Aggregate Impact Test | Aggregate Impact Value | Impact Test on Aggregates by Impact Testing Machine

Detailed Impact Test on Road Aggregates with calculation of Impact value has been shown, also range of aggregate impact value is explained.
Toughness is the property of a material to easiest impact. Due to moving loads the aggregates are subjected to pounding action or impact and there is possibility of stones breaking into smaller pieces. Therefore a test designed to evaluate the toughness of stones i.e., the resistance of the stones to fracture under repeated impacts may be called Impact test on aggregates. The test can also be carried on cylindrical stone specimen known as Page Impact test. The aggregate Impact test has been standardized by Indian Standard Institution. The aggregate impact test is conducted as per IS-2386 Part IV. The aggregate Impact value indicates a relative measure of the resistance of aggregate to a sudden shock or an Impact, which in some aggregates differs from its resistance to a slope compressive load in crushing test. A modified Impact test is also often carried out in the case of soft aggregates to find the wet Impact value after soaking the test sample.
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Aggregate Impact Value Range:
1) Less than 10%---- Exceptionally Strong
2) 10-20%---Strong
3) 20-30%---Satisfactory for road surfacing
4) More than 35%-----Weak for road surfacing
APPARATUS:
1) Impact testing machine.
2) Cylindrical measure.
3) Tamping Rod.
4) IS Sieve.
5) Weighing Scale.
6) Oven.
PROCEDURE:
1) The sample consists of aggregates passing 12.5mm sieve and retained on 10mm seive and dried in an oven 4 hrs at a temperature 1000c to 1100C and cooled.
2) The aggregates are filled in the cylindrical measure in 3 layers and tamped 25 times with rounded end of the tamping rod and the surplus aggregates are struck off using the tamping rod as straight edge
3) The whole of the test sample from the cylinder measure is transferred to the cup and compacted by tamping with 25 strokes and the net weight is determined.
4) The test sample is subjected to a total of 15 blows, each being delivered at an interval of not less than 1 sec and hammer is made to fall at a height of 38 cms.
5) The crushed aggregate is removed and it is sieved on 2.36mm sieve and fraction passing the sieve is weighed.
I thank my students Mohammed Sameer, Manjunath Pujari, Guruprasad Gondi and Siddhaya Bhavimani for their assistance.
Big thanks to my Institution KLS Shri Vasantrao Potdar Polytechnic for permitting to carry out this experiment
#ImpactTestonAggregates #ImpactTest #TestsOnAggregates

[@dadajulius6489]

Professor thank you very much for your simple explanation. It's part of my Masters Degree Project. Greetings from Nigeria.🙏🏾

[@structuralanalysisanddesign]

You are very welcome, i wish you all the best for your Masters, happy new year

[@raphaelcui4199]

that guy rodded 32 times ..

[@yogishyogi3372]

Thanks you Sir From India Banglore

[@kumbajisrihitha9768]

Thank you very much sir we are very much interested to your classes ,its very easy to us to understand ,u explained very properly and clearly sir thank you sir

[@structuralanalysisanddesign]

I am very happy that you are interested to listen to my lectures, channel aim is to provide lectures in easy and understandable manner. Keep watching as I will be coming up with videos on steel structures. Thanks for watching, keep supporting and sharing

[@anilarya2916]

Waaoh What an explanation Really amazing sir Keep going...

[@structuralanalysisanddesign]

Thank you so much Anil, I am glad this video helped you in learning the test, keep watching and sharing, all the best

[@mine.422]

Really amazing explanation sir....I feel very happy after knowing the full details

[@structuralanalysisanddesign]

So nice of you, I am happy this video is useful to you, keep watching and keep sharing, all the best

[@user-bx4im3us7q]

Thank you very much sir

[@structuralanalysisanddesign]

So nice of you, all the very best

[@koustubghasari8695]

Tq for this video sir u give the information about testing machine

[@structuralanalysisanddesign]

i hope it was useful for you

[@mohdarif5745]

Sir bahut acche se apne samjhaya h . Supper 👌👌👌

[@structuralanalysisanddesign]

Thank you, keep supporting

[@PraveenHirekurubar]

Super sir

[@structuralanalysisanddesign]

Thank you, all the best

[@ITI_Abhinav]

Very good explanation

[@structuralanalysisanddesign]

Thanks for liking, keep watching and sharing

[@yashkapadiya6950]

Very easy to understand thx so much sir 🙏🙏🙏

[@rutikbongale440]

Thank you very much 🙏

[@structuralanalysisanddesign]

You're most welcome, all the best, keep watching

[@zaidansari3457]

Thanks Sir itna clear college me bhi nhi samajh ata..

[@structuralanalysisanddesign]

Welcome, keep watching and keep sharing

[@nandinidas5568]

Thank you sir👍

[@structuralanalysisanddesign]

Most welcome, all the best, keep watching and sharing

[@koteswararaovangala6338]

Very nice 🙏🙏🙏 video sir

[@vishnugv866]

Tq sir nice explanation

[@structuralanalysisanddesign]

You're most welcome, keep watching and sharing

[@sanchanasandaruwan5384]

Amazing explanation sir💖💖

[@structuralanalysisanddesign]

Thank you so much, keep supporting

[@aariyan20546]

Best video 📷

[@structuralanalysisanddesign]

Thank you so much, keep watching and sharing

[@NitinKumarTiwari]

Bohat hi sundar

[@fitnessswag8437]

thanks

[@structuralanalysisanddesign]

You're welcome!

[@sabinkatuwal7904]

wow. thank u so much sir :)

[@vasueva1856]

Thanks

[@uniquework8569]

Thank you sir🙂

[@structuralanalysisanddesign]

Most welcome, all the best

[@vishnuprabhas4532]

Thank u so much sir

[@structuralanalysisanddesign]

Most welcome, all the best, keep watching

[@jstorm858]

which standard was use as reference for the procedure?

[@buttler6373]

Sir cam you please post viva questions about this experiments and conclusions

[@sreekarnaikm]

Nice sir 👌👏

[@structuralanalysisanddesign]

Thank you, all the best

[@dharmendranarzary7105]

Thankes sir

[@structuralanalysisanddesign]

Welcome, keep watching and supporting

[@arthpatel204]

Very nice

[@PraveenHirekurubar]

Danyang-Kunshan Grand Bridge

[@Kiran-yb9cx]

Thank u sir

[@structuralanalysisanddesign]

Welcome, all the best, keep watching and sharing

[@sameetvernekar5894]

wow nice machine

[@structuralanalysisanddesign]

Yes mitra :)

[@Abdiannnn]

Tqsm sir

[@structuralanalysisanddesign]

Welcome, all the best, keep watching

[@amunilokesh2568]

Tq bro 👍

[@nandinidas5568]

Danyang- kunshan grand bridge

[@IIITians]

Danyang-Kunshan Grand Bridge

[@Ali0001]

What ll be sieve no. If 20 mm agg is being tested

[@muteenwani1694]

Did not oven dry the sample for 4 hours at 110°c before using it

[@jayaprakashjp9257]

Useful

[@SWARNIKA01]

Is for 20 mm aggregate ?

[@mr.booomer7546]

Sir aggregate sample kg how much?...

[@pothireddy9870]

What happens when concrete free fall is above 1.5mts sir

[@MrPrabodhakumarsahoo]

Segregation happens

[@rllrll9512]

The blows given in that little cup is not needed coz it is inreasonable no use of it,, Also you are creating more weight parameters until W4,, i do not know why you did not weigh the cup to zero first.

[@user-qg1fi6vn1n]

specificaion

[@sanir87]

Tamping rod is wrong..

[@ansiyanavas6003]

🤩👍

[@structuralanalysisanddesign]

Thank you for watching, keep supporting us

[@koustubghasari8695]

1.5 m

[@structuralanalysisanddesign]

ya

[@tajamulnaz6644]

Plz in urdu

[@Rajesh2059sh]

14 blows onnly😂

[@sourabhdubey7958]

Hindi bolne mai sharam ati hai

[@structuralanalysisanddesign]

My target audience is worldwide so channel is in English language

[@carriminate8815]

Sourabh Dubey are you nonsense This is way of talking to our respected teacher Know your culture and don't show arrogent if you aren't interested in English please don't watch video But don't insults rather than appreciation , dude, sir is giving valuable knowledge free of cost and you are rudely giving comments

[@rajeevguntha5177]

thank you so muchh sir

[@vedantjadhav5095]

Thank you Sir

[@structuralanalysisanddesign]

Most welcome

[@dksingh00001]

Thankyou sir

[@ameylokhande219]

Thanks sir 👍

[@structuralanalysisanddesign]

Most welcome, all the best