Demolition agent for brittle materials
    1.
    发明授权
    Demolition agent for brittle materials 失效
    用于脆性材料的拆除剂

    公开(公告)号:US4617059A

    公开(公告)日:1986-10-14

    申请号:US722197

    申请日:1985-04-11

    申请人: Yukinori Yamazaki

    发明人: Yukinori Yamazaki

    CPC分类号: B01J23/80 C07C29/154

    摘要: A demolition agent for brittle materials which is prepared by pulverizing a quick lime clinker including 0.5 to 10.0% by weight of phosphorus components in terms of P.sub.2 O.sub.5.

    摘要翻译: 一种脆性材料的破坏剂,它是通过粉碎包含0.5至10.0重量%的以P2O5表示的磷成分的生石灰熟料制备的。

    Hydraulic composition and process for producing concrete pile using the
same
    2.
    发明授权
    Hydraulic composition and process for producing concrete pile using the same 失效
    用于生产混凝土桩的液压组成和工艺

    公开(公告)号:US5423634A

    公开(公告)日:1995-06-13

    申请号:US34863

    申请日:1993-03-19

    摘要: A hydraulic composition comprising (a) a cement composition prepared by subjecting size-adjusted cement having its particle size distribution adjusted to have a 50% pass particle diameter of from 2 to 7 .mu.m and a ratio of a 90% pass particle diameter to a 10% pass particle diameter of from 25 to 40 to a water-spraying treatment to increase the loss on ignition thereof by 0.5 to 2.0% by weight and (b) a water reducing agent; and a process for producing a concrete pile by using a mixture of the hydraulic composition and from 18 to 25% by weight of water based on the hydraulic composition. A mortar or concrete mixture of the hydraulic composition exhibits sufficient fluidity and provides a hardened product having a greatly improved compressive strength. The concrete pile produced by using the hydraulic composition has a compressive strength of 800 kgf/cm.sup.2 or higher at one day age.

    摘要翻译: 一种水硬性组合物,其包含(a)水泥组合物,所述水泥组合物通过将经调整的粒度分布调节的尺寸调节的水泥的50%通过粒径为2至7μm,并且将90%通过粒径与 10%通过25至40的粒径进行喷水处理,将其点燃损失增加0.5至2.0重量%,和(b)减水剂; 以及通过使用水硬性组合物的混合物和基于水硬性组合物的18至25重量%的水来生产混凝土桩的方法。 水硬性组合物的砂浆或混凝土混合物表现出足够的流动性并提供具有极大改善的抗压强度的硬化产品。 使用水硬性组合物生产的混凝土桩在一天龄时的抗压强度为800kgf / cm2以上。

    Compositions for low heat cements
    3.
    发明授权
    Compositions for low heat cements 失效
    低热粘结剂组合物

    公开(公告)号:US5547505A

    公开(公告)日:1996-08-20

    申请号:US452644

    申请日:1995-05-25

    IPC分类号: C04B7/345 C04B7/02

    CPC分类号: C04B7/345 C04B2103/0089

    摘要: Compositions for low heat cements developed especially for massive concrete works and which exhibit a compressive strength/heat of hydration ratio of at least 7.0 at the age of 13 weeks. One of two inventions provides a powder prepared by mixing CaO, SiO.sub.2, and Al.sub.2 O.sub.3 materials, melting the mixture, quenching the melt, and grinding the quenched matter, the powder being composed mainly of amorphous substances and chemically having a CaO/SiO.sub.2 (molar ratio) of 0.8-1.5 and an Al.sub.2 O.sub.3 content of no more than 10 wt. %. The other invention provides a mixed powder comprising no less than 70 wt. % of a powder and no more than 30 wt. % of an addition (portland cement or the like), the powder being the same as that of the first invention in both predominance of amorphous substances and CaO/SiO.sub.2 (molar ratio) excepting the Al.sub.2 O.sub.3 content which is less than 12 wt. % in the second invention.

    摘要翻译: 用于低热粘结剂的组合物特别用于大规模混凝土工程,并且在13周龄时具有至少7.0的抗压强度/水合比热。 两种发明之一提供了通过混合CaO,SiO 2和Al 2 O 3材料制备的粉末,熔化混合物,淬火熔体和研磨淬火物质,该粉末主要由无定形物质组成,化学上具有CaO / SiO 2(摩尔比 )为0.8-1.5,Al2O3含量不超过10重量%。 %。 另一发明提供了一种混合粉末,其含有不少于70wt。 %的粉末和不超过30wt。 %的添加剂(波特兰水泥等),除了小于12重量%的Al 2 O 3含量之外,除了无定形物质和CaO / SiO 2(摩尔比)外,粉末与第一发明相同。 %。