CN109665768A - A kind of concrete drain tile surface coating material and preparation method thereof - Google Patents
A kind of concrete drain tile surface coating material and preparation method thereof Download PDFInfo
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- CN109665768A CN109665768A CN201811392817.2A CN201811392817A CN109665768A CN 109665768 A CN109665768 A CN 109665768A CN 201811392817 A CN201811392817 A CN 201811392817A CN 109665768 A CN109665768 A CN 109665768A
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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
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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
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00508—Cement paints
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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 present invention relates to a kind of concrete drain tile surface coating materials and preparation method thereof, and the coating is prepared by the raw material of following parts by weight: 5-10 parts of white cement, 40-50 parts of polyvinyl acetate emulsion, 5-10 parts of glue, 6-12 parts of powdered whiting, 2-7 parts of air-entrainment, 5-10 parts of swelling agent, 5-10 parts of additive；The additive is prepared by the raw material of following parts by weight: 3-4 parts of hexamethyl cyclotrisiloxane, 2-3 parts of trifluoroethyl methacrylate, 1-2 parts of hexadecyltrimethylammonium chloride, 80-90 parts of high density poly propylene, 2-5 parts of naphthalene sulfonate, 35-45 parts of aggregate.A kind of coating improving concrete drain tile surface layer anti-permeability performance of the present invention.
Description
Technical field
The present invention relates to concrete drain tile field, especially a kind of concrete drain tile surface coating material and its preparation side
Method.
Background technique
Drainpipe mainly undertakes the task of the drainings such as rainwater, sewage, farmland discharging-irrigating.Drainpipe be respectively plastic drain-pipe,
Concrete and reinforced concrete pipe.Pipe of concrete is since its structure is simple, at low cost, to be widely used.
Concrete drain tile can cause volume to be received in pouring hardening process due to chemical shrinkage, shrinkage, drying shrinkage etc.
Contracting, shrinkage value are about the 0.04%~0.06% of own vol, and phenomenon has concrete cracking destruction, concrete permeability resistance not
It is good to cause seepage failure.
Swelling agent is mixed in concrete can prepare expansive concrete, also known as expansive concrete.Currently, swelled mixture
Solidifying soil is applied to road and bridge engineering, underground protective engineering and concrete filled steel tube because of its excellent crack prevention and crack resistance performance characteristics
It comes to nothing the fields such as processing, structure repair.Therefore, concrete drain tile coating expansive concrete coating can further increase coagulation
The barrier properties of native drainpipe.Concrete drain tile technical requirements require higher than normal concrete, it is desirable that high permeability resistant, pressure resistance
Property, frost resistance, durability, and to require early stage moisture-keeping maintaining to require higher for Large Diameter Pipeline, to guarantee product quality, therefore in product surface
Increase coating, to reach the requirement of drainpipe construction quality.Therefore, the coating for improving concrete draining barrier performance is to be worth research
Project field.
Summary of the invention
The present invention is above-mentioned in order to solve the problems, such as, provides a kind of raising concrete drain tile surface layer anti-permeability performance
Coating.
The technical solution adopted by the present invention to solve the technical problems is: a kind of concrete drain tile surface coating material, described
Coating be prepared by the raw material of following parts by weight: 5-10 parts of white cement, 40-50 parts of polyvinyl acetate emulsion, glue 5-10
Part, 6-12 parts of powdered whiting, 2-7 parts of air-entrainment, 5-10 parts of swelling agent, 5-10 parts of additive；
The additive is prepared by the raw material of following parts by weight: 3-4 parts of hexamethyl cyclotrisiloxane, metering system
Sour trifluoro ethyl ester 2-3 parts, 1-2 parts of hexadecyltrimethylammonium chloride, 80-90 parts of high density poly propylene, 2-5 parts of naphthalene sulfonate,
35-45 parts of aggregate；
The swelling agent is prepared by the raw material of following parts by weight: the mixture 25- of ca aluminosilicate and calcium sulphoaluminate
30 parts, 10-20 parts of red mud, 10-15 parts of lithium slag, 4-8 parts of calcium oxide, 3-6 parts of magnesia, 5-8 parts of sodium methyl silicate, dodecyl
2-4 parts of sodium sulphate, 0.2-0.5 parts of ethylene-acrylic acid copolymer, 0.7-1 parts of polycarboxylate water-reducer, 1-3 parts of polypropylene fibre,
8-10 parts of flyash, 5-10 parts of carboxymethyl cellulose.
Preferably, the coating is prepared by the raw material of following parts by weight: 9 parts of white cement, poly vinyl acetate emulsion
50 parts of liquid, 6 parts of glue, 7 parts of powdered whiting, 4 parts of air-entrainment, 7 parts of swelling agent, 8 parts of additive.
Preferably, the additive is prepared by the raw material of following parts by weight: 3 parts of hexamethyl cyclotrisiloxane, first
2 parts of base acrylic acid trifluoro ethyl ester, 2 parts of hexadecyltrimethylammonium chloride, 85 parts of high density poly propylene, 3 parts of naphthalene sulfonate, bone
35 parts of material.
Preferably, the swelling agent is prepared by the raw material of following parts by weight: ca aluminosilicate and calcium sulphoaluminate
26 parts of mixture, 12 parts of red mud, 11 parts of lithium slag, 6 parts of calcium oxide, 5 parts of magnesia, 6 parts of sodium methyl silicate, lauryl sodium sulfate
3 parts, 0.3 part of ethylene-acrylic acid copolymer, 1 part of polycarboxylate water-reducer, 2 parts of polypropylene fibre, 9 parts of flyash, carboxymethyl fibre
9 parts of dimension element.
The present invention also provides the preparation method of above-mentioned concrete drain tile surface coating material, step (1) is matched by weight
Than by high density poly propylene, aggregate, hexamethyl cyclotrisiloxane, trifluoroethyl methacrylate, cetyl trimethyl chlorination
Ammonium and naphthalene sulfonate are mixed, and additive is made；
Step (2) by sodium methyl silicate, lauryl sodium sulfate, ethylene-acrylic acid copolymer part, polycarboxylate water-reducer,
Polypropylene fibre, the mixture of ca aluminosilicate and calcium sulphoaluminate, red mud, lithium slag such as are added at the pure water of quality by weight ratio
In heated, be stirred, it is fine that calcium oxide, magnesia, flyash, carboxymethyl be added by weight ratio again after mixing
Dimension element, is stirred, and cooling filtering, drying obtains swelling agent；
Step (3) is by white cement, polyvinyl acetate emulsion, glue, powdered whiting, air-entrainment, swelling agent and additive
It is mixed by weight ratio.
Further, in rapid (1), first by after high density poly propylene and aggregate mixed melting by weight ratio,
The hexamethyl cyclotrisiloxane, trifluoroethyl methacrylate, hexadecyltrimethylammonium chloride and naphthalene of corrresponding quality part is added
Sulfonate is mixed, and additive is made.
Further, comprise the following steps in step (2): step (21) is by sodium methyl silicate, lauryl sodium sulfate, second
Alkene-acrylic copolymer part, polycarboxylate water-reducer, polypropylene fibre mixing, stir evenly, obtain inorganic agent；
The mixture of ca aluminosilicate and calcium sulphoaluminate, red mud, lithium slag the quality such as are added by step (22) by weight ratio
Pure water in heated, be stirred, after mixing again by weight ratio be added calcium oxide, magnesia, flyash,
Carboxymethyl cellulose is stirred, and cooling filtering, drying obtains mixture；
Inorganic agent is stirred by step (23) with mixture to be mixed, and swelling agent is obtained.
Further, in the step (22), first the mixture of ca aluminosilicate and calcium sulphoaluminate, red mud, lithium slag are pressed
Weight is added in pulverizer and crushes, and after crossing 120~220 meshes, then carries out being heated to 60 degree, be stirred.
It further, by weight ratio will be by white cement, polyvinyl acetate emulsion, heavy carbonic acid in the step (3)
Calcium mixing, is heated to 60 degree and uniform stirring, glue, air-entrainment, swelling agent and additive is successively added by weight ratio,
It is cooled down after even stirring.
The beneficial effects of the present invention are: a kind of concrete drain tile surface coating material, polyvinyl acetate emulsion has gluing strong
Spend the features such as higher, curing rate is very fast, easy to use, cheap, non-toxic and safe, non-environmental-pollution；Powdered whiting tool
Have that chemical purity is high, inertia is big, be not easy to chemically react, thermal stability is good, will not decompose at 400 DEG C or less, whiteness height, oil absorbency
It is low, index of refraction is low, matter is soft, dry, excellent without the crystallization water, small, nontoxic, tasteless, the odorless, good dispersion of the low wearing valve of hardness etc.
Point；Enhance expansion effect；The effective hydrophobic properties of the surface for improving finished product coating, enhance the quality of coating；Good infiltration
Crystallinity and micro-expansibility can not only improve the intensity of concrete, moreover it is possible to improve the compensation performance of swelling agent.
Specific embodiment
Embodiment 1
A kind of concrete drain tile surface coating material, the coating are prepared by the raw material of following parts by weight: white cement 9
Part, 50 parts of polyvinyl acetate emulsion, 6 parts of glue, 7 parts of powdered whiting, 4 parts of air-entrainment, 7 parts of swelling agent, 8 parts of additive.
The additive is prepared by the raw material of following parts by weight: 3 parts of hexamethyl cyclotrisiloxane, methacrylic acid
2 parts of trifluoro ethyl ester, 2 parts of hexadecyltrimethylammonium chloride, 85 parts of high density poly propylene, 3 parts of naphthalene sulfonate, 35 parts of aggregate.
The swelling agent is prepared by the raw material of following parts by weight: the mixture 26 of ca aluminosilicate and calcium sulphoaluminate
Part, 12 parts of red mud, 11 parts of lithium slag, 6 parts of calcium oxide, 5 parts of magnesia, 6 parts of sodium methyl silicate, 3 parts of lauryl sodium sulfate, second
0.3 part of alkene-acrylic copolymer, 1 part of polycarboxylate water-reducer, 2 parts of polypropylene fibre, 9 parts of flyash, carboxymethyl cellulose 9
Part.
Embodiment 2
A kind of concrete drain tile surface coating material, the coating are prepared by the raw material of following parts by weight: white cement 5
Part, 40 parts of polyvinyl acetate emulsion, 7 parts of glue, 12 parts of powdered whiting, 6 parts of air-entrainment, 10 parts of swelling agent, 6 parts of additive；
Polyvinyl acetate emulsion have gluing intensity is higher, curing rate is very fast, easy to use, cheap, non-toxic and safe, without environment
The features such as pollution；Powdered whiting have chemical purity is high, inertia is big, be not easy to chemically react, thermal stability is good, 400 DEG C with
Under will not decompose, whiteness is high, oil absorbency is low, index of refraction is low, matter is soft, it is dry, be free of the crystallization water, the low wearing valve of hardness it is small, it is nontoxic,
The advantages that tasteless, odorless, good dispersion；
The additive is prepared by the raw material of following parts by weight: 4 parts of hexamethyl cyclotrisiloxane, methacrylic acid
3 parts of trifluoro ethyl ester, 1 part of hexadecyltrimethylammonium chloride, 80 parts of high density poly propylene, 5 parts of naphthalene sulfonate, 45 parts of aggregate；Add
Having entered polycarboxylate water-reducer hexamethyl cyclotrisiloxane, trifluoroethyl methacrylate, hexadecyltrimethylammonium chloride can
The effective hydrophobic properties of the surface for improving finished product coating, enhance the quality of coating；
The swelling agent is prepared by the raw material of following parts by weight: the mixture 30 of ca aluminosilicate and calcium sulphoaluminate
Part, 17 parts of red mud, 14 parts of lithium slag, 7 parts of calcium oxide, 4 parts of magnesia, 8 parts of sodium methyl silicate, 4 parts of lauryl sodium sulfate, second
0.5 part of alkene-acrylic copolymer, 0.7 part of polycarboxylate water-reducer, 1 part of polypropylene fibre, 8 parts of flyash, 5 parts of magnesia.
Ca aluminosilicate is mixed with calcium sulphoaluminate, enhances expansion effect, meanwhile, have also combined calcium oxide and oxidation
Magnesium expansion sources, act synergistically, and improve compensation ability.Gu sulphur waste residue mainly contain SiO2, Al2O3, Fe2O3, CaO, SO3,
F-CaO, and containing a certain amount of anhydrous CaSO4 and a small amount of MgO etc., in concrete hydration reaction generate a large amount of entringite and
Cause Behavior of Hardened Cement Paste to expand, further increases compensation ability.Red mud has that cementing hole rack-like structure, hole be more, large specific surface area
Etc. features containing SiO2, Al2O3 etc. in lithium slag, compensation ability can be improved and containing Al2O3, Fe2O3, CaO etc. in its ingredient
With early strength, later strength.By calcium oxide, so that calcium oxide surface is formed composite membrane, efficiently controlled hydration rate, subtracted
Speed of expansion is delayed, has made most of plastic stage for expanding and occurring after concrete generates intensity, improve expansion.Methyl
Sodium metasilicate has water retention, as aquation carries out slow release moisture, provides water source for calcium oxide, promotes expansion hair
It is raw.Furthermore it is compounded with magnesia, the expansion time can be extended, effective compensation concrete early-age shrinkage and later period shrink, effectively
The pre- cracking-proof in ground generates.In addition, sodium tripolyphosphate plays deferred action, calcium oxide expansion in solid sulphur waste residue and red mud can be slowed down and made
With making the expansion effect of swelling agent more preferably.Sodium methyl silicate has good penetrant crystalline and micro-expansibility, can not only improve
The intensity of concrete, moreover it is possible to improve the compensation performance of swelling agent.
Its additive plays foaming effect, can be formed in concrete tiny, equally distributed and remained to after curing
The defects of keeping microbubble, can compensate for the sedimentation contraction of raw material components, greatly reduce crackle, extends the service life, polycarboxylic acids diminishing
The effect of agent, raising water-reducing agent, and excellent expansion character.
The dedicated additional gas agent of concrete has been used, water-cement ratio is controlled, has improved drainpipe quality, for mixed with consideration Large Diameter Pipeline
The influence that solidifying soil drainpipe conserves after forming to product early stage, to reach and reduce the thermal energy of aquation early period generation.
Embodiment 3
Method of the preparation such as concrete drain tile surface coating material in embodiment 1 or 2:
Step (1) is by weight ratio by high density poly propylene, aggregate, hexamethyl cyclotrisiloxane, methacrylic acid three
Fluorine ethyl ester, hexadecyltrimethylammonium chloride and naphthalene sulfonate are mixed, and additive is made；
Step (2) by sodium methyl silicate, lauryl sodium sulfate, ethylene-acrylic acid copolymer part, polycarboxylate water-reducer,
Polypropylene fibre, the mixture of ca aluminosilicate and calcium sulphoaluminate, red mud, lithium slag such as are added at the pure water of quality by weight ratio
In heated, be stirred, it is fine that calcium oxide, magnesia, flyash, carboxymethyl be added by weight ratio again after mixing
Dimension element, is stirred, and cooling filtering, drying obtains swelling agent；
Step (3) is by white cement, polyvinyl acetate emulsion, glue, powdered whiting, air-entrainment, swelling agent and additive
It is mixed by weight ratio.
In rapid (1), first by after high density poly propylene and aggregate mixed melting by weight ratio, corresponding matter is added
Hexamethyl cyclotrisiloxane, trifluoroethyl methacrylate, hexadecyltrimethylammonium chloride and the naphthalene sulfonate for measuring part carry out
It is mixed, additive is made.
Step comprises the following steps in (2): step (21) is by sodium methyl silicate, lauryl sodium sulfate, ethylene-propylene
Acid copolymer part, polycarboxylate water-reducer, polypropylene fibre mixing, stir evenly, obtain inorganic agent；
The mixture of ca aluminosilicate and calcium sulphoaluminate, red mud, lithium slag the quality such as are added by step (22) by weight ratio
Pure water in heated, be stirred, after mixing again by weight ratio be added calcium oxide, magnesia, flyash,
Carboxymethyl cellulose is stirred, and cooling filtering, drying obtains mixture；
Inorganic agent is stirred by step (23) with mixture to be mixed, and swelling agent is obtained.
In the step (22), by weight ratio by the mixture of ca aluminosilicate and calcium sulphoaluminate, red mud, lithium slag first
It is added in pulverizer and crushes, after crossing 120~220 meshes, then carry out being heated to 60 degree, be stirred.
In the step (3), white cement, polyvinyl acetate emulsion, powdered whiting will be mixed, be added by weight ratio
Glue, air-entrainment, swelling agent and additive is successively added to 60 degree and uniform stirring in heat by weight ratio, after uniform stirring
It is cooled down.
The test of 4 anti-permeability performance of embodiment
According to the regulation of GB50164 " Standard for quality control of concrete ", test group 1- group 2, the impermeability of comparative example 1-4
Energy.
Test method is that surface coating material is respectively coated to (coating layer thickness is not less than in reinforced concrete sewer pipe surface layer
10mm), the anti-permeability performance of concrete drain tile is tested after conserving 28 days.
Wherein, group 1 and group 2 are experimental group, and the surface coating material in Examples 1 and 2 is respectively coated；It is not added in comparative example 1
The additive, other compositions are same as Example 1；The swelling agent, other compositions and embodiment 1 are not added in comparative example 2
It is identical；The additive and swelling agent are not added in comparative example 3, other compositions are same as Example 1；It is not coated by comparative example 4
Surface coating material.
Test result is as follows table:
| Group | Impermeability pressure/MPa | Permeated height ratio |
| Group 1 | 1.49 | 14.3% |
| Group 2 | 1.53 | 14.1% |
| Comparative example 1 | 1.08 | 19.9% |
| Comparative example 2 | 0.86 | 22.3% |
| Comparative example 3 | 0.62 | 29.1% |
| Comparative example 4 | 0.40 | 39.3% |
Therefore, the reinforced concrete sewer pipe coated with coating obtained in the present embodiment 1,2 has what is significantly improved to resist
Seep performance.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (9)
1. a kind of concrete drain tile surface coating material, which is characterized in that the coating by following parts by weight raw material preparation and
At: 5-10 parts of white cement, 40-50 parts of polyvinyl acetate emulsion, 5-10 parts of glue, 6-12 parts of powdered whiting, air-entrainment 2-7
Part, 5-10 parts of swelling agent, 5-10 parts of additive；
The additive is prepared by the raw material of following parts by weight: 3-4 parts of hexamethyl cyclotrisiloxane, methacrylic acid trifluoro
2-3 parts of ethyl ester, 1-2 parts of hexadecyltrimethylammonium chloride, 80-90 parts of high density poly propylene, 2-5 parts of naphthalene sulfonate, aggregate 35-
45 parts；
The swelling agent is prepared by the raw material of following parts by weight: 25-30 parts of the mixture of ca aluminosilicate and calcium sulphoaluminate,
10-20 parts of red mud, 10-15 parts of lithium slag, 4-8 parts of calcium oxide, 3-6 parts of magnesia, 5-8 parts of sodium methyl silicate, dodecyl sulphate
2-4 parts of sodium, 0.2-0.5 parts of ethylene-acrylic acid copolymer, 0.7-1 parts of polycarboxylate water-reducer, 1-3 parts of polypropylene fibre, fine coal
It is 8-10 parts grey, 5-10 parts of carboxymethyl cellulose.
2. a kind of concrete drain tile surface coating material according to claim 1, which is characterized in that the coating is by as follows
The raw material of parts by weight is prepared: 9 parts of white cement, 50 parts of polyvinyl acetate emulsion, 6 parts of glue, 7 parts of powdered whiting, aerating
4 parts of agent, 7 parts of swelling agent, 8 parts of additive.
3. a kind of concrete drain tile surface coating material according to claim 2, which is characterized in that the additive is by as follows
The raw material of parts by weight is prepared: 3 parts of hexamethyl cyclotrisiloxane, 2 parts of trifluoroethyl methacrylate, cetyl trimethyl
2 parts of ammonium chloride, 85 parts of high density poly propylene, 3 parts of naphthalene sulfonate, 35 parts of aggregate.
4. a kind of concrete drain tile surface coating material according to claim 3, which is characterized in that the swelling agent is by such as
The raw material of lower parts by weight is prepared: 11 parts of 12 parts of 26 parts of mixture, red mud, the lithium slag of ca aluminosilicate and calcium sulphoaluminate, oxidation
6 parts of calcium, 5 parts of magnesia, 6 parts of sodium methyl silicate, 3 parts of lauryl sodium sulfate, 0.3 part of ethylene-acrylic acid copolymer, poly- carboxylic
1 part of sour water-reducing agent, 2 parts of polypropylene fibre, 9 parts of flyash, 9 parts of carboxymethyl cellulose.
5. the preparation method of concrete drain tile surface coating material according to any one of claims 1-4, which is characterized in that
Step (1) is by weight ratio by high density poly propylene, aggregate, hexamethyl cyclotrisiloxane, trifluoroethyl methacrylate, ten
Six alkyl trimethyl ammonium chlorides and naphthalene sulfonate are mixed, and additive is made；
Step (2) is by sodium methyl silicate, lauryl sodium sulfate, ethylene-acrylic acid copolymer part, polycarboxylate water-reducer, poly- third
Alkene fiber, the mixture of ca aluminosilicate and calcium sulphoaluminate, red mud, lithium slag be added by weight ratio etc. in the pure water of quality into
Row heating, is stirred, and calcium oxide, magnesia, flyash, carboxymethyl cellulose is added by weight ratio again after mixing
Element is stirred, and cooling filtering, drying obtains swelling agent；
Step (3) is by white cement, polyvinyl acetate emulsion, glue, powdered whiting, air-entrainment, swelling agent and additive by weight
Amount proportion is mixed.
6. the preparation method of concrete drain tile surface coating material according to claim 5, which is characterized in that described is rapid
(1) in, first by after high density poly propylene and aggregate mixed melting by weight ratio, the pregnancy basic ring three of corrresponding quality part is added
Siloxanes, trifluoroethyl methacrylate, hexadecyltrimethylammonium chloride and naphthalene sulfonate are mixed, and are made additional
Agent.
7. the preparation method of concrete drain tile surface coating material according to claim 5, which is characterized in that in step (2)
Comprise the following steps: step (21) is by sodium methyl silicate, lauryl sodium sulfate, ethylene-acrylic acid copolymer part, polycarboxylic acids
Water-reducing agent, polypropylene fibre mixing, stir evenly, obtain inorganic agent；
The mixture of ca aluminosilicate and calcium sulphoaluminate, red mud, lithium slag the pure of quality such as are added by step (22) by weight ratio
It is heated, is stirred in water purification, calcium oxide, magnesia, flyash, carboxylic first is added by weight ratio again after mixing
Base cellulose, is stirred, and cooling filtering, drying obtains mixture；
Inorganic agent is stirred by step (23) with mixture to be mixed, and swelling agent is obtained.
8. the preparation method of concrete drain tile surface coating material according to claim 7, which is characterized in that the step
(22) in, powder in pulverizer is first added in the mixture of ca aluminosilicate and calcium sulphoaluminate, red mud, lithium slag by weight ratio
It is broken, it after crossing 120~220 meshes, then carries out being heated to 60 degree, be stirred.
9. the preparation method of concrete drain tile surface coating material according to claim 5, which is characterized in that the step
(3) in, white cement, polyvinyl acetate emulsion, powdered whiting will be mixed by weight ratio, and will be heated to 60 degree and uniformly stirs
It mixes, glue, air-entrainment, swelling agent and additive is successively added by weight ratio, is cooled down after uniform stirring.
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Cited By (1)
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Application publication date: 20190423 |