This test method is used to determine conformance with provisions of Specification C33 pertaining to the amount of lightweight material in fine and coarse aggregates. A heavy liquid with a specific gravity of 2.0 is used to separate particles which may be classified as coal or lignite. Heavier liquids are to be used to check the percentages of other lightweight particles such as chert and shale having a specific gravity less than 2.40. The test method is useful in identifying porous aggregate particles in research activities or in petrographic analyses.
KeywordsAggregates - Construction - Density and Relative Density - Installation - Load Factors - Physical Test - Sewers - Sieve Analysis - Trenching
ICS CODE91.100.30 (Concrete and concrete products)
UNSPSC CODE30111800 (Aggregates)
ASTM C123 / C123M-14, Standard Test Method for Lightweight Particles in Aggregate, ASTM International, West Conshohocken, PA, 2014, www.astm.org