(57) Abstract:Scope: production of construction materials for industrial and civil construction. The inventive polymer composition comprises, in wt.%: cement 13,4 - to 49.9; aqueous dispersion of a polymer synthetic latex selected from the group comprising butadiene, the best choice on BNR, isoprene rubber, butyl rubber, 1,79 - 14,71; wood chips with a moisture content of 50 10% 0,6 - 19,73; quartz sand 5,6 - 39,9; sawdust with a moisture content of 50 10% 0,62 - 11,44; water the rest. The resulting material has a volumetric weight of about 740 kg/m3the limit of compressive strength to 14.56 MPa, elongation and compression to 26.2%, a modulus of elasticity of up to 40.0 MPa, water absorption when immersed for 24 h to 5.2%. table 1. The invention relates to construction materials and can be used in industrial and civil construction.Famous composition comprising cement, water, and vegetable fiber as a filler, which is pre-treated in hot bitumen or tar to make them chemical inertness.Known also use as fillers in cement slabs, this chipboard with the use of PVC is not suitable for internal furnish of premises, as under the influence of heat, sunlight and mechanical damage in PVC are processes of destruction. The decomposition products of PVC, as well as perchloric acid, benzene, chlorinated organic compounds that pollute the environment.The invention is directed to the development of easy, cheap composite material with improved durability, hygienic and thermal insulation properties.The technical result, which can be obtained by carrying out the invention is the economic effect from the use of cheap material in building constructions and cost reduction in production due to the reduction of their weight.This is achieved according to the invention, by the fact that polymer composition comprising cement, water dispersion of polymer, wood chips and water, contains as an aqueous dispersion of synthetic polymer latex selected from the group comprising butadiene, the best choice on BNR, isoprene rubber, butyl rubber, wood chips with a moisture content 5010% and additionally quartz sand, sawdust humidity 5010% in the following ratio, wt.%: Cement 13,4-to 49.9
The specified water dis - ne is Ki humidity 5010% 0,62-11,44 Water the Rest
As polymer additives used are water dispersions (latexes) butyl rubber, on BNR, butadiene - styrene, butadienestyrene, butadiene and isoprene rubbers; as a filler is a mixture of wood chips sawdust and quartz sand, which is injected together with the cement in the form of 50-70% solution in water.Thanks to the use of the composition of non-toxic, resistant components of the proposed material has good hygienic properties that can be used in residential areas. The use of such light and friable filler, as sawdust and shavings, leads to a decrease of the bulk density of the material. Using the 4 fractions of filler (cement, sand, sawdust, shavings), significantly different particle sizes, provides the strength properties of the material, enough to use it not only for thermal insulation in the form of plates, but in the form of blocks for curtain designs. Low cost polymer composition due to the fact that the material consists of a significant amount of quartz sand and waste wood processing enterprises in the form of chips and sawdust. The disposal of these companies is ment simple, not require a significant investment and development of new equipment.The combination of these signs provides high economic impact during its implementation.Information confirming the possibility of implementation of the proposed invention, is shown in the examples of implementation.When production samples are used sawdust and shavings with their content of moisture 505%, you may want to moisturize the specified value. Latex rubbers, the following amounts (in terms of dry substance) is introduced into sawdust and shavings and mix with them. Cement and sand in the form of concentrated solution is injected into the sawdust and shavings and mix thoroughly. Received loose weight give the desired shape under a pressure of 10-30 kg/cm2.The following is the composition and properties (table) examples of implementation.Water, which is involved in the process, as a component in the formula does not take into account, as partially squeezed in the process of pressing, and then it evaporates from the product during its curing.P R I m e R 1.Cement (Portland cement of grade M-150) 49,90 Quartz sand 5,62 Wood chips to 11.79 Drew
P R I m m e R 2.Cement (Portland cement of grade M-400) 13,40 Quartz sand 40,17 Wood chips to 10.09 sawdust 4,94
oxidation of sulfhydryl rubber
SKN-40P armored ground attack aircraft with a dry matter content of 40% 6,55 Water 24,85
P R I m e R 3. Cement (Portland cement of grade M-150) 16,18 Quartz sand 31,12 Wood chips 13,50 sawdust 4,36 Latex butadiene - oxidation of sulfhydryl rubber SKN-40P armored ground attack aircraft with a dry matter content of 42% 3,09 Water 31,75
P R I m e R 4. Cement (Portland cement of grade M-150) 17,98 Quartz sand 33,09 Wood chips 9,35 sawdust 9,35 Latex butadiene - roll rubber SKS-HP with the content of dry matter 30% 1,79 Water 28,44
P R I m e R 5. Cement (Portland cement type M-300) 41,29 Quartz sand EUR 7.57 Wood chips 0,60 sawdust 11,44 Latex butadiene rubber SKD-1 with the content - the content of dry substances - VA 45% 14,71 Water 24,39
P R I m e R 6. Cement (Portland cement of grade M-150) 31,25 Quartz sand 18,75 Wood chips br4.61 sawdust 4.6 butyl rubber Latex with - holding of dry weight allocated 40% 3,15 Water 37,64
P R I m e R 7. Cement (Portland cement of grade M-150) 32,09 Quartz sand 5,62 Wood chips 19,73 sawdust 4,13 Latex polyisoprene - new rubber SCM-3 content dry NOTICE, including cement, water dispersion of polymer, wood chips and water, characterized in that it contains as an aqueous dispersion of synthetic polymer latex selected from the group comprising butadiene, the best choice on BNR, isoprene rubber, butyl rubber, wood chips with a moisture content of 50 10% and additionally quartz sand, sawdust with a moisture content of 50 to 10% in the following ratio, wt.%:
Cement - 13,4 - to 49.9
Specified aqueous dispersion of polymer - 1,79 - 14,71
Wood chips with a moisture content of 50 10% - 0,6 - 19,73
Quartz sand - 5,62 - 40,17
Sawdust with a moisture content of 50 10% - 0,62 - 11,44
Water - The Rest
FIELD: building materials industry; production of building materials on the basis of peat-wood raw.
SUBSTANCE: the invention is pertaining to the field of production of building materials and may be used at manufacture of plates, blocks, shells for the heat insulation of residential and industrial buildings and the industrial equipment. The peat-wood composition used for manufacture of the heat-insulating building materials contains (in mass %): in the capacity of the binding material - the dispersed low peat - 20.5-28.5, the saw dust as the filler - 61-73, the waterproofing additive - 3.0-5.0 and the foaming agent - 3.5-6.5 at the water-solid ratio of 2.0-2.4. The technical result: production of the water-repellant homogeneous building material with the low density and the low thermal conductivity.
EFFECT: the invention ensures production of the water-repellant homogeneous building material with the low density and the low thermal conductivity.
FIELD: composition of molding mixes; manufacture of fire -resistant heat-insulating materials for construction engineering.
SUBSTANCE: proposed composition contains the following components, mass-%: water soda glass at silicate modulus of 2.9-3 and density of 1300-1350 kg/m3, 31.03-31.95; ferro-chromium low-carbon slaking slag at specific surface not below 220 m2/kg, 58.00-59.70; broken lime-and-sand brick in form of finely ground powder at specific surface of 1800-2000 m2/kg, 7.50-8.50; cellulose micro-fiber Grade BE 600/30 PU, firm "ARBOCEL", 0.21-0.33; goethite, 1.081.20; superplasticizing agent C-3 of Vladimir reinforced concrete works, 0.10-0.30; foaming agent -triethanolamine salts of alkyl sulfates of alcohol at number of carbon atoms of 8-10 (25%) and 12-14 (75%), 0.04-0.06.
EFFECT: increase of working temperature of material with no deformation and reduction of mechanical strength.
2 cl, 1 tbl, 3 ex
SUBSTANCE: invention concerns obtaining stabilisers applied in stone mastic asphalt concretes designed for road and aerodrome construction. Stabiliser has form of cellulose fibre granules. Cellulose fibre granules include oxidised atactic polypropylene.
EFFECT: stability of mix storage and transportation, enhanced adhesion properties of bitumen or bitumen binding agent with mineral mix components in production of stone mastic asphalt, enhanced water resistance without preliminary modification of bitumen.
FIELD: waste management.
SUBSTANCE: invention relates to waste management particularly to recycling of the waste related to the railway transport, namely to recycling of railway wooden sleepers. The complex of recycling of railway wooden sleepers along with production of heat power, and with lines of production of sawdust concrete and wood-filled plastic materials contains a discharge area, an area of sorting of wooden sleepers and in parallel proximity to it there is an area of preparation of wooden sleepers, an area of sleeper length cutting, an area of sleeper parting-off and a lumber yard. The area of preparation of wooden sleepers is in parallel proximity to an area of sleeper breakage, an area of sawdust drying, an area of sawdust storing and an area of supply-and-exhaust ventilation and aspiration. The area of sawdust drying is connected with the line of sawdust combustion that has an area of sawdust combustion and an area of fume treatment and an area of electric power generation connected with it. The sawdust storing area is connected with the line of sawdust concrete production and the line of wood-filled plastic material.
EFFECT: setting up a complex that is capable of a complete recycling of used wooden railway sleepers to produce lumber, items from wood-filled plastic materials, items from sawdust concrete, as well as to generate heat and electric energy to meet the needs of operational procedures.
3 cl, 3 dwg
SUBSTANCE: composite construction material contains, wt %: cement binder 17-25, filler 50-65, density modifier - concentrated wastes of caprolactam production 0.5-2, lignocellulose materials, spent sorbents of waste or process waters treatment, containing salts of heavy metals, representing cellulose-containing wastes of agroindustrial complex 2.45-13.75, additive - dry distillery dreg 1-3, water - to 100.
EFFECT: improved ultimate compression strength, slump, bend tensile strength and module of resilience of item produced from composite construction material.
1 tbl, 5 ex
SUBSTANCE: cement wood contains the following components, wt %: cement 30-35; ground wood 43.9-53.94; gypsum 0.5-1; carboxymethylcellulose 0.02-0.04; air-entraining extraction-colophony resin 0.04-0.06; quartz sand 15-20, at water-cement ratio of 0.7-0.9.
EFFECT: reduced cement consumption with preservation of strength.
SUBSTANCE: invention relates to production of construction materials. The crude mixture for making bricks contains the following, wt %: sawdust 23.0-27.0; quartz sand 31.0-35.0; portland cement 9.0-11.0; lime paste 29.0-31.0; carboxymethyl cellulose 0.4-0.6; superplasticiser S-3 1.4-1.6.
EFFECT: low consumption of binding materials.
SUBSTANCE: invention relates to production of construction materials based on gypsum binding agent. Mass for production of gypsum plates includes, wt % water 37.5-43; waste paper 7-11; dehydrate gypsum of phosphogypsum 40-42; borax 0.5-1; wood sawdust 7-11.
EFFECT: ensuring ecological safety of gypsum plates.
SUBSTANCE: invention relates to production of crushed stone-mastic asphalt-concrete mixes, used for laying upper layers of automobile road and aerodrome surfaces. Stone-mastic asphalt-concrete mix includes crushed stone, sand from breakage riddling, mineral powder, bitumen and composite material UNIREM-001. Mix additionally contains fibrous additive and adhesive nitrogen-containing additive with the following component content, wt %: crushed stone 65.0-75.0, sand from breakage riddling 5.0-17.0, mineral powder 10.0-20.0, bitumen 5.5-7.5, composite material UNIREM-001 0.3-0.7, fibrous additive 0.2-0.6, adhesive nitrogen-containing additive 0.05-0.15, volume ratio of composite material UNIREM-001 and fibrous additive constitutes respectively 30-70% and 70-30%. Also described is method of obtaining asphalt-concrete mix.
EFFECT: increased homogeneity of crushed stone-mastic asphalt-concrete mix and crushed stone-mastic asphalt concrete, its long-term waterproofness and durability.
2 cl, 7 tbl
SUBSTANCE: invention relates to production of construction materials. The mixture for making heat-insulation boards contains the following, pts.wt: water 340-360; waste paper 260-300; phosphogypsum 50-60; urea-formaldehyde resin 4-6; starch 4-6; asbestos fibre cut into 5-50 mm pieces 6-10.
EFFECT: high strength of heat-insulation boards.
FIELD: building materials, in particular grouting mortar, concrete mix, and dry building mix.
SUBSTANCE: claimed complex powder additive contains (mass %): superplasticizer 66.7-72.7; commercial lignosulfonates 17.4-20.0; organopolysiloxane (e.g. sodium ethylsiliconate or methylsiliconate containing 5.53-6.11 mass % of silicon and having polymerization degree of 9-12) 7.3-15.9.
EFFECT: high-technology dry plasticizer, providing optimum air entrainment and stable physical and mechanical properties of concrete and mortars under negative temperatures.
FIELD: concrete article production, particularly to manufacture building and finishing decorative panels, paving and road coatings.
SUBSTANCE: composition comprises cement, crushed stone, sand, plasticizer and water. The plasticizer is oil-containing sludge. All above components are taken in the following amounts (parts by weight): cement - 450, sand - 100-560, crashed stone - 1000, oil containing sludge - 100-560, water - 150. Oil containing sludge comprises oil products in amount of not more than 200 g/kg.
EFFECT: increased strength properties and possibility to utilize waste from car-repair, engineering and other plants.
2 cl, 1 tbl
FIELD: manufacture of building materials.
SUBSTANCE: invention is directed to preparation of plasters, finishing compositions, and concretes. Complex additive for cement binder, containing saponified wood resin (0.5-2%), superplasticizer S-3 (15-21%), and finely divided filler (55-70%), is characterized by that finely divided filler is ground aleurite and that additive further contains polyethylhydroxysilane (0.05-0.075%), carbon black as hydrophobization agent (0.1-0.25%), and potassium carbonate as curing agent (14-25%).
EFFECT: increased frost resistance and corrosion resistance and also speeded up strength development in early solidification phase.
FIELD: manufacture of building materials.
SUBSTANCE: complex additive is meant for use in cement binder compositions served for manufacturing quick-setting mortars and concretes. Complex additive, containing superplasticizer S-3 (14-28%) and sodium sulfate (14-28%) is further supplemented by industrial-grade lignosulfonate as unwatering agent (3-7%), aluminum sulfate as densifier (14-28%), and potassium carbonate as antifreeze admixture (30-50%).
EFFECT: reduced water demand in mortar and concrete mixes, increased curing rate and strength of concretes.
FIELD: industry of building materials.
SUBSTANCE: invention relates to a building material mixture. The building material mixture comprises material chosen from the group consisting of gypsum, calcium hydroxide, cement and their mixtures, and also - polysaccharide or derivative of polysaccharide with particles size less 15 mcm taken in the amount 2 weight % maximally, particles size less 10 mcm taken in the amount 2 weight % maximally, and particles size less 5 mcm taken in the amount 1 weight % maximally, and if necessary the mixture comprises quartz sand or lime sand, water repellant, synthetic dispersion powder, cellulose fibers and/or synthetic fibers, pore-forming additive and light filling agents in the following ratio of components, weight %: material from the group containing gypsum, calcium hydroxide, cement or their mixtures, 1-99.99; polysaccharide or derivative of polysaccharide, 0.001-5; quartz sand or lime sand, up to 90; synthetic dispersion powder, up to 10; light filling agents, up to 10; water repellant, up to 1; pore-forming additive, up to 0.1; cellulose fibers and/or synthetic fibers, up to 15 wherein the content of components that the mixture comprises when needed doesn't mean 0 simultaneously, and polysaccharide or derivative of polysaccharide is prepared by the known technology. Invention provides improvement of physical-chemical properties of building mixture.
EFFECT: improved properties of building material mixture.
6 cl, 11 tbl