11.12 Concrete Batching
11.12 Concrete Batching. 11.12.1 Process Description 1-5. Concrete is composed essentially of water cement sand (fine aggregate) and coarse aggregate. Coarse aggregate may consist of gravel crushed stone or iron blast furnace slag. Some specialty aggregate products could be either heavyweight aggregate (of barite magnetite limonite ilmenite iron or steel) or lightweight aggregate (with sintered …
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