What should be the 28 days cube strength for M-25 grade
concrete?How it is connected with acceptance criteria of
fck+3 as per IS 456-2000 and why?
- 4 Answers
- 20023 Views
- IVRCL, NCC, Simplex, Tata Steel Limited, I also Faced
- E-Mail Answers
Answer Posted / viki
the 28 days cube strength for M-25 grade
concrete should be 25N/mm2.
acceptance criteria are some conditions defined by IS 456
regarding characteristic strength of concrete when the mix
is prepared on site.strength tests are performed on 4
blocks of concrete.avg strength is calculated.
then fck+3 means that the avg strength of the concrete mix
at the site should be 3N/mm2 greater than fck of mix.
i.e. mean strength= (fck+3)N/mm2
(refer IS456 CLAUSE 16)
| Is This Answer Correct ? | 18 Yes | 7 No |
Post New Answer View All Answers
What do you understand by “preset” during the installation process of bridge bearings?
IS code for Rolling Margin of steel
what is mc arther pile?
What is the worlds largest concrete dam?
01. a. Diagram of a slump cone…………… 1 b. Size of Slump Cone…………… 1 c. Volume of a slump cone by av. Dia method…………… 1 d. Volume of a slump cone by av. area method…………… 1 e. Volume of a slump cone by frustrum method …………… 1 f. Angles of slump cone …………… 1 g. Slump measured by slump cone due to…………… 1 h. Slump does not measured by cylinder / cube due to …………… 1 i) ii) i. Slump cone is to be filled in……………………..Layers.
Water filter calculation formula
how i get all type of short type question answer about civil engg
reinforcement slab, beam and column formulas?
1m square 20mm plastering how much of water need curing work
what does the grad of cement shows (denotes)?
What is the standard volume of pharma in cub ft
Floor to floor high of domestic building is 3m design a quarter turn staircase starting assume taken give a suitable diagram of it?
WHAT WII BE THE WATER ABSORPTION POWER OF WOOD ?
Bitumen grades are 30-40,60-70, 80-100. what is mean by 30- 40
what is polity
