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Questions and Answers
Concrete is a composite made of Portland cement, sand, gravel or aggregate, and ______ mixed in right proportions depending on the task
Concrete is a composite made of Portland cement, sand, gravel or aggregate, and ______ mixed in right proportions depending on the task
water
The ingredients are mixed together and poured into ______
The ingredients are mixed together and poured into ______
mould
After a short time it ______ hard.
After a short time it ______ hard.
sets
Concrete solidifies due to a chemical reaction known as ______
Concrete solidifies due to a chemical reaction known as ______
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The hydration needs to be controlled to reduce cracks by ______
The hydration needs to be controlled to reduce cracks by ______
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