Question

On which one of the following factors, does strength of concrete depend primarily ?A. Quality of coarse aggregate B. Quality of fine aggregate C. Fineness of cement D. Water-cement ratio

Answer 1

I am think its D water-cement ratio

Answer 2

Answer:

The answer is  D. Water-cement ratio

Explanation:

• The compressive strength of concrete exists influenced by many parameters such as quality of its raw material such as water, aggregate, etc, water-cement ratio, coarse to fine aggregate ratio, age of concrete, relative humidity, reduction of concrete, temperature and curing of concrete.
• Nevertheless, among all the above-given elements, the water-cement (W/C) ratio plays an important role in the compressive strength of concrete.
• Moreover, Abrams water/cement ratio law declares that the strength of concrete exists primarily dependent upon the water/cement ratio furnished the mix is workable. It states that the strength of a concrete mix exists inversely connected to the mass ratio of water to cement. As the water content increases, the strength of concrete decreases.

Therefore, The answer is  D. Water-cement ratio.

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