Aggregat

Aggregat - Aggregates for Concrete Fine Aggregate s Sand...

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Aggregates for Concrete
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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 Slate Slag ASTM C 330 Produce structural lightweight concrete 1350 to 1850 kg/m 3 (90 to 120 lb/ft 3 )
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Aggregates for Concrete Lightweight Aggregate (2) Pumice Scoria Perlite Vermiculite Diatomite Produce lightweight insulating concrete— 250 to 1450 kg/m 3 (15 to 90 lb/ft 3 )
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Aggregates for Concrete Heavyweight Aggregate Barite Limonite Magnetite Ilmenite Hematite Iron Steel punchings or shot ASTM C 637, C 638 (Radiation Shielding) Produce high-density concrete up to 6400 kg/m 3 (400 lb/ft 3 )
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Concrete Aggregate Characteristics and Tests (1) Characteristic Test Abrasion resistance ASTM C 131 (AASHTO T 96), ASTM C 535, ASTM C 779 Freeze-thaw resistance ASTM C 666 (AASHTO T 161), ASTM C 682, AASHTO T 103 Sulfate resistance ASTM C 88 (AASHTO T 104) Particle shape and surface texture ASTM C 295, ASTM D 3398 Grading ASTM C 117 (AASHTO T 11), ASTM C 136
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This note was uploaded on 12/15/2011 for the course CM 217 taught by Professor Rogers,m during the Fall '08 term at BYU.

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Aggregat - Aggregates for Concrete Fine Aggregate s Sand...

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