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Chap 05 Aggregate

Chap 05 Aggregate - Aggregates for Concrete Videos 1/6...

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Aggregates for Concrete
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Aggregates for Concrete Videos 1/6 Aggregates Grading curves
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Aggregates for Concrete Fine Aggregate Sand and/or crushed stone < 5 mm (0.2 in.) F.A. content usually 35% to 45% by mass or volume of total aggregate
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Aggregates for Concrete Coarse Aggregate Gravel and crushed stone 5 mm (0.2 in.) typically between 9.5 and 37.5 mm (3/8 and 1½ in.)
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Aggregates for Concrete Rock and Mineral Constituents in Aggregates 1. Minerals 2. Igneous rocks 3. Metamorphic rocks 4. Sedimentary rocks
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Aggregates for Concrete Rock and Mineral Constituents in Aggregates Silica Quartz, Opal Silicates Feldspar, Clay Carbonate Calcite, Dolomite 1. Minerals
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Aggregates for Concrete Rock and Mineral Constituents in Aggregates Sulfate Gypsum, Anhydrite Iron sulfide Pyrite, Marcasite Iron oxide Magnetite, Hematite 1. Minerals
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Aggregates for Concrete Rock and Mineral Constituents in Aggregates Granite Syenite Diorite Gabbro Peridotite Pegmatite Volcanic glass Felsite Basalt 2. Igneous rocks
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Aggregates for Concrete Rock and Mineral Constituents in Aggregates Conglomerate Sandstone Claystone, siltstone, argillite, and shale Carbonates Chert 3. Sedimentary rocks
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Aggregates for Concrete Rock and Mineral Constituents in Aggregates Marble Metaquartzite Slate Phyllite Schist 4. Metamorphic rocks Amphibolite Hornfels Gneiss Serpentinite
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Aggregates for Concrete Normal-Weight Aggregate Most common aggregates Sand Gravel Crushed stone ASTM C 33 Produce normal-weight concrete 2200 to 2400 kg/m 3 (140 to 150 lb/ft 3 )
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Aggregates for Concrete Lightweight Aggregate (1) Expanded Shale Clay
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