CN114477898A - Super-soft impervious waterproof bonding material and construction method thereof - Google Patents
Super-soft impervious waterproof bonding material and construction method thereof Download PDFInfo
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- CN114477898A CN114477898A CN202210084598.1A CN202210084598A CN114477898A CN 114477898 A CN114477898 A CN 114477898A CN 202210084598 A CN202210084598 A CN 202210084598A CN 114477898 A CN114477898 A CN 114477898A
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Images
Classifications
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- 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
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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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/022—Carbon
- C04B14/026—Carbon of particular shape, e.g. nanotubes
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- 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
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/146—Silica fume
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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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/06—Oxides, Hydroxides
- C04B22/062—Oxides, Hydroxides of the alkali or alkaline-earth metals
- C04B22/064—Oxides, Hydroxides of the alkali or alkaline-earth metals of the alkaline-earth metals
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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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2623—Polyvinylalcohols; Polyvinylacetates
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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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2641—Polyacrylates; Polymethacrylates
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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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2676—Polystyrenes
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0885—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements specially adapted for being adhesively fixed to the wall; Fastening means therefor; Fixing by means of plastics materials hardening after application
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
- E04F21/023—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls for applying adhesive, e.g. glue or mortar, on the covering elements, in particular tiles
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
- E04F21/16—Implements for after-treatment of plaster or the like before it has hardened or dried, e.g. smoothing-tools, profile trowels
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
- E04F21/16—Implements for after-treatment of plaster or the like before it has hardened or dried, e.g. smoothing-tools, profile trowels
- E04F21/161—Trowels
- E04F21/162—Trowels with a blade having a notched or toothed edge
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0045—Polymers chosen for their physico-chemical characteristics
- C04B2103/0057—Polymers chosen for their physico-chemical characteristics added as redispersable powders
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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
- 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
- C04B2111/00637—Uses not provided for elsewhere in C04B2111/00 as glue or binder for uniting building or structural materials
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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
- 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
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Nanotechnology (AREA)
- Environmental & Geological Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses an ultra-soft anti-permeability waterproof bonding material which comprises, by weight, 15-40 parts of cement, 40-55 parts of graded river sand, 5-25 parts of mineral fillers, 1-15 parts of nano materials, 1-4 parts of redispersible latex powder, 0.25-1 part of a water retaining agent, 0.1-0.5 part of an early strength agent and 0.1-0.5 part of a sagging resistant agent, wherein the cement is PO42.5 or PO52.5 ordinary portland cement, the mineral fillers are gray calcium and silica fume, and the liquid component is water. The super-soft anti-permeability waterproof material realizes the balanced cooperation among all the components through the comprehensive proportioning of cement, mineral filler, redispersible latex powder, multi-walled carbon nano tubes and the like, achieves better bonding strength, flexibility, waterproof and anti-permeability effects, reduces the telescopic rate of a system, realizes the synchronous reduction of comprehensive cost and production energy consumption, and achieves the purposes of cost reduction, efficiency improvement, energy conservation and environmental protection.
Description
Technical Field
The invention belongs to the technical field of building decoration, and particularly relates to an ultra-soft anti-permeability bonding material and a construction method thereof.
Background
The tile adhesive can be used for paving facing materials such as ceramic tiles, mosaics, stones and the like, is mainly dry powder ready-mixed mortar consisting of cement, sand, mineral fillers and other auxiliary agents, and is widely applied to indoor building decoration areas. However, vitrified tiles, mosaics, rock plates, and ceramic slabs have low water absorption and high hardness. The characteristics of compact material and few gaps make it difficult to form firm bonding with cement-based bonding materials. Meanwhile, the sizes of the vitrified tiles, the rock plates and the ceramic large plates are larger and larger. In addition, the base layer is deformed by vibration, and quality problems such as hollowing, falling and the like are easily caused if the bonding material and the process are improperly controlled. In addition, because the common bonding material has low compactness and no anti-seepage and waterproof functions, the natural stone materials in water-involved areas such as basements, toilets, rail transit stations and the like have the pathological changes such as water spots, efflorescence, yellow spitting, slurry penetration and the like, and the artificial stone materials have the pathological changes such as arching, swelling and the like.
Chinese patent (CN104230271A) discloses a flexible tile adhesive, which comprises the following components in parts by mass: 5-15 parts of ordinary portland cement, 65-85 parts of filler, 0.15-0.3 part of cellulose ether, 8-15 parts of adhesive, 0.05-0.5 part of lignin fiber, 0.1-0.3 part of thixotropic agent and 0.1-0.2 part of water reducing agent. The application of the patent uses more redispersible latex powder, improves the bonding strength and the flexibility of the product, solves the problem of paving and pasting large-size vitrified tiles and rock plates, but has no waterproof and impervious functions and can not solve the problem of stone lesions in wet areas. Meanwhile, along with the increase of the mixing amount of the glue powder, the cost of the tile glue material is also obviously increased.
Chinese patent (CN 103613347A) discloses a waterproof tile adhesive material, which comprises the following components in parts by mass: 40-60 parts of cement, 40-50 parts of graded aggregate, 1-10 parts of mineral filling penetrating material, 0.5-3 parts of water-retaining agent, 0.1-1 part of defoaming agent, 0.1-0.5 part of anti-sagging agent and 0.1-1 part of water repellent; 0.5-2 parts of a high-efficiency water reducing agent, 2-5 parts of a redispersible latex powder, 0.1-1 part of anti-crack fibers, 0.1-2 parts of an anti-alkali-flooding agent, 0.1-0.5 part of a thixotropic lubricant, 3-5 parts of an expanding agent, 0.1-0.3 part of an early strength agent and 0.01-0.05 part of a retarder. The ceramic tile bonding material has solved the ceramic tile bonding material and can paste the ceramic tile, has to contract again and reduces, the compactness is strong and waterproof impervious function, nevertheless to the difference in temperature big, the basic unit warp big or easy vibration region spread when pasting big specification size vitrified tile, stone material, rock plate, the big board of pottery, its pliability can't satisfy the demand.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a bonding material which has ultrahigh bonding force, ultrahigh flexibility, ultralow shrinkage rate, impermeability and water resistance.
The technical scheme adopted by the scheme is as follows: the wall-mounted concrete comprises, by weight, 1: 0.25-0.3 of a powder component and a liquid component, wherein the powder component comprises 15-40 parts of cement, 40-60 parts of graded river sand, 5-25 parts of mineral fillers, 5-11 parts of nano materials, 1-4 parts of redispersible latex powder, 0.25-1 part of a water-retaining agent, 0.1-0.5 part of an early strength agent and 0.1-0.5 part of an anti-sagging agent, the cement is PO42.5 or PO52.5 ordinary portland cement, the mineral fillers are ash calcium and silica ash, the nano materials are multi-walled carbon nano tubes, and the liquid component is water.
The further improvement scheme aiming at the scheme is as follows:
1. in the scheme, the mesh number of the ash calcium is 300-500 meshes, the average particle size of the silica fume is 0.1-0.15 mu m, wherein the ash calcium accounts for 2-15 parts, and the silica fume accounts for 2-15 parts
2. In the scheme, the carbon nano tube is preferably a hydroxylated multi-wall carbon nano tube, the length of the hydroxylated multi-wall carbon nano tube is 0.5-2 mu m, and the purity is 95%.
3. In the scheme, the redispersible latex powder is one or more of ethylene-vinyl acetate copolymer, butadiene and styrene copolymer and acrylate rubber powder.
Wherein the ethylene-vinyl acetate copolymer accounts for 0.5-1.5 parts, the butadiene and styrene copolymer accounts for 0.2-2.5 parts, the ethylene-vinyl acetate is preferably watt 4115N or 5010N, the solid content is 98-100%, and the lowest film forming temperature is about 4 ℃; the butadiene-styrene copolymer is preferably Lawson AXILAT PSB 150, the solid content is 98-100%, and the lowest film-forming temperature is about 8 ℃; the acrylate rubber powder is preferably Mitsubishi 7000P, the solid content is 98-100%, and the lowest film forming temperature is about 0 ℃.
4. In the scheme, the water retaining agent is hydroxypropyl methyl cellulose ether or hydroxyethyl methyl cellulose ether, hydroxyl on cellulose ether molecules and oxygen atoms on ether bonds can be associated with water molecules to form hydrogen bonds, so that free water is changed into bound water, a good water retaining effect is achieved, the rheological property is improved, the selected hydroxypropyl methyl cellulose ether is preferably Heda 6100D, the fineness of the hydroxypropyl methyl cellulose ether is 80-100 meshes, the gel temperature of the hydroxypropyl methyl cellulose ether is 54-75 ℃, the viscosity is 40000mPa & s, the preferred hydroxyethyl methyl cellulose ether is Tianpu MH2020P, the gel temperature of the hydroxyethyl methyl cellulose ether is 75-90 ℃, and the viscosity is 40000mPa & s.
5. In the scheme, the early strength agent is calcium formate, the calcium formate is white fine crystals, the solid content of the calcium formate is 98-100%, the moisture content of the calcium formate is 0-0.5%, the calcium formate is 30-50%, the bulk density of the calcium formate is 900-1000 g/L, and the specific gravity of the calcium formate is 2.023(20 ℃).
6. In the scheme, the anti-sagging agent is starch ether, so that the yield stress value of the ready-mixed mortar can be greatly improved, the mortar can bear considerable shear stress without slipping, the falling ash in machine spraying working hours can be effectively reduced, the selected starch ether is preferably excelCon A850, the viscosity of the starch ether is 400-800 mPa & s, and the ash content of the starch ether is 18.5-19.5%.
In order to achieve the purpose, the scheme adopts a construction method of the super-soft impervious waterproof bonding material, and the construction method comprises the following steps:
s1: and (3) base surface treatment, namely cleaning impurities and dirt on the surface to be coated and keeping the surface to be coated clean and dry.
S2: and (3) mixing the bonding material, namely fully and uniformly mixing the cement, the multi-walled carbon nano tube, the redispersible latex powder, the water-retaining agent, the early strength agent and the anti-sagging agent, further uniformly stirring the mixture with the graded river sand, and mixing the mixed powder with water according to the weight ratio of 1: 0.25-0.3 to form the super-soft anti-permeability waterproof bonding material.
S3: and standing the stirred bonding material for 3-10 minutes.
S4: and scraping pulp grooves on the back surfaces of the base layer and the finish layer respectively by using a male tooth edge and a female tooth edge of the male tooth spatula and a female tooth edge of the female tooth spatula by using a double-sided parallel pulp scraping method, wherein the pulp of the male tooth edge and the pulp of the female tooth edge are mutually staggered and occluded during paving, and the finish layer and the bonding pulp layer are compacted to finish paving.
The adopted male and female tooth spatula is shown in the attached drawings 1-2 in detail, and specifically consists of a male tooth edge and a female tooth edge, the overall tooth shape of the male and female tooth spatula can be one of a square shape, a rectangular shape, a semicircular shape and a triangular shape, the tooth pitch between adjacent teeth is 6-15 mm, when the male and female tooth spatula is used specifically, the super-soft impervious waterproof bonding material and water are mixed and stirred uniformly according to the weight ratio of 1: 0.25-0.3, the mixture is kept stand for 3-10 minutes, a double-face parallel slurry scraping method is used, the male tooth edge of the male and female tooth spatula is used for scraping a slurry pull groove on a base layer, the female tooth edge of the male and female tooth spatula is used for scraping a slurry pull groove on the back face layer, the male tooth edge and the female tooth edge are staggered and meshed during paving, and finally the face layer is compacted to complete paving.
Based on the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. in the invention, cement is used as a main cementing material, the content is low, the shrinkage rate of a binder is favorably reduced, in addition, the gray calcium and the superfine silica fume are used as mineral filling materials, wherein the gray calcium not only can increase the construction hand feeling of the binding material, but also can be used as an excitation material, and can react with materials such as alumina and the like to generate products such as hydrated calcium silicate and the like in the early hydration stage, so that the strength of the binding material is further increased, in addition, the shrinkage of the cement-based material is mainly caused by that the water evaporation in a capillary tube is reduced, so that the surface tension is generated, and the silica fume is used as a filling material with superfine grain diameter, so that the capillary tube in the binding material can be blocked and filled, so that the shrinkage rate is greatly reduced.
2. The multi-wall carbon nanotube is formed by curling multi-layer carbon atoms, and is mostly in the shape of a film, a silk or a forest, because the carbon nanotube has large length-diameter ratio, good flexibility and easy bending, the multi-wall carbon nanotube has good strength and toughness. A certain amount of multi-wall carbon nano tubes are added, so that on one hand, the strength and flexibility of the bonding material can be improved due to the characteristics of the carbon nano tubes; on the other hand, in the hydration process, the polymer chains of the rubber powder are opened, the carbon nano tubes are connected with the polymer molecules of the rubber powder by Van der Waals force, the crosslinking degree of the polymer is improved to form a net structure, the tensile bonding strength can be increased, and the flexibility of the bonding material is greatly improved. In addition, the carbon nano tube and the silica fume are used as superfine materials, can be filled to the weak part of the mortar and have synergistic action, so that the strength of the weak part and the interface is increased, and the integral compactness and strength of the bonding material are improved.
3. The re-dispersible glue powder of the invention is composed of one or more of ethylene-vinyl acetate copolymer glue powder, butadiene and styrene copolymer glue powder and acrylate glue powder. The ethylene-vinyl acetate copolymer rubber powder contains more hydrophilic groups, and in the cement hydration process, a formed film can wrap cement particles to prevent the cement particles from contacting with water, so that the hydration speed of the cement is delayed. Compared with ethylene-vinyl acetate copolymer rubber powder, the butadiene and styrene copolymer rubber powder has the following advantages: 1) the water reducing agent contains more hydrophobic groups, plays a role in reducing water in the reaction process of cement, can increase the contact chance of cement particles and water, and plays a role in promoting cement hydration. 2) The adhesive film is formed by polymerizing styrene and butadiene, double bonds in the butadiene react with an ethylene-vinyl acetate copolymer rubber powder polymer, so that the crosslinking degree of the polymer is improved, the strength and flexibility of the polymer film are further improved, and the strength and flexibility of the adhesive material are further improved. 3) The C-C double bond of the adhesive material can not be hydrolyzed under the strong alkali condition, so that the waterproof and anti-permeability capability of the adhesive material is further improved. 4) The addition of the organic polymer composite material enables a composite symbiotic region in which organic polymer membrane structures and inorganic hydrate are symbiotic in a staggered mode to appear in the mortar, the polymer membranes form a net structure in the region, the flexibility of the material is improved, silica fume is cooperatively doped to serve as a filling material, the region can be filled with the ultrafine particle size of the organic polymer composite material, and the compactness of the material is improved.
Drawings
Fig. 1 is a schematic structural view of a base layer and a finish layer in a construction method of the super-soft, impervious and waterproof bonding material of the invention.
Fig. 2 is a schematic structural view of a male and female tooth spatula used in the construction method of the super-soft impervious waterproof bonding material of the invention.
Detailed Description
Example 1
The super-soft impervious waterproof material comprises a powder component and a liquid component in a weight ratio of 1:0.25, wherein the powder component comprises 15 parts of cement, 43.4 parts of graded river sand, 25 parts of mineral filler, 11 parts of a nano material, 4 parts of redispersible latex powder, 1 part of a water-retaining agent, 0.5 part of an early strength agent and 0.1 part of a sagging inhibitor, the cement is PO42.5 ordinary portland cement, the mineral filler is ash calcium and silica fume, the nano material is a multi-walled carbon nano tube, and the liquid component is water.
The mesh number of the ash calcium is 300-500 meshes, the average particle size of the silica fume is 0.1-0.15 mu m, wherein 10 parts of ash calcium and 15 parts of silica fume are contained.
The carbon nano tube is preferably a hydroxylated multi-wall carbon nano tube, the length of the hydroxylated multi-wall carbon nano tube is 0.5-2 mu m, and the purity is 95%.
The redispersible rubber powder consists of 1.5 parts of watt-gram 4115N rubber powder and 2.5 parts of Vast AXILAT PSB 150 rubber powder.
The water retaining agent is hydroxypropyl methyl cellulose ether or hydroxyethyl methyl cellulose ether, the fineness of the hydroxypropyl methyl cellulose ether is 80-100 meshes, the gel temperature of the hydroxypropyl methyl cellulose ether is 54-75 ℃, the viscosity of the hydroxypropyl methyl cellulose ether is 40000mPa & s, the gel temperature of the hydroxyethyl methyl cellulose ether is 75-90 ℃, and the viscosity of the hydroxyethyl methyl cellulose ether is 40000mPa & s.
The early strength agent is calcium formate, the solid content is 98-100%, the water content is 0-0.5%, the calcium content is 30-50%, and the bulk density is 900-1000 g/L.
The anti-sagging agent is starch ether, the viscosity of the anti-sagging agent is 400-800 mPa & s, and the ash content of the anti-sagging agent is 18.5-19.5%.
The construction method of the super-flexible impervious waterproof bonding material comprises the following steps:
s1: and (3) base surface treatment, namely cleaning impurities and dirt on the surface to be coated and keeping the surface to be coated clean and dry.
S2: mixing cement, multi-walled carbon nanotubes, redispersible latex powder, a water-retaining agent, an early strength agent and an anti-sagging agent, uniformly mixing the cement, the multi-walled carbon nanotubes, the redispersible latex powder, the water-retaining agent, the early strength agent and the anti-sagging agent, further uniformly stirring the mixture with graded river sand, and mixing the mixed powder with water according to a ratio of 1:0.25 weight ratio to form the super-soft impervious waterproof bonding material.
S3: and standing the stirred bonding material for 3-10 minutes.
S4: and scraping pulp grooves on the back surfaces of the base layer and the finish layer respectively by using a male tooth edge and a female tooth edge of the male tooth spatula and a female tooth edge of the female tooth spatula by using a double-sided parallel pulp scraping method, wherein the pulp of the male tooth edge and the pulp of the female tooth edge are mutually staggered and occluded during paving, and the finish layer and the bonding pulp layer are compacted to finish paving.
Example 2
The super-soft impervious waterproof material comprises a powder component and a liquid component in a weight ratio of 1:0.275, wherein the powder component comprises 20 parts of cement, 55.4 parts of graded river sand, 12 parts of mineral filler, 9 parts of nano material, 2 parts of redispersible latex powder, 1 part of water-retaining agent, 0.5 part of early strength agent and 0.1 part of anti-sagging agent, the cement is PO42.5 ordinary portland cement, the mineral filler is gray calcium and silica fume, the nano material is a multi-walled carbon nanotube, and the liquid component is water.
The mesh number of the ash calcium is 300-500 meshes, the average particle size of the silica fume is 0.1-0.15 mu m, 6.6 parts of ash calcium and 5.4 parts of silica fume.
The carbon nano tube is preferably a hydroxylated multi-wall carbon nano tube, the length of the hydroxylated multi-wall carbon nano tube is 0.5-2 mu m, and the purity is 95%.
The redispersible rubber powder consists of 1 part of wacker 4115N rubber powder and 1 part of Vaseline AXILAT PSB 150 rubber powder.
The water retaining agent is hydroxypropyl methyl cellulose ether or hydroxyethyl methyl cellulose ether, the fineness of the hydroxypropyl methyl cellulose ether is 80-100 meshes, the gelling temperature of the hydroxypropyl methyl cellulose ether is 54-75 ℃, the viscosity of the hydroxypropyl methyl cellulose ether is 40000mPa s, the gelling temperature of the hydroxyethyl methyl cellulose ether is 75-90 ℃, and the viscosity of the hydroxyethyl methyl cellulose ether is 40000mPa s.
The early strength agent is calcium formate, the solid content of the calcium formate is 98-100%, the water content of the calcium formate is 0-0.5%, the calcium formate content is 30-50%, and the bulk density of the calcium formate is 900-1000 g/L.
The anti-sagging agent is starch ether, the viscosity of the starch ether is 400-800 mPa.s, and the ash content is 18.5-19.5%.
The construction method of the super-flexible impervious waterproof bonding material comprises the following steps:
s1: and (3) base surface treatment, namely cleaning impurities and dirt on the surface to be coated and keeping the surface to be coated clean and dry.
S2: and (3) mixing the bonding material, namely fully and uniformly mixing cement, the multi-walled carbon nano tube, the redispersible latex powder, the water-retaining agent, the early strength agent and the anti-sagging agent, further uniformly stirring the mixture with the graded river sand, and mixing the mixed powder with water according to the weight ratio of 1:0.275 to form the super-soft impervious waterproof bonding material.
S3: and standing the stirred bonding material for 3-10 minutes.
S4: and scraping pulp grooves on the back surfaces of the base layer and the finish layer respectively by using a male tooth edge and a female tooth edge of the male tooth spatula and a female tooth edge of the female tooth spatula by using a double-sided parallel pulp scraping method, wherein the pulp of the male tooth edge and the pulp of the female tooth edge are mutually staggered and occluded during paving, and the finish layer and the bonding pulp layer are compacted to finish paving.
Example 3
The super-soft impervious waterproof material comprises a powder component and a liquid component in a weight ratio of 1:0.3, wherein the powder component comprises 30 parts of cement, 48.4 parts of graded river sand, 10 parts of mineral filler, 6 parts of nano material, 4 parts of redispersible latex powder, 1 part of water-retaining agent, 0.5 part of early strength agent and 0.1 part of anti-sagging agent, the cement is PO42.5 ordinary portland cement, the mineral filler is gray calcium and silica fume, the nano material is a multi-walled carbon nanotube, and the liquid component is water.
The mesh number of the ash calcium is 300-500 meshes, the average particle size of the silica fume is 0.1-0.15 mu m, 6 parts of the ash calcium and 4 parts of the silica fume.
The carbon nano tube is preferably a hydroxylated multi-wall carbon nano tube, the length of the hydroxylated multi-wall carbon nano tube is 0.5-2 mu m, and the purity of the carbon nano tube is 95%.
The redispersible rubber powder consists of 1.5 parts of watt-gram 4115N rubber powder and 2.5 parts of Vast AXILAT PSB 150 rubber powder.
The water retaining agent is hydroxypropyl methyl cellulose ether or hydroxyethyl methyl cellulose ether, the fineness of the hydroxypropyl methyl cellulose ether is 80-100 meshes, the gel temperature of the hydroxypropyl methyl cellulose ether is 54-75 ℃, the viscosity of the hydroxypropyl methyl cellulose ether is 40000mPa & s, the gel temperature of the hydroxyethyl methyl cellulose ether is 75-90 ℃, and the viscosity of the hydroxyethyl methyl cellulose ether is 40000mPa & s.
The early strength agent is calcium formate, the solid content of the calcium formate is 98-100%, the water content of the calcium formate is 0-0.5%, the calcium formate content is 30-50%, and the bulk density of the calcium formate is 900-1000 g/L.
The anti-sagging agent is starch ether, the viscosity of the starch ether is 400-800 mPa & s, and the ash content is 18.5-19.5%.
The construction method of the super-soft impervious waterproof bonding material comprises the following steps:
s1: and (3) base surface treatment, namely cleaning impurities and dirt on the surface to be coated and keeping the surface to be coated clean and dry.
S2: the adhesive material is mixed and constructed, cement, multi-walled carbon nano-tubes, redispersible latex powder, a water-retaining agent, an early strength agent and an anti-sagging agent are fully and uniformly mixed, and are further uniformly stirred with graded river sand, and the mixed powder is mixed with water according to the weight ratio of 1:0.3 to form the super-soft impervious waterproof adhesive material.
S3: and standing the stirred bonding material for 3-10 minutes.
S4: and scraping pulp grooves on the back surfaces of the base layer and the finish layer respectively by using a male tooth edge and a female tooth edge of the male tooth spatula and a female tooth edge of the female tooth spatula by using a double-sided parallel pulp scraping method, wherein the pulp of the male tooth edge and the pulp of the female tooth edge are mutually staggered and occluded during paving, and the finish layer and the bonding pulp layer are compacted to finish paving.
Example 4
The super-soft impervious waterproof material comprises a powder component and a liquid component in a weight ratio of 1:0.275, wherein the powder component comprises 25 parts of cement, 55.4 parts of graded river sand, 7 parts of mineral filler, 8 parts of nano material, 3 parts of redispersible latex powder, 1 part of water-retaining agent, 0.5 part of early strength agent and 0.1 part of anti-sagging agent, the cement is PO42.5 ordinary portland cement, the mineral filler is gray calcium and silica fume, the nano material is a multi-walled carbon nanotube, and the liquid component is water.
The mesh number of the ash calcium is 300-500 meshes, the average particle size of the silica fume is 0.1-0.15 mu m, the ash calcium accounts for 4.2 parts, and the silica fume accounts for 2.8 parts.
The carbon nano tube is preferably a hydroxylated multi-wall carbon nano tube, the length of the hydroxylated multi-wall carbon nano tube is 0.5-2 mu m, and the purity of the hydroxylated multi-wall carbon nano tube is 95%.
The redispersible rubber powder consists of 1.2 parts of watt-gram 4115N rubber powder and 1.8 parts of Vast AXILAT PSB 150 rubber powder.
The water retaining agent is hydroxypropyl methyl cellulose ether or hydroxyethyl methyl cellulose ether, the fineness of the hydroxypropyl methyl cellulose ether is 80-100 meshes, the gel temperature of the hydroxypropyl methyl cellulose ether is 54-75 ℃, the viscosity of the hydroxypropyl methyl cellulose ether is 40000mPa & s, the gel temperature of the hydroxyethyl methyl cellulose ether is 75-90 ℃, and the viscosity of the hydroxyethyl methyl cellulose ether is 40000mPa & s.
The early strength agent is calcium formate, the solid content of the calcium formate is 98-100%, the water content of the calcium formate is 0-0.5%, the calcium formate content is 30-50%, and the bulk density of the calcium formate is 900-1000 g/L.
The anti-sagging agent is starch ether, the viscosity of the starch ether is 400-800 mPa & s, and the ash content is 18.5-19.5%.
The construction method of the super-flexible impervious waterproof bonding material comprises the following steps:
s1: and (3) base surface treatment, namely cleaning impurities and dirt on the surface to be coated and keeping the surface to be coated clean and dry.
S2: and (3) mixing the bonding material, namely fully and uniformly mixing cement, the multi-walled carbon nano tube, the redispersible latex powder, the water-retaining agent, the early strength agent and the anti-sagging agent, further uniformly stirring the mixture with the graded river sand, and mixing the mixed powder with water according to the weight ratio of 1:0.275 to form the super-soft impervious waterproof bonding material.
S3: and standing the stirred bonding material for 3-10 minutes.
S4: and scraping pulp grooves on the back surfaces of the base layer and the finish layer respectively by using a male tooth edge and a female tooth edge of the male tooth spatula and a female tooth edge of the female tooth spatula by using a double-sided parallel pulp scraping method, wherein the pulp of the male tooth edge and the pulp of the female tooth edge are mutually staggered and occluded during paving, and the finish layer and the bonding pulp layer are compacted to finish paving.
Example 5
The super-soft impervious waterproof material comprises a powder component and a liquid component in a weight ratio of 1:0.3, wherein the powder component comprises 40 parts of cement, 47.4 parts of graded river sand, 5 parts of mineral filler, 5 parts of nano material, 1 part of redispersible latex powder, 1 part of water-retaining agent, 0.5 part of early strength agent and 0.1 part of anti-sagging agent, the cement is PO42.5 ordinary portland cement, the mineral filler is gray calcium and silica fume, the nano material is a multi-walled carbon nanotube, and the liquid component is water.
The mesh number of the ash calcium is 300-500 meshes, the average particle size of the silica fume is 0.1-0.15 mu m, wherein the ash calcium accounts for 3 parts, and the silica fume accounts for 2 parts.
The carbon nano tube is preferably a hydroxylated multi-wall carbon nano tube, the length of the hydroxylated multi-wall carbon nano tube is 0.5-2 mu m, and the purity of the hydroxylated multi-wall carbon nano tube is 95%.
The said redispersible rubber powder is composed of rubber powder (0.75 portion) w/g 4115N and rubber powder (0.25 portion) Vansen AXILAT PSB 150.
The water retaining agent is hydroxypropyl methyl cellulose ether or hydroxyethyl methyl cellulose ether, the fineness of the hydroxypropyl methyl cellulose ether is 80-100 meshes, the gel temperature of the hydroxypropyl methyl cellulose ether is 54-75 ℃, the viscosity of the hydroxypropyl methyl cellulose ether is 40000mPa & s, the gel temperature of the hydroxyethyl methyl cellulose ether is 75-90 ℃, and the viscosity of the hydroxyethyl methyl cellulose ether is 40000mPa & s.
The early strength agent is calcium formate, the solid content of the calcium formate is 98-100%, the water content of the calcium formate is 0-0.5%, the calcium content is 30-50%, and the bulk density of the calcium formate is 900-1000 g/L.
The anti-sagging agent is starch ether, the viscosity of the starch ether is 400-800 mPa & s, and the ash content is 18.5-19.5%.
The construction method of the super-flexible impervious waterproof bonding material comprises the following steps:
s1: and (3) base surface treatment, namely cleaning impurities and dirt on the surface to be coated and keeping the surface to be coated clean and dry.
S2: the adhesive material is mixed and constructed, cement, multi-walled carbon nano-tubes, redispersible latex powder, a water-retaining agent, an early strength agent and an anti-sagging agent are fully and uniformly mixed, and are further uniformly stirred with graded river sand, and the mixed powder is mixed with water according to the weight ratio of 1:0.3 to form the super-soft impervious waterproof adhesive material.
S3: and standing the stirred bonding material for 3-10 minutes.
S4: and scraping the pulp on the back surfaces of the base layer and the finishing layer respectively by using a male tooth edge and a female tooth edge of the male tooth and female tooth edge of the female tooth spatula and using a double-sided parallel pulp scraping method, wherein the pulp on the male tooth edge and the pulp on the female tooth edge are mutually staggered and occluded during paving, and the finishing layer and the bonding pulp layer are compacted to finish paving.
Comparative example 1
Chinese patent (CN104230271A) discloses a flexible tile adhesive, which is prepared by uniformly mixing 15 parts by mass of 42.5R ordinary portland cement, 28.8 parts by mass of 40-80 mesh washed river sand, 40 parts by mass of 80-120 mesh quartz sand, 0.3 part by mass of hydroxypropyl methyl cellulose ether, 15 parts by mass of copolymer powder of vinyl acetate and higher fatty acid vinyl ester, 0.5 part by mass of lignin fiber, 0.3 part by mass of thixotropic agent and 0.1 part by mass of water reducing agent, and then stirring the materials and water.
Comparative example 2
Chinese patent (CN 103613347A) discloses a waterproof tile adhesive material, which is prepared by uniformly mixing 40 parts of cement, 40 parts of graded aggregate, 1 part of mineral filling permeable material, 0.5 part of water retention agent, 0.1 part of defoaming agent, 0.1 part of anti-sagging agent, 0.1 part of water repellent, 0.5 part of high-efficiency water reducing agent, 2 parts of redispersible latex powder, 0.1 part of anti-crack fiber, 0.1 part of anti-alkali-flooding agent, 0.1 part of thixotropic lubricant, 3 parts of expanding agent, 0.1 part of early strength agent and 0.01 part of retarder by mass ratio of 1:0.2, and then stirring the material and water.
In summary, the super-flexible impervious waterproof bonding material prepared in the examples 1 to 5 is tested for bonding strength performance and flexibility according to relevant regulations in standard JC/T547-2017 ceramic tile adhesive, and for seepage pressure resistance and shrinkage rate according to relevant regulations in JC/T984-2011 polymer cement waterproof mortar, and compared with the data disclosed in the listed comparative examples 1 to 2, the comparison results are detailed in the following tables 1 to 5:
table 1:
according to the invention, by adding the silica fume, the ash calcium and the carbon nano tubes, the ash calcium as an exciting substance can fully exert the pozzolanic activity of the silica fume in the cement hydration process, and promote the generation of products such as hydrated calcium silicate and the like. Secondly, the carbon nano tubes are connected with polymer molecules of the rubber powder by Van der Waals force in the hydration process, the crosslinking degree of the polymer is improved to form a net structure, the net structure cannot be decomposed under the condition of thermal aging at 70 ℃, and the tensile bonding strength after thermal aging are greatly improved. The special C-C double bond structure of the butadiene-styrene copolymer rubber powder is not hydrolyzed under the alkaline water condition, so that a polymer network structure formed in the mortar is not decomposed, and the tensile bonding strength after soaking can be obviously improved. It can be seen from the data in table 1 that there is a linear relationship between the total parts of cement and sand and the total parts of the filler, rubber powder and carbon nanotubes and the tensile bond strength, and when the ratio is about 1:0.2, the tensile bond strength is the highest because the components such as the filler, rubber powder and the like are uniformly distributed in the cement mortar and exert the optimal performance, and the ratio of the total parts of cement and sand to the total parts of the filler, rubber powder and carbon nanotubes in example 4 is about 1:0.23, so the tensile bond strength is the highest.
Table 2:
according to the invention, the carbon nano tube is added, so that on one hand, due to the characteristics of extremely easy bending and good flexibility of the material, the flexibility of the bonding material is improved, and on the other hand, in the hydration process, the carbon nano tube is connected with polymer molecules of the rubber powder by van der Waals force due to the extremely large length-diameter ratio of the carbon nano tube, so that the crosslinking degree of the polymer is improved, and the flexibility of the bonding material is greatly improved. As can be seen from the data in table 2, the lateral deformability of the adhesive material tends to increase and decrease with the increase of the carbon nanotubes, because the surface energy of the carbon nanotubes is larger, and when the amount of the carbon nanotubes is more than 6 parts, the agglomeration phenomenon occurs, which results in a slightly poor lateral deformability of the test piece. The mixing amount of the rubber powder in the embodiment 1 and the embodiment 3 is 4 parts, while the carbon nano tubes in the embodiment 1 are more, and the transverse deformation capability is reduced due to the agglomeration phenomenon.
Table 3:
according to the invention, the superfine material silica fume and the carbon nano tube are added and can be filled in the weak part of the mortar, so that the overall compactness of the bonding material is improved, and meanwhile, the carbon nano tube and the rubber powder have a crosslinking effect, so that the performance of a polymer film is greatly improved, the moisture is prevented from migrating in the bonding material, and the waterproof and anti-permeability capability of the bonding material is improved. As can be seen from the data in table 3, as the ratio of the carbon nanotubes to the rubber powder is gradually increased, the barrier properties of the adhesive material show a tendency of increasing first and then decreasing. In addition, test tests show that when the ratio of the carbon nano tubes to the rubber powder is about 2.5:1, the carbon nano tubes improve the crosslinking degree of the polymer film to the maximum extent and form a compact net structure, and the waterproof and anti-permeability performance of the bonding material is the best. The proportions of the carbon nanotubes and the rubber powder in example 1 and example 4 were 2.75:1 and 2.67:1, respectively, and thus the permeation pressure resistance was good.
Table 4:
the shrinkage of cement-based materials is mainly caused by the reduced evaporation of water within the capillary tubes, creating surface tension. According to the invention, by reducing cement and adding the silica fume and the carbon nano tubes, on one hand, the shrinkage caused by the cement is reduced, on the other hand, most of capillary tubes are filled with the silica fume and the carbon nano tubes, the overall compactness is improved, and the shrinkage rate of the bonding material is reduced. As can be seen from the data in Table 4, the shrinkage rates of examples 1 to 5 increased as the cement content increased. Meanwhile, both example 5 and comparative example 2 incorporate 40 parts of cement, but the shrinkage of example 5 is low because the silica fume and the carbon nanotubes increase the compactness of the material, thereby reducing the shrinkage.
Table 5:
as can be seen from the comparative data in the table above, the super-soft impervious waterproof bonding material related by the invention is far higher than the two comparative data in the aspects of bonding strength, flexibility and impervious pressure, and the shrinkage rate is far lower than the two comparative data. The comprehensive performance of the embodiment 4 is superior to that of the other four groups of embodiments because the mixing amount of the cement, the mineral filler, the redispersible latex powder and the multi-wall carbon nano tube in the powder component reaches a balanced proportion, the components fully play a synergistic effect, the good bonding strength, the good flexibility, the good waterproof and anti-seepage effects are achieved, and the shrinkage rate of the system is correspondingly reduced. In addition, the invention greatly reduces the mixing amount of the redispersible rubber powder and the cement, reduces the comprehensive cost and the production energy consumption, and realizes the purposes of energy conservation, environmental protection, cost reduction and efficiency improvement.
Claims (8)
1. The super-soft impervious waterproof bonding material is characterized in that: the cement-based multi-wall carbon nano tube coating material is composed of a powder component and a liquid component in a weight ratio of 1: 0.25-0.3, wherein the powder component comprises 15-40 parts of cement, 40-60 parts of graded river sand, 5-25 parts of mineral filler, 5-11 parts of nano material, 1-4 parts of redispersible latex powder, 0.25-1 part of water retaining agent, 0.1-0.5 part of early strength agent and 0.1-0.5 part of anti-sagging agent, the cement is PO42.5 or PO52.5 ordinary portland cement, the mineral filler is ash calcium and silicon ash, the nano material is a multi-wall carbon nano tube, and the liquid component is water.
2. The ultra-soft, impervious, waterproof bonding material of claim 1 wherein: the mesh number of the ash calcium is 300-500 meshes, the average particle size of the silica fume is 0.1-0.15 mu m, the ash calcium accounts for 2-15 parts, and the silica fume accounts for 2-15 parts.
3. The ultra-soft, impervious, waterproof bonding material of claim 1 wherein: the carbon nano tube is preferably a hydroxylated multi-wall carbon nano tube, the length of the hydroxylated multi-wall carbon nano tube is 0.5-2 mu m, and the purity of the hydroxylated multi-wall carbon nano tube is 95%.
4. The ultra-soft, impervious, waterproof bonding material of claim 1 wherein: the redispersible rubber powder is one or more of ethylene-vinyl acetate copolymer, butadiene-styrene copolymer and acrylate rubber powder, wherein the ethylene-vinyl acetate copolymer accounts for 0.5-1.5 parts, the butadiene copolymer accounts for 0.2-2.5 parts, the ethylene-vinyl acetate has a solid content of 98-100%, the lowest film forming temperature is about 4 ℃, the butadiene-styrene copolymer has a solid content of 98-100%, the lowest film forming temperature is about 8 ℃, the acrylate rubber powder has a solid content of 98-100%, and the lowest film forming temperature is about 0 ℃.
5. The ultra-soft, impervious, waterproof bonding material of claim 1 wherein: the water retaining agent is hydroxypropyl methyl cellulose ether or hydroxyethyl methyl cellulose ether, the fineness of the hydroxypropyl methyl cellulose ether is 80-100 meshes, the gel temperature of the hydroxypropyl methyl cellulose ether is 54-75 ℃, the viscosity of the hydroxypropyl methyl cellulose ether is 40000mPa & s, the gel temperature of the viscosity of the hydroxyethyl methyl cellulose ether is 75-90 ℃, and the viscosity of the hydroxyethyl methyl cellulose ether is 40000mPa & s.
6. The ultra-soft, impervious, waterproof bonding material of claim 1 wherein: the early strength agent is calcium formate, the solid content of the calcium formate is 98-100%, the water content of the calcium formate is 0-0.5%, the calcium formate is 30-50%, and the bulk density of the calcium formate is 900-1000 g/L.
7. The ultra-soft, impervious, waterproof bonding material of claim 1 wherein: the anti-sagging agent is starch ether, the viscosity of the starch ether is 400-800 mPa & s, and the ash content of the starch ether is 18.5-19.5%.
8. The construction method of the super-soft impervious waterproof adhesive material according to any one of claims 1 to 7, wherein:
s1: and (3) base surface treatment, namely cleaning impurities and dirt on the surface to be coated and keeping the surface to be coated clean and dry.
S2: and (3) mixing the bonding material, namely fully and uniformly mixing the cement, the multi-walled carbon nano tube, the redispersible latex powder, the water-retaining agent, the early strength agent and the anti-sagging agent, further uniformly stirring the mixture with the graded river sand, and mixing the mixed powder with water according to the weight ratio of 1: 0.25-0.3 to form the super-soft anti-permeability waterproof bonding material.
S3: and standing the stirred bonding material for 3-10 minutes.
S4: and scraping pulp grooves on the back surfaces of the base layer and the finish layer respectively by using a male tooth edge and a female tooth edge of the male tooth spatula and a female tooth edge of the female tooth spatula by using a double-sided parallel pulp scraping method, wherein the pulp of the male tooth edge and the pulp of the female tooth edge are mutually staggered and occluded during paving, and the finish layer and the bonding pulp layer are compacted to finish paving.
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Application publication date: 20220513 |