Composition for floor construction
SUBSTANCE: said utility invention relates to the construction material industry, in particular, to compositions for the construction of warm floors. The composition for floor construction contains the following components (% volume): gypsum 25-30; wooden sawdust 35-45; saturated water solution of potassium alum 15-20; paper cuttings 5-10 and rags 5-10 crushed to class. Sawdust of any wood, in any combinations; any paper cuttings and rags of any artificial or natural fabrics may be used for the floor composition.
EFFECT: decreased thermal conductivity of floors and increased moisture resistance.
1 cl, 1 tbl
The invention relates to the construction materials industry, in particular to compositions for the device warm floors.
Known composition for floors containing gypsum, sawdust, shredded fibrous material and an aqueous solution of potassium alum .
The objective of the invention is to increase the stability of the sexes to the action of moisture and reduce the heat floors.
The technical result is achieved in that the composition for floors containing gypsum, sawdust, shredded fibrous material and an aqueous solution of potassium alum, as the fibrous material is crushed to a particle size of not more than 10 mm scraps of paper and rags, and an aqueous solution of potassium alum is used as a saturated solution in the following ratio of components,% by volume: gypsum 25-30, sawdust 35-45; aqueous saturated solution of potassium alum 15-20; scraps of paper 5-10; rags 5-10.
In the composition can be used sawdust any wood in any combination, size 5 mm, including particles of bark. Scraps can be used any paper, including newspaper, cardboard, etc, crushed to a particle size of not more than 10 mm rags of any kind of artificial or natural fibers.
The preparation of the composition is illustrated by example.
Prepare taken equally birch and oak sawdust, scraps of paper, rags of cotton and acetate fibers. Prepare a water saturated solution of potassium alum. Spend the dosing of the components of the composition, for example, according to table 1.
|Components||Content,% by volume:|
|composition No. 1||composition No. 2||composition No. 3|
|Aqueous saturated solution of alum||20||of 17.5||15|
|Coefficient of softening||˜0,7||a-0.7||-0,75|
Sawdust mixed with scraps of paper and rags. Gypsum shut aqueous saturated solution of alum and mixed with sawdust, scraps of paper and rags. The resulting mass is applied to the mesh (nylon, wire), stretched over the surface on which the suit gender, media and compacted and smooth down. After 1 day warm floor is ready. The floor surface may be covered with paint, carpet, linoleum.
Composition for floors allows the use of sawdust any wood in any combination, any scraps of paper, rags from any artificial or natural fibers. thermal conductivity of the floors of the proposed composition by 15-20% lower than those of the sexes .
The source of information
1. GB No. 1375922 A, 1974.
Composition for floors containing gypsum, sawdust, shredded fibrous material and an aqueous solution of potassium alum, characterized in that the fibrous material it contains crushed to a particle size of not more than 10 mm scraps of paper and rags, and an aqueous solution of potassium alum is used as a saturated solution in the following ratio of components,%:
|aqueous saturated solution of alum||15-20|
FIELD: construction engineering, in particular, floor construction methods.
SUBSTANCE: method for building floors includes setting up beacons on base and applying porous building mixture onto base, as which construction compound foaming after being applied or foamed preliminarily is used. In first case, construction compound is applied onto base in form of layer, height of which after end of foaming exceeds height of beacons, sheet cover is placed onto beacons before beginning of foaming and is exposed until completion of foaming and precipitation of compound under effect from weight of cover. In second case, construction compound is applied onto base in form of layer, height of which exceeds height of beacons, after than onto layer of compound after its hardening sheet cover is placed and is exposed until completion of compound precipitation under effect from weight of cover. In case when construction compound applied onto base only performs function of tie for next sheet cover, it is recommended prior to placing to process sheets of cover with composition, increasing adhesion of sheet material to concrete; sheets of cover for provision of additional rigidity may be fastened to beacons and/or hardened layer of compound. In case of working conditions for premises allow concrete floor, sheet cover, after hardened construction compound accumulates hardness, is removed and used repeatedly at other sections. If construction compound applied to base performs function of tie for cover, different from one used during compound hardening, it is recommended to process sheets of cover prior to placement with composition decreasing adhesion of sheet material to concrete.
EFFECT: simplification of technological process.
2 cl, 6 ex
SUBSTANCE: invention can be used for filling cavities and surface levelling, particularly for concrete products. The filler mixture consists of the following mass percentages: 88.0-90.5% gypsum; 1.0-1.5% acrylamide polymer; 0.2-0.3% polyethylene glycol, 0.2-0.3 industrial lognosulphonate; 8.0-10% dust from cement production furnaces.
EFFECT: increased cohesion strength of the filler with concrete.
FIELD: manufacture of molds for casting ceramic articles.
SUBSTANCE: proposed raw material mix contains the following components, mass-%: gypsum, 50-70; palygorskite, 5-15; the remainder being water.
EFFECT: fast making of ceramic article walls in molds made from proposed mix.
FIELD: gypsum compositions and gypsum plates made from such compositions.
SUBSTANCE: proposed composition contains hardened gypsum, binding matrix made from hardened and calcined gypsum, water and modifying material containing mixture of organic poly- phosphonium compound or mixture of organic poly-phosphonium compounds in the amount of 0.01-3% of calcined gypsum and borate in the amount of 0.1-2% of mass of calcined gypsum containing ulexite, colemanite or mixture of ulexite and colemanite or modifying material containing poly-carboxyl compound or mixture of poly-carboxyl compounds in the amount of 0.01-4.99% of mass of calcined gypsum and poly-phosphate compound or mixture of poly-phosphate compounds in the amount of 0.004-2% of mass of calcined gypsum.
EFFECT: enhanced efficiency.
24 cl, 5 tbl
FIELD: manufacture of building materials; manufacture of wall structural materials.
SUBSTANCE: proposed raw mix contains ground technogenous calcium sulfate dehydrate at specific surface of 3000 cm2/g and 9000 cm2/g; saturated solution of slaked lime and additive - granulated polyvinyl alcohol. Components are contained at the following ratio, mass-%: gypsum at specific surface of 3000 cm2/g, 37.6-41.6; gypsum at specific surface of 9000 cm2/g, 46.4-50.4; polyvinyl alcohol, 0.167-0.5; saturated solution to the following content of components: slaked lime, 0.0135-0.019; the remainder being water.
EFFECT: enhanced strength of finished articles.
FIELD: manufacture of building materials, dry building mixes in particular; industrial and civil construction engineering for covering various internal surfaces of buildings.
SUBSTANCE: proposed dry building mix contains the following components, mass-%: according to first version -calcium sulfate of α- or β-form, 38-58; shungite sand of variety III, 40-60; hydrated lime, 2-4; modified additive, 0.23-0.37 including methyl cellulose, 0.10-0.12; starch ether, 0.1-0.2; tartaric acid, 0.03-0.05; according to second version - cement, 30-45; shungite sand, 50-65; hydrated lime, 2-4; dispersed powder on vinyl acetate and ethylene copolymer, 0.5-5; methyl cellulose, 0.02-0.4; according to third version - calcium sulfate, 40-60; shungite sand, 35-55; dispersed powder, 0.1-2; methyl cellulose, 0.2-0.4; according to fourth version - cement, 28-35; shungite sand, 65-72; dispersed powder, 2-5; methyl cellulose, 0.2-0.3. Shungite sand is used in fractions of from 0,2 to 0.63 mm.
EFFECT: improved adhesion, strength and binding properties of coat at retained low intensity of radiation passing through surface covered with this coat.
8 cl, 8 tbl
FIELD: construction engineering; production of gypsum and gypsum articles possessing water-repellent properties.
SUBSTANCE: proposed complex additive for hydrophobization of gypsum contains the following components, mass-%: sodium methyl siliconate, 29-32; sodium hexafluosilicate, 0.5-1.5; aluminum chloride, 4-6; the remainder being water.
EFFECT: enhanced moisture protective and mechanical properties; enhanced durability of products made from gypsum.
2 tbl, 1 ex
FIELD: paper-and-pulp industry.
SUBSTANCE: manufacture of gypsum cardboard with specified-size pores distributed within gypsum core comprises following stages: blowing air into foaming substance to form foamed liquid, mixing the latter with mixture containing burnt gypsum and water to form fluid gypsum flour, pouring the flour into space between upper and lower sheets of lining paper for gypsum cardboard, shaping lining paper and fluid gypsum flour as cardboard, roughly cutting cardboard material followed by drying, and cutting dried cardboard material according to size of supposed product. Method is characterized by that, in order to reduce size of pores distributed in foamed fluid gypsum flour, a special agent is added to one of the following materials: to mother solution of foaming substance or to mixture thereof with water, content of above agent in foaming substance corresponding to 0.00001-0.005 wt parts per 100 wt parts burnt gypsum. Disclosed is also a method of manufacturing gypsum cardboard using a pore-increasing agent.
EFFECT: enabled rapidly and al low cost controlling pore size within gypsum core of product when manufacturing products with high-strength core and excellent adhesion for lining paper.
5 cl, 8 dwg, 1 tbl, 4 ex
FIELD: construction engineering; manufacture of walls and facing items from gypsum.
SUBSTANCE: proposed method includes grinding the calcium sulfate dihydrate, tempering it and molding articles. Grinding is continued till obtaining poly-dispersed coarse and fine powders characterized by residue on sieve No.2 of 15-23% and up to 2%, respectively at ratio of average diameters of particles in coarse and fine powders D/d equal to 16; then, coarse and fine powders are mixed in dry form at ratio of 1:1.23 and mixture thus obtained is tempered by saturated lime solution till obtaining semi-dry mixture at moisture content of 14-16%; molding is performed by semi-dry method at pressure of 30-25 Mpa.
EFFECT: enhanced resistance to water; reduced power requirements.
4 dwg, 1 tbl, 1 ex
FIELD: manufacture of building materials.
SUBSTANCE: invention relates to foam gypsum materials used in manufacture of construction-destined heat insulation, light building parts (e.g. cores of layered wall panels), dry plaster, etc. Foam gypsum composition comprising, wt %: semiaquatic gypsum 39.4-51.4, quartz sand 0.6-20.4, foaming agent 0.1-0.7, and water (the balance) further contains orthophosphoric acid 0.6-1.3 and magnesium and/or aluminum silicate 0.6-9.5, wherein foaming agent is 1:1 mixture of synthetic surfactant and polyvinyl alcohol.
EFFECT: increased strength of hardened material and reduced drying time.
FIELD: coatings for products from gypsocard and their manufacture.
SUBSTANCE: the gypsocard with a coating applied onto it has: a gypsum core having the first side, second side and an outer sheet positioned on the first side, and a coating applied at least onto part of the external sheet, at least part of the coating penetrates at least through part of the external sheet to the gypsum core. The method for production of gypsocard with a coating includes: application of a gypsum suspension with production of damp gypsocard, having a gypsum core, application of coating onto the outer sheet of damp gypsocard and subsequent drying of the damp gypsocard, at least part of the coating penetrates at least through part of the outer sheet to the gypsum core. The method of wall production includes production of gypsocard with a coating in compliance with the mentioned for application of coating onto damp gypsocard, fastening of gypsocard with a coating on a supporting structure with production of a wall and application of adhesive tape and finishing of the joints between the adjoining sheets of gypsocard with coating with the use of a fastening agent, whose composition is essentially similar to the coating composition. The invention is developed in the species claims of the invention.
EFFECT: accelerated mounting and production of more durable finishing coatings, improved finished appearance of the finishing coating and reduced duration of production and reduced cost of it.
23 cl, 4 dwg, 1 ex, 3 tbl
FIELD: industry of construction materials, agricultural construction.
SUBSTANCE: the suggested arbolite mixture contains, weight%: cement 50-54; lime 10-14; gypsum 1-3; calcium chloride 4-6; chestnut-tree nuts subjected to thermal treatment at 120-170°C for 30-60 min excluding their biological activity 25-31, moreover, water-cement ratio corresponds to 0.6-0.8. The innovation enables to decrease volumetric weight of the obtained arbolite.
EFFECT: higher efficiency.
1 cl, 1 tbl
FIELD: construction engineering; manufacture of heat-insulating building materials for warmth-keeping of dwelling houses and industrial buildings, storehouses and hot liquid supply pipes; finishing materials possessing structural properties.
SUBSTANCE: proposed method includes hydrolysis of flaxen boon in aqueous solution of sodium hydroxide at concentration lesser than 5% and temperature of 280-300K at the following ratio of components, mass-%: dry flaxen boon, 15-17; aqueous solution of sodium hydroxide, 83-85; hydrolysis is continued for 1-12 hours; then, hydrolyzed flaxen boon is subjected to defibrination by forcing it between two similar shafts revolving in opposite directions at different angular velocities; these shafts are provided with straight longitudinal riffles and parallel axles mounted at spaced relation between maximum diameters of shafts for control of this clearance; ratio of shaft rotational speed is no less than 1.4; clearance between maximum diameters of shafts is 1-5 mm. Then, material is subjected to molding and drying.
EFFECT: facilitated procedure at retained strength properties of organic building material.
2 cl, 3 dwg, 1 tbl
FIELD: manufacture of building materials.
SUBSTANCE: sawdust concrete mix used preferably in agriculture is composed of, wt %: cement 48-52, coniferous tree cones 27-33, lime 10-14, gypsum 1-3, calcium chloride 4-6, said cones having been preliminarily subjected to heat treatment at 120-170°C in order to suppress their biological activity. Water/cement ratio in the mix is 0.6-0.8.
EFFECT: increased strength of products and achieved environmental appropriateness of mix.
FIELD: production of concrete or mortar on base of vegetable filler.
SUBSTANCE: proposed method consists in production of concrete or mortar on base of vegetable filler, mineral binder, non-hydrogenated fine-ground mineralizer and tempering water with the use of vegetable filler containing considerable amount of fibrous particles, 0 to 5 mm in diameter and 5 to 40 mm in length or lesser than 5 mm. Mineral binder is added to cubic meter of vegetable filler in the amount of 180 to 400 kg per vegetable filler. In tempering the concrete or mortar, non-hydrogenated fine-ground mineralizer is added in the amount of 4 to 14 kg per cubic meter of vegetable filler; ratio of mixture of mineralizer and tempering water is equal to 25-50 kg per 1000 kg of tempering water. Proposed method ensures enhanced heat insulation, sound absorption, tensile strength at bending and compressive strength.
EFFECT: facilitated procedure of production of concrete or mortar at low specific gravity of concrete or mortar and improved characteristics.
FIELD: manufacture of building materials.
SUBSTANCE: raw mix includes hydrolysis lignin in the form of grains, wood filler, binder including liquid soda glass, and additives. Filler contains hydrolysis lignin in the form of grains 1-15 mm in size, wood filler in the form of sawdust and cuttings 1-15 mm in size, and, additionally, soda glass powder. Binder additionally contains hydrolysis lignin powder with particle size 10-50 μm. Additives are butadiene-styrene latex SKS-65 GP and sodium silicofluoride. Following proportions of components are used, wt %: wood filler 18.9-27.0, hydrolysis lignin in the form of grains 8-10, soda glass powder 6-8, liquid soda glass 50.5-60.0, hydrolysis lignin in the form of powder 1-4, butadiene-styrene latex (as dry solids) 2-4, and sodium silicofluoride 0.1-0.5.
EFFECT: enhanced waterproofness and improved heat-insulation properties of articles.
FIELD: building industry and materials.
SUBSTANCE: invention relates to compositions of concrete mixtures used for making underground constructions, wall blocks, enclosing and self-carrying building constructions and making wall made of monolith concrete in low building. Concrete mixture comprising cement and buckwheat husk and ground as filling agents, additive and water involves also ground with natural moisture with particles of size 0.1 mm and the content of argillaceous particles 30%, not above, and superplasticizing agent C-3 as additive in the following ratio of components, mas. p. p.: cement, 1; indicated ground, 2-4; buckwheat husk, 0.6-1.0; superplasticizing agent C-3, 0.01, and water, 0.4-0.6. Invention provides reducing heat conductivity coefficient, sufficiently high strength, enhanced economy and ecological property of concrete.
EFFECT: improved and valuable properties of concrete.