Cslb Concrete C8 License Practice Test #2 |81 Questions| With Correct Answers.

Which type of Portland cement is used when early strength is expected? {Ans: Type |||}The compressive strength of concrete when treated with a 4" cube is always ____________ than when tested with a 6" cube. {Ans: More}Which of the following is NOT an example of blended cement? {Ans: Combination of silica fume and chlorine fluoride Explanation: Blended cement is a combination of either Type || or Type V cement with any of the SCM}According to Caltrans recommendations, air entraining admixtures are used in concrete in the climate zone _______________. {Ans: ||| Explanation: Area ||| is classified as a severe climate, where freeze-thaw cycles and heavy salting occurs frequently and where chains are used.}How much concrete is required to pour a volume of 15' x 30' x 1.5'? {Ans: 25cu yds}Which of the following is NOT a concrete curing method? {Ans: Water entrapment curing}