FR2462406A1 - Lightweight concrete panels for heat and sound insulation - made from expanded cork granules, cement, and aq. emulsion of elastomer resin - Google Patents

Lightweight concrete panels for heat and sound insulation - made from expanded cork granules, cement, and aq. emulsion of elastomer resin Download PDF

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Publication number
FR2462406A1
FR2462406A1 FR7920257A FR7920257A FR2462406A1 FR 2462406 A1 FR2462406 A1 FR 2462406A1 FR 7920257 A FR7920257 A FR 7920257A FR 7920257 A FR7920257 A FR 7920257A FR 2462406 A1 FR2462406 A1 FR 2462406A1
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FR
France
Prior art keywords
cement
emulsion
resin
panels
expanded cork
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7920257A
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French (fr)
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FR2462406B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JEANLAURENT JEAN PIERRE
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JEANLAURENT JEAN PIERRE
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 JEANLAURENT JEAN PIERRE filed Critical JEANLAURENT JEAN PIERRE
Priority to FR7920257A priority Critical patent/FR2462406A1/en
Publication of FR2462406A1 publication Critical patent/FR2462406A1/en
Application granted granted Critical
Publication of FR2462406B1 publication Critical patent/FR2462406B1/fr
Granted legal-status Critical Current

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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
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions 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
    • 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

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  • 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)
  • Building Environments (AREA)

Abstract

The material consists of grains of expanded cork bonded by a concrete formed by cement and moistened with the aid of an emulsion (I) of a natural or synthetic elastomer resin (Ia). The concrete surrounds each grain or granule of cork to form a mass of low density, which is moulded into a desired shape, esp. to make panels. The panels are pref. made by placing dry expanded cork granules in a mixer together with twice their wt. of cement. After homogeneous mixing, an aq. emulsion (I) contg. 20% of resin (Ia) is added, followed by moulding. Used esp. to make rigid panels with density 400-800 kg/cu.m.; compression strength above 20 kg/sq.cm; and a coefft. of heat transfer below 0.5 for a panel 30 cm thick.

Description

La présente invention a pour objet un matériau isolant présentant une résistance élevée , bien que constitué d'un béton de faible densité
II est connu que des panneaux isolants sont constitués de gra nulés de liège agglomérés . Ceux-ld sont généralement obtenus par agglo aération des granulés de liège au moyen d'un liant à base de brai . Un tel moyen a pour inconvénient important de ne présenter qu'une faible résistance à la flexion et à la pression, ainsi que d'être sensible à une faible élévation de température , si bien que de tels panneaux ne sont jamais utilisés seuls .Même en position verticale ils doivent toujours être accolés à une paroi rigide sur au moins une de leurs faces pour leur servir de support
La présente invention a pour but d'éviter cet inconvénient en créant un panneau de liège aggloméré qui, bien que présentant un très faible coefficient de transmission de la chaleur et du bruit , présente une rigidité suffisante pour permettre sa manipulation sur chantier sans précaution spéciale et pour permettre son utilisation en construction sans aucun support intermédiaire , accolé ou non, ce qui diminue considérablement le coût d'exploitation de ce matériau nouveau, qui offre par ailleurs l'avantage d'une insensibilité aux variations de température dans l'échelle des températures naturelles
Pour cela le liant utilisé pour l'agglomération des granulés de liège est un mélange de ciment et de résine élastomère synthétique , ce qui confère aux panneaux ainsi constitués, en même temps qu'une grande légèreté et une bonne isolation thermique et acoustique , une bonne rigidité à la pression dûe à la présence de l'enrobage de ciment lié cependant à une certaine flexibilité que lui confère l'élastomère, ce qui réduit considérablement la fragilité de ses panneaux en cours de manutention
Pour obtenir un tel résultat les granulés de liège expansé secs sont placés dans un mélangeur avec un poids de ciment artificiel double du poids de liège à traiter . Et on procède au mélange intime de ces
deux composants
Lorsque le mélange est ainsi obtenu de façon suffisamment
homogène on introduit dans le mélangeur une émulsion aqueuse de résine
élastomère synthétique ou naturelle , titrant 20% de résine .Cette émul
sion aqueuse est introduite dans le mélangeur , le brassage étant entretenu,
jusqu'd ce que sur la masse homogène encore ferme apparaisse une légère
mousse
Le mélange ainsi obtenu est aussitôt versé dans des moules
préalablement enduits si nécessaire d'un agent démoulant , puis vibré et
abandonné au séchage . On peut obtenir ainsi soit des cairons > soit des panneaux rigides, d'une densité comprise entre 400 et 800 K/m3 environ, présentant une grande résistance à ltécrasement qui dépasse largement 20 Kg/cm2 et qui, sous une épaisseur de 30 cm , présente un coefficient de transmission calorifique inférieur à 0,5
En outre grâce à la présence du ciment un tel matériau autorise l'accrochage d'un enduit de platre aussi bien que d'un enduit de résine polyester .De sorte qu'il est prévu d'enduire la face extérieure des panneaux et leur chant de résine polyester armé de fibres de verre qui contribue à augmenter sa résistance à la rupture et assure son imperméabilité même à travers la résille formée par l'aggloméré . Et sa face intérieure est enduite d'une couche de plâtre qui assure la finition et permet la pose de tout parement décoratif qui adhère facilement à l'enduit de plâtre ainsi déposé.
The present invention relates to an insulating material having a high resistance, although consisting of a low density concrete
It is known that insulating panels are made up of agglomerated cork grains. These are generally obtained by agglo aeration of the cork granules using a binder based on pitch. Such a means has the significant drawback of exhibiting only a low resistance to bending and of pressure, as well as being sensitive to a slight rise in temperature, so that such panels are never used alone. vertical position they must always be attached to a rigid wall on at least one of their faces to serve as a support
The present invention aims to avoid this drawback by creating an agglomerated cork panel which, although having a very low coefficient of transmission of heat and noise, has sufficient rigidity to allow its handling on site without special precautions and to allow its use in construction without any intermediate support, attached or not, which considerably reduces the operating cost of this new material, which also offers the advantage of insensitivity to temperature variations in the temperature scale natural
For this, the binder used for the agglomeration of cork granules is a mixture of cement and synthetic elastomer resin, which gives the panels thus formed, at the same time a great lightness and good thermal and acoustic insulation, good pressure stiffness due to the presence of the cement coating, however linked to a certain flexibility which the elastomer gives it, which considerably reduces the brittleness of its panels during handling
To obtain such a result, the dry expanded cork granules are placed in a mixer with a weight of artificial cement double the weight of cork to be treated. And we proceed to the intimate mixing of these
two components
When the mixture is thus obtained sufficiently
homogeneous an aqueous resin emulsion is introduced into the mixer
synthetic or natural elastomer, grading 20% resin.
aqueous sion is introduced into the mixer, the stirring being maintained,
until a slightly firm homogeneous mass appears
foam
The mixture thus obtained is immediately poured into molds
previously coated with a release agent if necessary, then vibrated and
abandoned on drying. It is thus possible to obtain either cairons> or rigid panels, with a density of between 400 and 800 K / m 3 approximately, having a high resistance to crushing which largely exceeds 20 Kg / cm 2 and which, under a thickness of 30 cm, has a heat transfer coefficient less than 0.5
In addition, thanks to the presence of cement, such a material allows the attachment of a plaster coating as well as a coating of polyester resin. So that provision is made to coat the outer face of the panels and their edges. of polyester resin reinforced with glass fibers which contributes to increase its resistance to breakage and ensures its impermeability even through the mesh formed by the chipboard. And its inner face is coated with a layer of plaster which ensures the finish and allows the installation of any decorative facing which easily adheres to the plaster coating thus deposited.

Il est ainsi constitué, sous forme de panneau, un matériau qui peut être utilisé sans support juxtaposé, comme remplissage d'ossature d'immeuble, constituant ainsi, sans autre opération, l'édification de parois comportant d'origine leur couche de finition intérieure et extérieure , et présentant les qualités élevées d'isolant acoustique et thermique
Il est bien entendu que l'étendue de l'invention n'est pas limitée à l'exemple ou aux exemples qui en ont été décrits, toute variante considérée comme équivalence ne pouvant en modifier la portée
C'est ainsi que tout autre parement intérieur ou extérieur peut être appliqué au matériau de base ainsi constitué , qui peut être mê- me utilisé nu de tout parement extérieur, si cela est jugé utile
L 'invèntion peut être utilisée pour la construction rapide d'immeubles présentant une bonne isolation, par inclusion dans une ossature dont lesdits panneaux forment le remplissage . Elle peut aussi être utilisée en combinaison plus complexe en vue de constituer des panneaux à haut coefficient d'isolation
It is thus made up, in the form of a panel, of a material which can be used without juxtaposed support, as a filling of the frame of a building, thus constituting, without other operation, the construction of walls having their original interior finishing layer. and exterior, and having the high qualities of acoustic and thermal insulation
It is understood that the scope of the invention is not limited to the example or examples which have been described therein, any variant considered to be equivalent cannot modify its scope.
This is how any other interior or exterior facing can be applied to the base material thus formed, which can even be used naked from any exterior facing, if this is deemed useful.
The invention can be used for the rapid construction of buildings with good insulation, by inclusion in a framework of which said panels form the filling. It can also be used in a more complex combination to form panels with a high coefficient of insulation.

Claims (1)

REVENDICATIONS 1 ) - Matériau constitué d'un béton de faible densité Caractérisé par le fait qu'il est constitué par des granulés de liège expansé liés par un béton formé de ciment et mouillé à l'aide d'une emulsion de résine élastomère synthétique ou naturelle, ledit béton enrobant chacun desdits granulés et formant ensemble une masse de faible densité qui est moulée selon les formes désirées et particulièrement selon la forme de panneau.CLAIMS 1) - Material made of low density concrete Characterized by the fact that it consists of expanded cork granules linked by a concrete formed of cement and wetted using an emulsion of synthetic elastomeric resin or natural, said concrete coating each of said granules and together forming a low density mass which is molded according to the desired shapes and particularly according to the shape of the panel. 20) - Procédé de fabrication de panneau conforme à la revendication 1, 20) - A method of manufacturing a panel according to claim 1, Caractérisé par le fait que les granulés de liège expansé sont introduits secs dans un mélangeur et brassés avec le double de leur poids de ciment jusqu'à obtention d'un mélange homogène , qui est alors mouillé au cours d'un brassage continu avec une émulsion aqueuse de résine élastomère synthétique ou naturelle titrant 20% de ladite résine qui est introduite en quantité suffisante pour obtenir une masse homogène, légèrement moussante, mais ferme, ledit matériau ainsi constitué étant introduit dans les moules adéquats préalablement enduits d'un agent démoulant et vibré, puis abandonné jusqu'à prise et séchage complets Characterized by the fact that the expanded cork granules are introduced dry into a mixer and brewed with twice their weight of cement until a homogeneous mixture is obtained, which is then wetted during continuous brewing with an emulsion aqueous synthetic or natural elastomer resin titrating 20% of said resin which is introduced in sufficient quantity to obtain a homogeneous, slightly foaming, but firm mass, said material thus constituted being introduced into the appropriate molds previously coated with a release agent and vibrated , then abandoned until completely set and dry
FR7920257A 1979-08-03 1979-08-03 Lightweight concrete panels for heat and sound insulation - made from expanded cork granules, cement, and aq. emulsion of elastomer resin Granted FR2462406A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7920257A FR2462406A1 (en) 1979-08-03 1979-08-03 Lightweight concrete panels for heat and sound insulation - made from expanded cork granules, cement, and aq. emulsion of elastomer resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7920257A FR2462406A1 (en) 1979-08-03 1979-08-03 Lightweight concrete panels for heat and sound insulation - made from expanded cork granules, cement, and aq. emulsion of elastomer resin

Publications (2)

Publication Number Publication Date
FR2462406A1 true FR2462406A1 (en) 1981-02-13
FR2462406B1 FR2462406B1 (en) 1985-04-26

Family

ID=9228703

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7920257A Granted FR2462406A1 (en) 1979-08-03 1979-08-03 Lightweight concrete panels for heat and sound insulation - made from expanded cork granules, cement, and aq. emulsion of elastomer resin

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FR (1) FR2462406A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2618821A1 (en) * 1987-07-27 1989-02-03 Grisard Paul Insulating panels for external surfaces based mainly on cork, cement and resin

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB487101A (en) * 1937-06-11 1938-06-15 Georg Schuster Constructional material and method of manufacturing same
FR1064304A (en) * 1952-10-11 1954-05-12 New material and its applications
FR1279335A (en) * 1960-11-07 1961-12-22 Metallisation Du Sud Ouest Material for making sound insulation screeds
FR2291167A1 (en) * 1973-12-04 1976-06-11 Home Alexandre Coated cork granulate for thermal and sound insulation - used to make light components for building construction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB487101A (en) * 1937-06-11 1938-06-15 Georg Schuster Constructional material and method of manufacturing same
FR1064304A (en) * 1952-10-11 1954-05-12 New material and its applications
FR1279335A (en) * 1960-11-07 1961-12-22 Metallisation Du Sud Ouest Material for making sound insulation screeds
FR2291167A1 (en) * 1973-12-04 1976-06-11 Home Alexandre Coated cork granulate for thermal and sound insulation - used to make light components for building construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2618821A1 (en) * 1987-07-27 1989-02-03 Grisard Paul Insulating panels for external surfaces based mainly on cork, cement and resin

Also Published As

Publication number Publication date
FR2462406B1 (en) 1985-04-26

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