CN101475356A - Concrete microcrack grouting patching material based on superfine fly ash micro-bead - Google Patents
Concrete microcrack grouting patching material based on superfine fly ash micro-bead Download PDFInfo
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- CN101475356A CN101475356A CNA2009100453960A CN200910045396A CN101475356A CN 101475356 A CN101475356 A CN 101475356A CN A2009100453960 A CNA2009100453960 A CN A2009100453960A CN 200910045396 A CN200910045396 A CN 200910045396A CN 101475356 A CN101475356 A CN 101475356A
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- 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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/021—Ash cements, e.g. fly ash cements ; Cements based on incineration residues, e.g. alkali-activated slags from waste incineration ; Kiln dust cements
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
- C04B18/088—Flue dust, i.e. fly ash in high volume fly ash compositions
-
- 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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
- C04B28/065—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/72—Repairing or restoring existing buildings or building materials
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/72—Repairing or restoring existing buildings or building materials
- C04B2111/723—Repairing reinforced concrete
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention belongs to the technical field of architectural material, and in particular relates to concrete micro-crack grout repairing material based on super fine fly ash micro-beads. The material consists of the super fine fly ash micro-beads, a cellulose ether, polyvinyl acetate emulsion powder, a naphthalene sulfonic acid formaldehyde condensate water reducing agent, calcium sulphoaluminate, gypsum, sodium silicate, sodium fluoride and sodium hydroxide. The material can be used to effectively repair the micro-cracks in the surface and inside of the concrete caused by various reasons with very high efficiency, thereby greatly improving the barrier property, chemical erosion resistance and carbonization resistance of the concrete, and prolonging the service life a concrete building (structure). The material is suitable for constructions (structures) such as bridges, buildings, water power projects, road surfaces, and the like made by reinforced concrete and light aggregate concrete.
Description
Technical field
The invention belongs to building material technical field, be specifically related to a kind of concrete microfracture grouting patching material based on superfine fly ash micro-bead.
Background technology
Behind the cement concrete casting and constructing,, very easily produce cracking phenomena if do not note maintenance.The rimose reason is a lot, as plastic shrinkage, temperature contraction, self-constriction, dry shrinkage, non-uniform settling etc.Concrete is a kind of accurate hard brittle material, and its tensile strength is low, and so poor toughness is microfracture ubiquity in construction and the bad concrete structure of maintenance.Although in most cases, concrete all is that band splits carrying, as if outwardly, microfracture does not have disadvantageous effect to concrete performance,, if analyze from a variety of causes of concrete performance deterioration, then none is not relevant with microfracture.Because the existence of microfracture, not only rainwater, water of condensation infiltrate easily, and more fearful are, extraneous corrosive medium all can cause producing chemical erosion along with liquid, air infiltration are gone into inside concrete as acid, alkali, salt, cement strength reduces, the volume stability variation.Sometimes after the concrete of water-filling is subjected to freeze-thaw cycle destruction, can causes that microfracture further enlarges, even cause the structural entity spalling.Microfracture also is to make the steel bar corrosion of inside concrete to destroy acceleration to the influence of concrete performance.Reinforcement location has only 2-3cm from the surface, and the crack often expands to rebar surface, Cl
-Behind the contact rebar surface, then reinforcing bar can quicken corrosion, and this influence to concrete bearing capacity is very large.According to statistics, the damage of 85% above buildings is not because carrying surpasses load allowable, but because due to cracking and the concrete performance deterioration.
At present, a large amount of municipal foundation works construction are carried out just in high gear, and the planner is 100 years to its military service phase that sets; Old building and structures are because the influence of surface microcracks is just entering the stage that need repair energetically.When the useful ordinary mortar of the method for pre-treatment microfracture is wiped one's face, Resins, epoxy, urethane and the grouting patching material joint filling of common crack.As everyone knows, not only self is easy to crack for common sand-cement slurry, and poor water retention property, and low with the basic unit cohesive strength, very easy coming off after the construction of wiping one's face causes repairing failure, and it is mobile poor simultaneously, also can not the infiltration micro-cracks in; And Resins, epoxy drawn game ammonia ester although seam-filling ability is strong under pressure, relatively poor with the viscosifying power of sides of fracture, itself ageing resistance is also bad, repair efficiency is still relatively poor; Common crack grouting patching material is the fissured material of a kind of good mending concrete, its flowability, good water-retaining property, good with the bonding strength of basic unit, and has certain microdilatancy, can fully contact with basic unit, sclerosis back good toughness, the fatigue resistance height, and can resist certain shock load, but existing in the market a lot of cracks grouting patching material is owing to the deficiency of its material component aspect, the central thicker sand grains of particle that adopted, be difficult to pour in the microfracture, a small amount of cement that adopts ultra-fine mill, and with the sand rejecting, though can successfully pour in the microfracture, but milling equipment is required high owing to produce superfine cement, need a large amount of grinding energy consumptions, run in the opposite direction with the energy-conservation of current state-of-the-nation call, and the easy moisture absorption weathering of ultra-fine mill cement and losing efficacy, be difficult to long-time the preservation, this has proposed very big challenge to ultra-fine mill cementation process patching material.And the superfine fly ash micro-bead that a kind of special coal-fired technology produces has appearred in China now, its average particulate diameter is about 2.5 microns, only be equivalent to Portland cement particulate 1/10, particle is spherical in shape, have good flowability, and vitreum content reaches more than 95%, pozzolanic activity is very high, as long as excited measure fully, just can develop the various functional type materials of excellent performance.The present invention is based on superfine fly ash micro-bead, developed a kind of concrete microfracture grouting patching material, production technique is simple, and applied range has good technical, economic and social benefit.
Summary of the invention
The object of the present invention is to provide a kind of concrete microfracture grouting patching material based on superfine fly ash micro-bead that can effectively carry out grouting mending to the concrete microfracture.
The concrete microfracture grouting patching material that the present invention proposes based on superfine fly ash micro-bead, be made up of superfine fly ash micro-bead, ether of cellulose, polyvinyl acetate (PVA) latex powder, naphthalene sulfonic acidformaldehyde condensation product water reducer, calcium sulphoaluminate, gypsum, water glass, Calucium Silicate powder, Sodium Fluoride and sodium hydroxide, the weight ratio of each component is:
Superfine fly ash micro-bead 100
Ether of cellulose 0.01-0.55
Polyvinyl acetate (PVA) latex powder 0.5-5.5
Naphthalene sulfonic acidformaldehyde condensation product water reducer 0.5-3
Calcium sulphoaluminate 2-8
Gypsum 1-3
Water glass 0-10
Calucium Silicate powder 0-10
Sodium Fluoride 0-5
Sodium hydroxide 0-5.
The preferable weight ratio of each component is:
Superfine fly ash micro-bead 100
Ether of cellulose 0.02-0.35
Polyvinyl acetate (PVA) latex powder 1.0-4.5
Naphthalene sulfonic acidformaldehyde condensation product water reducer 0.5-2
Calcium sulphoaluminate 2-6
Gypsum 2-3
Water glass 0-8
Calucium Silicate powder 0-8
Sodium Fluoride 0-4
Sodium hydroxide 0-4.
Among the present invention, superfine fly ash micro-bead is 0.5 micron spheroidal particle as a kind of average grain particle diameter, size has only 1/40 of cement granules, can not only improve concrete flowability, and can reduce concrete hydration heat, fissured generation in the prevention concrete, in addition, because its volcanic ash effect and microballon filling effect can further strengthen concrete later strength, strengthen concrete density.
Preparation method of the present invention is: by aforementioned each part by weight weighing each component, other 9 kinds of raw materials except that superfine fly ash micro-bead are mixed by physical mechanical and employing ball mill grinding 5-15min, evenly promptly obtain desired product with superfine fly ash micro-bead by mechanically mixing again.
Can under the certain pressure effect, successfully infiltrate the inside concrete width and be not less than in the micro-cracks of 0.05mm behind the product blunge of the present invention, hydration reaction takes place, produce hydrated product, the sclerosis back produces intensity, and can bond with sides of fracture, forms whole.
In the product of the present invention, superfine fly ash micro-bead has volcanic ash effect and filling effect also as inorganic coagulation material, can infiltrate in the concrete micro-cracks, hydration reaction takes place, produce hydrated product, the sclerosis back produces intensity, and can bond with sides of fracture, forms whole.Ether of cellulose is as the water-keeping thickening component, its role is to can be in cement slurry swelling, produce the bridging effect, and cement granules linked together by the molecular adsorption effect, avoid particles settling; When slurry flows, guarantee that slurry becomes integral body, and do not produce excreting water phenomenon; The effect of ether of cellulose is also to prevent in the slurry that moisture is absorbed or excessive vaporization by sides of fracture and basic unit, thereby plays good in the maintenance effect.The polyvinyl acetate (PVA) latex powder becomes emulsion after meeting water, can not only increase the stability of slurry, and in the slurry process of setting, the dry gradually dehydration of emulsion, the Vinyl Acetate Copolymer ester molecule interconnects, and forms one deck macromolecule membranous layer, strengthens the toughness and the shock resistance of hardened paste.The naphthalene sulfonic acidformaldehyde condensation product water reducer has dissemination to cement slurry, can strengthen the flowability of slurry, makes slurry more successfully infiltrate micro-cracks, reaches effective grouting mending purpose.Calcium sulphoaluminate provides a certain amount of aluminium phase for the formation of expanded product in the hardened paste.Gypsum provides competent SO for the formation of expanded product in the hardened paste
4 2-With calcium sulphoaluminate generation chemical reaction, form a certain amount of ettringite crystal, produce volumetric expansion, help to compensate the contraction in slurry sclerosis and the drying process, patching material and concrete body are connected as a single entity all the time.In addition, gypsum still is a kind of effective activity excitant of superfine fly ash micro-bead generation pozzolanic reaction.Water glass, Calucium Silicate powder, Sodium Fluoride and sodium hydroxide all have good excitation to superfine fly ash micro-bead, are to make the superfine fly ash micro-bead generation hydration reaction that infiltrates the concrete microfracture, produce the compound activator of superpower binding ability.
The present invention does the finely powdered material for grey, and during use, its amount of water is the 10%-30% of grouting patching material weight.
The present invention uses as concrete microfracture grouting patching material, can effectively infiltrate concrete microfracture inside, have excellent flowability and water-retentivity, the cohesive strength height of sclerosis back and tiny crack two walls, and itself have certain toughness and compensate for shrinkage, high temperature resistant strong with the freeze-thawing resistant circulation ability, excellent in te pins of durability.
The present invention is widely used in the grouting mending of concrete structure (structures) microfractures such as Steel Concrete, light aggregate concrete, bridge, building, water conservancy project and road surface to the effect of inside concrete reinforcing bar non-corroding.
Embodiment
Further specify the present invention below by embodiment.
Embodiment 1, concrete microfracture grouting patching material based on superfine fly ash micro-bead is pressed superfine fly ash micro-bead 84.00% (weight percent, down together), ether of cellulose 0.04%, polyvinyl acetate (PVA) latex powder 1.68%, naphthalene sulfonic acidformaldehyde condensation product water reducer 0.84%, calcium sulphoaluminate 3.36%, gypsum 1.68%, water glass 2.64%, water glass 2.64%, Sodium Fluoride 1.68%, sodium hydroxide 1.68% are formulated.After water that adding accounts for dry powder material 15% stirs, the product degree of mobilization can reach 380mm, still reach 360mm behind the 30min, the vertical rate of expansion of 3h is 0.15%, and the vertical rate of expansion of 1d is 0.25%, and sclerosis back 1d ultimate compression strength reaches 25MPa, 28d ultimate compression strength reaches 63MPa, 28d adhesive tensile resistance intensity reaches 4.5MPa, and pressure is cut consolidation strength and reached 6.2MPa, and pressing behind 7 freeze-thaw cycle and cutting the consolidation strength reduced rate is 0%.
Embodiment 2, concrete microfracture grouting patching material based on superfine fly ash micro-bead is pressed superfine fly ash micro-bead 82.00%, ether of cellulose 0.04%, polyvinyl acetate (PVA) latex powder 1.68%, naphthalene sulfonic acidformaldehyde condensation product water reducer 0.84%, calcium sulphoaluminate 4.36%, gypsum 1.68%, water glass 3.64%, water glass 2.64%, Sodium Fluoride 1.68%, sodium hydroxide 1.68% are formulated.After water that adding accounts for dry powder material 15% stirs, the product degree of mobilization can reach 385mm, still reach 360mm behind the 30min, the vertical rate of expansion of 3h is 0.15%, and the vertical rate of expansion of 1d is 0.25%, and sclerosis back 1d ultimate compression strength reaches 24MPa, 28d ultimate compression strength reaches 64MPa, 28d adhesive tensile resistance intensity reaches 4.5MPa, and pressure is cut consolidation strength and reached 6.2MPa, and pressing behind 7 freeze-thaw cycle and cutting the consolidation strength reduced rate is 0%.
Embodiment 3, concrete microfracture grouting patching material based on superfine fly ash micro-bead is pressed superfine fly ash micro-bead 80.00%, ether of cellulose 0.04%, polyvinyl acetate (PVA) latex powder 1.68%, naphthalene sulfonic acidformaldehyde condensation product water reducer 0.84%, calcium sulphoaluminate 3.36%, gypsum 1.68%, water glass 3.64%, water glass 3.64%, Sodium Fluoride 2.68%, sodium hydroxide 2.68% are formulated.After water that adding accounts for dry powder material 15% stirs, the product degree of mobilization can reach 390mm, still reach 365mm behind the 30min, the vertical rate of expansion of 3h is 0.15%, and the vertical rate of expansion of 1d is 0.25%, and sclerosis back 1d ultimate compression strength reaches 23MPa, 28d ultimate compression strength reaches 65MPa, 28d adhesive tensile resistance intensity reaches 4.5MPa, and pressure is cut consolidation strength and reached 6.2MPa, and pressing behind 7 freeze-thaw cycle and cutting the consolidation strength reduced rate is 0%.
Embodiment 4, concrete microfracture grouting patching material based on superfine fly ash micro-bead is pressed superfine fly ash micro-bead 86.00%, ether of cellulose 0.04%, polyvinyl acetate (PVA) latex powder 2.18%, naphthalene sulfonic acidformaldehyde condensation product water reducer 1.46%, calcium sulphoaluminate 6.86%, gypsum 3.68%, formulated.After water that adding accounts for dry powder material 15% stirs, the product degree of mobilization can reach 390mm, still reach 365mm behind the 30min, the vertical rate of expansion of 3h is 0.25%, and the vertical rate of expansion of 1d is 0.35%, and sclerosis back 1d ultimate compression strength reaches 21MPa, 28d ultimate compression strength reaches 60MPa, 28d adhesive tensile resistance intensity reaches 4.0MPa, and pressure is cut consolidation strength and reached 5.7MPa, and pressing behind 7 freeze-thaw cycle and cutting the consolidation strength reduced rate is 0%.
Claims (4)
1, a kind of concrete microfracture grouting patching material based on superfine fly ash micro-bead, it is characterized in that this patching material is made up of superfine fly ash micro-bead, ether of cellulose, polyvinyl acetate (PVA) latex powder, naphthalene sulfonic acidformaldehyde condensation product water reducer, calcium sulphoaluminate, gypsum, water glass, Calucium Silicate powder, Sodium Fluoride and sodium hydroxide, the weight ratio of each component is:
Superfine fly ash micro-bead 100
Ether of cellulose 0.01-0.55
Polyvinyl acetate (PVA) latex powder 0.5-5.5
Naphthalene sulfonic acidformaldehyde condensation product water reducer 0.5-3
Calcium sulphoaluminate 2-8
Gypsum 1-3
Water glass 0-10
Calucium Silicate powder 0-10
Sodium Fluoride 0-5
Sodium hydroxide 0-5.
2, the distress in concrete grouting patching material based on superfine fly ash micro-bead according to claim 1 is characterized in that the each component weight ratio is:
Superfine fly ash micro-bead 100
Ether of cellulose 0.02-0.35
Polyvinyl acetate (PVA) latex powder 1.0-4.5
Naphthalene sulfonic acidformaldehyde condensation product water reducer 0.5-2
Calcium sulphoaluminate 2-6
Gypsum 2-3
Water glass 0-8
Calucium Silicate powder 0-8
Sodium Fluoride 0-4
Sodium hydroxide 0-4.
3, the distress in concrete grouting patching material based on superfine fly ash micro-bead according to claim 1 is characterized in that superfine fly ash micro-bead is that the average grain particle diameter is 0.5 micron a spheroidal particle.
4, a kind of using method of the distress in concrete grouting patching material based on superfine fly ash micro-bead as claimed in claim 1 is characterized in that adding the water of this material weight 10%-30%, stirs.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100453960A CN101475356B (en) | 2009-01-15 | 2009-01-15 | Concrete microcrack grouting patching material based on superfine fly ash micro-bead |
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| CN2009100453960A CN101475356B (en) | 2009-01-15 | 2009-01-15 | Concrete microcrack grouting patching material based on superfine fly ash micro-bead |
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| CN101475356A true CN101475356A (en) | 2009-07-08 |
| CN101475356B CN101475356B (en) | 2011-05-25 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102020990A (en) * | 2009-09-22 | 2011-04-20 | 山东宏艺科技股份有限公司 | Novel high-strength waterproof composite solid curing agent |
| CN104402345A (en) * | 2014-11-28 | 2015-03-11 | 中建商品混凝土成都有限公司 | High fluidization micro expansive high-strength grouting material |
| CN105777035A (en) * | 2016-02-29 | 2016-07-20 | 同济大学 | Concrete crack grouting repairing material prepared from calcium silicate hydrate crystal seed powder and use method of material |
| CN106565157A (en) * | 2016-10-19 | 2017-04-19 | 长安大学 | Organic modified reinforcement and strengthening road surface material and preparation method thereof |
| CN108821701A (en) * | 2018-08-29 | 2018-11-16 | 桐乡正昶新型材料有限公司 | A kind of prefabricated components connection grouting material |
| CN115057651A (en) * | 2022-07-06 | 2022-09-16 | 宁波新盛建材开发有限公司 | Plastic-retaining antifreezing magnesia concrete anti-cracking agent and preparation method thereof |
| CN116730376A (en) * | 2023-06-20 | 2023-09-12 | 济南大学 | Monosulfur hydrated calcium sulfoaluminate and chlorine erosion resistant additive thereof, preparation method and application |
Family Cites Families (3)
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| CN100345791C (en) * | 2006-04-10 | 2007-10-31 | 赵云龙 | Heat insulating glue powder material for wall and its prepn and usage |
| CN101058493B (en) * | 2006-04-23 | 2012-05-23 | 柳州欧维姆机械股份有限公司 | CA mortar for plate-type slag-free orbit and preparation method thereof |
| CN100509967C (en) * | 2006-08-29 | 2009-07-08 | 泰州五行涂料有限公司 | Fire-retardant coatings for tunnel, and preparation method thereof |
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2009
- 2009-01-15 CN CN2009100453960A patent/CN101475356B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102020990A (en) * | 2009-09-22 | 2011-04-20 | 山东宏艺科技股份有限公司 | Novel high-strength waterproof composite solid curing agent |
| CN102020990B (en) * | 2009-09-22 | 2014-08-06 | 山东宏艺科技股份有限公司 | Novel high-strength waterproof composite solid curing agent |
| CN104402345A (en) * | 2014-11-28 | 2015-03-11 | 中建商品混凝土成都有限公司 | High fluidization micro expansive high-strength grouting material |
| CN105777035A (en) * | 2016-02-29 | 2016-07-20 | 同济大学 | Concrete crack grouting repairing material prepared from calcium silicate hydrate crystal seed powder and use method of material |
| CN106565157A (en) * | 2016-10-19 | 2017-04-19 | 长安大学 | Organic modified reinforcement and strengthening road surface material and preparation method thereof |
| CN106565157B (en) * | 2016-10-19 | 2018-12-28 | 长安大学 | A kind of organically-modified reinforcement and strengthening ground surface material and preparation method thereof |
| CN108821701A (en) * | 2018-08-29 | 2018-11-16 | 桐乡正昶新型材料有限公司 | A kind of prefabricated components connection grouting material |
| CN115057651A (en) * | 2022-07-06 | 2022-09-16 | 宁波新盛建材开发有限公司 | Plastic-retaining antifreezing magnesia concrete anti-cracking agent and preparation method thereof |
| CN116730376A (en) * | 2023-06-20 | 2023-09-12 | 济南大学 | Monosulfur hydrated calcium sulfoaluminate and chlorine erosion resistant additive thereof, preparation method and application |
| CN116730376B (en) * | 2023-06-20 | 2024-01-26 | 济南大学 | Monosulfur hydrated calcium sulfoaluminate and chlorine erosion resistant additive thereof, preparation method and application |
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| Publication number | Publication date |
|---|---|
| CN101475356B (en) | 2011-05-25 |
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