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Q: Pick up the correct statement from the following
  • A. Water cement paste hardens due to hydration
  • B. During hardening cement binds the aggregates together
  • C. Cement provided strength, durability and water tightness to the concrete
  • D. All options are correct
Correct Answer: Option D - Hydration– Hydration is the reaction of cement with water to form the binding material. • Water cement paste hardness due to hydration. • During hardening cement binds the aggregate together. • Cement provided strength durability and water tightness to the cement. Factor affecting hydration – (i) Cement type and fineness of cement. (ii) Chemical composition of cement and sulphat content. (iii) Water cement ratio and curing temperature. (iv) Effect of admixture.
D. Hydration– Hydration is the reaction of cement with water to form the binding material. • Water cement paste hardness due to hydration. • During hardening cement binds the aggregate together. • Cement provided strength durability and water tightness to the cement. Factor affecting hydration – (i) Cement type and fineness of cement. (ii) Chemical composition of cement and sulphat content. (iii) Water cement ratio and curing temperature. (iv) Effect of admixture.

Explanations:

Hydration– Hydration is the reaction of cement with water to form the binding material. • Water cement paste hardness due to hydration. • During hardening cement binds the aggregate together. • Cement provided strength durability and water tightness to the cement. Factor affecting hydration – (i) Cement type and fineness of cement. (ii) Chemical composition of cement and sulphat content. (iii) Water cement ratio and curing temperature. (iv) Effect of admixture.