Answer / rajeev

it is necessary to use minimum cement not only to save the
cost its mainly because of to reduce the chemical reaction
which happens inside the concrete ie to reduce the heat of
hydration which ll cause or develops cracks on the hardened
concrete in the later stages. this may lead to
deterioration of concrete.

Answer / l.nadham

the structure has to satisfy the durability creteria by
complying the min. cement content as per IS Code 456-2000.
since we use to design structure for 100 years.

Answer / rajesh.d.v.s.p.

if we use higher quantity of cement in concrete the heat of hydration will increases. due to cause of hydration cracks will be developed in concrete.the atmosphere moisture will passes through the cracks the steel will rested so this cuse the durability of concrete will reduce.

Answer / manoj patel

If we do not use minimum content of cement say for example
of M20 concrete; then it will not serve the purpose ie to
achieve comp.strength desired/intended for;

Hence min req. is the lower limit of material content.

Like minimum calory req. by our body to sustain life;
regardless of age, type of work, etc.

Answer / guest

For economical results & to save nations natural asset.

As shown in IS 456-2000 minimum cement content is include fly ash?

3 Answers  

I want to calculate the footing 90º L bend as a techincaly

0 Answers   Construction, L&T,

1) what do you mean by rolling margin of steel ? 2)pls. tell the cut length formula of stirrups as per IS codes(take out cut length for a beam of 600*300mm with 40mm cover all sides)? 3)what is the multiplying factor of painting for sand faced plaster? 4)if your footing is of size1.9*1.6m . what quantity of length and width you will excavate means what extra margins you will allow as per IS codes in billing?

1 Answers  

what is slump

5 Answers   JMC Projects, Puravankara,

what will be the quantity of matterial and water for pcc in 1 cubic meter , the ratio is 1:4:8 (cement:sand:aggr) ?

3 Answers  

why the openings of sieves are square io size?

0 Answers  

at the beam-column junction point tell me how much beam bars should pass through column ring ? 3 or 2 or 1 . answer with reason. if it is not happen then what will be he effect ?

1 Answers  

define formwork

1 Answers  

How much percentage of overlap allowed in distribution steel as per IS Code.

2 Answers   Don Consult, India Cements,

why grading of cement is like 33,43,53?why not 25,35,45?

1 Answers   Gokaraju Rangaraju Institute of Engineering and Technology GRIET,

What is the unit weight of steel?

1 Answers  

what is the composition of good brick ?

0 Answers   Exim Knits,