-
1.发明授权PROCEDE ET COMPOSITION POUR FABRIQUER DES ELEMENTS EN BETON AYANT UNE RESISTANCE A LA COMPRESSION ET UNE ENERGIE DE FRACTURATION REMARQUABLES ET ELEMENTS AINSI OBTENUS 失效方法和组合物具有高抗压性和高BRUCK ENERGY混凝土构件生产，因此生产的部件
公开(公告)号：EP0658152B1
公开(公告)日：1997-12-29
申请号：EP94921000
申请日：1994-06-30
Applicant: BOUYGUES SA
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/m2. 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 °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.
-
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.
-
公开(公告)号：NO955359L
公开(公告)日：1996-03-01
申请号：NO955359
申请日：1995-12-29
Applicant: BOUYGUES SA
Abstract: A metal fiber concrete composition for molding a concrete element, the composition being essentially constituted by a Portland cement, granular elements, fine elements for pozzolan reaction, metal fibers, a dispersing agent, optionally other additives, and water. The preponderant granular elements have a maximum grain size D of not more than 800 micrometers. The preponderant metal fibers have individual lengths 1 lying in the range 4 mm to 20 mm. The ratio R of the mean length L of the fibers divided by said maximum size D of the granular elements is not less than 10. The amount of preponderant metal fibers is such that the volume of preponderant metal fibers lies in the range 1.0% to 4% of the volume of the concrete after setting.
-
公开(公告)号：NO955359A
公开(公告)日：1996-03-01
申请号：NO955359
申请日：1995-12-29
Applicant: BOUYGUES SA
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
-
公开(公告)号：FI956342A
公开(公告)日：1996-02-14
申请号：FI956342
申请日：1995-12-29
Applicant: BOUYGUES SA
Abstract: A metal fiber concrete composition for molding a concrete element, the composition being essentially constituted by a Portland cement, granular elements, fine elements for pozzolan reaction, metal fibers, a dispersing agent, optionally other additives, and water. The preponderant granular elements have a maximum grain size D of not more than 800 micrometers. The preponderant metal fibers have individual lengths 1 lying in the range 4 mm to 20 mm. The ratio R of the mean length L of the fibers divided by said maximum size D of the granular elements is not less than 10. The amount of preponderant metal fibers is such that the volume of preponderant metal fibers lies in the range 1.0% to 4% of the volume of the concrete after setting.
-
Patent Agency Ranking
公开(公告)号：FI956342A0
公开(公告)日：1995-12-29
申请号：FI956342
申请日：1995-12-29
Applicant: BOUYGUES SA
Abstract: A metal fiber concrete composition for molding a concrete element, the composition being essentially constituted by a Portland cement, granular elements, fine elements for pozzolan reaction, metal fibers, a dispersing agent, optionally other additives, and water. The preponderant granular elements have a maximum grain size D of not more than 800 micrometers. The preponderant metal fibers have individual lengths 1 lying in the range 4 mm to 20 mm. The ratio R of the mean length L of the fibers divided by said maximum size D of the granular elements is not less than 10. The amount of preponderant metal fibers is such that the volume of preponderant metal fibers lies in the range 1.0% to 4% of the volume of the concrete after setting.
-
公开(公告)号：NO950779L
公开(公告)日：1995-02-28
申请号：NO950779
申请日：1995-02-28
Applicant: BOUYGUES SA
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：FI950914A0
公开(公告)日：1995-02-28
申请号：FI950914
申请日：1995-02-28
Applicant: BOUYGUES SA
IPC: C04B28/02 , C04B14/06 , C04B14/48 , C04B18/14 , C04B28/04 , C04B28/18 , C04B40/02 , C04B111/20 , C04B
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：FI950914A
公开(公告)日：1995-02-28
申请号：FI950914
申请日：1995-02-28
Applicant: BOUYGUES SA
IPC: C04B28/02 , C04B14/06 , C04B14/48 , C04B18/14 , C04B28/04 , C04B28/18 , C04B40/02 , C04B111/20 , C04B
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：AT161526T
公开(公告)日：1998-01-15
申请号：AT94921000
申请日：1994-06-30
Applicant: BOUYGUES SA
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.
-
-
-
-
-
-
-
-
-
Search Results
23
records
(took 0.019 seconds)
