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Question
The most commonly used admixture which increases the workability of concrete is called as
The most commonly used admixture which increases the workability of concrete is called as
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Solution
The correct option is A Plasticizers
Admixture are added to concrete mix to modify one or more properties of the concrete. For eg.
(1) Plasticizers:- used to increase workability with decrease in water content therefore increasing compressive strength.
(2) Retarder :- It delays the setting time of cement paste.
(3) Accelerators :- It increases rate of hydration of cement, reduces the setting time eg. CaCl2
(4) Air entraining agents :- It causes air to be entrapped in form of tiny bubbles in mortar or concrete during mixing to increase workability and resistance to freezing and thawing e.g. Aluminium powder.
Admixture are added to concrete mix to modify one or more properties of the concrete. For eg.
(1) Plasticizers:- used to increase workability with decrease in water content therefore increasing compressive strength.
(2) Retarder :- It delays the setting time of cement paste.
(3) Accelerators :- It increases rate of hydration of cement, reduces the setting time eg. CaCl2
(4) Air entraining agents :- It causes air to be entrapped in form of tiny bubbles in mortar or concrete during mixing to increase workability and resistance to freezing and thawing e.g. Aluminium powder.
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