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REPORT OF INVESTIGATIONS PRODUCTION OF LIGHTWEIGHT CONCRETE AGGREGATES FROM CLAYS, SHALES, SLATES, AND OTHER MATERIALS

机译:调查报告从粘土,薄片,板材和其他材料生产轻质混凝土骨料

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The development project has consisted of both field trips and laboratory studies. The field trips were made to locutions where raw materials could be procured for testing. The laboratory experiments have included tests in small electrical and gas-fared furnaces and in gas and oil-fired rotary kilns. Small furnaces were set up at all three stations to evaluate the bloating character¬istics of the various raw materials and to study the mechanism of the expend¬ing phenomenon.

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