CN105503067A - Polymer-cement based waterproof mortar and application thereof - Google Patents
Polymer-cement based waterproof mortar and application thereof Download PDFInfo
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- CN105503067A CN105503067A CN201510862230.3A CN201510862230A CN105503067A CN 105503067 A CN105503067 A CN 105503067A CN 201510862230 A CN201510862230 A CN 201510862230A CN 105503067 A CN105503067 A CN 105503067A
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- waterproof mortar
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- based waterproof
- polymer cement
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Classifications
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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
- C04B28/04—Portland 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/40—Surface-active agents, dispersants
- C04B2103/408—Dispersants
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/50—Defoamers, air detrainers
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent 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
- C04B2111/74—Underwater applications
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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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
The invention belongs to the field of building material technology, and especially relates to the polymer-cement based waterproof mortar and an application thereof. The waterproof mortar comprises a liquid component and a solid component, wherein the proportion between the liquid ingredient and the solid component is 1:2.5-3.6; the liquid component comprises the following components in parts by weight: 100 parts of emulsion, 0.25-0.6 parts of an antifoaming agent, 0.25-0.7 parts of an antiseptic and 20-80 parts of water; the solid component comprises the following components: 100 parts of Portland cement, 15-40 parts of granulated blast furnace slag powder, 5-30 parts of ultrafine slag powder, 1-8 parts of desulfurized fly ash from dry-desulfurization process, 250-400 parts of river sand, 50-180 parts of fine slag particles, 0.05-0.15 parts of an antifoaming agent, 0.2-1.2 parts of a hyper-dispersant, and 0.8-5 parts of nanometer attapulgite. The waterproof mortar has the advantages of high anti-permeability grade, high compressive strength and bonding strength, aging resistance, construction convenience, low cost, green product, and environmental protection.
Description
Technical field
The invention belongs to building material technical field, particularly a kind of polymer cement-based waterproof mortar and application thereof.
Background technology
Seepage directly has influence on the life-span of whole solitary building.Along with the raising that people require construction engineering quality, body of wall facade waterproof, moisture substrate waterproof more and more cause the attention of building trade.On the other hand, the leakage problems of the concrete building structures that some ages are longer also result in extensive concern.In various water-proof material, there is impermeability difference, drying shrinkage problem large, easy to crack in rigid waterproofing mortar.Coiled material class waterproof is more suitable for plane construction, and the position that basic unit's water ratio is low.Polymer cement-based waterproof mortar is a kind of important way preventing leakage of buildings, not only has excellent ultimate compression strength, and rigid flexible system, has good adhesive property with basic unit.Polymer penetration is film forming in hole and kapillary, serves sufficient inhibition to outside moisture attack.
But there is contradiction, the high impermeability that can improve of polymer content between the impervious and intensity of polymer mortar (backfin ratio), but ultimate compression strength can be reduced; Ultimate compression strength is high, and impermeability does not meet the demands again.And there is adaptability problem between inorganic gel system and polymkeric substance.Gelling system anti-permeability performance after adding certain polymkeric substance can reduce on the contrary the most closely.
So preparation one has high seepage-resistant grade, high ultimate compression strength and cohesive strength, anti-aging, easy construction, and polymer cement-based waterproof mortar with low cost is most important for the life-span of improving buildings.
Summary of the invention
The object of the invention is to improve a kind of polymer cement-based waterproof mortar, this mortar has that seepage-resistant grade is high, ultimate compression strength and cohesive strength high, anti-aging, easy construction, with low cost, and take full advantage of the metallurgical slags such as blast-furnace slag, dry-process desulfurized ash and slag, there is good economic benefit and social benefit.
Object of the present invention can be achieved through the following technical solutions:
A kind of polymer cement-based waterproof mortar, it is characterized in that, this waterproof mortar contains liquid ingredient and solid ingredient, and the weight ratio of described liquid ingredient and solid ingredient is 1:2.5-3.6;
Described liquid ingredient is:
Described solid ingredient is:
The preferred proportioning of each component of above-mentioned polymer cement-based waterproof mortar is, the part by weight of liquid ingredient and solid ingredient is 1:2.8 ~ 3.5, wherein,
Preferred liquid ingredient is:
Preferred solid ingredient is:
Emulsion in described liquid ingredient is one in styrene-butadiene emulsion or benzene emulsion or its mixture.Emulsion is filled the hole of inorganic gel system and is penetrated in kapillary in mortar, film forming in hole and kapillary, makes inorganic coagulation material and latex powder become organic one, adds the combination degree of mortar and matrix, be adsorbed on the surface of matrix firmly, improve cohesive strength.Improve the snappiness of mortar, reduce the backfin ratio of mortar.Described emulsion has good application property, weathering resistance and weather resistance.
Defoamer in described liquid ingredient or solid ingredient is polyether-modified dimethyl silicone oil.Described defoamer can eliminate the bubble in mortar, reduces porosity, thus improves intensity and backfin ratio.
Silicate cement in described solid ingredient is the one of 52.5 grades of ordinary Portland cements or 42.5 grades of ordinary Portland cements.
The Blain specific surface of the GBFS in described solid ingredient is 350-450m
2/ kg, quality coefficient is 1.7-2.1.Described GBFS is that inorganic gel system provides medium sized particle, is filled with the hole between thicker cement granules.The application of described GBFS, reduces the consumption of cement, reduces the basicity of gelling system, slow down the hydration reaction at gelling system initial stage, extends operable time; But later strength comparatively cement itself is improved to some extent again.In addition, described granulated blast-furnace slag is the waste of the blast-furnace smelting pig iron, and its use also reduces the consumption of natural resources, is conducive to the recycle of resource.
The d97 particle diameter of the ultrafine slag powder in described solid ingredient is 5-20 μm, and Blain specific surface is 500-800m
2/ kg, quality coefficient is 1.7-2.1.Described ultrafine slag powder is the GBFS that fineness is very high, its use, except the material property of GBFS self, is also filled with the hole between small-particle, contributes to the closely knit further of inorganic gel system.The GBFS of more common fineness; the cement cementitious system that the early strength of 1-3 days of ultrafine slag powder is more simple is high; more firm with the combination of system, but after stirring with water, the aquation initial stage aquation of inorganic gel system is comparatively slow, extends waterproof mortar system operable time.
Thin steel slag particle in described solid ingredient is electric furnace through drum process process or bessemer furnace slag, and f-CaO<3%, particle diameter is 1-2.5mm.Thin steel slag particle has high strength, wear resistance is good, good water absorption, and freezing-thawing resistance is strong, not only can make full use of metallurgical slag, can also improve intensity and the non-deformability of waterproof mortar as mortar aggregate.
Dispersion agent in described solid ingredient is polycarboxylic acid series hyper-dispersant.Preferably, described polycarboxylic acid series hyper-dispersant is early-strength type polycarboxylic acid hyperdispersant.This hyper-dispersant can make each component fully mix, and improves the adaptability of inorganic coagulation material and latex powder, and can meet low water-cement ratio requirement, improves the anti-permeability performance of waterproof mortar, has good workability, greatly improve the ultimate compression strength of mortar.
River sand in described solid ingredient is siliceous sand, and fineness modulus is 2.2-2.6, and tap density is 1400-1500kg/m
3.
Dry-process desulfurized ash in described solid ingredient is the waste of steel mill's sinter fume dry desulfurization, and its calcium sulfite content is 35-65%, and calcium carbonate content is 30-60%.Calcium sulfite in dry-process desulfurized ash plays sulphate activation to GBFS and ultrafine slag powder, is conducive to the generation of ettringite, thus is conducive to the further raising of intensity.
The present invention for complex cementitious system with silicate cement, dry-process desulfurized ash, slag powders and ultrafine slag powder, with river sand and thin steel slag particle for aggregate, is polymkeric substance with latex powder, adds defoamer, hyper-dispersant and nano-attapulgite and be prepared from.Emulsion in described liquid ingredient is one in styrene-butadiene emulsion or benzene emulsion or its mixture.Emulsion is filled the hole of inorganic gel system and is penetrated in kapillary in mortar, film forming in hole and kapillary, makes inorganic coagulation material and emulsion become organic one, adds the combination degree of mortar and matrix, be adsorbed on the surface of matrix firmly, improve cohesive strength.Improve the snappiness of mortar, reduce the backfin ratio of mortar.Described emulsion has good application property, weathering resistance and weather resistance.
Preferably, in solid ingredient, silicate cement, dry-process desulfurized ash, slag powders and ultrafine slag powder are that 1:0.02-0.06:0.2-0.35:0.1-0.3 forms composite gel system according to mass ratio, develop with ensure that the intensity energy fast and stable of polymer cement-based waterproof mortar.Ordinary Portland cement is as major gelled material, and slag powders early activity is a little less than cement, and the later stage is active in cement, and fineness is higher than cement simultaneously; Ultrafine slag powder not only has excellent early activity and later stage activity, and has very high fineness, has both reduced gelling system porosity, has played micro aggregate effect, had high reactivity again, can greatly improve mortar ultimate compression strength; Calcium sulfite composition in dry-process desulfurized ash plays sulphate activation to gelling system.Nano-attapulgite, can filling pore further as nano-sized filler, improves gelling system tap density.
Polymer cement-based waterproof mortar prepared by the present invention may be used for vault, pond and external wall elevation water-proof material, when applying, be 1:2.5-3.6 by the liquid ingredient of polymer cement-based waterproof mortar and solid ingredient according to weight ratio, preferably, weight ratio is the ratio mixing of 1:2.8-3.5, stir 2-5 minute, leave standstill and just can construct for 4-7 minute.
The invention has the beneficial effects as follows:
1, the polymer cement-based waterproof mortar that prepared by the present invention not only has high seepage-resistant grade, high ultimate compression strength and cohesive strength, anti-aging, easy construction, with low cost, and take full advantage of the metallurgical slags such as blast-furnace slag, dry-process desulfurized ash and slag, there is good economic benefit and social benefit.
2, the polymer cement-based waterproof mortar that prepared by the present invention not only can improve the contradiction between impervious and backfin ratio, ensure high seepage-resistant grade and high strength simultaneously, and emulsion and the adaptability problem mixing slag powders gelling system can be improved, give full play to high reactivity and the micro aggregate effect of ultrafine slag powder, under the compound action of attapulgite, obtain the tightly packed and waterproof mortar of film forming.
3, the polymer cement-based waterproof mortar that prepared by the present invention may be used for vault, pond and external wall elevation water-proof material.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
Embodiment 1:
Following raw material is taken according to weight part:
Liquid ingredient:
Above-mentioned raw materials is stirred, evenly.
Solid ingredient:
Above-mentioned solid ingredient is dropped into stirrer, even through high-speed stirring.Liquid ingredient and solid ingredient mix according to the ratio of weight ratio 1:3.5 and obtain polymer cement-based waterproof mortar.During use, be that 1:3.5 stirs 3-5 minute by the liquid ingredient of polymer cement-based waterproof mortar and solid ingredient according to weight ratio, leave standstill and just can construct for 4-7 minute.
Embodiment 2
Following raw material is taken according to weight part:
Liquid ingredient:
Solid ingredient:
Above-mentioned solid ingredient is dropped into stirrer, even through high-speed stirring.Liquid ingredient and solid ingredient mix according to the ratio of weight ratio 1:3.2 and obtain polymer cement-based waterproof mortar.During use, be that 1:3.2 stirs 3-5 minute by the liquid ingredient of polymer cement-based waterproof mortar and solid ingredient according to weight ratio, leave standstill and just can construct for 4-7 minute.
Embodiment 3
Following raw material is taken according to weight part:
Liquid ingredient:
Solid ingredient:
Above-mentioned solid ingredient is dropped into stirrer, even through high-speed stirring.Liquid ingredient and solid ingredient mix according to the ratio of weight ratio 1:3.0 and obtain polymer cement-based waterproof mortar.During use, be that 1:3.0 stirs 3-5 minute by the liquid ingredient of polymer cement-based waterproof mortar and solid ingredient according to weight ratio, leave standstill and just can construct for 4-7 minute.
Embodiment 4
Following raw material is taken according to weight part:
Solid ingredient:
Above-mentioned solid ingredient is dropped into stirrer, even through high-speed stirring.Liquid ingredient and solid ingredient mix according to the ratio of weight ratio 1:2.8 and obtain polymer cement-based waterproof mortar.During use, be that 1:2.8 stirs 3-5 minute by the liquid ingredient of polymer cement-based waterproof mortar and solid ingredient according to weight ratio, leave standstill and just can construct for 4-7 minute.
Polymer cement-based waterproof mortar in embodiment is carried out performance test, and concrete test result is as shown in the table:
Can find out from the test data table, polymer cement-based waterproof mortar prepared by the present invention has good impermeability, and ultimate compression strength and cohesive strength are also very high.
The above is preferred embodiment of the present invention, but the present invention should not be confined to the content disclosed in this embodiment.The equivalence completed under not departing from spirit disclosed in this invention so every or amendment, all fall into the scope of protection of the invention.
Claims (10)
1. a polymer cement-based waterproof mortar, is characterized in that, this waterproof mortar contains liquid ingredient and solid ingredient, and the weight ratio of described liquid ingredient and solid ingredient is 1:2.5-3.6;
Described liquid ingredient is:
Described solid ingredient is:
2. polymer cement-based waterproof mortar according to claim 1, is characterized in that: the emulsion in described liquid ingredient is one in styrene-butadiene emulsion or benzene emulsion or its mixture.
3. polymer cement-based waterproof mortar according to claim 1, is characterized in that: the defoamer in described liquid ingredient or in solid ingredient is polyether-modified dimethyl silicone oil.
4. polymer cement-based waterproof mortar according to claim 1, is characterized in that: the silicate cement in described solid ingredient is the one of 52.5 grades of ordinary Portland cements or 42.5 grades of ordinary Portland cements; The Blain specific surface of the GBFS in described solid ingredient is 350-450m
2/ kg, quality coefficient is 1.7-2.1.
5. polymer cement-based waterproof mortar according to claim 1, is characterized in that: the d97 particle diameter of the ultrafine slag powder in described solid ingredient is 5-20 μm, and Blain specific surface is 500-1000m
2/ kg, quality coefficient is 1.7-2.1.
6. polymer cement-based waterproof mortar according to claim 1, is characterized in that: the dry-process desulfurized ash in described solid ingredient is the waste of steel mill's sinter fume dry desulfurization, and its calcium sulfite content is 35-65%, and calcium carbonate content is 30-60%.
7. polymer cement-based waterproof mortar according to claim 1, is characterized in that: the river sand in described solid ingredient is siliceous sand, and fineness modulus is 2.2-2.6, and tap density is 1400-1500kg/m
3.
8. polymer cement-based waterproof mortar according to claim 1, is characterized in that: the thin steel slag particle in described solid ingredient is electric furnace through drum process process or bessemer furnace slag, and f-CaO<3%, particle diameter is 1-2.5mm.
9. polymer cement-based waterproof mortar according to claim 1, is characterized in that: the hyper-dispersant in described solid ingredient is polycarboxylic acid series hyper-dispersant.
10. polymer cement-based waterproof mortar as claimed in claim 1 is as the application method of water-proof material, it is characterized in that, be that 1:2.5-3.6 stirs 2-5 minute by the liquid ingredient of polymer cement-based waterproof mortar and solid ingredient according to weight ratio, leave standstill and just can construct for 4-7 minute.
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| CN201510862230.3A CN105503067A (en) | 2015-11-30 | 2015-11-30 | Polymer-cement based waterproof mortar and application thereof |
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Cited By (4)
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| CN106242445A (en) * | 2016-07-25 | 2016-12-21 | 秦文雄 | Environmental protection masonry mortar and production method thereof |
| CN106278069A (en) * | 2016-08-26 | 2017-01-04 | 派丽(上海)管理有限公司 | A kind of resisting sea water erosion densification water-repellent paint |
| CN106431120A (en) * | 2016-10-11 | 2017-02-22 | 陈谓清 | External-wall waterproof paint |
| CN112456935A (en) * | 2020-11-30 | 2021-03-09 | 武汉武新新型建材股份有限公司 | Wet-mixed plastering mortar containing all-steel plant solid waste components and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106242445A (en) * | 2016-07-25 | 2016-12-21 | 秦文雄 | Environmental protection masonry mortar and production method thereof |
| CN106278069A (en) * | 2016-08-26 | 2017-01-04 | 派丽(上海)管理有限公司 | A kind of resisting sea water erosion densification water-repellent paint |
| CN106431120A (en) * | 2016-10-11 | 2017-02-22 | 陈谓清 | External-wall waterproof paint |
| CN112456935A (en) * | 2020-11-30 | 2021-03-09 | 武汉武新新型建材股份有限公司 | Wet-mixed plastering mortar containing all-steel plant solid waste components and preparation method thereof |
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