ,CE,E3; MET(3 10 A+AL A+AL" "3I3 3I3 A+ I+TE I+TE, ,,E ,ET TATI+ I+ F F A ATA 11 I3C33I+ F ,E3LT 12 C+CL3I+ LECTURER’S SIGNATURE:
REMARKS:
UiTM Pahang THE REPORT MUST BE SUBMITTED 1 WEEK AFTER THE COMPLETION OF THE LAB.
ECG 354 – HIGH HI GHA A! ENGINEERING
INTRODUCTION
I! these la<&rat&r# actvtes stude!ts are re*ured t& set=up a! aggregate tests ! &rder t& evaluate the stre!gth 4t&ugh!ess a!d dura<lt# characterstc &> aggregate? 3tude!ts are e!c&uraged t& devel&p ther crtcal a!al#ss sklls <# a!al#)!g a!d prese!t!g the e@perme!tal results appr&pratel#? OB"ECTIVES
The &<ectves &> the tests are 1. T& determ!e the aggregates mpact value 4AI &> aggregate LEARNING OUTCOMES
At the e!d &> the la<&rat&r# sess&! stude!ts sh&uld
Ide!t># the aggregate mpact value 4stre!gth value &> aggregate &> r&ad st&!e A!al#)e the data c&rrectl# a!d prese!t ! t#pcal >&rmat :&rk ! a gr&up t& pr&duce a tech!cal rep&rt
THEORETICAL BACKROUND
Aggregates pla# a! mp&rta!t r&le ! the desg! a!d c&!struct&! &> hghDa# a!d ar=>eld paveme!ts? The# are als& ma&r part &> rgd 4c&!crete a!d >le@
sa!d gravel crushed aggregate &r &ther materals &> m!eral c&mp&st&!? Aggregates used ! r&ad c&!struct&! sh&uld >c Dheel l&ads? It sh&uld !&t Dear a!d aace treatme!t? I> the aggregate s Deak the sta<lt# &> paveme!t structure s lkel# t& >ected? The test Dll als& determ!e the stre!gth *ualt# &> the aggregates? T&ugh!ess s the pr&pert# &> materal t& resst mpact? ue t& the tra>>c l&ads the r&ad aggregates Is su<ected t& the p&u!d!g act&! &r mpact a!d there s a p&ss<lt# &> aggregate &re racture u!der sudde! mpact a!d m&v!g l&ads?
PROBLEM STATEMENT
aveme!t structure c&mprses &> several la#ers sur>ac!g >c s sur>ac!g la#er? The sur>ac!g la#er c&!ssts &> aggregate a!d <!der? The aggregates must p&ssess ade*uate stre!gth a!d dura<lt# t& Dthsta!d m&v!g a!d statc l&ad? 3&>t aggregates Dll >ects? La<&rat&r# tests are carred &ut t& determ!e the characterstc &> such aggregates? APPARATUS #.
Aggregate Impact Mach!e
##. 3teel c#l!der m&ulds ###. Tamp!g r&d #$. 3eves &> s)es &> 12?5 mm 10?0 mm a!d 2?.6 mm $. La<&rat&r# &ve! $#. Metal tra#s
v? Electr&!c accurac# t& 0?01g v?
F!e hared
PROCEDURES
1? The aggregates sample Das prepared <# >rst sev!g the aggregate a!d the p&rt&! pass!g 1$?0mm Das & 100 t& 110C >&r !&t m&re tha! >&ur h&urs? The aggregate sample prepared Das c&&led t& r&&m temperature pr&r t& test? .? The aggregates Das >lled !t& the smaller steel c#l!der ! three la#ers? Each la#er &> aggregate Das tamped >&r 25 tmes us!g a tamp!g r&d? The tamp!g r&d Das adusted t& >all >reel# >r&m a<&ut 50mm a<&ve the aggregate sur>ace a!d t must &rml# spread &ver? The sur>ace Das levelled Dth the tamp!g r&d as a straght edge t& prepare the su>>ce!t am&u!t &> aggregate &! the t&p la#er? $? The aggregates Das put !t& the <gger m&uld a!d 25 tmes &> tamp!g Das appled >&r each la#er? 5? The c#l!der plus aggregates Das Deghed a!d the Deght data Das rec&rded?
6? The sample Das assemall >reel# &! the aggregates >r&m a >@ed vertcal heght &> .805mm? The sample Das su<ected t& a t&tal &> ma!ual=c&!tr&lled 15 r&m the m&uld a!d the aggregate Das seved thr&ugh 2?.6mm seve &pe!!gs? 8? The aggregate >ract&! pass!g the 2?.6mm test seve Das Deghed? %? The test Das repeated tDce >&r the same aggregate sample?
DATA AC%UISITION
S&'()*
*#+, /
*#+, /
*#+, /
*#+, /
0)#* 6+7
0)#* 8
&++*+&*
&++*+&* &/*
*#+, /
9*/* #*$*
#*$* 6+7
&++*+&*
6+7
9*/* #*$* 6+7
1
2?8/$
.?$/0
0?5%6
0?568
2
2?8/0
.?$/0
0?600
0?562
.
2?8/0
.?$58
0?580
0?5.8
$
2?8/$
.?$/0
0?5%6
0?58$
Average
2?8/2
.?$6/
0?5%.
0?56.
CALCULATION
Aggregate Impact alue G H4Average Deght &> aggregate pass!g seve 2?.6mm ; 4Average Deght &> aggregate &re mpact test J 100 G 40?56.kg;0?5%.kg J 100 G %$?%K
DISCUSSION
T&ugh!ess s the pr&pert# &> materal t& resst mpact? ue t& tra>>c l&ads the r&ad st&!es are su<ected t& the p&u!d!g act&! &r mpact a!d there s p&ss<lt# &> st&!es &re racture u!der
repeated mpacts? Thus a test s desg!ed t& evaluate the t&ugh!ess &> st&!e &r the ressta!ce &> the st&!es t& >racture u!der repeated mpacts ma# &r r&ad st&!es? :e have c&!ducted the aggregate mpact test <# prepar!g >&ur samples &> aggregates? I! &rder t& &!al results &> the aggregate mpact value De t&&k the average value &> the >&ur samples a!d a>ter the calculat&! De have & %$?%K? Based &! the 9,s re*ureme!t the aggregate mpact value sh&uld r&m the test Dth the 9, re*ureme!ts De ca! sa# that ths test s >aled aggregate Dll te!d t& >ll the v&ds a!d preve!t >urther crush!g? The d>>ere!t results &ur samples &> aggregates ma# the err&rs !cludes 1? The dsta!ce &> the pers&! ha!d Dhle tamp!g? Tamp!g la#er als& ca! a>>ect the result >ect the Deght data?
CONCLUSION
As the c&!clus&! the &<ectve &> ths test Dhch s t& determ!e the aggregates mpact value 4AI &> aggregate s acheved? The aggregate mpact value that De have &
d>>ere!t a!d e@ceed the 9,s re*ureme!t? Thus De ca! c&!clude that the sample &> aggregates ma# !&t &r use ! paveme!t c&!struct&!?
REFERENCES
1? https;;DDD?scr
