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Q: The correct proportion of ingredients of concrete depends upon:
  • A. Bulking of sand.
  • B. Water content.
  • C. Absorption.
  • D. All the above.
Correct Answer: Option D - The increase in the volume of sand due to increase in moisture content is known as bulking of sand. 5-8% of the increase in moisture in the sand can increase the volume of sand up to 20 to 40% Correct proportion of ingredients of concrete depends upon water content, absorption as well as bulking of sand.
D. The increase in the volume of sand due to increase in moisture content is known as bulking of sand. 5-8% of the increase in moisture in the sand can increase the volume of sand up to 20 to 40% Correct proportion of ingredients of concrete depends upon water content, absorption as well as bulking of sand.

Explanations:

The increase in the volume of sand due to increase in moisture content is known as bulking of sand. 5-8% of the increase in moisture in the sand can increase the volume of sand up to 20 to 40% Correct proportion of ingredients of concrete depends upon water content, absorption as well as bulking of sand.