公开(公告)号：FR2771406B1

公开(公告)日：2000-02-11

申请号：FR9714928

申请日：1997-11-27

Applicant: BOUYGUES SA

Inventor： CHEYREZY MARCEL HUBERT ,  DUGAT JEROME ,  CLAVAUD BERNARD ,  ORANGE GILLES ,  FROUIN LAURENT

IPC: C04B28/04 ,  C04B14/20 ,  C04B14/48 ,  C04B28/02 ,  C04B111/20 ,  C04B28/00

Abstract: The invention concerns a concrete obtained by mixing with water, cement, granular elements, elements with puzzolanic reaction, constituents capable of improving the toughness of the matrix, metal fibers and at least a dispersing agent, in specified conditions and proportions. Said concrete has improved properties compared to prior art concrete comprising metal fibers.

公开(公告)号：CA2145032C

公开(公告)日：2000-02-01

申请号：CA2145032

申请日：1995-03-20

Applicant: BOUYGUES SA ,  RHONE POULENC CHIMIE

Inventor： DUGAT JEROME ,  FROUIN LAURENT ,  PRAT EVELYNE ,  RICHARD PIERRE

IPC: E04C5/01 ,  B28C5/00 ,  C04B7/13 ,  C04B12/00 ,  C04B14/06 ,  C04B20/02 ,  C04B22/06 ,  C04B28/02 ,  C04B40/00 ,  C04B111/70 ,  C04B28/04 ,  E04C5/08

Abstract: Coulis d'injection pour l'enrobage d'une armature, qui comprend environ 1,5 à 3% en poids (par rapport au poids de ciment), de particules hydrophiles, inertes vis-à-vis des liquides, ayant une surface spécifique supérieure à environ 200 m2/g et aptes à se fractionner pendant le mélange et/ou l'injection, en multiples fragments dont la grosseur peut être aussi petite que 5 nanomètres et aussi grosse que 300 nanomètres. Un tel coulis convient notamment pour l'enrobage des armatures de précontrainte.

公开(公告)号：DE69407553T2

公开(公告)日：1998-04-23

申请号：DE69407553

申请日：1994-06-30

Applicant: BOUYGUES SA

Inventor： RICHARD PIERRE ,  CHEYREZY MARCEL ,  DUGAT JEROME

IPC: C04B28/02 ,  C04B14/06 ,  C04B14/48 ,  C04B18/14 ,  C04B28/04 ,  C04B28/18 ,  C04B40/02 ,  C04B111/20

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 DEG 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.

公开(公告)号：AT159007T

公开(公告)日：1997-10-15

申请号：AT96400680

申请日：1996-03-29

Applicant: RHONE POULENC CHIMIE ,  BOUYGUES SA

Inventor： BERTONCINI ANDRE ,  FROUIN LAURENT ,  DUGAT JEROME ,  JAQUIER JEAN-LUC ,  PRAT EVELYNE

IPC: E04F13/02 ,  B05B7/02 ,  B28B1/32 ,  B28C7/04 ,  C04B14/04 ,  C04B22/06 ,  C04B22/08 ,  C04B22/14 ,  C04B28/02 ,  C04B40/00 ,  E04G21/02

Abstract: Concrete or mortar is sprayed onto a surface by adding an aqueous suspension of silica, and an aluminium cpd. selected from aluminium sulphate, basic aluminium sulphate, alkali metal aluminium sulphate or their mixts.. The suspension has a pH of less than 4, and contains 10-50 wt.% dry material. After storing for 48 hrs., it forms a gel which can be converted back into a suspension by mild stirring.

公开(公告)号：DE69214522D1

公开(公告)日：1996-11-21

申请号：DE69214522

申请日：1992-06-12

Applicant: BOUYGUES SA

Inventor： RICHARD PIERRE ,  CHEYREZY MARCEL ,  DUGAT JEROME

IPC: C04B18/04 ,  C04B18/14 ,  C04B28/04

公开(公告)号：AU5044196A

公开(公告)日：1996-10-17

申请号：AU5044196

申请日：1996-04-01

Applicant: BOUYGUES SA ,  RHONE POULENC CHIMIE

Inventor： BERTONCINI ANDRE ,  FROUIN LAURENT ,  DUGAT JEROME ,  JAQUIER JEAN-LUC ,  PRAT EVELYNE

IPC: E04F13/02 ,  B05B7/02 ,  B28B1/32 ,  B28C7/04 ,  C04B14/04 ,  C04B22/06 ,  C04B22/08 ,  C04B22/14 ,  C04B28/02 ,  C04B40/00 ,  E04G21/02

Abstract: Concrete or mortar is sprayed onto a surface by adding an aqueous suspension of silica, and an aluminium cpd. selected from aluminium sulphate, basic aluminium sulphate, alkali metal aluminium sulphate or their mixts.. The suspension has a pH of less than 4, and contains 10-50 wt.% dry material. After storing for 48 hrs., it forms a gel which can be converted back into a suspension by mild stirring.

公开(公告)号：CZ96796A3

公开(公告)日：1996-10-16

申请号：CZ96796

申请日：1996-04-02

Applicant: RHONE POULENC CHIMIE ,  BOUYGUES SA

Inventor： BERTONCINI ANDRE ,  DUGAT JEROME ,  FROUIN LAURENT ,  JAQUIER JEAN LUC ,  PRAT EVELYNE

IPC: E04F13/02 ,  B05B7/02 ,  B28B1/32 ,  B28C7/04 ,  C04B14/04 ,  C04B22/06 ,  C04B22/08 ,  C04B22/14 ,  C04B28/02 ,  C04B40/00 ,  E04G21/02

Abstract: Concrete or mortar is sprayed onto a surface by adding an aqueous suspension of silica, and an aluminium cpd. selected from aluminium sulphate, basic aluminium sulphate, alkali metal aluminium sulphate or their mixts.. The suspension has a pH of less than 4, and contains 10-50 wt.% dry material. After storing for 48 hrs., it forms a gel which can be converted back into a suspension by mild stirring.

公开(公告)号：FR2717465B1

公开(公告)日：1996-04-26

申请号：FR9403261

申请日：1994-03-21

Applicant: RHONE POULENC CHIMIE ,  BOUYGUES SA

Inventor： PRAT EVELYNE ,  RICHARD PIERRE ,  FROUIN LAURENT ,  DUGAT JEROME

IPC: B28C5/00 ,  C04B7/13 ,  C04B12/00 ,  C04B14/06 ,  E04C5/01 ,  C04B20/02 ,  C04B22/06 ,  C04B28/02 ,  C04B40/00 ,  C04B111/70 ,  C04B14/04 ,  C04B28/04 ,  E04G21/12

Abstract: The material for injection to shroud a framework, and especially prestressed cables, is composed of 1.3-3.0 wt.% of inert hydrophilic particles in the cement mixture. They have a specific surface of more than 200 m /g, to give a fraction during mixing and/or injection into numerous fragments as small as 5 nanometres and as large as 300 nanometres. The particles are of precipitated silica.

公开(公告)号：NO951054L

公开(公告)日：1995-09-22

申请号：NO951054

申请日：1995-03-20

Applicant: RHONE POULENC CHIMIE ,  BOUYGUES SA

Inventor： DUGAT JEROME ,  FROUIN LAURENT ,  PRAT EVELYNE ,  RICHARD PIERRE

IPC: B28C5/00 ,  C04B7/13 ,  E04C5/01 ,  C04B12/00 ,  C04B14/06 ,  C04B20/02 ,  C04B22/06 ,  C04B28/02 ,  C04B40/00 ,  C04B111/70 ,  C04B14/04

Abstract: The material for injection to shroud a framework, and especially prestressed cables, is composed of 1.3-3.0 wt.% of inert hydrophilic particles in the cement mixture. They have a specific surface of more than 200 m /g, to give a fraction during mixing and/or injection into numerous fragments as small as 5 nanometres and as large as 300 nanometres. The particles are of precipitated silica.

公开(公告)号：NO951054A

公开(公告)日：1995-09-22

申请号：NO951054

申请日：1995-03-20

Applicant: RHONE POULENC CHIMIE ,  BOUYGUES SA

Inventor： DUGAT JEROME ,  FROUIN LAURENT ,  PRAT EVELYNE ,  RICHARD PIERRE

IPC: E04C5/01 ,  B28C5/00 ,  C04B7/13 ,  C04B12/00 ,  C04B14/06 ,  C04B20/02 ,  C04B22/06 ,  C04B28/02 ,  C04B40/00 ,  C04B111/70 ,  C04B14/04

CPC classification number: C04B14/06 ,  C04B14/062 ,  C04B20/026 ,  C04B28/02 ,  C04B40/0028 ,  C04B2111/70 ,  C04B20/008 ,  C04B32/02 ,  C04B2103/22 ,  C04B2103/30