Concrete Technology - Concrete Technology objective questions and answers
21. The cement concrete prepared by mixing aluminium in it, is called
A. Air-entertained concrete
B. Cellular concrete
C. Aerated concrete
D. Any of the above
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D. Any of the above
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22. Lightweight concrete is used for
A. Reducing thickness of structures
B. Heat resistance
C. Air-conditioned building
D. Non-load bearing walls
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23. For concreting aggregate should be in
A. Bone dry condition
B. Surface dry condition
C. Moist surface condition
D. Wet condition
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24. Separation of course aggregates from concrete during transportation is
A. Bleeding
B. Creeping
C. Segregation
D. None of the above
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25. Separation of water or water sand cement from a freshly concrete, is known
A. Bleeding
B. Creeping
C. Segregation
D. Flooding
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