WO2003033429A1 - Procede de preparation d'un beton isolant leger renfermant un granulat de liege ou de bois ou analogue enrobe de ciment et beton isolant leger obtenu - Google Patents
Procede de preparation d'un beton isolant leger renfermant un granulat de liege ou de bois ou analogue enrobe de ciment et beton isolant leger obtenu Download PDFInfo
- Publication number
- WO2003033429A1 WO2003033429A1 PCT/FR2002/003535 FR0203535W WO03033429A1 WO 2003033429 A1 WO2003033429 A1 WO 2003033429A1 FR 0203535 W FR0203535 W FR 0203535W WO 03033429 A1 WO03033429 A1 WO 03033429A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wood
- aggregate
- cork
- insulating concrete
- cement
- Prior art date
Links
- 239000002023 wood Substances 0.000 title claims abstract description 29
- 239000004567 concrete Substances 0.000 title claims abstract description 27
- 239000004568 cement Substances 0.000 title claims abstract description 21
- 239000007799 cork Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- 238000000576 coating method Methods 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 9
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 8
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 8
- 239000008187 granular material Substances 0.000 claims description 8
- 239000004571 lime Substances 0.000 claims description 8
- 239000004014 plasticizer Substances 0.000 claims description 8
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 5
- 238000004898 kneading Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 238000009877 rendering Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 abstract 1
- 238000011282 treatment Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000010426 asphalt Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910021487 silica fume Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000001033 granulometry Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/18—Waste materials; Refuse organic
- C04B18/24—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
- C04B18/28—Mineralising; Compositions therefor
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1055—Coating or impregnating with inorganic materials
- C04B20/1077—Cements, e.g. waterglass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Definitions
- the present invention relates to a process for the preparation of a light insulating concrete containing a granulate of cork or wood or the like, and the light insulating concrete obtained by said process.
- light insulating concretes are composite materials with a cementitious matrix in which the mineral aggregates conventionally used, such as gravel or sand, are partially or totally replaced by coated lightweight aggregates.
- Such lightweight insulating concrete offers advantages over conventional concrete, in addition to its lightness, it has qualities in terms of thermal insulation, acoustic and sound insulation.
- coated aggregates used must imperatively present certain criteria such as a low chemical reactivity with respect to the environment and small dimensional variations as a function of the hygrothermal variations to which they are subjected.
- coating treatments using resins or paraffin are known, but also coating treatments using cement.
- the first describes a treatment process which consists in dry coating the wood aggregates with silica smoke in order to create a barrier preventing, at least temporarily, the physico-chemical exchanges of the wood with the external environment.
- the coated wood granulate is obtained by brewing with water added with a plasticizer, then addition of cement or silica fume, and possibly water until a non-pasty mixture is obtained, then drying.
- the impregnation of the wood granulate by the mixture of plasticizer and cement leads to the sealing of the pores of the wood, the paste penetrating into the pores and the channels of the wood before solidifying.
- the light insulating concretes produced from such a coated wood aggregate have good qualities of stability with respect to hygrothermal variations.
- the aggregate thus prepared has drawbacks, mainly heterogeneity.
- the aggregates successively receive the various products which constitute the coating, such as cement, silica fume, plasticizer and water, and it has been observed that all the aggregates are not loaded in a homogeneous manner, some being loaded more in cement compared to others loaded more in plasticizer or others in silica smoke.
- This heterogeneity of coating induces embrittlement of the aggregates which undergo significant segregation during handling. It follows that a light insulating concrete produced with such aggregates can age badly and lose its qualities of thermal and sound insulation.
- the object of the present invention is to remedy this drawback by proposing a process for the preparation of light insulating concrete containing a granulate of cork or wood or the like coated with cement, and the light insulating concrete obtained, the coating of which is carried out so homogeneous.
- the process for preparing a light insulating concrete containing an aggregate of cork or wood or the like coated with cement according to the invention is of the type consisting in coating particles of cork or wood or the like with an element capable of rendering them inert towards external agents, and it is essentially characterized in that it consists in preparing a laitance with the various coating elements by mixing them with a certain amount of water, then in pouring said laitance by sprinkling on a cork aggregate or of wood or the like, then kneading the assembly until it results in a coating of said aggregate, and finally in drying the coated aggregate obtained.
- the wood granulate is dusted with cement or lime after kneading and before drying.
- the aggregate consists of cork or wood or similar grains, while the products incorporated into the water to produce the milt consist of a plasticizer, cement or lime and silica smoke.
- the grains of cork or wood or the like used are preferably of a particle size from 0 to 4 mm, from 0 to 8 mm, from 0 to
- the aggregates consist of cork or wood or similar waste while the products incorporated into the water to produce the milt consist of cement and / or lime, of plasticizer and silica. Given the mixing of the ingredients, products other than cement or lime can be minimized, thereby reducing the cost price.
- Example of proportions 220 Kg of cement, 2.2 Kg of plasticizer 11 Kg of silica Lime, instead of or in addition to cement, will preferably be used in hot countries, given the time required for it to dry.
- the light insulating concrete obtained with an aggregate of cork or wood or the like prepared according to the method according to the invention has better cohesion and therefore increased resistance. In addition, there was less shrinkage and friability, as well as better workability.
- the coating obtained by the process according to the invention therefore has numerous advantages compared to the coating practiced until now.
- the light insulating concrete according to the invention obviously has greater resistance to compression than a light insulating concrete prepared in the traditional way.
- the test consisted in subjecting the block to a temperature of
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA 2464146 CA2464146A1 (fr) | 2001-10-16 | 2002-10-16 | Procede de preparation d'un beton isolant leger renfermant un granulat de liege ou de bois ou analogue enrobe de ciment et beton isolant leger obtenu |
EP02790519A EP1436238A1 (fr) | 2001-10-16 | 2002-10-16 | Procede de preparation d'un beton isolant leger renfermant un granulat de liege ou de bois ou analogue enrobe de ciment et beton isolant leger obtenu |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR01/13341 | 2001-10-16 | ||
FR0113341A FR2830855B1 (fr) | 2001-10-16 | 2001-10-16 | Procede de preparation d'un beton isolant leger renfermant un granulat de liege ou de bois ou analogue enrobe de ciment, et beton isolant leger obtenu |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003033429A1 true WO2003033429A1 (fr) | 2003-04-24 |
Family
ID=8868364
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/003535 WO2003033429A1 (fr) | 2001-10-16 | 2002-10-16 | Procede de preparation d'un beton isolant leger renfermant un granulat de liege ou de bois ou analogue enrobe de ciment et beton isolant leger obtenu |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1436238A1 (fr) |
CA (1) | CA2464146A1 (fr) |
FR (1) | FR2830855B1 (fr) |
WO (1) | WO2003033429A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2154117A1 (fr) * | 2008-07-24 | 2010-02-17 | Miscanthus-Nawaro-Innovations S.A. | Matériau de construction ou mélange sec comprenant un agrégat végétal |
DE102010051059B4 (de) * | 2010-11-11 | 2014-07-17 | Robert Kuhnhenn | Zuschlagstoff aus Holzspänen, Verwendung dieses Zuschlagstoffes und Verfahren zu seiner Herstellung |
FR2992669B1 (fr) * | 2012-06-28 | 2015-01-16 | Michel Mouly | Blocs pour murs ventiles |
CN116425486B (zh) * | 2023-04-18 | 2024-04-26 | 青岛农业大学 | 一种木质骨料轻质保温混凝土及其制备工艺 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2457345A1 (de) * | 1973-12-04 | 1975-06-05 | Alexandre Hyacinthe Home | Ueberzogenes korkgranulat als bestandteil eines leichten, waerme- und schallisolierenden, widerstandsfaehigen granulats |
EP0139791A1 (fr) * | 1983-09-06 | 1985-05-08 | Bryce B. Wilde | Matériau de construction et procédé de fabrication |
DD250925A1 (de) * | 1986-07-15 | 1987-10-28 | Bauakademie Ddr | Herstellungsverfahren fuer holz-zement-verbundbaustoffe |
EP0517577A1 (fr) * | 1991-06-05 | 1992-12-09 | Industrie Du Bois Stabilise - Ibs | Procédé de traitement du bois sous forme divisée à destination de charge de béton |
EP0926104A1 (fr) * | 1997-12-18 | 1999-06-30 | Lafarge Cements S.A. | Béton de bois renfermant un granulat de bois enrobé de ciment |
EP1108696A1 (fr) * | 1999-12-17 | 2001-06-20 | Heribert Höhn | Procédé pour la minéralisation de matières premières renouvables, utilisation des matières premières minéralisées pour la fabrication de béton et d'éléments et matières de construction et les éléments et matières de construction ainsi obtenues |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19851630A1 (de) * | 1998-11-10 | 2000-05-11 | Hdb Weissinger Gmbh | Wand- / Decken- und Dachsystem für Fertigbauten |
-
2001
- 2001-10-16 FR FR0113341A patent/FR2830855B1/fr not_active Expired - Fee Related
-
2002
- 2002-10-16 CA CA 2464146 patent/CA2464146A1/fr not_active Abandoned
- 2002-10-16 EP EP02790519A patent/EP1436238A1/fr not_active Ceased
- 2002-10-16 WO PCT/FR2002/003535 patent/WO2003033429A1/fr not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2457345A1 (de) * | 1973-12-04 | 1975-06-05 | Alexandre Hyacinthe Home | Ueberzogenes korkgranulat als bestandteil eines leichten, waerme- und schallisolierenden, widerstandsfaehigen granulats |
EP0139791A1 (fr) * | 1983-09-06 | 1985-05-08 | Bryce B. Wilde | Matériau de construction et procédé de fabrication |
DD250925A1 (de) * | 1986-07-15 | 1987-10-28 | Bauakademie Ddr | Herstellungsverfahren fuer holz-zement-verbundbaustoffe |
EP0517577A1 (fr) * | 1991-06-05 | 1992-12-09 | Industrie Du Bois Stabilise - Ibs | Procédé de traitement du bois sous forme divisée à destination de charge de béton |
EP0926104A1 (fr) * | 1997-12-18 | 1999-06-30 | Lafarge Cements S.A. | Béton de bois renfermant un granulat de bois enrobé de ciment |
EP1108696A1 (fr) * | 1999-12-17 | 2001-06-20 | Heribert Höhn | Procédé pour la minéralisation de matières premières renouvables, utilisation des matières premières minéralisées pour la fabrication de béton et d'éléments et matières de construction et les éléments et matières de construction ainsi obtenues |
Non-Patent Citations (1)
Title |
---|
See also references of EP1436238A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2830855B1 (fr) | 2004-01-23 |
FR2830855A1 (fr) | 2003-04-18 |
EP1436238A1 (fr) | 2004-07-14 |
CA2464146A1 (fr) | 2003-04-24 |
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