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Aggregate Crushing Value Limits For Concrete

5 aggregate specifications and requirements,904.02 places a restriction for fine aggregate for use in portland cement concrete and mortar. no restrictions are placed on organic impurities in fine aggregate for use in other types of construction. the limitations on the amount of organic impurities allowed in fine aggregates are determined by the test method for organic impurities.2 types of concrete crushers | hxjq,jaw crusher, also known as concrete crusher, is usually used as the primary equipment for concrete crushing. it is also suitable for metallurgy, mining, construction, chemical, water conservancy and railway sectors, and used as a device for fine and medium crushing of ores and rocks with compressive strength below 250 mpa..quality assurance for aggregates,compressive load. the aggregate crushing value should not exceed 45% for aggregate used for concrete other than for wearing surfaces, and 30 % for concrete for wearing surfaces, such as runways, roads for pavements. aggregate impact value gives a relative measure of the resistance.exp 4 aggregate impact value - civil engineers pk,aggregate impact values, (aiv’s), below 10 are regarded as strong, and aiv’s above 35 would normally be regarded as too weak for use in road surfaces. aggregate impact values and aggregate crushing values are often numerically very similar, and indicate similar.

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