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
Application number
Other languages
French (fr)
Inventor
Commerce Representatio Coregsa
Original Assignee
Commerce Representatio Coregsa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Commerce Representatio Coregsa filed Critical Commerce Representatio Coregsa
Publication of CH310260A publication Critical patent/CH310260A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00Use 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
    • C04B18/04Waste materials; Refuse
    • C04B18/18Waste materials; Refuse organic
    • C04B18/24Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork
    • C04B18/248Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper, cork from specific plants, e.g. hemp fibres
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00Use 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
    • C04B20/02Treatment
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10Building 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
    • E04C2/16Building 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
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use 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)

REVENDICATION I: Procédé de fabrication d'un isolant thermo-acoustique, à base de hale de riz, carac térisé en ce que des déchets de décortication du riz sont soumis à un traitement de déca page préalable pour rendre leur surface adhé sive en mettant à jour leur structure micro poreuse, puis sont agglomérés au moyen d'un liant. SOUS-REVENDICATIONS 1. CLAIM I: A method of manufacturing a thermo-acoustic insulation, based on rice haul, characterized in that the rice husk waste is subjected to a prior decaying treatment to make their surface adherent by setting up day their microporous structure, then are agglomerated by means of a binder. SUB-CLAIMS 1. Procédé selon la revendication I, caracté- risé en ce que le liant utilisé en vue de l'agglo mération de la hale de riz décapée est consti tué par un .liant minéral. 2. Procédé selon la revendication I, carac térisé en ce que le liant utilisé en vue de l'agglomération de la hale de riz décapée est du ciment. 3. Process according to Claim 1, characterized in that the binder used for the agglomeration of the pickled rice haul consists of an inorganic binder. 2. Method according to claim I, charac terized in that the binder used for the agglomeration of the pickled rice haul is cement. 3. Procédé selon la revendication I, carac térisé en ce que le liant utilisé en vue de l'agglomémation de la hale de riz décapée est u n mélange de ciment et de sable. 4. Procédé selon la revendication I, carac térisé en ce que le liant utilisé en vue de l'agglomération de la hale de riz décapée est du bitume. REVENDICATION II: Isolant thermo-acoustique, â base de baie de riz; obtenu par le procédé selon la reven dication I. SOUS-R,EVENDICATIONS 5. Process according to Claim I, characterized in that the binder used for the agglomeration of the pickled rice haul is a mixture of cement and sand. 4. Method according to claim I, charac terized in that the binder used for the agglomeration of the pickled rice haul is bitumen. CLAIM II: Thermo-acoustic insulation, based on rice berry; obtained by the process according to claim I. SUB-R, EVENDICATIONS 5. Isolant thermo-acoustique selon la reven dication II, caractérisé en ce qu'il se présente sous la forme d'un bloc. 6. Isolant thermo-acoustique selon la reven dication II, caractérisé en ce qu'il se présente sous la forme d'une chape de revêtement d'une dalle. Thermo-acoustic insulation according to claim II, characterized in that it is in the form of a block. 6. Thermo-acoustic insulation according to claim II, characterized in that it is in the form of a covering screed for a slab.
CH310260D 1953-06-29 1953-06-29 A method of manufacturing a thermo-acoustic insulation and thermo-acoustic insulation obtained by this process. CH310260A (en)

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

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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.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999006337A1 (en) * 1997-07-30 1999-02-11 Construction Research 2000 Ltd. Composite materials

Cited By (1)

* Cited by examiner, † Cited by third party
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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