AS A77-1957被替代
Aggregates for concrete (excluding light-weight aggregates)
出版：Standards Australia
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基本信息
標準編號： AS A77-1957
標準類別：Standard
出版單位：Standards Australia
標準頁數：33
標準簡介
Applies to naturally ocurring sand, gravel and stone, crushed and uncrushed, having a gross apparent specific gravity on a dry basis greater than 2.3, and intended for use as aggregate in the production of concrete for normal constructional purposes.
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