发明名称 METHOD OF PRODUCING LIGHTWEIGHT FOAMED CONCRETE.
摘要 <p>Lightwt. foamed concrete is produced as follows: (i) a foamed slurry (a) is moulded, (ii) an intermediate half-cured article (20-60cm in thickness) is produced by keeping the increase in temp. inside the mould article 30 deg.C lower than the temp. of (i), (iii) the intermediate article is cured to obtain the foamed concrete. The foamed slurry (a) contains 0.75 pts.wt. water per 1 pt.wt. solid component and is prepd. at 45-80 deg.C. (a) comprises, as solid components, cement (20-40 wt.%), lime (5-15 wt.%), silica (40-60 wt.%) and plaster (3-10 wt.%). At least 50 wt.% of the lime must be slaked (pref. 80-95%). While the intermediate half-cured moulded article, which is 50-130cm thick, is cured, the increase in the thickness of the mould is controlled to 5% or lower. The difference in density between the upper and lower parts of the obtd. foamed concrete is 0.04 g/cm3 or less. The starting material can contain other additives e.g. colouring agent, waterproofing agents, etc.</p>
申请公布号 EP0428756(A1) 申请公布日期 1991.05.29
申请号 EP19900908657 申请日期 1990.06.05
申请人 ASAHI GLASS COMPANY LTD. 发明人 TAKAYA, KEIZOU 4-3-301, MARUBASHI-CHO;TOMIZAWA, AKIRA 860-32, YABE-CHO TOTSUKA-KU;TAHARA, MASAO 775-1, KANEGAYA ASAHI-KU
分类号 C04B40/02 主分类号 C04B40/02
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