M-25 grade concrete cub 28 days strenght . 28N/mm2 28N/mm2 29N/mm2 Average strength 28.33N/mm2 Sir, tell it is pass or fail? Sir, The officer of M.C.D says that 29N / mm2 is pass. Because you have passed Job Mix 31N / mm2. While the strength of our cub comes in average 28.33N / mm2 15% (+ -). Sir, I am making a mistake or from the officer. Please tell me something about this topic.
Water ((P/4)+3.0) percent of combined mass of cement and sand, where P is the percentage of water required to produce a paste of standard consistency determined as described in IS : 4031 (Part 4)-1988 Calculation of water : ( P/4+3) x1/100x800 If P is the percentage of water required to produce normal consistency But normal consistency of cement is 29.5 % (29.5/4+3)x1/100x800 = 83 gm
Unable to understand your question , please see whole video with interest upto last , compression testing machine is digital , you can see the the reading in display.
@@HIGHWAYGUIDE sir rate of loading in kn/mm2/min jese ki for concrete 140kg/cm2/ min is 309 kn/mm2/min vese iska Kay ata he pls sir tell me I am very confused
Water ((P/4)+3.0) percent of combined mass of cement and sand, where P is the percentage of water required to produce a paste of standard consistency determined as described in IS : 4031 (Part 4)-1988 Calculation of water : ( P/4+3) x1/100x800 If P is the percentage of water required to produce normal consistency But normal consistency of cement is 29.5 % (29.5/4+3)x1/100x800 = 83 gm
Thank you for providing such a knowledgeable video sir
th-cam.com/video/4lbI-cBhkm8/w-d-xo.html
Video is knowledgeable and music is very nice
Great video without any words.
Thank You
Nice 👍👍👍👍 video🙏🙏🙏🙏 sir ji
It great concept sir......tq so much
Sir, please tell the name of IS code for Compressive strength of cement mortar at 3,7 & 28 days.
sir poking rod se 20 taping nhi krna ha kya as per is
It is an awesome sir....🙏
Keep watching
Excellent video ... thumbs up!
Wonderful video sir
The videos are helpful.
Glad you think so!
The video is good and helpful
Thank you sir good video. I want to lab test related
Most welcome
Why did you not give the rate of loading?
At the end of your testing, the machine was showing 0 kN/sec
How much should we give for 70.6 mm cubes?
th-cam.com/video/zFCbaEI9Ccs/w-d-xo.html
I have one dowt we are taking weight 200 grams each material but how get weights 835 grms each cube
See the full video with interest and do the practical , after that your doubt will be cleared.
@@HIGHWAYGUIDE thanks
sir....3,7 and 28days me 0pc-43,53 grade cement Ka minimum kitna hona chye as per IS or MORTH se plz ...sir kaha diya ha batye or type kr ke batye sir
Explain how u calculated avg strength
Hiiii can u tell what is the rate of loading you used for your specimen
Thank you for your nice video
Apply the load steadily and uniformly, starting from zero at a rate of 35 N/mm2/minute.
@@HIGHWAYGUIDE that means at 7 days it took to break only 1 min. And at 28 days it took to break nearly 1min and 40 sec
I have a dout
When to count the 7 days
Making of cubes or day when put in curing tank
Plzz any one can solve my dout
See whole video with interest and see the last part , you will get your answer
@@shubhvyas8787 time starts from when you put water for mixing..
What is the Concrete mix ratio?
It is not concrete...
It is cement mortar cubes..
Mix ratio is 1:3
Because they have taken 200 grams of cement and 600 grams of standard sand
nice explanation
Keep watching
majo naiyo bhaiya 😅😅😅😅
M-25 grade concrete cub 28 days strenght .
28N/mm2
28N/mm2
29N/mm2
Average strength 28.33N/mm2
Sir, tell it is pass or fail?
Sir,
The officer of M.C.D says that 29N / mm2 is pass. Because you have passed Job Mix 31N / mm2. While the strength of our cub comes in average 28.33N / mm2 15% (+ -). Sir, I am making a mistake or from the officer. Please tell me something about this topic.
As per IS 456 Cube is checked for characteristic strength not for target strength so your officer is wrong.
Good
Any acceptance criteria for cement cube like concrete cube sir
Grade should be satisfied
@@HIGHWAYGUIDE ok sir thanks
You r great sir
SIR HOW TO GET DENSITY
density = mass / volume, for mass weigh the cube after curing and for volume = 7.06 *7.06 *7.06 =351.89cm3
so, for 1st calculation , 835 / 7.06*7.06*7.06 = 2.372 gm/cc
yes...got it.. thank you
Nice sir is tra aur test ka vedoes banaiye aap
Nice very nice
Thanks
Sir ye 29.5 kaha se aya samaj mai nahi aya sir
www.highwayguide.co.in/compressive-strength-test-of-cement-mortar-cube-as-per-is-4031-part-6/
Sir please make a video on soundness of cement by auto cleve method and by le chartleir method
OK
Sir density kaise nikle hai kis formule se
Density =Mass/Volume basic formula
Thanks Eng Sahib
So nice of you
Please explain ( p) of present of water ( 4 and +3 and 800 what ❓
www.highwayguide.co.in/category/cement/
very good
Sir density ...gm/cc...what is cc...
Cm3
83 gram pani kis hisab se liye?
www.highwayguide.co.in/compressive-strength-test-of-cement-mortar-cube-as-per-is-4031-part-6/
@@HIGHWAYGUIDE thanks
Water aad krne ka calucation kis tra hai
Water ((P/4)+3.0) percent of combined mass of cement and sand, where P is the percentage of water required to produce a paste of standard consistency determined as described in IS : 4031 (Part 4)-1988
Calculation of water : ( P/4+3) x1/100x800
If P is the percentage of water required to produce normal consistency
But normal consistency of cement is 29.5 %
(29.5/4+3)x1/100x800 = 83 gm
8.83 N load ana chaiye apne 34 kse likha , explain
Unable to understand your question , please see whole video with interest upto last , compression testing machine is digital , you can see the the reading in display.
Reading is in KN , please note .
Rate of loading
www.highwayguide.co.in/compressive-strength-test-of-cement-mortar-cube-as-per-is-4031-part-6/
Why y take water 83.0 gram
www.highwayguide.co.in/compressive-strength-test-of-cement-mortar-cube-as-per-is-4031-part-6/
Thank you
From where did you get p=29.5
This cement standard consistency determined in our laboratory.
th-cam.com/video/RQKfQcVewuo/w-d-xo.html
Sir ...CBR testing with explanation
th-cam.com/video/0cAE4cSKo_s/w-d-xo.html
What is rate of loading sir in Kn/mm2/min
35N/mm2/min
@@HIGHWAYGUIDE sir rate of loading in kn/mm2/min jese ki for concrete 140kg/cm2/ min is 309 kn/mm2/min vese iska Kay ata he pls sir tell me I am very confused
Thanks sir
Thanks you..
Sir iska calculation to bataiye
Water ((P/4)+3.0) percent of combined mass of cement and sand, where P is the percentage of water required to produce a paste of standard consistency determined as described in IS : 4031 (Part 4)-1988
Calculation of water : ( P/4+3) x1/100x800
If P is the percentage of water required to produce normal consistency
But normal consistency of cement is 29.5 %
(29.5/4+3)x1/100x800 = 83 gm
Combined mass of cement & sand is 800 gram
Thanks Sir
Welcome