Slump Test - Fresh Concrete Quality Control Tests pt 1

Рет қаралды 13,506

Tyler Ley

7 жыл бұрын

This video introduces the fresh property tests for concrete and then discusses the slump test.
www.tylerley.com

Пікірлер: 20

@geoffnorrena5707 19 сағат бұрын

You are amazing Tyler. Maybe one day we can compare notes: IE: I can closely predict slump as the concrete comes down the mixer’s chute… we need a 9, but a 10.5 makes placing easier for the pour-crew (especially when there is a lot of reinforcement in the slabs).

@archdynamics 4 жыл бұрын

Excellent series ... clearly explained and immediately useful. Having things written out and illustrated allows for both visual and auditory learning. Well presented!

@mrjaysahli 2 жыл бұрын

Thank you for these helpful videos Ty.

@muskokagrind7396 5 жыл бұрын

Great videos man, thank you for putting these together

@TylerLey 5 жыл бұрын

Thanks so much!

@sighpocket5 5 жыл бұрын

Nice!!!!

@mani771403 4 жыл бұрын

Excellent lectures, however would be better if measurements were in m or cm

@lincolnbyerley6197 Жыл бұрын

Wish you was my teacher

@cabaske 5 жыл бұрын

What do you think of Verifi system from GCP ?

@stevewaclo167 4 жыл бұрын

I have a driveway R&R scheduled and what do you think will be the reaction of the contractor and delivery driver if I pull out a slump test cone and ask them to fill it before unloading into my forms? Seriously.

@khaingkhaing4348 2 жыл бұрын

Can I get the note sir.Thank you for your teaching.

@kiranrampp19 5 жыл бұрын

Slump test is popular in field because of easiness of doing. Actually, the result is depends on several other factors. So, we need more sophisticated tests for instead slump test.

@TylerLey 5 жыл бұрын

Thanks Kiran, It depends on what you want to measure. The slump test can be very helpful and it is cheap and easy. I agree though that sometimes we need to do something more.

@kiranrampp19 5 жыл бұрын

@@TylerLey For example, lifting speed of slump cone will make some influence on the slump value. And then compaction for each layer also makes some difference in value.

@TylerLey 5 жыл бұрын

I agree that there is some difference but it is a very inexpensive test and it is fast. We don't need perfection with concrete. We need things to be good enough. Just because a test has some faults doesn't mean that it shouldn't be used. We should redesign the test to make it easier for people to run it correctly!

@kiranrampp19 5 жыл бұрын

@@TylerLey We should give more awareness about this test to the field people.

@peterjones6945 5 жыл бұрын

@@kiranrampp19 Lack of training and explanation is the main issue. Majority of people I saw doing slump tests had learned it from watching others and asking a few questions but didn't really know what to ask. I repaired broken equipment so didn't need to know but, if I had known this stuff 25~30 yrs ago it would have saved time and possibly led to better structures? The only place I remember seeing a full onsite lab doing all the tests was at second Severn Crossing between England and Wales. They even did core drilling of finished bridge sections for extra tests. It was a great place in the summer but during winter storms, not so much ;) It was scary being a mile out over estuary 200+ft up on bridge deck in 40~60mph winds. Only a couple of people were ever blown off though