ACI Slump Test: ASTM C143 Concrete Slump 2019

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ACI Slump Test: ASTM C143 Concrete Slump 2019

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Күн бұрын

Slump of Hydraulic-Cement Concrete
ACI Technician Workbook CP-1 (14)
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NOTE
There is no requirement to pull a spread test in our demonstration because we are not looking for flow ability - we are performing a "Slump" test and testing for consistency.
We were not out to determine whether or not the concrete needed a flow test; rather, we're simply demonstrating the proper method for performing ASTM C-143 Standard Test Method for Slump of Hydraulic-Cement Concrete.
When shooting multiple takes in a lab setting and continuously washing our equipment, our 5" slump quickly moved to about a 9-1/2".
Please don't post comments about a need to perform a spread test, based on the appearance of the slump.
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Пікірлер: 113

@kanakamaoli9642 3 жыл бұрын

As a retired mixer truck driver I had my share of slump test preformed on my loads in my life time, and proud to say I never was caught with a soft load. Now that the test is over its up to the contractor to ask for and sign my tag for any water to be added, at that point concrete strength is his problem.

@david_onthetrail 3 жыл бұрын

I like being tested, lets me know I am where I thought I was.

@wyattcooper3514 3 жыл бұрын

These videos helped me pass my Performance Exam for ACI Concrete Field Testing Tech Grade 1. Still waiting on my written test results and I feel great about it. (3/18/21)

@sicerts 3 жыл бұрын

Right on Wyatt!!! Well keep us posted, good on you my friend.

@DrPhil714 2 жыл бұрын

Update?

@helgacobian1915 2 жыл бұрын

How did it go?

@curlywalnuts 2 жыл бұрын

Wait yall take tests to do this???

@AutismoLord Жыл бұрын

Update? Been a year

@tittifck 4 жыл бұрын

As soon as the owner walks away, more water is added to the truck for easier pumping.

@enmanueldelgado9244 3 жыл бұрын

Yess hahahah that's right

@SkylinesTheLimit 3 жыл бұрын

this is so true, the inspector that is.

@KiLLJOY1056 3 жыл бұрын

Yup and then you get fired and never work for another concrete company again if im the one that catches you. Youre going let a a whole buildings solid base become dilluted and fall apart on the first pressure because youre too lazy to pump the mix when its correct? Sound like a scumbag. Let it be known, if you get caught doing that, your personal name and company name will be blacklisted on construction sites around the country.

@rich2583 3 жыл бұрын

@@KiLLJOY1056 😂😂😂 Across the country huh?

@patrickcummins79 3 жыл бұрын

Lol.. I've done this job 2.5 weeks, and I've seen this atleast 2 to 3 times already.

@Astra_Life1 Жыл бұрын

Very helpful when i first started in the testing business a year on and I’m still loving it as a job !

@DrPhil714 2 жыл бұрын

Thanks to these videos I passed my test

@BravosReviews 6 ай бұрын

Excellent video, quality, summary, and presenter.

@WarriorsPhoto 4 жыл бұрын

This is good info for me as I learn about construction and building codes.

@mustachcashstash1 4 жыл бұрын

Good info, nice and quick, very clear. Thank you.

@ibrahimalrubaye803 4 жыл бұрын

could you please explain how does this test effect us an what are the reasons behind it

@WarriorsPhoto 4 жыл бұрын

Hey wouldn't concrete sink your ship?

@timothyisham5120 3 жыл бұрын

Nice grout

@leogolive Жыл бұрын

I’m about to start as a construction materials field testing tech.

@robertmccully2792 3 жыл бұрын

I was never on a job that a slump test was not required. And usually that means they also take cylinder samples for PSI test. And if their going to do the last two test, you can bet many soil compaction test were also taken on the fill before we got as far as this video.

@jesusglopez8430 Жыл бұрын

Thanks for sharing.

@gregkbrown 10 ай бұрын

great video guys!!!! correct correct correct

@mikeconroe3328 3 жыл бұрын

Sir, your mixture are collapsed... 😅 or its just education purpose

@janetng4735 Жыл бұрын

I think this slump test for this batch of concrete fails and not up to standard. the drop of concrete to pass a slump test shall be -/+ 25mm?

@jacoboquijada2052 Жыл бұрын

Great video thank´s

@shemawiz00 3 ай бұрын

Very informative

@kamil97sp 4 жыл бұрын

once you remove the mold by raising it gradually, and you measure the distance between the TOP in the MOLD, what is the perfect distance that you should measure? 30cm? 40 cm? please let me, thanks!

@Vargas9215 4 жыл бұрын

Cm? You mean inches? 1 ft = 12 in. Measure to the nearest 1/4 in.

@andrewmccann3964 2 жыл бұрын

depends on what the concrete is being used for

@TheDBZCollector 2 жыл бұрын

we use self consolidating concrete at my job. to bad aci tests aren't determined by what you do at your job that way I wouldn't have to do the roller meter.

@TheDBZCollector 2 жыл бұрын

of course when i did the field tests i waited until like 11am b/c i was nervous and the guy I did the tests for had tee time in a couple of hours so he just had me talk him through the roller meter without actually doing it.

@enmanueldelgado9244 3 жыл бұрын

Tomorrow is my first test alone iam nervous

@ibrahimalrubaye803 4 жыл бұрын

could someone please explain how does this test effect us an what are the reasons behind it

@layneleavitt2537 4 жыл бұрын

As a mixer driver most jobs have a spec that we have to meet. Slump is one of them. Too wet (higher slump) means a weaker product.

@raffiart5121 4 жыл бұрын

Slump is usually a measure of workability of concrete. Workability is the ability to work with concrete such as pouring the concrete. The higher the amount of the water the more workable your concrete but the weaker its strength. So you want to add just the right amount of water to your cement to make sure you can work with it yet it’s strong enough. Usually, that is a 2 to 1 ratio which gives you around 4000 psi or 25 to 30 MPa strength. These are of course all very rough numbers and needs to be tested for concrete.

@brownbagg 3 жыл бұрын

only thing this test does is compare one truck to another load with the same mix, it doesnt tell you water cement ratio, just unformity

@empireaxe8852 2 жыл бұрын

@@layneleavitt2537 high slump does not always mean weak concrete. Can’t tell u how many mix approved mix designs there are that require an 8” slump or higher….because of all the admixtures in the concrete

@layneleavitt2537 2 жыл бұрын

@@empireaxe8852 You can get a higher slump by using different products, its the water/cement ratio that weakens it.

@user-pb1gs9qc7e 2 жыл бұрын

In Russia, a similar method for determining the grade of concrete mobility using a truncated cone.

@LeffHynebridge 2 жыл бұрын

In Russia, concrete test you

@helgacobian1915 2 жыл бұрын

Inteeesting ....Tell me more please.

@neilprete918 Жыл бұрын

Sounds like a spread test. We use that in certain applications too.

@ashokroul4337 3 жыл бұрын

Very good 👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻

@Shivakumar-dq9xl 2 жыл бұрын

why the slump cone is conical ?

@abdullahimtiaz2962 2 жыл бұрын

Hi, kindly tell me what is the procedure of slump test for lightweight concrete.

@victorvillarreal2098 2 жыл бұрын

It's the same

@dioteo1711 2 жыл бұрын

use superplasticizer slump 170-200mm the slump look like collapse slump ?

@elijah4606 Жыл бұрын

A flow table test would be more appropriate if the slump is very high.

@mohammednammorah987 2 жыл бұрын

Is it concrete? Seems like a mortar.

@fadedace1342 2 жыл бұрын

Probably using fly ash

@Razania_Channel 2 ай бұрын

haloo.. nice video

@aalexanderlopez 2 жыл бұрын

Is it just me or is that concrete really slumpy?

@ryancaskey5978 2 жыл бұрын

I’m glad I’m not the only one who uses that word with regards to a high slump

@shiptj01 2 жыл бұрын

It is really slumpy.

@neilprete918 Жыл бұрын

Pretty common to see 8"and more depending on admixtures

@ashamsmc7773 3 жыл бұрын

💯

@Reaper6207 Жыл бұрын

Only jobs these tests are "looked at" are federal jobs.

@neilprete918 Жыл бұрын

Anyone interested in an actual slump test is just giving themselves away as not knowing anything about concrete.

@christophercline8421 6 ай бұрын

It is an outdated test. Slump in the field tells nothing about final strength

@monhi64 Ай бұрын

Damn not in upstate NY. Seems like just about everyone requests slump, air content and cylinders in some capacity. Some maniacs make me test every single truck 20 trucks in a row. I’m sure slump has a use for determining consistency but my main gripe is how unreliable the test is itself. Two people might do the same concrete, do all the steps technically correct and end up with completely different values. Not to mention trucks will fail slump all the time and people just ignore it, don’t give a shit about anything as long as the cylinders pass

@MrSean5123 2 жыл бұрын

Damn that concrete is wet

@walikhan3367 Жыл бұрын

Sir nice pos from Afg

@yecyec3927 Жыл бұрын

LUBE THE CONE.

@rickb4806 Жыл бұрын

7 1/2" slump! Just perfect for driveway pouring Yahoo's

@christophercline8421 6 ай бұрын

That could be the spec for pump mixes or for places where you don't want voids due to rebar.

@Darthsabi Жыл бұрын

Again google is spying on me. No searches and this shows up unexpectedly and relevant to my new field

@fortuner123 3 жыл бұрын

100 mm is good.

@michakepa4018 2 жыл бұрын

i cant believe im studying this shit rip

@stonebloodkiller9756 Ай бұрын

That was like an 8inch slump. Tooooo wet.

@timothyisham5120 3 жыл бұрын

Level within an 8th

@soroshdj 3 жыл бұрын

Very bad slump

@Andrew.Drennan 4 жыл бұрын

where are the gloves?! who wants cement burns??

@Frakkture311 4 жыл бұрын

Cement burns are for pussys who haven't been around cement long enough

@aulajomaa6286 4 жыл бұрын

@@Frakkture311 have you done the ACI code certificate? if so kindly do you have recommendation videos will help passing the test as you the course time so short.

@Frakkture311 4 жыл бұрын

Aula Jomaa I did practice tests on line . And watched as many cvideos on density test and slump as I could and air. Just keep watching and keep memorizing the steps.

@Frakkture311 4 жыл бұрын

Aula Jomaa are you from Canada or states ?

@aulajomaa6286 4 жыл бұрын

@Miles Latham lol I don't know if I ever wrote 16 hours. I booked time for the course and then we had this Coronavirus thing.

@constructionexecution Жыл бұрын

kzfaq.info/get/bejne/p5t3fq93qa-mZqs.html Concrete Slump test | Civil Engineering | Compression Test Concrete Cylinder (Part I)

@maurizioagostino3371 Жыл бұрын

The very bad method of work. Safety first: gloves! Why you dont have the gloves? Where is the plate of base? The cone is dust. This not a good method. Sorry