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    Concrete comprising organic fibers in cement matrix
    15.
    发明专利
    Concrete comprising organic fibers in cement matrix 未知

    公开(公告)号：FR2778654A1

    公开(公告)日：1999-11-19

    申请号：FR9806092

    申请日：1998-05-14

    Applicant: BOUYGUES SA

    Inventor： CHEYREZY MARCEL HUBERT ,  DUGAT JEROME ,  BOIVIN SANDRA ,  ORANGE GILLES ,  FROUIN LAURENT

    IPC: C04B14/06 ,  C04B14/20 ,  C04B14/38 ,  C04B16/06 ,  C04B18/08 ,  C04B20/10 ,  C04B28/02 ,  C04B40/02 ,  C04B111/20 ,  C04B28/00 ,  C04B41/00

    Abstract: Concrete comprises organic fibers dispersed in a hardened cement matrix. Concrete comprising organic fibers dispersed in a hardened cement matrix is obtained by mixing with water composition comprising fibers and: (a) cement; (b) granular components with maximum size, D, of no more than 2 mm, preferably no more than 1 mm; (c) fine components from ash with size no greater than 20 microns preferably no greater than 1 microns ; and (d) at least one dispersing agent; said composition meeting the following conditions: (e) wt. % water with respect to total weight of (a) and (c) = 8-25; (f) organic fibers have individual length, l , of at least 2 mm and ratio l\/ phi ( phi = diameter) at least = 20; (g) ratio, R, of mean length of fibers to D at least = 5; and (h) quantity of fibers is such that their volume represents no more than 8% total volume of concrete. An Independent claim is also included for pre-mixture for preparing cement matrix for making said concrete.

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