BE1005331A0 - HEAVY CONCRETE. - Google Patents
HEAVY CONCRETE. Download PDFInfo
- Publication number
- BE1005331A0 BE1005331A0 BE8900207A BE8900207A BE1005331A0 BE 1005331 A0 BE1005331 A0 BE 1005331A0 BE 8900207 A BE8900207 A BE 8900207A BE 8900207 A BE8900207 A BE 8900207A BE 1005331 A0 BE1005331 A0 BE 1005331A0
- Authority
- BE
- Belgium
- Prior art keywords
- cement
- water
- density
- setting accelerator
- concrete according
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/0081—Embedding aggregates to obtain particular properties
- B28B23/0093—Heavy aggregates or scrap material for making heavy articles
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/0031—Heavy materials, e.g. concrete used as ballast material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
L'invention concerne l'obtention de bétons de masse volumique élévée, en vue, notamment, de leur utilisation comme lest, contrpoids ou masses d'équilibrage.Ces bétons se caractérisent par le mélange de granaille métallique, d'hématite, de ciment, d'un liant plastique réducteur d'eau et d'un accélérateur de prise dans des proportions permettant d'obtenir une masse volumique précise, comprise entre 3200kg/m3 et 6300 kg/m3.The invention relates to obtaining concretes of high density, with a view, in particular, to their use as ballast, counterweight or balancing masses. These concretes are characterized by the mixture of metallic granule, hematite, cement, a water-reducing plastic binder and a setting accelerator to obtain a precise density, between 3200kg / m3 and 6300 kg / m3.
Description
"Bétons lourds" L'invention concerne un procédé d'obtention de bétons lourds destinés notamment à la fabrication de lest, de contrepoids ou de masses d'équilibrage."Heavy concrete" The invention relates to a process for obtaining heavy concrete intended in particular for the manufacture of ballast, counterweight or balancing masses.
Il est connu d'incorporer au béton des particules d'une matière de masse volumique élevée telles que de la grenaille ou des riblons de fer ou de fonte, ou encore des ferrosilicium à Haute teneur en fer, en vue d'en augmenter la masse volumique.It is known to incorporate into the concrete particles of a high density material such as shot or iron or cast iron pellets, or even ferrosilicon with a high iron content, in order to increase its mass. volume.
De tels procédés sont décrits dans les brevets français: - FR-A- 1.361.966, ayant pour objet un procédé pour la fabrication de blocs de béton chargé de fer servant commes lest, contrepoids et analogues et les produits obtenus par ce procédé, qui se caractérise principalement en ce que, lors de la préparation du béton, une certaine proportion de gravier est remplacée par de la limaille de fer, de fonte, d'acier et/ou d'autres métaux de poids spécifique élevé ; le mélange obtenu étant ensuite coulé dans des moules de forme appropriée, puis démoulé après solidification, - FR-A- 2.529.873 concernant l'utilisation du ferrosilicium à haute teneur en fer pour l'élaboration de bétons très denses et de lests utilisables en particulier en mer. La masse volumique des bétons ainsi obtenus, pouvant être ajustée suivant la quantité de ferrosilicium incorporé, et dans le brevet anglais : - 6B-A- 2.020.294 ayant pour objet des lests pour quilles de bateaux, constitués de particules métalliques incorporées à un liant assurant la solidification, tel que du ciment, du bitume ou de la résine.Such processes are described in French patents: - FR-A- 1,361,966, having as their object a process for the manufacture of concrete blocks loaded with iron serving as ballast, counterweights and the like and the products obtained by this process, which is mainly characterized in that, during the preparation of concrete, a certain proportion of gravel is replaced by iron filings, cast iron, steel and / or other metals of high specific weight; the mixture obtained then being poured into molds of suitable shape, then removed from the mold after solidification, - FR-A- 2,529,873 concerning the use of ferrosilicon with a high iron content for the production of very dense concretes and ballasts usable in particularly at sea. The density of the concretes thus obtained, which can be adjusted according to the quantity of ferrosilicon incorporated, and in the English patent: - 6B-A- 2,020,294 having for object ballast for boat keels, made up of metallic particles incorporated into a binder ensuring solidification, such as cement, bitumen or resin.
Il est difficile, en utilisant les procédés rappelés ci- dessus, d'obtenir un produit de masse volumique suffisamment précise et suffisamment élevée offrant des caractéristiques mécaniques appropriées, un temps de prise compatible avec une fabrication en série et ayant une résistance suffisante â la corrosion inter-granulaire. Par ailleurs, l'utilisation de ferrosilicium silaso, telle que décrite dans la demande de brevet français FRA-2.529.873 impose des contraintes d'approvisionnement certaines.It is difficult, using the methods recalled above, to obtain a product of sufficiently precise and sufficiently high density offering suitable mechanical characteristics, a setting time compatible with mass production and having sufficient corrosion resistance. inter-granular. Furthermore, the use of silos ferrosilicon, as described in French patent application FRA-2,529,873 imposes certain supply constraints.
La présente invention a pour but de remédier à ces inconvénients. Cette invention, telle qu'elle se caractérise, résout le problème consistant â définir un procédé permettant d'obtenir des bétons de densité déterminée, â séchage rapide, offrant une bonne résistance à la corrosion, maLgré l'utilisation de particules ferreuses, et une bonne cohésion.The present invention aims to remedy these drawbacks. This invention, as it is characterized, solves the problem of defining a process making it possible to obtain concretes of determined density, quick drying, offering good resistance to corrosion, despite the use of ferrous particles, and a good cohesion.
Ce béton se caractérise principalement en ce qu'il est constitué de grenaille métallique, d'hématite, de ciment, d'un liant plastique réducteur d'eau et d'un accélérateur de prise.This concrete is mainly characterized in that it consists of metallic shot, hematite, cement, a plastic binder reducing water and a setting accelerator.
La grenaille est obtenue à partir d'acier ou de fonte, selon une granulométrie de 1 à 6mm.The shot is obtained from steel or cast iron, with a particle size of 1 to 6mm.
L'hématite utilisée est de l'hématite USC 161.The hematite used is USC 161 hematite.
Le ciment utilisé est du ciment CPA 55.The cement used is CPA 55 cement.
L'accélérateur de prise est exempt de chlore et de produits corrosifs.The setting accelerator is free from chlorine and corrosive products.
Une masse volumique de 4500kg/m3 peut être obtenue par le mélange de : . 2 950 kg de grenaille, . 1 100 kg d'hématite, . 350 kg de ciment, . 160 kg d’eau, . liant plastique réducteur d'eau, . 2 à 6% d'accélérateur de prise, par rapport à la masse de ciment.A density of 4500kg / m3 can be obtained by mixing:. 2,950 kg of shot,. 1100 kg of hematite,. 350 kg of cement,. 160 kg of water,. water-reducing plastic binder,. 2 to 6% setting accelerator, based on the mass of cement.
Une masse volumique de 5400 kg/m3 peut être obtenue par le mélange de : . 4 900 kg de grenaille/ . 350 kg de ciment/ . 160 kg d'eau, . liant plastique réducteur d'eau, • 2 à 6% d'accélérateur de prise, par rapport à la masse de ciment.A density of 5400 kg / m3 can be obtained by mixing:. 4,900 kg of shot /. 350 kg of cement /. 160 kg of water,. water-reducing plastic binder, • 2 to 6% setting accelerator, based on the mass of cement.
Une masse volumique de 6300 kg/m^ peut être obtenue par le mélange de : . 5 800 kg de grenaille/ . 350 kg de ciment, - 160 kg d'eau, . liant plastique réducteur d'eau, 2 à 6% d'accélérateur de prise, par rapport à la masse de ciment.A density of 6300 kg / m ^ can be obtained by mixing:. 5,800 kg of shot /. 350 kg of cement, - 160 kg of water,. water-reducing plastic binder, 2 to 6% setting accelerator, based on the mass of cement.
Les avantages obtenus, grâce à cette invention, consistent essentiellement en ceci que le ciment, ainsi obtenu, offre des caractéristiques mécaniques et une résistance à la corrosion compatible avec son utilisation comme masse d'équilibrage ou comme lest dans des conditions particulièrement sévères.The advantages obtained, thanks to this invention, essentially consist in the fact that the cement thus obtained offers mechanical characteristics and corrosion resistance compatible with its use as a balancing mass or as ballast under particularly severe conditions.
L'incorporation d'accélérateur de prise dans des proportions de 2 à 6%, selon la température extérieure, permet de réduire le temps d'étuvage et la durée de prise, tout en assurant une protection contre le gel jusqu'à -5°C.The incorporation of setting accelerator in proportions of 2 to 6%, depending on the outside temperature, makes it possible to reduce the baking time and setting time, while ensuring frost protection up to -5 ° vs.
Le mélange est effectué de façon à obtenir une composition aussi homogène que possible, afin d'éviter la formation de couches séparatrices susceptibles de réduire la résistance mécanique du produit final.The mixing is carried out so as to obtain a composition which is as homogeneous as possible, in order to avoid the formation of separating layers capable of reducing the mechanical resistance of the final product.
IL est recommandé d'utiliser un vibrateur lors de la coulée du mélange, afin d'obtenir une bonne pénétration inter-granulaire des éléments liquide et une élimination des bulles d'air.It is recommended to use a vibrator when pouring the mixture, in order to obtain good inter-granular penetration of the liquid elements and elimination of air bubbles.
Il est ainsi possible de faire varier la masse volumique, de façon suffisamment précise, entre La masse volumique normale du mortier et une masse volumique de 6300 kg/m^ voire davantage, tout en conservant au béton, ainsi obtenu, des caractéristiques mécaniques suffisantes pour les utilisations courantes; en particulier pour la fabrication de masse d'équilibrage de machine, notamment de machine à laver.It is thus possible to vary the density, with sufficient precision, between the normal density of the mortar and a density of 6300 kg / m 2 or even more, while retaining the concrete thus obtained, sufficient mechanical characteristics to common uses; in particular for the manufacture of balancing weights for machines, especially washing machines.
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8802670 | 1988-02-29 | ||
FR8802670A FR2627770B1 (en) | 1988-02-29 | 1988-02-29 | HEAVY CONCRETE |
Publications (1)
Publication Number | Publication Date |
---|---|
BE1005331A0 true BE1005331A0 (en) | 1993-06-29 |
Family
ID=9363856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE8900207A BE1005331A0 (en) | 1988-02-29 | 1989-02-28 | HEAVY CONCRETE. |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE1005331A0 (en) |
DE (1) | DE3906061A1 (en) |
ES (1) | ES2010141A6 (en) |
FR (1) | FR2627770B1 (en) |
IT (1) | IT1228895B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2183673B1 (en) * | 2000-02-03 | 2004-09-01 | Sic Lazaro, S.L. | PROCEDURE FOR THE MANUFACTURE OF HIGH DENSITY COUNTERWEIGHTS. |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE562926A (en) * | ||||
US4188231A (en) * | 1977-06-17 | 1980-02-12 | Valore Rudolph C | Methods of preparing iron oxide mortars or cements with admixtures and the resulting products |
FR2529873A1 (en) * | 1982-07-06 | 1984-01-13 | Herbinger Claude | The use of ferrosilicon with a high iron content for making very dense concretes and ballasts which can be used particularly offshore. |
JPS59102858A (en) * | 1982-12-01 | 1984-06-14 | 電気化学工業株式会社 | Super high strength cement mortar concrete hardened body |
-
1988
- 1988-02-29 FR FR8802670A patent/FR2627770B1/en not_active Expired - Fee Related
-
1989
- 1989-02-27 IT IT8919565A patent/IT1228895B/en active
- 1989-02-27 DE DE3906061A patent/DE3906061A1/en not_active Ceased
- 1989-02-28 ES ES8900724A patent/ES2010141A6/en not_active Expired
- 1989-02-28 BE BE8900207A patent/BE1005331A0/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE562926A (en) * | ||||
US4188231A (en) * | 1977-06-17 | 1980-02-12 | Valore Rudolph C | Methods of preparing iron oxide mortars or cements with admixtures and the resulting products |
FR2529873A1 (en) * | 1982-07-06 | 1984-01-13 | Herbinger Claude | The use of ferrosilicon with a high iron content for making very dense concretes and ballasts which can be used particularly offshore. |
JPS59102858A (en) * | 1982-12-01 | 1984-06-14 | 電気化学工業株式会社 | Super high strength cement mortar concrete hardened body |
Non-Patent Citations (2)
Title |
---|
CHEMICAL ABSTRACTS, vol. 101, no. 20, novembre 1984, page 318, abstract no. 176476c, Columbus, Ohio, US; & JP-A-59 102 858 (DENKI KAGAKU KOGYO K.K.) 14-06-1984 * |
CHEMICAL ABSTRACTS, vol. 90, no. 2, 8 janvier 1979, page 311, abstract no. 11348d, Columbus, Ohio, US; B. GARADNAI et al.: "Properties and corrosion resistance of normal-weight and heavy cement slurries with blast-furnace slags", & PR. VYZK. USTAVU. GEOL. INZ. 1978, 35(2A), 125-37 * |
Also Published As
Publication number | Publication date |
---|---|
FR2627770A1 (en) | 1989-09-01 |
IT1228895B (en) | 1991-07-09 |
ES2010141A6 (en) | 1989-10-16 |
FR2627770B1 (en) | 1992-05-07 |
DE3906061A1 (en) | 1989-09-28 |
IT8919565A0 (en) | 1989-02-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2555590C (en) | Ultra-high-performance, self-compacting concrete, preparation method thereof and use of same | |
EP1263690B2 (en) | Fire-resistant high performance concrete composition | |
FR2537127A1 (en) | CONCRETE ADDITIVE COMPRISING A MIXTURE WITH MULTIPLE COMPONENTS CONTAINING MICROSILICE, PROCESS FOR MANUFACTURING THE SAME, AND CONCRETE MADE WITH THIS ADDITIVE | |
EP0934915A1 (en) | Self-leveling, very high performance concrete, process for its preparation and its utilisation | |
CH673454A5 (en) | ||
FR2567803A1 (en) | PROCESS FOR MANUFACTURING MOLDED OBJECTS BASED ON FIBER-REINFORCED ALUMINUM COMPOSITE | |
GB2377930A (en) | A self-levelling concrete composition | |
CA2242018A1 (en) | Concrete composition reinforced by metal tape, its preparation process and pieces obtained from this composition | |
BE1005331A0 (en) | HEAVY CONCRETE. | |
JP6020677B2 (en) | Artificial stone | |
JP3550341B2 (en) | Plastic injection material | |
KR101870874B1 (en) | High density concrete composition and manufacturing method of high density concrete composition for manufacturing habor structure | |
WO1992002468A1 (en) | Method for producing lightweight aggregates, adhesive composition for implementing same, and aggregates thereby obtained | |
EP0406072A2 (en) | Chemical ingredient for hydraulic cement mixtures | |
FR3065455B1 (en) | USE OF AIR CONDITIONING AGENT TO REDUCE THE DRYING TIME OF A CALCIUM SULPHATE-BASED FIRE | |
FR2920765A1 (en) | Activating and/or accelerating setting of non-refractory concrete, mortar or cement paste, e.g. Portland cement, by applying ultrasonic vibrations | |
FR2507592A1 (en) | METHOD FOR MANUFACTURING LIGHTWEIGHT CONSTRUCTION MATERIAL | |
JP2011006310A (en) | Fine aggregate for concrete and method for evaluating the same | |
FR2507177A1 (en) | PROCESS FOR THE MANUFACTURE OF AN INSULATED MIXTURE OF CONCRETE, MORTAR OR THE LIKE, CONTAINING AGGREGATES OF SUBSTANTIALLY LOWER DENSITY | |
JPH09227202A (en) | Underwater block | |
FR2995303A1 (en) | Dry composition, useful for preparing permeable concrete for manufacturing outdoor floor tiles for individual paths and terraces, comprises, in solid state, a hydraulic binder, aggregates, a plasticizer, and a reactive pozzolanic material | |
Ndon et al. | Evaluation of the effects of different additives on compressive strength of clay-based concrete admixtures | |
RU2077521C1 (en) | Raw mix for manufacturing building parts | |
FR2705663A1 (en) | Sand concrete of high tensile strength and articles, especially thin plates intended for the building industry, made of such a sand concrete and process for the manufacture of these articles | |
FR2513242A1 (en) | COLLID REFRACTORY MATERIAL FOR FOUNDRY POCKET TRIM |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: S.A. SAFI Effective date: 19970228 |