when is pozzolana added to cement
a.shrinkage increases
b.shrinkage decreases
Answers
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Answer:
B.shrinkage decreases
Explanation:
As the definition implies, a pozzolan combines with calcium hydroxide in the concrete to form calcium silicate hydrate, similar to that produced by hydration of portland cement. Use of pozzolans may increase or decrease water demand depending on the particle shape, surface texture, and fineness.
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