Self-repairing, reinforced matrix materials
    1.
    发明授权
    Self-repairing, reinforced matrix materials 失效
    自修,增强基体材料

    公开(公告)号:US06261360B1

    公开(公告)日:2001-07-17

    申请号:US09447894

    申请日:1999-11-23

    申请人: Carolyn M. Dry

    发明人: Carolyn M. Dry

    IPC分类号: C04B1438

    摘要: Self-repairing, fiber reinforced matrix materials include a matrix material including inorganic as well as organic matrices. Disposed within the matrix are hollow fibers having a selectively releasable modifying agent contained therein. The hollow fibers may be inorganic or organic and of any desired length, wall thickness or cross-sectional configuration. The modifying agent is selected from materials capable of beneficially modifying the matrix fiber composite after curing. The modifying agents are selectively released into the surrounding matrix in use in response to a predetermined stimulus be it internal or externally applied. The hollow fibers may be closed off or even coated to provide a way to keep the modifying agent in the fibers until the appropriate time for selective release occurs. Self-repair, smart fiber matrix composite materials capable of repairing microcracks, releasing corrosion inhibitors or permeability modifiers are described as preferred embodiments in concrete and polymer based shaped articles.

    摘要翻译: 自修复,纤维增强基体材料包括基体材料,包括无机以及有机基体。 在基体内设置有含有选择性释放的改性剂的中空纤维。 中空纤维可以是无机或有机的,并且具有任何所需的长度,壁厚或横截面构型。 改性剂选自能够固化后有利地改性基质纤维复合材料的材料。 修改剂在使用中被选择性地释放到周围的基质中,以响应于内部或外部施加的预定刺激。 中空纤维可以被封闭或甚至被涂覆以提供将修饰剂保持在纤维中的方式,直到发生选择性释放的适当时间为止。 能够修复微裂纹,释放腐蚀抑制剂或渗透性改性剂的自修复智能纤维基质复合材料被描述为混凝土和聚合物基成型制品中的优选实施方案。

    Use of E-glass fibers to reduce plastic shrinkage cracks in concrete
    3.
    发明授权
    Use of E-glass fibers to reduce plastic shrinkage cracks in concrete 失效
    使用E玻璃纤维减少混凝土中的塑性收缩裂缝

    公开(公告)号:US06582511B1

    公开(公告)日:2003-06-24

    申请号:US09979861

    申请日:2001-11-26

    申请人: Vedagiri Velpari

    发明人: Vedagiri Velpari

    IPC分类号: C04B1438

    摘要: The present invention provides concrete having improved plastic shrinkage crack resistance, comprising: concrete; and non-alkaline resistant glass fibers. The present invention also provides a method of reducing plastic shrinkage cracks in concrete, comprising the steps of: combining cement, aggregate, sand, and water to form concrete; adding a desired amount of non-alkaline resistant glass fibers to the concrete; and mixing the concrete and glass fibers to disperse the glass fibers uniformly throughout the concrete, wherein the glass fibers reduce the amount of plastic shrinkage cracks of the concrete as compared to non-fiber reinforced concrete.

    摘要翻译: 本发明提供具有改进的塑性收缩抗裂性的混凝土,包括:混凝土; 和非耐碱玻璃纤维。 本发明还提供一种降低混凝土中塑性收缩裂缝的方法,包括以下步骤:将水泥,骨料,砂和水混合成混凝土; 向混凝土中加入所需量的非碱性玻璃纤维; 并混合混凝土和玻璃纤维,将玻璃纤维均匀地分散在整个混凝土中,其中与非纤维混凝土相比,玻璃纤维减少了混凝土的塑性收缩裂缝的数量。

    Electrically conductive concrete and controlled low strength materials having carbon fibers
    5.
    发明授权
    Electrically conductive concrete and controlled low strength materials having carbon fibers 有权
    具有碳纤维的导电混凝土和受控低强度材料

    公开(公告)号:US06821336B1

    公开(公告)日:2004-11-23

    申请号:US10641979

    申请日:2003-08-15

    IPC分类号: C04B1438

    摘要: Compositions are provided for increasing the electrical conductivity of concrete or controlled low-strength materials (flowable fill). One composition sets to produce a concrete and includes from 1% to 30% by weight of portland cement; from 1% to 30% by weight of fly ash having a carbon content as measured by loss on ignition of greater than 12%; from 40% to 90% by weight of an aggregate; from 0.1% to 20% by weight of carbon fibers; and water in a sufficient amount such that the composition sets to a concrete. Another composition is a self-compacting, cementitious flowable fill composition that includes from 1% to 30% by weight of portland cement; from 5% to 85% by weight of fly ash; from 0.1% to 20% by weight of carbon fibers; and water in a sufficient amount such that the composition sets to a material having a compressive strength of 8.3 MPa or less.

    摘要翻译: 提供组合物用于提高混凝土或受控低强度材料(可流动填充物)的导电性。 一种组合物用于生产混凝土,包括1%至30%重量的波特兰水泥; 1%至30%重量的具有通过灼烧失重测得的碳含量大于12%的飞灰; 40%至90%的骨料; 0.1重量%至20重量%的碳纤维; 和足够量的水,使得组合物设定为混凝土。 另一种组合物是自密实的水泥质可流动填充组合物,其包含1重量%至30重量%的波特兰水泥; 5%至85%重量的飞灰; 0.1重量%至20重量%的碳纤维; 和水,使得组合物设定为抗压强度为8.3MPa以下的材料。