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Q: Using the largest maximum size of aggregate in concrete reduces
  • A. the cement content
  • B. water requirement
  • C. drying shrinkage
  • D. All option are correct
Correct Answer: Option D - Large size aggregate have the small surface area for a particular volume of aggregate. Thus small amount of cement is needed to cover the specific surface area. Thus the water content is also reduced. And the water content is small in concrete then shrinkage will also reduced.
D. Large size aggregate have the small surface area for a particular volume of aggregate. Thus small amount of cement is needed to cover the specific surface area. Thus the water content is also reduced. And the water content is small in concrete then shrinkage will also reduced.

Explanations:

Large size aggregate have the small surface area for a particular volume of aggregate. Thus small amount of cement is needed to cover the specific surface area. Thus the water content is also reduced. And the water content is small in concrete then shrinkage will also reduced.