| 摘要 |
PROBLEM TO BE SOLVED: To stably produce a weight fine aggregate uniform in quality and to maximally utilize the weight fine aggregate supplied from each production district. SOLUTION: In a method for manufacturing the mixed type weight fine aggregate by mixing at least two raw materials, the production of the mixed type weight fine aggregate is carried out in a manufacturing facility equipped with at least one of an indoor storage space, a storage silo, or a storage tank for receiving at least each raw material, a device for metering each raw material, and a concrete kneading mixer for obtaining the mixed type weight fine aggregate by mixing each raw material. The manufacturing facility is preferably equipped further with a moisture measuring device for measuring water adherent to each raw material. As the manufacturing facility, a facility equipped with a plant for manufacturing ready-mixed concrete can be used. At least two raw materials to be mixed can contain materials in a complemental relationship in any physical property of density, a particle shape, particle size distribution, or solidification easiness. The raw material of easy solidification and the raw material of difficult solidification are mixed together so that the occurrence of solidification can be prevented. COPYRIGHT: (C)2009,JPO&INPIT
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