The basic purpose of a retarder in concrete is – McqOptions

MCQOPTIONS

1.	The basic purpose of a retarder in concrete is
A.	o increase the initial setting time of cement paste in concrete
B.	o decrease the initial setting time of cement paste in concrete
C.	o render the concrete more water tight
D.	o improve the workability of concrete mix
Answer» B. o decrease the initial setting time of cement paste in concrete

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