Aggregates are used extensively in civil construction and the cost of their production is often a significant part of the total project cost. Usually it is necessary to crush or break quarried rock and/or collected boulders to produce aggregate of an acceptable size, shape, and strength. These tasks are carried out by mechanical crushers or by labor-intensive methods using hammers. This memorandum discusses aggregate production with particular reference...
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INFORMACIÓN
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1976/06/30
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Documento de trabajo
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UNN311
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1
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1
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2018/03/03
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Disclosed
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World Bank study of the substitution of labor and equipment in civil construction : aggregate production
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