Raw material mix for protective coat of concrete surface. RU patent 2305671.

FIELD: manufacture of building materials; protection of concrete surfaces in industrial and civil construction engineering.

SUBSTANCE: proposed raw material mix contains cement, sand, complex additive and water; it additionally contains montmorillonite clay at specific surface S_sp. no less than 150 m²/kg; complex additive contains at specific surface S_sp. equal to 2000 m²/kg, additive TSMID-4; 20-% solution of ortho-silicic acid sol at pH of 3-4 at the following ratio of components, mass-%: cement, 23.00-28.81; sand, 59.00-64.00; montmorillonite clay at specific surface of S_sp. no less than 150 m²/kg, 0.69-0.83; micro-silica at specific surface S_sp. equal to 2000 m²/kg, 1.16-1.30; additive TSMID-4, 0.19-0.22; 20-% solution of ortho-silicic acid sol at pH of 3-4, 0.14-0.17; water, 10.01-10.48.

EFFECT: enhanced compressive strength, adhesion strength and water-tightness.

1 tbl, 1 ex

IPC classes for russian patent Raw material mix for protective coat of concrete surface. RU patent 2305671. (RU 2305671):

C04B41/65 - with inorganic materials

Another patents in same IPC classes:

Composition for preventive treatment of building materials, buildings and pavements / 2266879
Claimed composition contains (mass %) potassium carbonate 5-90, potassium silicate 0.05-20, potassium phosphate 0.05-5, potassium fluoride 0-0.05 and balance: potassium carboxylate (acetate or formate). Additionally it may contain surfactant and/or antiseptic agent, and/or antistatic agent, and/or antiozonization agent, and/or antipyren.

Fire-retardant formulation / 2249579
Claimed composition contains (mass %): alumosilicate fiber (e.g., granulated kaolin fiber with size particle of 20-40 mm containing calcium chloride) 74-80; mineral binder 14-20; calcium chloride 2-4; and water up to water-solid ratio of 1:3. Formulation of present invention is useful in fire-retardant internal and external coats for concrete, reinforced-concrete and metal construction of civil and military objects, air-ducts, transport tunnels, bridges etc.

Raw mixture for fire-retardant coating / 2245867
Raw mixture for claimed coating contains (mass %) hydraulic binder 70-90; expended perlite sand of 0.16-1.25 mm-grade 5-15; expanded vermiculite of 0.6-5.0 mm-grade 5-15; optionally microsilica 3-20 % or liquid glass 1-5 % as reduced to mass of hydraulic binder, or C3-additive 0.2-1.0 % as reduced to mass of hydraulic binder. As hydraulic binder cementing agent of low water requirement including (mass %) clinker cement 20-90; ground perlite 10-80, and chemical additive containing 0.5-3.5 % of water-lowering component as reduced to clinker cement or cementing agent of low water and Portland cement in amount of 10-90 % is used. Raw mixture contains tempering water up to water/solid ratio of 0.5-1.0.

Raw material mix for protective coat of concrete surface / 2305671
Proposed raw material mix contains cement, sand, complex additive and water; it additionally contains montmorillonite clay at specific surface Ssp. no less than 150 m2/kg; complex additive contains at specific surface Ssp. equal to 2000 m2/kg, additive TSMID-4; 20-% solution of ortho-silicic acid sol at pH of 3-4 at the following ratio of components, mass-%: cement, 23.00-28.81; sand, 59.00-64.00; montmorillonite clay at specific surface of Ssp. no less than 150 m2/kg, 0.69-0.83; micro-silica at specific surface Ssp. equal to 2000 m2/kg, 1.16-1.30; additive TSMID-4, 0.19-0.22; 20-% solution of ortho-silicic acid sol at pH of 3-4, 0.14-0.17; water, 10.01-10.48.

Melted finishing layer for concrete / 2307113
Melted finishing layer for concrete containing water, Portland cement, quartz sand, includes in addition milled waste glass and rutile at next relation of ingredients: water, Portland cement, quartz sand, milled waste glass respectively 0.5 : 1 : 3 : 1 vol. Parts and rutile in quantity 1 - 2 % of mass of milled waste glass.

Glass-like cover / 2311369
Invention relates to compositions of glass-like covers used for applying on building materials based on hydraulic, water-glass and phosphate binding materials. Proposed glass-like cover comprises the following components, wt.-%: SiO2, 30.0-35.0; B2O3, 20.0-27.0; ZnO, 21.0-30.0; K2O, 2.0-4.0; CuO, 3.0-5.0; CaO, 3.0-5.0; ZrO2, 3.0-5.0, and TiO2, 3.0-5.0. Invention provides enhancing the cohesiveness strength value of glass-like cover with building material.

Method of glazing concrete articles / 2317965
Proposed method includes application of glaze suspension on articles followed by drying and fusion. Prior to application of glaze suspension, decorative material in form of twisted mineral textile fibers impregnated with dye solution are introduced into non-hardened surface layer of concrete article and are held for 28 days. Decorative material is divided into sections impregnated with solutions of different dyes.

Method of glazing concrete articles / 2318780
Proposed method includes application of glaze suspension on surfaces followed by drying and fusion; prior to fusion, decorating material is applied on non-hardened surface layer of article in form of twisted textile mineral fibers impregnated with glaze suspension; fusion is carried out after 28-day holding of articles. Said fibers may be divided lengthwise into sections impregnated with glaze suspensions of different color.

Compound for waterproofing porous concrete surfaces / 2325370
Invention relates to compounds with penetration action, used for coating concrete surfaces exposed to water. The waterproofing compound for porous concrete surfaces consists of a cement and sand mixture, sodium carbonate and citric acid with the following mass ratios of the components: 7-12% sodium carbonate; 3-6% citric acid; 20-25% Portland cement; the remaining percentage is for sand with particle sizes of 600 mcm.

Protective medium from contamination and its structural slab / 2326098
Invention pertains to the protective medium from contamination of the surface of fibrolite slabs and to a fibrolite slab with the given medium. The protective medium, which forms a super-hydrophilic anti-splash film after being deposited on the surface of the fibrolite slab, consists of the following components with the given percentage mass ratios: 0.1-10 pyrogenic silica, 2-10% spirit, 0.01-0.25% surface active substance, and water constituting the remaining percentage. The fibrolite slab has a super-hydrophilic anti-splash film, obtained by depositing the given protective medium on its surface with subsequent drying. The fibrolite slab can be obtained through preliminary deposition of a coating compound on its surface with formation of a coating and deposition after 10-60 s of the protective medium on the given coating, under half-dry conditions, with subsequent drying during heating.