Answer / m jain

20 N/mm2

Answer / shaji

for M20 ( not m20) concrete the strength is M Pa(N/mm2). M30 it is 30 M Pa

Answer / inder

Characteristic strength of M20 grade concrete will be equal
to or more than 20kn/m2 after 28 days of its casting.

Answer / ranjan

M-20 20 Mpa of 28 days compressive strength

Answer / ravi

20 N/mm2
of 28 days compressive strength

Answer / naseem khan

M-20 20 Mpa
can anyone tell me what is MPa in this above formulla

what does 1 in 30 or 1 in 40 mean when constructing camber in roads.

5 Answers   Simplex,

what pressure the NP2 class RCC pipe can sustain?

0 Answers  

Define What is made from large rocks, which protects the base of cliffs?

0 Answers  

What is bending moment?

1 Answers  

how to consider the lap length of a bar in IS code and specify the code book name and clause& page number?

2 Answers  

Mix proportion of M30 grade?????????

4 Answers  

how to calculate Tile skirting

5 Answers   JMC Projects,

As per Kandal suggestions, we have implemented rolling starts on 140 (+/- 5) degrees and we kept 3 rollars to complete the rolling before falling 125 degrees and the Aggregate AIV is below 22. But When the DBM bed is being rolled 3rd high viabration, (Before 1 plain & low ,2 high Viabrations), the aggregate is getting sharp edge agg. projections are damaged. As the literature is said that, the VG-30 Grade having better control the temp. susceptibility than Penetration grade. if so we could not get this problem at site. But we are facing on site. let me know.

0 Answers  

1 what is the nature of your job? 2 what major product or service does your company offer? 3 hoiw does the knoledge of chemistry hels in your job?

2 Answers  

HOW what is the procedure for using m 50 concrete in columns & M 30 concrete in beams & slabs .

0 Answers   DRDO,

10 sq m ,25mm thickness 1:2:4 cement and concrete floor how much cement required?       2 , if truck has a capcacity of 8 ton then how many bricks we can put on it ?

1 Answers  

1) why bent up are provided at l/4 or l/5 distance not at l/8or l/10? 2) why extras are provided in beams at top and why upto 0.3l distance max.? 3) why chairs are provided in two way slab?

1 Answers   L&T,