公开(公告)号：WO1995001317A1

公开(公告)日：1995-01-12

申请号：PCT/FR1994000798

申请日：1994-06-30

Applicant: BOUYGUES

Inventor： BOUYGUES ,  RICHARD, Pierre,Emile, Félix ,  CHEYREZY, Marcel, Hubert ,  DUGAT, Jérôme, Antoine

IPC: C04B40/02

CPC classification number: C04B28/18 ,  C04B40/02 ,  C04B2201/00 ,  C04B14/06 ,  C04B14/062 ,  C04B14/48 ,  C04B40/0259 ,  C04B40/0263 ,  C04B2103/32

Abstract: The invention relates to a preparation of a concrete having a compression resistance of at least 400 MPa and a fracturation energy of at least 1 000 J/m . A mix containing substantially cement, fine sand, amorphous silica, crushed quartz, steel wool, a fluidifying agent and water in specific proportions is mixed and, after setting, the concrete is fired at a temperature of at least 250 DEG C. The figure is a micrography showing the microstructure of concrete according to the invention. The invention provides particularly for the making of concrete parts in replacement of steel, for example anchoring heads for prestressed cables.

Abstract translation: 本发明涉及具有至少400MPa的压缩阻力和至少1000J / m 2的断裂能的混凝土的制备。 将含有基本上水泥，细砂，无定形二氧化硅，粉碎石英，钢丝绒，流化剂和特定比例的水的混合物混合，并且在凝固之后，混合物在至少250℃的温度下被烧制。 显示根据本发明的混凝土的微结构的显微照片。 本发明特别用于制造用于替换钢的混凝土部件，例如用于预应力电缆的锚定头。

公开(公告)号：WO1995025702A1

公开(公告)日：1995-09-28

申请号：PCT/FR1995000289

申请日：1995-03-13

Applicant: RHONE-POULENC CHIMIE ,  BOUYGUES ,  BERTONCINI, André ,  DUGAT, Jérôme ,  FROUIN, Laurent ,  JAQUIER, Jean-Luc ,  PRAT, Evelyne ,  RICHARD, Pierre

Inventor： RHONE-POULENC CHIMIE ,  BOUYGUES

IPC: C04B28/02

CPC classification number: C04B20/10 ,  C04B22/06 ,  C04B28/02 ,  C04B40/0042 ,  C04B2111/00172 ,  E04F21/12 ,  C04B14/062 ,  C04B40/0028 ,  C04B2103/12 ,  C04B2103/22 ,  C04B24/26 ,  C04B2103/30 ,  C04B2103/50

Abstract: A wet-mix shotcreting method using a precipitated silica and comprising the steps of forming a batched concrete mixture of cement, aggregates, water and a precipitated silica, conveying the batched mixture and feeding it into a spray nozzle, and spraying the mixture from the nozzle onto the surface to be concreted.

Abstract translation: 一种使用沉淀二氧化硅的湿式混合喷射方法，包括以下步骤：形成水泥，聚集体，水和沉淀二氧化硅的分批混凝土混合物，输送分批混合物并将其进料到喷嘴中，并从喷嘴喷射混合物 到混凝土表面。

公开(公告)号：WO1995001316A1

公开(公告)日：1995-01-12

申请号：PCT/FR1994000800

申请日：1994-06-30

Applicant: BOUYGUES

Inventor： BOUYGUES ,  RICHARD, Pierre, Emile, Félix ,  CHEYREZY, Marcel, Hubert ,  ROUX, Nicolas, Pierre, Jean

IPC: C04B28/02

CPC classification number: C04B20/0076 ,  C04B14/48 ,  C04B28/04 ,  C04B40/0263 ,  C04B2111/00198 ,  E04C5/012 ,  Y02W30/92 ,  Y02W30/94 ,  Y10T428/2938 ,  Y10T428/294 ,  C04B14/06 ,  C04B18/08 ,  C04B18/141 ,  C04B20/1062

Abstract: The invention relates to a metal fiber concrete. Said concrete is prepared from a composition comprising granular elements of a size at the most equal to 800 micrometers and metal fibers whose length is comprised between 4 and 20 mm. The ratio between the average length of the fibers and the maximum size of the granular elelements being at least equal to 10 and the volume of the metal fibers being comprised between 1.0 and 4.0 % of the concrete volume after setting. The figure shows a curve of the tensile strength of the concrete compared to that of a conventional mortar. The invention aims particularly at producing concrete elements which do not require a conventional metal reinforcement.

Abstract translation: 本发明涉及一种金属纤维混凝土。 所述混凝土由包含尺寸最大等于800微米的颗粒元素和长度为4至20mm的金属纤维的组合物制备。 纤维的平均长度与颗粒状电极的最大尺寸之比至少等于10，金属纤维的体积占固化后混凝土体积的1.0〜4.0％。 该图显示了与常规砂浆相比，混凝土的拉伸强度曲线。 本发明特别涉及生产不需要常规金属加固的混凝土元件。