Question

3. Answer the following YES/ NO

a. Curing increases the concrete strength

b. Curing can be achieved by adding salts to concrete

c. Contaminated water with dust can be used for curing.

d. Contaminated water with chloride salt can be used for curing.

e. Steam curing can bring higher strength than air curing.

f. In terms of strength there is no difference between long term and short term curing

g. Type 1 cured faster than type III

h. Concrete with pozzolans requires less time for curing.

i. It is good practice to cure concrete below the temperature of 4.4 deg C.

j. Curing efficiency is independent of ambient temperature

Answer 1