Answer / sjtbehera

according to IS456-2000 it will be 175kg/sqcm

Answer / mohammed aijaz hussain

Compressive Strength for M20 concrete in 7 days is 175 kg/sq.cm.

Answer / alfonso

compressive strength of concrete for 21 day curing period
is 21 MPa whic is equal to :
= 2,100 N / mm2
= 2.10 KN / mm2

for a 7 day curing period, strength will be 1/3 of the
comp.stregth.

Answer / maverick

It should be atleast 26.60 N/mm2

Answer / rajesh

135 N/mm2

what is the allowable silt content in concrete?

7 Answers  

In case of a beam ,main steel is provided along the longer span because, bending moment is directly proportional to length but why in case of one way slab main steel is provided along shorter span while as bending takes place along longer span?comment

5 Answers   Power Grid,

What Should be the CBR Value for Transported (Selected) Soil.whether it can be 5% or not ?

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What is the difference between Normal Concrete and High density concrete?

2 Answers  

For raft 3000mm thickness with T25150 mesh reinf in top and bottom what diameter can be used for chair to support mesh reinforcement

4 Answers  

i know that, the for calculating material required for concrete volume of concrete is taken 50-54 % more for wet volume. i have querry is that cement and sand volume taken more for making wet volume but in the case of aggregate why it is taken more there is no change in aggregate whether it is dry or wet.???? can you give me answer for this???

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0 Answers  

how to find the percentage for minimum reinforcements as per IS:456 for beam , column, slabs.??

1 Answers   Gammon,

Where do we use singly and doubly reinforced beam in construction purposes

2 Answers   Isha Homes, Simplex, Sterling Wilson,

what is local scouring?

2 Answers  

why we used shahabad stone (ladi) in box type water proofing.what is the main roll of shahabad stone?

2 Answers  

1.How much batten required for 1 sqm Shuttering. 2.how much pipe & clamps required for staging of 100 sqm shuttering at 5.0 m height.

0 Answers   NA,