According to Water-Cement Ratio Law, the strength of workable plastic concrete d

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Question
According to Water-Cement Ratio Law, the strength of workable plastic concrete
Options
A. depends upon the amount of water used in the mix
B. does not depend upon the quality of cement mixed with aggregates
C. does not depend upon the quanity of cement mixed with aggregates
D. all the above.

Correct Answer

all the above.

Concrete Technology problems

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1. Concrete containing
Options
A. silicious aggregates, has higher co-efficient of expansion
B. igneous aggregates, has intermediate coefficient of expansion
C. lime stones, has lowest co-efficient of expansion
D. All the above.

2. While designing an air entrained concrete
Options
A. water cement ratio is reduced
B. proportion of aggregates is reduced
C. an allowance for the entrained air is made
D. strength of the concrete, is reduced
E. all the above.

6. The factor which affects workability, is
Options
A. water content and its temperature
B. shape and size of the aggregates
C. grading and surface textures of the aggregates
D. air entraining agents
E. all the above.

8. Pick up the incorrect statemnt from the following. For performing compressive strength test of cement
Options
A. cement and standard sand mortar are used in the ratio of 1 : 3
B. water is added at the rate of + 3.0 percentage of water where P is the percentage of water for standard consistency
C. A cube mould of 10 cm x 10 cm x 10 cm is used
D. The perpared moulds are kept in a atmosphere of 50% relative humidity
E. The temperature of water in the submerged tank for curing moulds, should be 27� � 2�C.

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