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公开(公告)号:US4997484A
公开(公告)日:1991-03-05
申请号:US533361
申请日:1990-06-05
CPC分类号: C04B28/021 , C04B40/0039 , C04B7/243 , Y02P40/145 , Y10S106/01
摘要: A hydraulic cement is formed from a Class C fly ash, an alkali metal activator, and citric acid. Mortar and concrete compositions can be prepared with this hydraulic cement. The cement is particularly useful in producing mortar and concrete compositions that achieve high strengths in a short time, in particular, a mortar having a strength of at least 2500 psi in 24 hours, when cured at room temperature.
摘要翻译: 由C级飞灰,碱金属活化剂和柠檬酸形成水硬性水泥。 可以用这种水硬性水泥制备砂浆和混凝土组合物。 该水泥特别可用于生产在短时间内实现高强度的砂浆和混凝土组合物,特别是在室温下固化时在24小时内具有至少2500psi的强度的砂浆。
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公开(公告)号:US4842649A
公开(公告)日:1989-06-27
申请号:US103755
申请日:1987-10-02
IPC分类号: C04B20060101 , C04B7/00 , C04B7/13 , C04B7/153 , C04B7/19 , C04B7/21 , C04B14/10 , C04B18/08 , C04B18/14 , C04B22/10 , C04B24/06 , C04B28/02 , C04B28/04
CPC分类号: C04B24/26 , C04B28/04 , C04B2111/76 , Y02W30/92 , Y02W30/94 , Y10S106/01
摘要: A blended hydraulic cement composition, curable at low temperatures, including temperatures below the freezing point of water, is composed of portland cement, slag, pozzolans including metakaolin, and admixtures including potassium carbonate and water reducing compositions. The cement is particularly useful in producing concrete compositions which achieve high strength in a brief period of time, and continue curing at ambient temperatures, and temperatures below the freezing point of water.
摘要翻译: 混合水硬性水泥组合物,在低温下可固化,包括低于水凝固点的温度,由波特兰水泥,炉渣,火山灰,包括偏高岭土和包括碳酸钾和减水组合物在内的混合物组成。 该水泥特别可用于生产在短时间内实现高强度的混凝土组合物,并且在环境温度和低于水凝固点的温度下继续固化。
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