New ASTM standard for self-consolidating mixes

A new ASTM International standard covers an easy way for concrete producers to develop a means of quality control when measuring and maintaining the stability of selfconsolidating concrete mixtures.

The new standard is ASTM C1712, Test Method for Rapid Assessment of Static Segregation Resistance of Self-Consolidating Concrete Using Penetration Test. The test method described in ASTM C1712 can be used in either the laboratory or in the field. Results can be obtained within minutes of self-consolidating concrete production or placement, allowing for adjustments to the mix in the lab or on the fly.

Because C1712 is a new standard, the subcommittee is interested in feedback from users so suggested improvements can be discussed and modifications made.

The subcommittee is also planning on developing a proposed new standard for casting self-consolidating concrete specimens without using mechanical assistance or vibration, and it is looking for comments, practical experiences and studies from concrete industry professionals in this area.

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