CH310260A - A method of manufacturing a thermo-acoustic insulation and thermo-acoustic insulation obtained by this process. - Google Patents
A method of manufacturing a thermo-acoustic insulation and thermo-acoustic insulation obtained by this process.Info
- Publication number
- CH310260A CH310260A CH310260DA CH310260A CH 310260 A CH310260 A CH 310260A CH 310260D A CH310260D A CH 310260DA CH 310260 A CH310260 A CH 310260A
- Authority
- CH
- Switzerland
- Prior art keywords
- thermo
- rice
- acoustic insulation
- haul
- cement
- Prior art date
Links
- 238000009413 insulation Methods 0.000 title claims description 18
- 238000000034 method Methods 0.000 title claims description 10
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 241000209094 Oryza Species 0.000 claims description 23
- 235000007164 Oryza sativa Nutrition 0.000 claims description 23
- 235000009566 rice Nutrition 0.000 claims description 23
- 239000011230 binding agent Substances 0.000 claims description 14
- 239000004568 cement Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 6
- 238000005054 agglomeration Methods 0.000 claims description 5
- 230000002776 aggregation Effects 0.000 claims description 5
- 239000010426 asphalt Substances 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- 235000021028 berry Nutrition 0.000 claims description 3
- 239000010903 husk Substances 0.000 claims description 2
- 230000001464 adherent effect Effects 0.000 claims 1
- 239000004567 concrete Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000000576 coating method Methods 0.000 description 4
- 241000779819 Syncarpia glomulifera Species 0.000 description 3
- 239000011449 brick Substances 0.000 description 3
- 239000001739 pinus spp. Substances 0.000 description 3
- 229940036248 turpentine Drugs 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011509 cement plaster Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000045947 parasite Species 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000005554 pickling Methods 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
- C04B18/248—Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork from specific plants, e.g. hemp fibres
-
- 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
- C04B20/02—Treatment
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/16—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of fibres, chips, vegetable stems, or the like
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Botany (AREA)
- Wood Science & Technology (AREA)
- Building Environments (AREA)
Description
Procédé de fabrication d'un isolant thermo-acoustique et isolant thermo-acoustique obtenu par ce procédé. On connait des revêtements d'éléments de construction servant d'isolants thermo-acousti- ques. Ces revêtements sont généralement fabri qués à base de liège, de fibres de coco, die soie de verre, etc.
La plupart des produits de base qui entrent dans la, composition de ces revête- menas présentent l'inconvénient d'être coû teux et susceptibles de s'altérer à la longue.
On a constaté que le déchet de la décorti cation du riz, connu soLu la dénomination de hale de riz, pouvait être traité afin de rendre possible son agglomération avec du ciment ou d'autres liants, dans le but de former une masse légère, imputrescible; présentant d'excel lentes propriétés d'isolation thermique et so nique. Selon le liant utilisé, l'isolant obtenu est complètement incombustible et ininflam mable.
La présente invention concerne donc un procédé @de fabrication d'un isolant thermo- acoustique, à base de bale de riz, caractérisé en ce que des déchets de décortication du riz sont soumis à un traitement de décapage préalable pour rendre leur surface adhésive en mettant à jour leur structure microporeuse, puis sont agglomérés au moyen d'un liant.
Un mode d'exécution du procédé selon la présente invention est le suivant: Les déchets .de la décortication du riz su bissent 'un traitement préalable consistant à les soumettre à l'action d'un jet de térében- thine sous haute pression, afin d'enlever le brillant de leur surface et mettre à jour la structure de leurs cellules microscopiques po reuses.
Ce traitement a, en outre, pour but de rendre, possible leur agglomération au moyen d'un liant, par exemple du ciment.
La hale de riz ainsi traitée est ensuite agglomérée à l'aide d'un liant, .par exemple du ciment ou un mélange de ciment et de sable, une matière bitumineuse ou à base de magnésie.
<B>4</B> Pour parfaire la prise de la hale de riz traitée avec le ciment, on pourrait ajouter soit de la terre glaise, soit du charbon de bois.
L'invention comprend également l'isolant thermo-acoustique obtenu par le procédé ci dessus défini.
A titre d'exemple, cet isolant thermo- -acoustique peut servir de chape de revêtement isolant à une dalle de béton ou à un plancher. Exemple <I>1:</I> ,.
On pose sur une dalle en béton ou en bri ques du carton bitumé sur lequel on applique une épaisseur de baie de riz décapée, mélan- gée avec du ciment ou un autre liant, ainsi qu'avec une certaine proportion d'eau, et l'on recouvre ensuite le tout d'un mortier de ci ment complétant la chape de plancher.
<I>Exemple 2: ,</I> On mouille suffisamment la dalle en béton ou en briques en y ajoutant, éventuellement, un enduit de ciment. Puis on pose sur les bords de la balle et. le long des murs du carton bitumé que l'on plie sous la forme d'une cor nière. On remplit l'espace ainsi formé d'une couche de sable tassé et fortement mouillé en ajoutant ensuite la hale de riz décapée, mé langée au ciment et à l'eau.
Après durcisse ment, le tout est recouvert d'une couche de répartition en mortier de ciment, en vue de compléter et de lisser le plancher. Exemple <I>3:</I> Dans certains cas, par exemple pour des raisons d'économie, il est également possible de procéder comme dans l'exemple 2, mais en supprimant l'application de sable.
<I>Exemple</I> On pose sur la dalle en. béton ou en bri ques une feuille de carton bitumé sur laquelle a été agglomérée au préalable de la hale de riz décapée à la térébenthine et du bitume ou un agglomérant quelconque. On applique en suite un mélange composé de hale de riz dé capée à la térébenthine; de ciment et d'eau. Immédiatement après son application ou après durcissement, le tout est recouvert d'une couche de ciment, en vue d'assurer la répar tition de la charge concentrée et de compléter le plancher.
La résistance et le rendement thermique d'un isolant ainsi fabriqué sont dépendants du pourcentage du liant, en l'espèce du ciment, ajouté à la hale de riz décapée.
Le mélange de la hale de riz décapée, du ciment et de l'eau peut s'effectuer soit ma nuellement, soit au moyen d'une bétonnière. La masse ainsi obtenue est étendue et aplatie au moyen d'une règle longue et plate en exerçant une légère pression, afin de favo riser une liaison intime des constituants et. d'obtenir une surface uniforme et lisse.
Il y a lieu, en outre, de relever que la hale de riz, de par sa nature, est inattaquable par les parasites, insectes, ete., qualité encore amé liorée grâce au traitement préalable. La hale de riz n'absorbant pas l'eau par capillarité, les ouvrages établis avec un isolant thermo=acous- tique tel que décrit sont exempts de traces d'humidité.
Les essais ont démontré en outre que, pour un mélange renfermant du ciment Portland au dosage de 250 kg par m3 de baie de riz décapée, le coefficient de conductibilité ther mique est égal à 0,085. Pour un dosage de 200 kg par m3, ce coefficient est égal à 0,076 et pour -Lui dosage de 150 kg par m3, ce coefficient est égal à 0,067.
L'isolant thermo-acoustique fabriqué selon le procédé décrit trouve avantageusement son emploi dans l'édification de terrasses et toits plats.
Il convient également à la construction de chapes de planchers, en leur donnant les qualités d'un. bon isolement, tant au point de vue acoustique que thermique, notamment aux cloisons de constructions, ainsi qu'à toute a<B>a</B> utre édification devant remplir des condi- tions de ce genre.
A method of manufacturing a thermo-acoustic insulation and thermo-acoustic insulation obtained by this process. Coatings of building elements are known which serve as thermo-acoustic insulation. These coatings are generally made from cork, coconut fibers, glass silk, etc.
Most of the basic products which go into the composition of these coatings have the drawback of being expensive and liable to deteriorate over time.
It has been found that the waste from the husking of rice, known by the name of rice hale, could be treated in order to make it possible to agglomerate it with cement or other binders, in order to form a light, rot-resistant mass. ; exhibiting excellent thermal and sound insulation properties. Depending on the binder used, the insulation obtained is completely incombustible and non-flammable.
The present invention therefore relates to a method of manufacturing a thermo-acoustic insulation, based on rice husks, characterized in that rice husking waste is subjected to a prior pickling treatment to make their surface adhesive by putting update their microporous structure, then are agglomerated by means of a binder.
An embodiment of the process according to the present invention is as follows: The rice husking waste undergoes a preliminary treatment consisting in subjecting them to the action of a jet of turpentine under high pressure, in order to to remove the gloss from their surface and uncover the structure of their porous microscopic cells.
The purpose of this treatment is, moreover, to make possible their agglomeration by means of a binder, for example cement.
The rice haul thus treated is then agglomerated using a binder, for example cement or a mixture of cement and sand, a bituminous material or based on magnesia.
<B> 4 </B> To perfect the setting of the rice haul treated with the cement, you could add either clay or charcoal.
The invention also comprises the thermo-acoustic insulation obtained by the method defined above.
For example, this thermo-acoustic insulation can serve as an insulating coating screed for a concrete slab or a floor. Example <I> 1: </I>,.
Bitumen cardboard is placed on a concrete or brick slab on which a layer of pickled rice berry is applied, mixed with cement or another binder, as well as with a certain proportion of water, and the 'the whole is then covered with a cement mortar completing the floor screed.
<I> Example 2:, </I> The concrete or brick slab is sufficiently wetted, possibly adding a cement plaster. Then we put on the edges of the ball and. along the walls of the roofing felt which is folded in the form of a cornice. The space thus formed is filled with a layer of packed and strongly wet sand, then adding the pickled rice haul mixed with cement and water.
After hardening, the whole is covered with a distribution layer of cement mortar, in order to complete and smooth the floor. Example <I> 3: </I> In certain cases, for example for reasons of economy, it is also possible to proceed as in example 2, but removing the application of sand.
<I> Example </I> We put on the slab in. concrete or brick, a sheet of bitumen cardboard on which has been previously agglomerated rice hale pickled with turpentine and bitumen or any binder. Then apply a mixture composed of rice hale uncapped with turpentine; cement and water. Immediately after its application or after hardening, the whole is covered with a layer of cement, in order to ensure the distribution of the concentrated load and to complete the floor.
The resistance and the thermal efficiency of an insulation thus produced depend on the percentage of the binder, in this case cement, added to the pickled rice haul.
The mixture of the pickled rice haul, cement and water can be carried out either by hand or by means of a concrete mixer. The mass thus obtained is extended and flattened by means of a long and flat rule by exerting a slight pressure, in order to favor an intimate bond of the constituents and. obtain a uniform and smooth surface.
It should also be noted that rice haul, by its nature, is unassailable by parasites, insects, etc., a quality which is further improved thanks to the prior treatment. The rice haul does not absorb water by capillarity, the structures established with a thermo = acoustic insulation as described are free of traces of humidity.
The tests also demonstrated that, for a mixture containing Portland cement at a dosage of 250 kg per m3 of pickled rice berry, the thermal conductivity coefficient is equal to 0.085. For a dosage of 200 kg per m3, this coefficient is equal to 0.076 and for -He dosage of 150 kg per m3, this coefficient is equal to 0.067.
The thermo-acoustic insulation manufactured according to the process described advantageously finds its use in the construction of terraces and flat roofs.
It is also suitable for the construction of floor screeds, giving them the qualities of a. good insulation, both from an acoustic and thermal point of view, in particular on building partitions, as well as on any building having to meet conditions of this kind.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH310260T | 1953-06-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH310260A true CH310260A (en) | 1955-10-15 |
Family
ID=4494123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH310260D CH310260A (en) | 1953-06-29 | 1953-06-29 | A method of manufacturing a thermo-acoustic insulation and thermo-acoustic insulation obtained by this process. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH310260A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999006337A1 (en) * | 1997-07-30 | 1999-02-11 | Construction Research 2000 Ltd. | Composite materials |
-
1953
- 1953-06-29 CH CH310260D patent/CH310260A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999006337A1 (en) * | 1997-07-30 | 1999-02-11 | Construction Research 2000 Ltd. | Composite materials |
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