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Concrete Curing Temperature Procedures

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Questions and Answers

What should be used to tap molds that are prone to denting or permanent distortion?

A mallet

An open hand (correct)

A handheld float

A tamping rod

What is the maximum size of depressions or projections allowed on the finished surface?

3.3 mm (correct)

5 mm

10 mm

1 mm

How should the top surfaces of cylinders be finished?

By striking them off with a tamping rod or handheld float or trowel (correct)

By applying a thin layer of water

By striking them off with a mallet

By applying a thin layer of stiff portland cement paste

What is the purpose of capping the top surface of freshly made cylinders?

To permit hardening and curing with the specimen Signup and view all the answers

How should beams be finished after consolidation of the concrete?

By using a handheld float or trowel Signup and view all the answers

Why should the specimens be marked to identify them?

To identify the concrete they represent Signup and view all the answers

What should be avoided when marking the specimens?

Using a method that alters the top surface Signup and view all the answers

What is the purpose of section 9.6 of the standard?

To explain the identification method Signup and view all the answers

What type of material is permitted to be used to cap the top surface of freshly made cylinders?

Stiff portland cement paste Signup and view all the answers

What is the primary goal of the finishing process?

To produce a flat, even surface Signup and view all the answers