The basic purpose of a retarder in concrete is_____________?

A. to increase the initial setting time of cement paste in concrete

B. to decrease the initial setting time of cement paste in concrete

C. to improve the workability of concrete mix

D. to render the concrete more water tight

Found an error? Read our corrections policy and submit a sourced correction below. You can also share a useful explanation in your own words.

Discuss the answer or suggest a sourced correction
Thank you for contributing.
Your comment was submitted and will appear after editorial review.

Your email is used only for moderation and is never displayed. Spam, copied material and fabricated endorsements are rejected.