Centrifugal compaction forming of secondary product of cement |
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申请号 | JP25682489 | 申请日 | 1989-09-29 | 公开(公告)号 | JPH03122037A | 公开(公告)日 | 1991-05-24 |
申请人 | Chugoku Electric Power Co Inc:The; Chugoku Koatsu Concrete Kogyo Kk; | 发明人 | MASUDA YASUHIKO; TSUNODA HIDEAKI; MIYAKE TAKEO; NAGOSHI SEIJI; | ||||
摘要 | PURPOSE: To obtain an economical centrifugal compaction concrete and mortar by mixing fine grains into a centrifugal compaction concrete and mortar and increasing compression strength and/or decreasing an amount of binding material used. CONSTITUTION: A kneaded material which is a material for subjecting a cement secondary product consisting of concrete and cement to centrifugal compaction forming is prepared. Then inorganic or metallic fine grains having smaller gravity and/or specific gravity than those of belended binding material is blend ed into the kneaded material at a ratio of ≤ 200 kg/m 2 , preferably about 60kg/m 2 . The fine grains include e.g. fine grains of coal lime, blast furnace slag and fumed silica. Thus, compression strength of concrete is increased and/or an amount of binding material used is creased and a more economical centrifu gal compaction concrete and mortar are obtained by blending the above- mentioned fine grains into the centrifugal compaction concrete and mortar. COPYRIGHT: (C)1991,JPO&Japio |
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