Virtual Labs

Bulking of fine aggregate refers to

a: Expansion of coarse particles Explanation

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b: Decrease in volume due to compaction Explanation

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c: Increase in volume due to absorption of water content Explanation

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d: Change in size and shape of of particles Explanation

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Completely dry sand shows more increase in its volume?

a: True Explanation

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b: False Explanation

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Bulking of sand first increases and then decreases with an increase in water content.

a: True Explanation

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b: False Explanation

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What is the relationship between the bulking and the size of the particle?

a: Directly proportional Explanation

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b: Inversely proportional Explanation

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c: Increases first and then decreases Explanation

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d: None of the above Explanation

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Bulking of sand may change the Water-Cement ratio in concrete.

a: True Explanation

Explanation

b: False Explanation

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Bulking of sand is not dependent on _____

a: Sand texture Explanation

Explanation

b: Particle size Explanation

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c: Volume of sand Explanation

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d: Specific gravity Explanation

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Fine sand exhibits greater bulking compared to coarse sand because

a: Fine sand particles are harder Explanation

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b: Fine sand has larger surface area and retains more water films between particles Explanation

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c: Fine sand is heavier than coarse sand Explanation

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d: Fine sand is less dense than coarse sand Explanation

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When sand becomes completely saturated with water, the bulking of sand will

a: Increase further Explanation

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b: Decrease and approach zero Explanation

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c: Remain constant Explanation

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d: Increase indefinitely Explanation

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The bulking of sand is a critical consideration in concrete design because it affects

a: Only the color of concrete Explanation

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b: The actual quantity of sand needed to maintain the designed mix proportions Explanation

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c: The curing time of concrete Explanation

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d: The cost of cement only Explanation

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Which method is used to measure the bulking of sand in the laboratory?

a: Sieve analysis only Explanation

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b: Comparison of volumes of loose sand and saturated surface dry sand Explanation

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c: Measuring the weight change of sand Explanation

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d: Visual inspection method Explanation

Explanation

Bulking of Fine Aggregate