CIVILEN 3510 Lecture Notes - Lecture 2: Sintering, Cubic Foot, Canon Eos 30D
2 May 2016
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A granular material such as sand, gravel, crushed stone or iron-blasted furnace slag use with a cementing media to form mortar, concrete, used as a base course, or railroad ballast. Classification of aggregates & types: based on size, fine aggregates, coarse aggregates, types of aggregates, crushed stone, gravel, sand. 0. 006 in (150 micro m) to 3/16 in (4. 75 mm) Size range: size range in concrete construction predominant particles of size smaller than 3. 16 in and larger than 0. 0029 in (75 micro m) Rounded river gravel, crushed stone, and manufactured aggregate. Gravel: natural rounded aggregate larger than in (6. 35 mm) to 1. 5 in: occasionally 2. 5 or 3 in. Crushed gravel: a fine aggregate made by crushing the gravel. According to weight (natural (from rocks) or artificial) i. Heavy weight concretes for protection against nuclear radiation and as bomb shelters, etc. Unit weight: 2400 kg/m3 to 6400 kg/m3. Crushed stone, gravel, and sand for normal weight concretes, asphalt concretes, and roadway sub-base.
