Which of the following is responsible for the strength and durability of hydrated cement? (a) CH(b)...

Which of the following is responsible for the strength and durability of hydrated cement?

(a) CH(b) Ettringite(c) C-S-H (d) All

Usually pozzolanic cement replacement materials react with:

C3S(b) C-S-H(c) CH(d) C2S

Compaction of concrete results in removal of:

Free water(b) Entrained air(c) Entrapped air(c) All

Ultrasonic pulse velocity test is used for determining …….. of concrete:

Strength(b) Hardness(c) Durability (d) Cracks

Air-entraining agent is used in concrete mainly for:

Corrosion resistance (b) Freeze-thaw resistance (c) Better workability (d) Less Strength

Which type of ASTM cement is suitable for urgent repair work?

Type II(b) Type III(c) Type IV(d) Type V

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Expert Solution

Ally Wells answered 6 months ago

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