size of crushed rock quality

  • A review of the quality of crushed rock aggregate based on ...

    A review of the quality of crushed rock aggregate based on NBRO test results N. B. M. Ranatunge S. S. K. Muthurathna Building Materials Research and .

  • Aggregate Testing Standards — EnviroMINE, Inc.

    Dec 01, 2014 · All natural aggregates result from the breakdown of large rock masses. The rock types and the degree of weathering are the major factors that affect the quality of construction aggregate. The rock type determines the hardness, durability, and potential chemical reactivity of the rock when mixed with cement to make concrete.

  • Standard Specification for Aggregate for Single or ...

    Abstract. This specification covers the quality and sizes of crushed stone, crushed slag, crushed expanded shale, crushed expanded clay, crushed expanded slate, and crushed or uncrushed gravel suitable for use as aggregate in single or ple bituminous surface treatments.

  • Aggregates for Concrete - University of Memphis

    Crushed stone is produced by crushing quarry rock, boul-ders, cobbles, or large-size gravel. Crushed air-cooled blast-furnace slag is also used as fine or coarse aggregate. The aggregates are usually washed and graded at the pit or plant. Some variation in the type, quality, cleanli-ness, grading, moisture content, and other properties is expected.