Method and a composition for preparing concrete elements having
remarkable compressive strength and fracture energy, and elements
obtained thereby
    13.
    发明授权
    Method and a composition for preparing concrete elements having remarkable compressive strength and fracture energy, and elements obtained thereby 失效
    用于制备具有显着的抗压强度和断裂能的混凝土元件的方法和组合物,以及由此获得的元素

    公开(公告)号:US5522926A

    公开(公告)日:1996-06-04

    申请号:US268989

    申请日:1994-06-30

    CPC classification number: C04B28/18 C04B40/02 C04B2201/00

    Abstract: A method and composition for preparing concrete elements comprising the steps of mixing a composition comprising the following components expressed in parts by weight (p):a) 100 p of Portland cement;b) 30 p to 100 p or better 40 p to 70 p of fine sand having a grain size of at least 150 micrometers;c) 10 p to 40 p or better 20 p to 30 p of amorphous silicon having a grain size of less than 0.5 micrometers;d) 20 p to 60 p or better 30 p to 50 p of ground quartz having a grain size of less than 10 micrometers;e) 25 p to 100 p, or better 45 p to 80 p of steel wool;f) a dispersing agent;g) 13 p to 26 p or better 15 p to 22 p of water; and after setting, curing the concrete at a temperature of 250.degree. C. or higher, for a length of time sufficient to transform cement hydration products into crystalline hydrates of the xonotlite type; thus eliminating substantially all of the free water and at least the main part of the adsorbed and chemically bonded water.

    Abstract translation: 一种用于制备混凝土元件的方法和组合物,包括以下步骤:混合包含以重量份(p)表示的以下组分的组合物:a)100p的波特兰水泥; b)30p至100p或更好的40p至70p的具有至少150微米的粒度的细砂; c)10p至40p或更好的20p至30p的晶粒尺寸小于0.5微米的非晶硅; d)20p至60p或更好的30p至50p的粒度小于10微米的基础石英; e)25 p至100 p,或更好的45 p至80 p钢丝绒; f)分散剂; g)13p至26p或更好的15p至22p的水; 并且在凝固之后,在250℃或更高的温度下固化混凝土足够长的时间以将水泥水化产物转化成硬质铁矿型的结晶水合物; 从而消除基本上所有的游离水和吸附和化学键合的水的至少主要部分。

    Particulate rubber included concrete compositions
    19.
    发明授权
    Particulate rubber included concrete compositions 失效
    颗粒状橡胶包括混凝土组成

    公开(公告)号:US5456751A

    公开(公告)日:1995-10-10

    申请号:US338895

    申请日:1994-11-14

    CPC classification number: C04B28/04 C04B18/22 C04B2201/00 Y02W30/92 Y02W30/96

    Abstract: Concrete compositions are provided which contain particulate rubber, preferably recycled rubber from such sources as automobile tires, in amounts between about 0.05 and about 20 percent by weight of the concrete composition. The concrete compositions further contain portland cement, water, and an aggregate material. Additional materials such as superplasticizers and fly ash can also be admixed with the concrete compositions.

    Abstract translation: 提供了混合物组合物,其含有颗粒状橡胶,优选来自诸如汽车轮胎的回收橡胶,其量为混凝土组合物重量的约0.05%至约20%。 混凝土组合物还含有硅酸盐水泥,水和骨料。 另外的材料,如超增塑剂和飞灰也可以与混凝土组合物混合。

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