(a) 15 to 20 %
Strength of concrete also depends on the degree of compaction as improper compaction will lead to the presence of air voids in the concrete which will certainly reduce it’s strength. It has been observed that if there is 5% void, strength of concrete decreases by as much as...
a) Like ties .
The reason of occurrence of torsion in beam is rotation of secondary beam end so it create torsion into primary beam.
Is 456 give guidelines to find equivalent shear which Incorporate torsional moment and if shear strength of concrete is less than 0.6 times shear stress than no...
(d) any one of these.
Aluminium powder is used to produce cellular concrete - A light weight concrete.
By using finely powdered aluminium with the slurry and made to react with calcium hydroxide liberated during the hydration process, large quantity of hydrogen gas is liberated. This hydrogen...
(b) Inversely proportional to the slenderness ratio.
As we know
A short column under the action of an axial load will fail by direct compression before it buckles, but a long column loaded in the same manner will fail by springing suddenly outward laterally (buckling) in a bending mode. The...
Answer is A & B
The water content plays a vital role in shrinkage of concrete because higher the water content higher the voids volume in concrete that Leeds the concrete to undergo for shrink during the process of hydration. Meanwhile the content of sand is also noticeable while designing a...
Ans. is D.
When we control the FM of Fine aggregate it will provide us the flexibility to play with coarse aggregates while all in aggregate grading. Because as we know lesser the surface area of the aggregates lesser the water requirement; so more water will be free to improve the work ability...
Hi,
Could you please suggest what maximum chloride content can be migrated into concrete by logging of sea water into the basements if the chloride content is 1779 mg/ltr in accumulated water.
Hi,
Could you please suggest what maximum chloride content can be migrated into concrete by logging of sea water into the basements if the chloride content is 1779 mg/ltr in accumulated water.
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