FE Civil Engineering Materials Exam Questions and Answers

FE Civil Engineering Materials Exam
Questions and Answers



Cement Paste - Correct Answers -cement + water

Mortar - Correct Answers -cement paste + water

Concrete - Correct Answers -cement, water, sand, and aggregate

Accelerators - Correct Answers -Speed up initial and final set (decrease set time)

Fly ash - Correct Answers -Can be used to improve properties and reduce cement
content. Increases workability and extends the hydration process resulting in higher
strength

Slag cement - Correct Answers -Can be used to improve properties and reduce cement
content. Made from iron blast furnace slag

Silica fume - Correct Answers -Can be used to improve properties and reduce cement
content. Increases strength and durability

Hydration - Correct Answers -The chemical reaction between cement particles and
water

Entrapped voids - Correct Answers -These are trapped air due to PCC handling of the
cement. They decrease strength and increase permeability.

Entrained air - Correct Answers -These are produced by microbubbles and increase the
durability of the cement.

Setting - Correct Answers -This refers to stiffening or change from plastic to solid state
in cement.

Hardening - Correct Answers -This refers to the strengthen gain of the cement paste.

0.4 0.7 - Correct Answers -The typical w:c ratio is between _______ and ______

Water reducers - Correct Answers -Allow for the use of less water while maintaining
workability