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concrete c35 - 1:1,5:2,5 (cement,sand,aggregate)
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∙ 11y ago
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Why is strength of concrete so important in construction?
The strength of concrete depends on the mix used to make it- ratio of cement, sand, gravel and water. If the mix does not produce a concrete that is strong enough, the concrete will break.
What do you mean by M20 concrete?
In this M refer to Maximum compressive strength and 20 refer that concrete that with stand upto 20KN compressive strength.
What is the strength of concrete after 28 days?
The compressive strength of M25 concrete at 7 days will be between 6-7.5 N/mm2 .
What is ultimate 28 day concrete strength?
The strength of concrete on the 28th day is considered full strength with regard to the engineering calculations for its use. Concrete continues to get hard for 100 years or more, as long as it has water on it now and then. For a 6-sack concrete mix, its 28 day compressive strength should be at 4,000 psi or greater.
What is c35 grade concrete in psi?
It is the bearing capacity in N/mm2 when tested on 21 day on a hydraulic testing m/c When we tested this grade concrete cubes on 28th day the compressive strength value have to come 35 N/mm2.
Why is strength of concrete so important in construction?
The strength of concrete depends on the mix used to make it- ratio of cement, sand, gravel and water. If the mix does not produce a concrete that is strong enough, the concrete will break.
What is concrete mix design?
Its the process of selecting suitable ingredients of concrete and determining their relative amounts with the objective of producing a concrete of the required, strength, durability, and workability as economically as possible, is termed the concrete mix design.
What is mean by m20 of grade concrete?
it is concrete mix which gain strength 20kn/mm2 in 28 day of curing....
What is Most important component to determine the strength of a concrete mix?
The concrete mix should be a 5:1 Cement to water ratio. make sure you mix thoroughly when adding water. Look up "Concrete slump test"
What do you mean by M20 concrete?
In this M refer to Maximum compressive strength and 20 refer that concrete that with stand upto 20KN compressive strength.
How much cube strength required for m20 concrete mix?
does not exceed 30N/mm2
Why does concrete mix with low water cement ratio resulted in hardened concrete having higher strength than those with high water cement ratio?
Why does concrete mix with low water cement ratio resulted in hardened concrete having higher strength than those with high water cement ratio?
What is the strength of concrete after 28 days?
The compressive strength of M25 concrete at 7 days will be between 6-7.5 N/mm2 .
What is ultimate 28 day concrete strength?
The strength of concrete on the 28th day is considered full strength with regard to the engineering calculations for its use. Concrete continues to get hard for 100 years or more, as long as it has water on it now and then. For a 6-sack concrete mix, its 28 day compressive strength should be at 4,000 psi or greater.
What is concrete's setting time?
Dependant on if you have additives with the concrete and how much water is in the mix. In general concrete will achieve 80 - 90 percent strength within in 24 hours
How do check the mixdesign for concrete is correct or not?
for checking the mix design for concrete, we need to initially prepare the mix n take samples n do cube tests to find the compressive strength n find out if desired strength is obtained for 7 days & 28 days strength. if desired strength is not obtained v need to adjust the mix proportions. its actually a trial n error method.
What is the strength of steel reinforced concrete?
The reinforcment will have little or no effect on compressive strength. It will however impact tensile strength. It depends on the concrete mix design and amount of reinforcment, what the tensile strength impacts will be. The question needs to be a lot more detailed to provide a specific answer.
