1. Oven dry aggregate passing 12.5mm IS sieve and retained on 10mm IS sieve are selected for the test. 2. The cylindrical measure is filled by the sample aggregates in three layers approximately equal depth and each layer being tamped 25 times by the rounded end of the tamping rod. 3. After tamping the third layer, the top surface is leveled using the tamping rod as straight edge. The test sample thus takes weight as W1 gms. 4. The cup of the test apparatus is placed in position on the base plate, the test sample is transferred into the cylinder in single layer being tamped 25 times and the surface of the aggregate is leveled. 5. The hammer is raised until its lower face is 38mm above the upper surface of the aggregate in the cup, and allowed to fall freely on aggregates for 15 times at an interval of one second. 6. The crushed aggregate is then removed from the cup and the whole of it is sieve on the 2.36mm IS sieve until no further significant amount passes. The fraction passing the sieve is weighed accurate to 0.1gm. and noted as W2 gm.
@hashimkhattak3311
4 жыл бұрын
very informative video i appreciate it love from pakistan
@anandhusathyan1141
4 жыл бұрын
Love you sir, your video is very helpful sir.
@mohdadnansiddiqui4021
6 жыл бұрын
Very well explained thumbs up brother
@prathikjsk6430
5 жыл бұрын
Thank you sir such a nice explanation
@ilyasahmed4773
5 жыл бұрын
Thank you sir explained very nicely
@akshaysehgal8944
6 жыл бұрын
This video is really helpfull....
@Civilophilic
5 жыл бұрын
nyc vedio sir....thank you
@iqbalquadri8117
4 жыл бұрын
Apparatus 1. Weighting Machine 2. Pan 3. Tamping Rod of 10 mm 4. Calibrating Cylinder 5. Impact Mould 6. Sieve of 12 mm 7. Sieve of 10 mm
@thestructureengineer2573
3 жыл бұрын
Best quality video sir.
@SumitRaj-oq1lq
6 жыл бұрын
Sir your video is very good. I learn aggregate crushing , impact value. But i cant find the loss angles abrasion value of coarse aggregate. Plzz suggest
@venkatamanigopal005
6 жыл бұрын
Sumit raj s nice videos sir
@deviprasad6210
5 жыл бұрын
Sir so good explanation upload more videos on ce lab
@mustafeyousuf3228
5 жыл бұрын
Sir thanks aggregate impact value And aggregate crushed value which one the pest practical for road traffic impact
@ayushanbhore8145
5 жыл бұрын
Thank you
@JMI786
6 жыл бұрын
Jazakallah
@krishnakumari4683
5 жыл бұрын
Thank you sir...
@zainullahzain5718
4 жыл бұрын
Bahuth zbrdsth
@aswin1974
2 жыл бұрын
Thank u sir
@bgsohail5744
6 жыл бұрын
thank you sir
@sapankushwaha4069
6 жыл бұрын
Shandar
@bishnurajwar7973
5 жыл бұрын
Very nice sir
@zainullahzain5718
4 жыл бұрын
Because You take the sample from practical field
@civilengineersehbudalam8227
5 жыл бұрын
Good sir
@Rocky.28
6 жыл бұрын
spr
@techsupp2877
5 жыл бұрын
Nice
@nasra_nasra
5 жыл бұрын
What is the relationship between impact value and toughness I mean what will happen to aggregate if impact value is high or low???
@anchal2575
5 жыл бұрын
If impact value is high ....it show the weak toughness for pavement surface....it can't use in construction work!!!
@aayushgupta3291
5 жыл бұрын
Sir,please off the fan for more accurate weight reading
@skudd7979
6 жыл бұрын
Upload los angel test
@sisindriballikurava2477
3 жыл бұрын
Sir it is good but you don't mention the dimensions and hight of the 15 blow's is not mentioned hight don't rept the sir
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