maximum permissible clay particles in crushed stone for concrete

  • maximum permissible clay particles in crushed ston

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  • maximum permissible clay particles in crushed stone

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  • Item 421 Hydraulic Cement Concrete.state.tx.us

    Provide coarse aggregate consisting of durable particles of gravel, crushed blast furnace slag, recycled crushed hydraulic cement concrete, crushed stone, or combinations which are free from frozen material and from injurious amounts of salt, alkali, vegetable matter, or other objectionable material, either free or as an adherent coating.

  • ITEM 73 AGGREGATES 73.01 FINE AGGREGATE FOR .

    of hard durable particles or fragments of stone, slag, gravel, or chert, and other finely divided mineral matter. Individual materials shall meet the requirements specified below: 1. Crushed stone shall be free from silt and clay. The coarse aggregate portion of the stone shall have a .

  • Aggregates for Concrete - Portland Cement Association · Web view

    Aggregates must be clean, hard, strong, and durable particles that are largely free of absorbed chemicals, coatings of clay, and other fine materials in amounts that could affect hydration and bond of the cement paste. Fine aggregates generally consist of natural. sand or crushed stone with most particles smaller than 5 mm (0.2 in.).

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  • Different Types & Sizes of Aggregate for Concrete ...

    Aug 11, 2018 · Aggregate may be natural, manufactured or recycled. It includes gravel, crushed stone, sand, slag, recycled concrete and geosynthetic aggregates. For a good concrete mix, aggregates need to be clean, hard, strong particles free of absorbed chemicals or coatings of clay and other fine materials that could cause the deterioration of concrete.

  • Aggregates for Concrete - University of Memphis

    ence the concrete's freshly mixed and hardened proper-ties, mixture proportions, and economy. Fine aggregates (Fig. 5-1) generally consist of natural sand or crushed stone with most particles smaller than 5 mm (0.2 in.). Coarse aggregates (Fig. 5-2) consist of one or a com-CHAPTER 5 Aggregates for Concrete