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公开(公告)号:AU682989B2
公开(公告)日:1997-10-23
申请号:AU5044196
申请日:1996-04-01
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.
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公开(公告)号:FI951292A
公开(公告)日:1995-09-22
申请号:FI951292
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 , C04B12/00 , E04C5/01 , C04B14/06 , C04B20/02 , C04B22/06 , C04B28/02 , C04B40/00 , C04B111/70 , C04B14/02 , C04B14/08
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.
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公开(公告)号:FI951292A0
公开(公告)日:1995-03-20
申请号:FI951292
申请日:1995-03-20
Applicant: RHONE POULENC CHIMIE , BOUYGUES SA
Inventor: DUGAT JEROME , FROUIN LAURENT , PRAT EVELYNE , RICHARD PIERRE
IPC: B28C5/00 , E04C5/01 , C04B7/13 , C04B12/00 , C04B14/06 , C04B20/02 , C04B22/06 , C04B28/02 , C04B40/00 , C04B111/70 , C04B
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.
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公开(公告)号:CA2332637C
公开(公告)日:2013-07-23
申请号:CA2332637
申请日:1999-05-12
Applicant: BOUYGUES SA , LAFARGE SA , RHODIA CHIMIE SA
Inventor: CHEYREZY MARCEL , DUGAT JEROME , BOIVIN SANDRA , ORANGE GILLES , FROUIN LAURENT
IPC: C04B28/02 , C04B14/06 , C04B14/20 , C04B14/38 , C04B16/06 , C04B18/08 , C04B18/14 , C04B20/10 , C04B40/00 , C04B40/02 , C04B111/20
Abstract: L'invention concerne un béton comportant des fibres organiques dispersées dans la matrice cimentaire. En combinant une matrice cimentaire de caractéristiques déterminées et des fibres organiques également de caractéristiques déterminées, notamment la grosseur des particules, la longueur et le diamètre des fibres, par un effet de synergie entre la matrice et les fibres organiques, on améliore le comportement du béton à la fois vis-à-vis de l'apparition de microfissures et de la propagation de macrofissures. La figure est un graphique obtenu par des essais de flexion quatre points respectivement pour des bétons de fibres métalliques et des bétons de fibres organiques.
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公开(公告)号:ES2205811T5
公开(公告)日:2010-12-27
申请号:ES99918063
申请日:1999-05-12
Applicant: BOUYGUES SA , LAFARGE SA
Inventor: FROUIN LAURENT , DUGAT JEROME , CHEYREZY MARCEL , BOIVIN SANDRA , ORANGE GILLES
IPC: C04B28/02 , C04B14/06 , C04B14/20 , C04B14/38 , C04B16/06 , C04B18/08 , C04B18/14 , C04B20/10 , C04B40/00 , C04B40/02 , C04B111/20
Abstract: Hormigón que comprende una matriz de cemento endurecida en la cual están dispersadas fibras orgánicas, que se obtiene al mezclar con agua una composición que contiene además de las fibras: (a) cemento, (b) elementos granulares, (c) elementos finos con reacción puzolánica, (d) por lo menos un agente dispersante y caracterizado porque: (1) los elementos granulares (b) tienen un tamaño de grano máximo D de 2 mm como máximo, preferentemente 1 mm como máximo, (2) los elementos finos con reacción puzolánica (c) tienen un tamaño de partícula elemental de 20 m como máximo, preferentemente 1 m como máximo, y porque: (3) el porcentaje en peso del agua con respecto al peso acumulado de cemento (a) y los elementos finos de reacción puzolánica (c) está comprendido entre 8% y 25%, (4) las fibras orgánicas tienen una longitud individual l de por lo menos 2 mm y una relación I/ de por lo menos 20, siendo el diámetro de las fibras, (5) la cantidad de fibras es tal que su volumen representa 8% como máximo del volumen del hormigón después de fraguar, (6) la relación R entre la longitud de las fibras promedio L y el tamaño de grano máximo D de los elementos granulares es de por lo menos 5.
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公开(公告)号:SK283561B6
公开(公告)日:2003-09-11
申请号:SK44196
申请日:1996-04-03
Applicant: RHONE POULENC CHIMIE , BOUYGUES SA
Inventor: BERTONCINI ANDRE , DUGAT JEROME , FROUIN LAURENT , JAQUIER JEAN-LUC , PRAT EVELYNE
IPC: B05B7/02 , B28B1/32 , B28C7/04 , C04B14/04 , C04B22/06 , E04F13/02 , C04B22/08 , C04B22/14 , C04B28/02 , C04B40/00 , E04G21/02 , C04B40/02
Abstract: Spraying surfaces with concrete or mortar 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 mixtures. 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.
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公开(公告)号:PL182815B1
公开(公告)日:2002-03-29
申请号:PL31361296
申请日:1996-04-03
Applicant: RHONE POULENC CHIMIE , BOUYGUES SA
Inventor: BERTONCINI ANDRE , DUGAT JEROME , FROUIN LAURENT , JAQUIER JEAN-LUC , PRAT EVELYNE
IPC: B05B7/02 , B28B1/32 , E04F13/02 , 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.
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公开(公告)号:FR2771406A1
公开(公告)日:1999-05-28
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
Abstract: Concrete consists of a strong cement matrix in which metallic fibers are dispersed. The concrete is obtained by mixing with water a composition comprising: (a) cement; (b) granular components with maximum grain size (D) no more than 2 mm, preferably no more than 1 mm; (c) 'slag' type fillers with particle size no more than 1 microns , preferably no more than 0.5 microns ; (d) components capable of improving the tenacity of the matrix selected from those with average size of no more than 1 mm; and (e) at least one dispersing agent. The concrete meets the following conditions: (f) ratio of water (E) to components (a) and (c) = 8-24 wt.%; (g) fibers have individual lengths (l) of at least 2 mm and l/d ratio (d = diameter) of at least 20; (h) ratio (R) of average fiber length to maximum grain size of granular components = at least 10; and (i) volume of fibers is preferably less than 3.5% volume of concrete. An Independent claim is also included for a pre-mixture for making the concrete.
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公开(公告)号:ES2112075T3
公开(公告)日:1998-03-16
申请号:ES96400680
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: B05B7/02 , B28B1/32 , B28C7/04 , C04B14/04 , C04B22/06 , C04B22/08 , E04F13/02 , 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.
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公开(公告)号:DK0736501T3
公开(公告)日:1997-12-22
申请号:DK96400680
申请日:1996-03-29
Applicant: BOUYGUES SA , RHONE POULENC CHIMIE
Inventor: PRAT EVELYNE , BERTONCINI ANDRE , FROUIN LAURENT , DUGAT JEROME , JAQUIER JEAN-LUC
IPC: B05B7/02 , B28B1/32 , E04F13/02 , 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.
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