Відео

Very Knowledgeable, Thank You Sir...

👍🏽

Informative...

দাদা আমি কী আপনার মোবাইল নং পেতে পারি?

Nice know

Well Explained 👍🏻

Sir please do a video of self compacting concrete and how to cast scc cubes.

❤❤❤❤❤❤❤❤good explanation

I think this difference video 1st in youtube...

Sir your thoughts and ideas for Making quality control engineers more knowledgeable. Your efforts are highly appreciated And keep updating sir❤ Please

Sir this acceptable limit (8 percent) is only for natural sand... Can you please mention M Sand acceptance limit as per IS code... Because now a days we are using M Sand only...

Sir do a Trail mix. For scc concrete with 10mm aggregate. Many people are asking this.

Your thoughts and explanation is great sir. Keep updating more 🙌

Good one sir , keep updating more.🎉🎉

Sir wrong target mean strength formula fck+1.65*standard deviation

Sir, if possible please post Concrete yeild test procedure and acceptance criteria...

Nice sir

In your trial proportion you are taking cement 452 kg and Flyash 158 kg ( 452 kg is the total cementitious material na )

What is the cost of Alum formwork

Very informative I subscribed

Very informative, I subscribed

In general, a very good presentation for learners and young engineers to start with except a few points which may have some contradiction. Let me explain one by one. 1) W/C selection - The general curve given in IS 10262, actually based on normal slump concrete and not for SCC. So calculation of w/c ratio from that curve may be not sufficient. It will always be on the higher side than what is actually needed lower value for SCC. For example, with the same w/c ratio of 0.42, one may not have same strength for normal concrete as well as SCC for M30 grade. M30 SCC will always show lesser strength than normal M30 grade concrete because of higher paste content and in other words comparatively with lower A/C ratio. So in this case some margin is to be considered at least (-) 0.02. say the w/c ratio may be considered as 0.40 in place of 0.42. Now the only cement content will be = 190/0.40 = 475 kg in place of 452 kg. 2ndly, while calculating only cement content through w/c ratio, we need to increase total cementitious fines at least 10% of the cement content as per IS 10262, in case of SCM addition like PFA.That means final cementitious content should be at least = 475*1.10= 522 kg. Therefore , final w/c ratio now will be 0.36 (190/522). It is done because of getting equivalent strength in comparison with only cement mix. Blended mix is little prone to Shrinkage cracks and carbonation of concrete.and hence these two effects are compensated with lowering w/c ratio little lower. Considering all above, we can finalize the cementitious content as follows.... Cement = 340 kg PFA = 182 kg Free water = 190 kg W/C = 0.36. 3rdly, W/P ratio by volume (0.85 to 1.10) may be applicable for lower or moderate strength of concrete but certainly not applicable in high strength Concrete like grade M60 and above. In such cases we already observed that this ratio is always less than 0.85. we generally get this ratio in such grades very close to 0.70. Powder content (400 to 600 kg) also may not be applicable in such high grades where we all saw that it ranges between 650 to 700 kg in such grades. So in SCC design IS 10262 alone is not sufficient to follow. It needs some revisions immediately. Thanks Mr. Kamal to deliver a good presentation on SCC in general.

my interview in next week I want to see all of your videos regarding quality control thank you sir for briefing

Dear sir please provide the Pdf also

Please what's the purpose?

Sir, the cement calculation is wrong, specific gravity you have taken is 2.88 but initially you have corrected it to 3.15.

Nice

Thanks For Shearing...

Make a video about how to develop Filed Quality and Inspection Testing Plan As Per Site Condition, project valuation.

Insightful

hii sir, thx for your information...can i get sample pqp format for more understanding

Informative...

Please make video in detail...

Sir why you saying that "concrete production" terms when you discuss about 1st grade Fly Ash. Concrete Production Terms Denote Concrete Production Process, In This Process We Are Use 2nd Grade Fly Ash, As A Minerals Admixture. I Think Concrete Production Word Only Applicable In 2nd Grade Fly Ash Properties Discussion. 5:14

Informative...👍

Thanks For Shearing...

ভাই তুই আরো শীর্ষে পৌঁছে যা❤

Excellent lecture dear Kamal Dada!!! Highly appreciated.

Nice knowledge

Sir in my site laboratory i have semi digital hydraulic machine not letest digital one, in this machine I didn't get perfectly set rate of loading. This machine have only one hydraulic pressure controler i didn't control rate of load 140 kg/cm² per min,14N/mm² per min or 5.2 kn per sec. If rate of loading is higher how effect in concrete spaceman strength reading.

Please, point 5 isn't clear.

Very helpful points for QA QC engineer

Good One...👍👍👍

Informative video

Sir why didn't use specific mandrel For Bar Bending...???

I think link bar should be placed properly

Good video ❤❤🎉

Sir please make a video on mix design

Hello sir if we have 5,6,7,9,10,11 nos of set to test so how can we make group of 4 non overlapping set on mentioned number of set can you explain it.

Nice explanation sir