FR2542308A1 - Ready-for-use plaster for the production of coatings or of expanded plaster products - Google Patents

Ready-for-use plaster for the production of coatings or of expanded plaster products Download PDF

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Publication number
FR2542308A1
FR2542308A1 FR8303765A FR8303765A FR2542308A1 FR 2542308 A1 FR2542308 A1 FR 2542308A1 FR 8303765 A FR8303765 A FR 8303765A FR 8303765 A FR8303765 A FR 8303765A FR 2542308 A1 FR2542308 A1 FR 2542308A1
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France
Prior art keywords
plaster
water
agent
plaster according
ready
Prior art date
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Granted
Application number
FR8303765A
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French (fr)
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FR2542308B1 (en
Inventor
Raymond Bois
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Individual
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Individual
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Publication date
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Priority to FR8303765A priority Critical patent/FR2542308B1/en
Publication of FR2542308A1 publication Critical patent/FR2542308A1/en
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Publication of FR2542308B1 publication Critical patent/FR2542308B1/en
Expired legal-status Critical Current

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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
    • C04B28/14—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 calcium sulfate cements

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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)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

Ready-for-use plaster. This plaster consists of a pulverulent dry mixture which comprises a major proportion of plaster and which comprises a minor proportion of a pulverulent swelling agent, a powdered hardener and a powdered thickening and water-retaining agent. The invention applies to the production of coatings or products made of expanded plaster.

Description

L'invention concerne un plâtre prêt à l'emploi. The invention relates to a ready-to-use plaster.

Elle vise à fournir un plâtre prêt à l'emploi pour la réalisation de plâtre expansé, notamment pour la projection, par exemple pour réaliser un revêtement en plâtre expansé anti-feu sur une paroi, ou pour la coulée, par exemple pour réaliser des carreaux légers en plâtre expansé. It aims to provide a ready-to-use plaster for the production of expanded plaster, in particular for projection, for example for making a coating of expanded fire-resistant plaster on a wall, or for casting, for example for making tiles. lightweight expanded plaster.

Le plâtre prêt à l'emploi de l'invention est un mélange sec pulvérulent qui comporte une proportion majeure de plâtre et, selon l'invention, une proportion mineure d'un agent gonflant pulvérulent, d'un durcisseur en poudre et d'une poudre d'un agent d'épaississement et de retenue d'eau. The ready-to-use plaster of the invention is a dry powdery mixture which comprises a major proportion of plaster and, according to the invention, a minor proportion of a pulverulent blowing agent, of a powder hardener and of a powder of a water thickening and retaining agent.

Ce mélange est conservé en sac comme du plâtre au moment de l'emploi, il suffit de gâcher le mélange avec de l'eau, de façon en soi connue. This mixture is kept in a bag like plaster at the time of use, it suffices to mix the mixture with water, in a manner known per se.

Le plâtre gâché est soit projeté, soit coulé. The tempered plaster is either projected or poured.

Il gonfle et gélifie rapidement mais il durcit lentement, les temps de gonflage et de durcissement dépendant des proportions des additifs. It swells and gels quickly but it hardens slowly, the inflation and hardening times depending on the proportions of the additives.

EXEMPLE
On réalise le mélange sec suivant
Plâtre 1 kg
Acide cristallisé 15 -50 g
Colle animale ou résine
synthétique tydrosoluble 20-1 O? g
Tylose 2 -10 g
ou pulvérulent de cellulose 10 -50 g
Le mélange est facile à réaliser, les additifs pouvant être ajoutés individuellement au plâtre (suivant un ordre indifférent) ou mélangés entre eux puis ajoutés ensemble au plâtre. EXAMPLE
The following dry mixing is carried out
Plaster 1 kg
Crystallized acid 15 -50 g
Animal glue or resin
water-soluble synthetic 20-1 O? g
Tylose 2 -10 g
or cellulose powder 10 -50 g
The mixing is easy to perform, the additives can be added individually to the plaster (in any order) or mixed together and then added together to the plaster.

Tous les plâtres conviennent, mais on utilise de préférence un plâtre de Charente qui réagit plus rapidement qu'un plâtre de la région parisienne. All plasters are suitable, but preferably a plaster from Charente which reacts faster than a plaster from the Paris region.

L'acide cristallisé qui constitue l'agent gonflant est de préférence l'acide oxalique ou l'acide citrique. The crystallized acid which constitutes the swelling agent is preferably oxalic acid or citric acid.

La colle animale est de préférence une colle de poisson. Comme résine synthétique hydrosoluble, on utilise en particulier des granulés de résine urée formol ou de résine phénolique, ces résines étant rapidement hydrosolubles. On peut utiliser d'autres durcisseurs, par exemple la gomme arabique. The animal glue is preferably a fish glue. As water-soluble synthetic resin, granules of urea formaldehyde resin or phenolic resin are used in particular, these resins being rapidly water-soluble. Other hardeners can be used, for example gum arabic.

L'agent de tenue d'eau, habituellement utilisé pour allonger les temps de prise et éviter les remontées d'eau en surface, agit pour éviter que le poids d'eau ne fasse retomber la masse gachée, favorisant de façon essentielle l'expansion. On utilise de préférence la Tylose VFL 6002 (Marque commerciale de Hoechst) très rapidement soluble dans les mélanges en poudre et utilise sable en doses très réduites. On peut utiliser d'autres agents de retenue d'eau, par exemple de la farine de bois. The water-holding agent, usually used to lengthen setting times and prevent water from rising to the surface, acts to prevent the weight of water from causing the spoiled mass to fall back, essentially promoting expansion. . Tylose VFL 6002 (trademark of Hoechst) is preferably used very quickly soluble in powder mixtures and sand is used in very reduced doses. Other water retaining agents can be used, for example wood flour.

Ces additifs sont préférés mais l'invention n'est pas limitée à ces exemples. These additives are preferred, but the invention is not limited to these examples.

En outre, le plâtre peut contenir d'autres charges pulvérulentes sèches, par exemple un accélérateur ou un retardateur de prise, de déchets de végétaux, etc...  In addition, the plaster may contain other dry powdery fillers, for example an accelerator or a retarder for setting, plant waste, etc.

Claims (9)

REVENDICATIONS 1. Plâtre prêt à l'emploi constitué par un mélange sec pulvérulent qui comporte une proportion majeure de plâtre et qui comporte une proportion mineure d'un agent gonflant pulvérulent, d'un durcisseur en poudre et d'une poudre d'un agent d'épaississement et de retenue d'eau.1. Ready-to-use plaster consisting of a dry pulverulent mixture which comprises a major proportion of plaster and which comprises a minor proportion of a pulverulent blowing agent, of a hardener in powder and of a powder of an agent thickening and water retention. 2. Plâtre selon la revendication 1, caractérisé en ce que l'agent gonflant est un acide cristallisé.2. Plaster according to claim 1, characterized in that the swelling agent is a crystallized acid. 3. Plâtre selon la revendication 2, caractérisé en ce que l'agent gonflant est l'acide-oxalique ou citrique.3. Plaster according to claim 2, characterized in that the swelling agent is oxalic or citric acid. 4. Plâtre selon l'une des revendications 1 à 3, caractérisé en ce que le durcisseur est une colle animale.4. Plaster according to one of claims 1 to 3, characterized in that the hardener is an animal glue. 5. Plâtre selon l'une des revendications 1 à 3, caractérisé en ce que le durcisseur est une résine synthétique hydrosoluble.5. Plaster according to one of claims 1 to 3, characterized in that the hardener is a water-soluble synthetic resin. 6. Plâtre selon l'une des revendications 1 à 5, caractérisé en ce que l'agent d'épaississement et de retenue d'eau est un pulvérulent de cellulose.6. Plaster according to one of claims 1 to 5, characterized in that the thickening and water-retaining agent is a cellulose pulverulent. 7. Plâtre selon l'une des revendications 1 à 5, caractérisé en ce que l'agent d'épaississement et de retenue d'eau est la Tylôse. 7. Plaster according to one of claims 1 to 5, characterized in that the agent for thickening and retaining water is Tylose. 8. Plâtre selon la revendication 1, caractérisé en ce que le mélange comporte î à 50 g d'acide oxalique ou citrique cristallisé, 20 à 100 g de colle animale ou d'une résine synthétique hydrosoluble.8. Plaster according to claim 1, characterized in that the mixture comprises î to 50 g of crystallized oxalic or citric acid, 20 to 100 g of animal glue or of a water-soluble synthetic resin. 9. Plâtre selon la revendication 8, caractérisé en ce que le mélange contient 2-10 g de Tylose. 9. Plaster according to claim 8, characterized in that the mixture contains 2-10 g of Tylose.
FR8303765A 1983-03-08 1983-03-08 READY-TO-USE PLASTER FOR THE PRODUCTION OF COATINGS OR PRODUCTS IN EXPANDED PLASTER Expired FR2542308B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8303765A FR2542308B1 (en) 1983-03-08 1983-03-08 READY-TO-USE PLASTER FOR THE PRODUCTION OF COATINGS OR PRODUCTS IN EXPANDED PLASTER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8303765A FR2542308B1 (en) 1983-03-08 1983-03-08 READY-TO-USE PLASTER FOR THE PRODUCTION OF COATINGS OR PRODUCTS IN EXPANDED PLASTER

Publications (2)

Publication Number Publication Date
FR2542308A1 true FR2542308A1 (en) 1984-09-14
FR2542308B1 FR2542308B1 (en) 1987-04-03

Family

ID=9286607

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8303765A Expired FR2542308B1 (en) 1983-03-08 1983-03-08 READY-TO-USE PLASTER FOR THE PRODUCTION OF COATINGS OR PRODUCTS IN EXPANDED PLASTER

Country Status (1)

Country Link
FR (1) FR2542308B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6162839A (en) * 1995-12-20 2000-12-19 Henkel Kommanditgesellschaft Auf Aktien Composition for producing light plaster, production of the foaming agent used therefor and its use

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1414274A (en) * 1963-11-11 1965-10-15 Ici Ltd Light plasters
FR1447298A (en) * 1965-06-14 1966-07-29 Improvement in thermal insulation processes for all constructions and roofs
FR2335464A1 (en) * 1975-12-16 1977-07-15 Bois Simone Plaster compsn. contg. sulphuric and phosphoric acids - as pore former and hardener
FR2362797A2 (en) * 1976-08-26 1978-03-24 Bois Simone Plaster compsn. contg. oxalic acid - as porophore and hardener

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1414274A (en) * 1963-11-11 1965-10-15 Ici Ltd Light plasters
FR1447298A (en) * 1965-06-14 1966-07-29 Improvement in thermal insulation processes for all constructions and roofs
FR2335464A1 (en) * 1975-12-16 1977-07-15 Bois Simone Plaster compsn. contg. sulphuric and phosphoric acids - as pore former and hardener
FR2362797A2 (en) * 1976-08-26 1978-03-24 Bois Simone Plaster compsn. contg. oxalic acid - as porophore and hardener

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6162839A (en) * 1995-12-20 2000-12-19 Henkel Kommanditgesellschaft Auf Aktien Composition for producing light plaster, production of the foaming agent used therefor and its use

Also Published As

Publication number Publication date
FR2542308B1 (en) 1987-04-03

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