ASTM C09 approves roller compacted concrete pavement standard

Sources: ASTM International, West Conshohocken, Pa.; CP staff

ASTM C09 Committee on Concrete and Concrete Aggregates’ new standard—C1800, Test Method for Determining Density of Roller Compacted Concrete Specimens Using the Gyratory Compactor—references a specialized tool to prepare samples and test the density of a material with proven performance characteristics in medium- and heavy duty pavements.

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Proposed ASTM C09 standard tackles mix material incompatibility

Sources: ASTM International, West Conshohocken, Pa.; CP staff

A working document under ASTM Committee C09 on Concrete and Concrete Aggregates—ASTM WK40615, Practice for Mixing and Comparing Performance of Concrete Materials Using Mini-Mix Mortar Mixtures—enables technologists to detect and address incompatibility issues arising in mix design development.

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