Concrete Core test at Lab

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Concrete Core test at Lab

Рет қаралды 122,420

R B Singh Civil Engineering Academy

Күн бұрын

Пікірлер: 162

@fajju247 2 жыл бұрын

Without capping to core is wrong procedure ref IS 516 part 4 2018 And correction factor formula is give F=0.11N+ 0.78 Where N is hight / diameter ratio. Graph 📈 is in old IS 516- 1959

@vivekbhoi8549 3 жыл бұрын

Nice video, Very informative and easy understandable 👍

@akhileshverma9823 2 жыл бұрын

aap bahut hi excellent kam kar rahe h sir... 🙏🙏

@rohitgarhwal2759 3 жыл бұрын

Very good vedeo Very informative and helpful

@Fahad-471 2 жыл бұрын

Very knowledgeable video Sir Thank you so much for sharing knowledge

@mdangwal84 2 жыл бұрын

Very informative video sir

@HariKrishnan-wp9zp 11 ай бұрын

You're very good and extrimily best explanation good job thankful to you

@dipupal9215 Жыл бұрын

Nice video sir. Ap bahut acha samjhate h

@mohammadfarhan368 2 жыл бұрын

Good but what if there are steel bars in the core sample? what is the factor (FReinf) for steel bars...Plz

@DevenderSingh-vk6hp 2 жыл бұрын

Strength of individual core shouldn't be less than 75% of fck I.e.18.75 but 2nd reading is 15.78mpa which is unacceptable

@optionhunter9596 Ай бұрын

Yes, But sir jabarajasti pass krne pr tule h😅

@rajasthanengineers3309 Ай бұрын

Or isme cube strength ku nikale apn core ki strength dekh rahe hai na kuki m30 ki core strength 85 percent se kam na ho

@Tukaram26 2 жыл бұрын

Very Nice information 👍👍👍

@Akash24274 3 жыл бұрын

Very nice video sir 😊😊

@user-zi8yn5is5l 3 ай бұрын

Core cutting Kitna meter Mai karna chaiya

@naveensingh9237 2 жыл бұрын

Clear core cutting test

@prakashbarik46 2 жыл бұрын

Thank you Sir for this Video... It's so helpful

@sasankasekhar9735 3 жыл бұрын

you just applied two correction factors..one is L/D & other is equivalent cibe strength...but there is another according to IS code & which is dia correction factor, for this it will be multiplied by 1.03 for dia more than 75 mm

@sasankasekhar9735 3 жыл бұрын

Also there is acceptance for avg. of three cubes 85% of Fck & individual it will be more than 75% of Fck...

@qureshiniyazahmed6492 Жыл бұрын

On which page number, dia. Correction factor is mentioned..plz state.

@tiktikboom4226 Жыл бұрын

Core capping is necessary as per is code.. without capping core likely to fail early..

@himanshupal3731 2 жыл бұрын

Thank you sir itni jankari dene ke liye bahut achh lga pura vedio smjhh aa gaya Sir cub ki strength persentage me kaise calculate krte hai iska ek vedio bna dijiye 🙏

@rbsinghcivilengineeringaca6777 2 жыл бұрын

@shankerkumardas7048 2 жыл бұрын

correction factor=2 than cylinderical strength should be= strength X correction factor i.e- 19.14 x 2

@KumarP-tr8xe 3 жыл бұрын

Excellent video 👍

@sanketjathar9513 2 жыл бұрын

is this ok to have a steel in concrete core while testing and if its ok then what is based used for this by yours side. Please give us a knowledge about in brief.

@vamsireddy6032 2 жыл бұрын

Very good explanation sir

@nageshkallem3611 11 ай бұрын

U can't remove the steel how to strength achieve?

@rajmaheta5330 Жыл бұрын

As per IS code individual sample Test also have minimum 75% of strength that is not matching

@rajkamalyadav6831 Жыл бұрын

Please explain this question???

@samrankhan1120 Жыл бұрын

Sir sulfur capping must into both side...

@deepakkatkar1378 2 жыл бұрын

Nice explanation, superrr

@deepakjain9053 3 жыл бұрын

Goooood important knowledge boss👍👍

@user-zi8yn5is5l 3 ай бұрын

Sir Core cutting Kitna meter Mai karna chaiya

@pavankumaryadav4900 2 жыл бұрын

Thanks sir to share your best knowledge

@AMOLJADHAV-nu1bb 28 күн бұрын

What is the 1.25 ..? And why..? Please explain..

@jocks5176 Жыл бұрын

i see your video and easy understable but you forget about tell individual strenth, i see in your video the 2nd sample is fail 15. something so you forget tell about individual calculation. thankyou sir, Im a QA/Qc Engg.

@Akash24274 3 жыл бұрын

And very good quality of video

@ajaykumarverma7387 2 жыл бұрын

very nice information sir ....

@DharmendraKumar-gq4fc 2 жыл бұрын

Superb sir

@saiprakashraju1253 3 жыл бұрын

what about steel inside, you take still also, so strength had came more....in cube at the time of concrete inside no steel, kindly explain.

@rbsinghcivilengineeringaca6777 3 жыл бұрын

Due to the steel coming inside the core, its strength decreases because it gets a voids of core sample..

@anilsingh8430 3 жыл бұрын

Very nice video

@Blogcompany_New 2 жыл бұрын

Sir MORTH me likha hai ki Dia 150 mm se km nhi hona chahiye section 900 me diya hai MORTH me

@rbsinghcivilengineeringaca6777 2 жыл бұрын

Dear, Minimum diameter of greater of three times the maximum nominal size of the coarse aggregate or 50 mm, Diamond segmented core bit in Hilti , Size - 50 mm to 600 mm dia & length 300 mm to 2000 mm I hope cleared this issue.

@mustakimansari5756 2 жыл бұрын

Very good 👍

@Anandcomdey78 Жыл бұрын

Thanks sir ji

@Here_and_There43 Жыл бұрын

Thank you sir . Want some more video ❤

@sanjeevkumar-kw7sj 3 жыл бұрын

Sar ismein Beria son Kitna achieve karna hai

@hazratbilal7246 Ай бұрын

How you assume the paste rate???

@sachinnanavare6750 3 жыл бұрын

Sir make it video on rebound hammer test Calculation and report

@falkebrothersatulfalke9281 Жыл бұрын

Thanks 😊

@amarpc3532 3 жыл бұрын

Dear sir how plz tell me how to set 140kg/cm 2 after conversation 5.13 in/sec how to do trail error method

@RajeevKumar-cf4xq 7 ай бұрын

Thanks sir

@harishmalladihalli4588 2 жыл бұрын

Sooper info dhanyavaad.

@AbhishekSingh-xy7yv 2 жыл бұрын

Sir but according to one Clause.. individual cylindrical strength should not be less than 0.75 fck. Iska kya matlab hoga?

@rbsinghcivilengineeringaca6777 2 жыл бұрын

Because actual compression strength of concrete core is taken as 0.85 times of specified cylindrical strength. cylindrical strngth is given by 0.85fck As per your question :- 0.75 fck, Fck :- characteristic strength of concrete. Yani ki 0.75 × 25 ( 25 Grade of Concrete) 18.75 N/mm2 is individual strength but average strength not less than 0.85 fck 0.85 × 25 :- 21.25 N/mm2..

@rbsinghcivilengineeringaca6777 2 жыл бұрын

Is per is code guidelines.. 👍👍

@subratkumaranayak6232 Жыл бұрын

Pls sir is code ka nam bata dijiye

@mohdubaish4636 Жыл бұрын

516

@Terminator616 Жыл бұрын

Should we make cube of 9.8 mm side or we compare with 150mm cube?

@kamranullah4780 Жыл бұрын

Dia will be check with vernier caliper

@KISHORKUMAR-mm7bg 3 жыл бұрын

Excellent sir thank you sir

@santoshnamdev1238 Жыл бұрын

Yadi core ke andar steel aa jata h to uska strength kse minus krte h sir

@harvinders18 2 жыл бұрын

Ssa bhaji … kya charge krte ho corecutting test ke

@CivilEngineeringbyAnkur 3 жыл бұрын

Which is code detemine cube strength multiple 5/4change of

@rbsinghcivilengineeringaca6777 3 жыл бұрын

Is code - 516, Cylinder strength by 5/4 , Page no - 12 & table - 5.6.1 A...

@vilaspatil3148 6 ай бұрын

What about steel factory sir

@dineshahlawat5001 3 жыл бұрын

For core test 516 :2017 follow up .

@rbsinghcivilengineeringaca6777 3 жыл бұрын

Yes...

@faultychannel7106 3 жыл бұрын

Location

@faultychannel7106 3 жыл бұрын

Where are you from sir

@mohammedarif2368 2 жыл бұрын

Sir aap ne correction factory of reinforcement kase nikala plz batana

@sankartavar1867 3 жыл бұрын

Good video

@mukeshmostra1206 5 ай бұрын

Nice

@feelthegame5074 Жыл бұрын

Thank you very much sir....

@bijanmaity3459 2 жыл бұрын

Sir this result is not appropriate for acceptation condition, because three cube result not under 15%.

@dineshahlawat5001 3 жыл бұрын

Sir not showing Correct method of testing Core test .. where showing Capping in core for testing for surface in CTM testing machine

@rbsinghcivilengineeringaca6777 3 жыл бұрын

Already surface preparation done before testing..

@pranavnaxane2252 3 жыл бұрын

Sir table mein 4th row mein 2 correction factor kese liye

@rbsinghcivilengineeringaca6777 3 жыл бұрын

Correction factor 2 me 1 lena hai already table me mention hai is code -516 me hai please check karo..

@onlytanmay 2 жыл бұрын

Spreading somewhat little misinformation as per my book , because for L/D ratio of greater than 1.75 we don't have to take correction factor

@vikramdalvi2898 2 жыл бұрын

Steel hai to kaise test ho jaega

@numanakhtar8519 2 жыл бұрын

Sir cylinderical strength 85% hona chahiye na cube strength ka...

@rbsinghcivilengineeringaca6777 2 жыл бұрын

Yes brother.. 👍

@deviddas9511 3 жыл бұрын

Strength ko N/mm² se percentage me kese convert krte hein?

@shaikdasthagiri8517 3 жыл бұрын

What about shotcrete core strength achieved in 28 days core strength?

@rohits1288 Жыл бұрын

Sir where are you from & In which company do you work ?

@saurabhjha4455 3 жыл бұрын

Good

@nemichandbabal.7533 3 жыл бұрын

Sir ye individual strength me fail ho rhe h as per code IS -456

@rbsinghcivilengineeringaca6777 3 жыл бұрын

Sir ji ish condition mein jish cube ka strength kam ya jada aati hai usko cube ko discard kar dete hai aur 2 cube ka average lete Hain..

@rbsinghcivilengineeringaca6777 3 жыл бұрын

2 cube ki average strength not less than 21.25 N/mm2 as per is code 85 % of Grade of concrete..& individual strengths 75%..

@nemichandbabal.7533 3 жыл бұрын

Bahut bahut dhanyawad sir

@shivamupadhyay3043 Жыл бұрын

3:22 RATE OF LOADING140 KG/SQ CM/MIN

@fox6766 3 жыл бұрын

Any translation for this video in English?

@rbsinghcivilengineeringaca6777 3 жыл бұрын

No dear only for Hindi language available at KZfaq channel.. sorry

@fox6766 3 жыл бұрын

@@rbsinghcivilengineeringaca6777 No issue Mr. Singh I will try to understand if I could 😅👍🏻 Thanks

@snarasimha84 3 жыл бұрын

Sir core ka caping karna tha

@SHAHBAZ7466 Жыл бұрын

Caping ni ki es ko

@user-ev2tz2os1y 4 ай бұрын

Correction factor samjh nahi aaya

@AHoney-xl9ux 3 жыл бұрын

Please make video for compressive strength of concrete block.

@mohammedarif2368 2 жыл бұрын

How to tak volume and bulk dentist

@onlytanmay 2 жыл бұрын

πr²h is volume

@onlytanmay 2 жыл бұрын

And ρ=Weight Measured/Volume

@anootalks4077 2 жыл бұрын

Individual cube strength also should not fall below 75% .. but in ur case for 2nd sample it is less than 75% what about it?

@rbsinghcivilengineeringaca6777 2 жыл бұрын

The core individual sample acceptable limits + - 15% of average strength , As per is code - 456 & 516 , but core average strength not less than 85% of Grade of Concrete, individual Strength less than 85 % acceptable but average strength not less than 85%.. as per is code guidelines..

@anootalks4077 2 жыл бұрын

@@rbsinghcivilengineeringaca6777 ok..so individual cube strength should not be less than 15% ? If it's less than 15% and overall average strength is 85% also then we have to reject it?

@rbsinghcivilengineeringaca6777 2 жыл бұрын

@@anootalks4077 Yes , If the strength of any one of the three cubes is much more or less than the average strength, then it is discarded and the strength of the two cubes is check the average strength for , And the strength of individual both cubes is + - 15% of average strength and average strength not less than 85 % of the grade of the Concrete .

@rbsinghcivilengineeringaca6777 2 жыл бұрын

@@anootalks4077 And if the parameters of the cube set do not meet the IS code limits, this Cube set is rejected.

@anootalks4077 2 жыл бұрын

@@rbsinghcivilengineeringaca6777 thanku very much for ur reply

@souravmukherjee1992 2 жыл бұрын

Sir I just a request to you, please detail discuss about 516 and accepance criteria

@rbsinghcivilengineeringaca6777 2 жыл бұрын

Ok, sure brother 👍👍

@pchetan266 3 жыл бұрын

Sir concrete cube 28 days me 100% strength chahiye Lekin core ka 80% kyo

@rbsinghcivilengineeringaca6777 3 жыл бұрын

Kiyu ki cube ko conditions mea aur curing tank mein rakha jata hai jabki Core ko Foundation se nikala jata hai & test Kiya Jata hai ISH liye dear..

@rbsinghcivilengineeringaca6777 3 жыл бұрын

Control conditions me rakha jata hai..

@salimjavid135 3 жыл бұрын

@@rbsinghcivilengineeringaca6777Sir, is there any codal reference for 80% strength (acceptable)

@rbsinghcivilengineeringaca6777 3 жыл бұрын

Kyunki cube control condition mein rakha Kar check karte hain aur core Foundation se nikal Kar Lete hai aur check karte hain, ISH liye as per IS code 80% required hai..

@salimjavid135 3 жыл бұрын

@@rbsinghcivilengineeringaca6777 Got it, it’s clearly mentioned in IS 456 👍

@expose.india1430 2 жыл бұрын

How to convert core average into percentage

@Blogcompany_New 3 жыл бұрын

Strength me variation bhut aa rha hai.. 5% tk allow hai

@mohammedarif2368 2 жыл бұрын

Without salfar clotting

@yashbogawar3557 3 жыл бұрын

Sir, one request to you, Please mention the IS CODE NO. also in video.

@rbsinghcivilengineeringaca6777 3 жыл бұрын

Ok , IS code - 516 for lab testing..

@rbsinghcivilengineeringaca6777 3 жыл бұрын

Dear good morning.. Is code already mention hai video & notebook mein bhi mention..

@yashbogawar3557 3 жыл бұрын

@@rbsinghcivilengineeringaca6777 thank you.

@prabhatmishra7107 2 жыл бұрын

Sir IS 516 me kon sa part me h ....Plz reply

@DharmGoud 2 күн бұрын

Correction factor 2 hona chahiye

@jitendrashah205 5 ай бұрын

Strength calculation video too fast.cant understand properly.

@shivamupadhyay3043 Жыл бұрын

4:02 CORE CAPPING?

@PRAVEENKUMAR-xd6iw Жыл бұрын

👍

@mscivilconstruction2338 2 жыл бұрын

sir agar steel a jaye core main to kya correction factor lagega

@rbsinghcivilengineeringaca6777 2 жыл бұрын

Yes

@mscivilconstruction2338 2 жыл бұрын

konsa factor lagna hai sir as per is code

@miniyoutuber666 Жыл бұрын

sir core test ka details vedio as per is code banyaye please

@nishant.centkanes 3 жыл бұрын

What about variation of + - 15% of individual w.r.t average

@rbsinghcivilengineeringaca6777 3 жыл бұрын

Dear cube ya Core , Variation +-15% hi hai but Haam ne 03 Set core liya tha is liye 3 set core me acceptable limit,, jaise ki aapane note Sheet mein Dekha hoga.. Aur yadi individual ki baat karte Hain to not acceptable..

@rbsinghcivilengineeringaca6777 3 жыл бұрын

Ok dear aur koi question???..

@AHoney-xl9ux 3 жыл бұрын

Dear, very nice info. But what is factor of concrete cube 15×15×15 cm during compressive test. Because ratio 15/15 = 1. Guide at this point of cube test.

@rakeshsahu3778 3 жыл бұрын

Area calculations wrong

@pankajguglani1988 3 жыл бұрын

👍👍🙏🙏🌹🌹

@avadheshsingh8006 3 жыл бұрын

मेरे प्रश्न का जवाब दे ।pls

@rmengineers2351 2 жыл бұрын

where capping

@jawaharp8901 2 жыл бұрын

Core test all test fail next what do demolish element

@rbsinghcivilengineeringaca6777 2 жыл бұрын

1) rebound hammer test 2) ultrasonic pulse velocity test 3) discussion to designer 4) jacketing and extra support provided 4) calculation the load All parameters are not meeted, So demolish the building..

@manishsahu2252 5 ай бұрын

sir as per is code compressive strength should not differ more than +,- 15% but aapke result mai toh 35% tak excceed kar rha hai kaise?

@user-zi8yn5is5l 3 ай бұрын

Sir core cutting Kitna meter Mai karna chaiya

@sreekanthnair50 2 жыл бұрын

Sir ..it's not proper explanation,, app explanation dethatha...beguth perfect tha,understandable, but a tik nahi Correction Factor x 1 ... not get also not get graph . Sir app beguth knowledge diyya pahale ... Mera expectation app pahale zyse explanation Dena, appka steel ka vlog super ... please keep it that way