Question

Part 1

Which of the following may have been in the Quickrete concrete mix #1101?

Group of answer choices

a. aggregate

b. cement

c. None of the answers is correct.

d. sand

e. gelatin

Part 2

What is the purpose of curing?

Group of answer choices

a. so concrete will not harden

b. None of the answers is correct.

c. to allow concrete to dry and crack

d. so concrete will remain moist and flexible

e. to minimize concrete components from bonding

Answer 1

Part 1) Answer C

QUIKRETE Concrete Mix consists of a uniformly blended, properly proportioned mixture of stone, gravel, sand, Portland cement and other ingredients approved for use in concrete.

All the mentioned ingredients (i.e aggregate, sand, cement and gelatin) are used in quickrete.

The correct option should be none of the above ( i.e the correct option should contain aggregate, sand, cement and gelatin)

part 2) Answer B

Objective of Curing:

1. To keep capillary pores saturated, to ensure hydration of cement, to increase durability, impermeability of concrete and reduce the shrinkage

2.Supply additional moisture to accelerate the gain of strength. Gain of strength means the bonding between the concrete components increses