Self-Consolidating Concrete Testing Concepts

This test method shall be used to develop self-consolidating concrete mixtures with segregation not exceeding:

• 5%

• 10%

• 15%

• Specified limits

This test method covers the determination of the ? of self-consolidating concrete by measuring the coarse aggregate content in the top and bottom portions of a cylindrical specimen (or column).

• Aggregate content

• Static segregation

• Viscosity

• Slump flow

When performing Test Method C1610/C1610M, the column mold shall be to consolidate the SCC sample.

• Rodded 25 times

• Tapped on the mold sides with open hand

• Vibrated at 9000 VPM

• Left to stand undisturbed

Is the following statement true or false? This test method is applicable to self-consolidating concrete containing lightweight aggregate.

• True

• False

Self-consolidating concrete is a fluid concrete that can be prone to if not proportioned to be cohesive.

• Segregation
• Bleeding

• Honey combing

• Low viscosity

A sample receptacle shall be large enough to allow remixing of the entire sample and:

• A.Retain a volume of concrete sufficient to fill the column mold

• Adding additional SCC for strength samples

• Sufficient SCC to fill the column mold twice

• The use of a rectangular sieve

Report the mass of coarse aggregate obtained from the top and bottom sections of the column separately to the nearest:

• 0.01 lb [0.005 kg]

• 0.1 lb [0.05 kg]

• 1.0 lb [0.5 kg]

• 10.0 lb [4.5 kg]

Is the following statement true or false? The degree of segregation can indicate if a SCC mixture is suitable for the application.

• Always true

• False

Report the static segregation to the nearest:

• 0.01%

• 0.1%

• 0.5%

• 1.0%

Bring the coarse aggregate obtained from both the top and bottom sections of the column to a surface-dry condition by rolling it in a large absorbent cloth until:

• All visible films of water are removed

• All fine materials are removed

• Most of the water is removed

• All cement has been removed