density of coarse aggregate aggregate which occupy nearly 80 to 85 % volume of concrete are most important part of the concrete or rcc. however it is well recognize that physical chemical and thermal properties of aggregate substantially influence the properties and performance of concrete.
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aggregates—sand gravel crushed stone and air-cooled blast-furnace slag—produce freshly mixed normal-weight concrete with a density (unit weight) of 2200 to 2400 kg/m. 3 (140 to 150 lb/ft. 3). aggregates of expanded shale aggregates for concrete. table 5.2. characteristics and tests of aggregate
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for aggregates density is determined by multiplying the relative density (specific gravity) of the aggregate times the density of water. bulk density of aggregate  the bulk density or unit weight of an aggregate is the mass or weight of the aggregate that required to fill a container of a specified unit volume.
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the (150-180) density data comes from a "design and control of concrete mixtures" book and appears to refer to the "particle" density of aggregate. however since the aggregate is made up of particles it is reasonable that the compacted density of the aggregate is between (150-180 lb/ft^3).
construction aggregate calculator. enter the width length thickness and product density and hit the “calculate” button to calculate your estimate. if you do not know the product density use the optional density estimator* or contact a local sales representative.