Structural Engineering I MCQ with Answers

Structural Engineering I MCQ with Answers

286) As compared to ordinary portland cement, use of pozzuolanic cement

Answer is:

increases shrinkage

287) Admixtures which cause early setting, and hardening of concrete are called

Answer is:

accelerators

288) The most commonly used admixture which prolongs the setting and hardening time is

Answer is:

gypsum

289) The percentage of voids in cement is approximately

Answer is:

0.4

290) The strength of concrete after one year as compared to 28 days strength is about

Answer is:

20 to 25% more

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