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Assessing Combined Aggregate Gradings—Guide
Description:This guide provides background and examples on the use of practical aggregate grading tools to improve aggregate performance in concrete and allow the paste content of a concrete mixture to be reduced while achieving satisfactory workability and physical properties. The aggregate grading of a concrete mixture impacts the workability, durability, strength, and sustainability of concrete. These grading tools can also be used to proportion concrete mixtures as well as troubleshoot issues associated with mixtures from high to low workability. This guide does not make recommendations, but it does describe and give examples on how to use these tools.
Keywords: aggregate; aggregate grading; coarseness factor chart; gap graded; individual percent retained (IPR) chart; particle shape; Power 45 curve; proportioning aggregate; tarantula curve; well-graded aggregate.
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