CN110171945A - A kind of high cracking resistance Self-leveling facing mortar of automatically cleaning and preparation method - Google Patents

A kind of high cracking resistance Self-leveling facing mortar of automatically cleaning and preparation method Download PDF

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Publication number
CN110171945A
CN110171945A CN201910350237.5A CN201910350237A CN110171945A CN 110171945 A CN110171945 A CN 110171945A CN 201910350237 A CN201910350237 A CN 201910350237A CN 110171945 A CN110171945 A CN 110171945A
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CN
China
Prior art keywords
automatically cleaning
cracking resistance
parts
high cracking
resistance self
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Pending
Application number
CN201910350237.5A
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Chinese (zh)
Inventor
刘开伟
叶哲
孙道胜
王爱国
王月明
陈东
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Anhui Jianzhu University
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Anhui Jianzhu University
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Publication date
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Priority to CN201910350237.5A priority Critical patent/CN110171945A/en
Publication of CN110171945A publication Critical patent/CN110171945A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions 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
    • C04B28/04Portland cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00008Obtaining or using nanotechnology related materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/34Non-shrinking or non-cracking materials
    • C04B2111/343Crack resistant materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

Abstract

The invention discloses a kind of high cracking resistance Self-leveling facing mortars of automatically cleaning, it is made of by weight percentage following raw materials according manufacture: white cement 25%-35%, water-reducing agent 0.5%-1.0%, swelling agent 1%-2%, nano-titanium dioxide 0.2%-0.5%, alkali activating fly ash 2%-6%, water 10%-13%, the sum of each raw material weight percentage is equal to 100%, also disclose a kind of preparation method of high cracking resistance Self-leveling facing mortar of automatically cleaning, include the following steps, step 2: after titanium dioxide and alkali activating fly ash mix, with white portland cement, metakaolin, redispersable latex powder and swelling agent are proportionally added into blender, white sand is added to stir 1 minute, fiber is eventually adding to stir 3-5 minutes;The present invention has more preferable crack resistance, mobility and self-cleaning performance, can be widely applied to assembled architecture large scale outer wall surface, economic results in society are significant.

Description

A kind of high cracking resistance Self-leveling facing mortar of automatically cleaning and preparation method
Technical field
The present invention relates to building material technical field, the high cracking resistance Self-leveling facing mortar of specially a kind of automatically cleaning and system Preparation Method.
Background technique
With the fast development of economic level, as the exterior wall finish material of emerging construction wall, fibre reinforced cement Sill (GRC) should be cracking resistance with higher and obtain extensive concern.However since simple glass fiber is in cement matrix Degree of scatter in material is not uniform enough, it usually needs just can get more apparent crack resistance, while low dispersibility compared with large dosage Cause superficies there are exposed fibers, also the later period is needed to reprocess;Additionally, due to the development of modern assembled architecture, larger fiber Volume can cause to pour being greatly reduced for Mortar'S Flowability, and exterior wall is caused to bring biggish limitation during pouring in advance.
Have more mature application to the research of the automatically cleaning, environmental protection characteristic of cement-based material, but is presently mainly Only by mixing anatase titanium dioxide, such as Fan Lifeng team, the country develops a kind of automatically cleaning high tenacity cement base composite wood Material and preparation method thereof [CN104129951A [P]], but nano-titanium dioxide in cement-based material it is uniformly dispersed not Height, nano-titanium dioxide are inefficient in automatically cleaning.
For above-mentioned cement mortar assembled architecture outer wall pour with the deficiency in application process, the present invention is to water Cement mortar is modified, to obtain the exterior wall mortar for capableing of Self-leveling of more high cracking resistance and automatically cleaning efficiency, the present invention Develop a kind of high cracking resistance Self-leveling facing mortar of automatically cleaning and preparation method.
Summary of the invention
The main object of the present invention provides a kind of high cracking resistance Self-leveling facing mortar of automatically cleaning, and material has crack resistance Can it is excellent, can Self-leveling, have the characteristics that self-cleaning ability, can be with the problems in effective solution background technique.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of high cracking resistance Self-leveling facing mortar of automatically cleaning is made of following raw materials according manufacture: white by weight percentage Cement 25%-35%, alkali-resistant glass fibre 0.2%-0.6%, 30-100 mesh white sand 30%-60%, admixture 5%-10%, Redispersable latex powder 1%-2%, water-reducing agent 0.5%-1.0%, swelling agent 1%-2%, nano-titanium dioxide 0.2%- 0.5%, alkali activating fly ash 2%-6%, water 10%-13%, the sum of each raw material weight percentage are equal to 100%.
Further, the alkali-resistant glass fibre is the alkali-resistant glass fibre with hydrophilic-structure, and fiber filament length is 2-4mm can possess excellent dispersing characteristic under normal stirring.
Further, the white cement is 52.5 white portland cement of PW;The white sand is 30-100 mesh fine sand, no Mud containing fine sand.
Further, the alkali activating fly ash is the powder obtained with porous structure after activating under basic conditions Coal ash.
Further, the nano-titanium dioxide is Wastewater by Nanometer Anatase structure titanium dioxide.
Further, the admixture is one or more of metakaolin, silicon ash and slag.
Further, the swelling agent is the one or more of calcareous swelling agent or calcium and magnesium swelling agent.
Further, the mixing water is the solution of water and water-reducing agent.
In order to solve technical problem, the present invention also provides a kind of preparations of the high cracking resistance Self-leveling facing mortar of automatically cleaning Method:
Step 1: preparing 25 parts -35 parts of white cement, 0.2 part -0.6 part of alkali-resistant glass fibre, 30 parts of 30-100 mesh white sand - 60 parts, 5 parts -10 parts of admixture, 1 part -2 parts of redispersable latex powder, 0.5 part -1.0 parts of water-reducing agent, 1 part -2 parts of swelling agent, receive Rice 0.2 part -0.5 part of titanium dioxide, 2 parts -6 parts of alkali activating fly ash, 10 parts -13 parts of water, the sum of each raw material weight percentage etc. In 100 parts.
Step 2: after titanium dioxide and alkali activating fly ash mix, with white portland cement, metakaolin, can be again Dispersed latex powder and swelling agent are proportionally added into blender, and stirring is allowed within 2-3 minutes after mixing plus mixing water stirs 2- slowly It 3 minutes, adds white sand and stirs 1 minute, be eventually adding fiber and stir 3-5 minutes, the high cracking resistance Self-leveling of automatically cleaning can be obtained Facing mortar
The utility model has the advantages that
1. material flowability is good: the high cracking resistance Self-leveling facing mortar of automatically cleaning of the invention, machine fluidity reaches out Almost without fluidity loss after 175mm, 20min.
2. cracking resistance is good: the high cracking resistance Self-leveling facing mortar of automatically cleaning of the invention, dry search in 90 days are less than 0.1%.
3. mechanical property is good: automatically cleaning high cracking resistance incrustation cement of the invention, the anti-folding of the material of 28d age Intensity reaches as high as 10Mpa, and compression strength is up to 55MPa.
4. with self-cleaning ability: the present invention is using the Powder ash adsorption self-cleaning nona titanium dioxide after excitation, sufficiently It is evenly dispersed in the material, the pollutant of material surface can be made to carry out oxidative degradation under sunlight irradiation, and rush with rainwater Brush reaches environmental protection, self-cleaning function, keeps decorative material surface cleaning.
Present invention is mainly used for the fast pourings of production assembled architecture large scale exterior wall.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below Specific embodiment is closed, the present invention is further explained.
Embodiment 1
A kind of high cracking resistance Self-leveling facing mortar of automatically cleaning, composition and ratio (weight percent) are as follows: 30% white silicon Acid salt cement, 0.4% glass fibre, 43% white sand, 6% metakaolin, 1% water-reducing agent, 1.3% swelling agent, 2% dispersion cream Rubber powder, 6% alkali activating fly ash, 0.3% nano-titanium dioxide, 10% water.By the high cracking resistance Self-leveling facing sand of gained automatically cleaning Slurry is tested for the property, and the results are shown in Table 1.
Embodiment 2
A kind of high cracking resistance Self-leveling facing mortar of automatically cleaning, composition and ratio (weight percent) are as follows: 32% white silicon Acid salt cement, 0.5% glass fibre, 40% white sand, 8% metakaolin, 0.8% water-reducing agent, 1.4% swelling agent, 2.5% point Dissipate latex powder, 5% alkali activating fly ash, 0.3% nano-titanium dioxide, 9.5% water.By the high cracking resistance Self-leveling of gained automatically cleaning Facing mortar is tested for the property, and the results are shown in Table 2.
By above embodiments 1, embodiment 2 it can be found that a kind of high cracking resistance Self-leveling facing of automatically cleaning proposed by the present invention Mortar, can configure corresponding product according to engine request, and properties are all satisfied or are above standard requirement, and high fluidity The fast pouring that may be directly applied to assembled architecture large scale exterior wall has the engineering of automatically cleaning requirement particularly with exterior wall, It can be widely popularized in the exterior wall engineering of each assembled architecture.
By above embodiments 1, embodiment 2 it can be found that a kind of high cracking resistance Self-leveling facing of automatically cleaning proposed by the present invention Mortar, can configure corresponding product according to engine request, and properties are all satisfied or are above standard requirement, and high fluidity The fast pouring that may be directly applied to assembled architecture large scale exterior wall has the engineering of automatically cleaning requirement particularly with exterior wall, It can be widely popularized in the exterior wall engineering of each assembled architecture.

Claims (9)

1. a kind of high cracking resistance Self-leveling facing mortar of automatically cleaning, it is characterized in that manufacturing group by following raw materials according by weight percentage At: white cement 25%-35%, alkali-resistant glass fibre 0.2%-0.6%, 30-100 mesh white sand 30%-60%, admixture 5%- 10%, redispersable latex powder 1%-2%, water-reducing agent 0.5%-1.0%, swelling agent 1%-2%, nano-titanium dioxide 0.2%- 0.5%, alkali activating fly ash 2%-6%, water 10%-13%, the sum of each raw material weight percentage are equal to 100%.
2. the high cracking resistance Self-leveling facing mortar of a kind of automatically cleaning according to claim 1, it is characterised in that: the alkaline-resisting glass Glass fiber is the alkali-resistant glass fibre with hydrophilic-structure, and fiber filament length is 2-4mm, can be possessed under normal stirring excellent Different dispersing characteristic.
3. the high cracking resistance Self-leveling facing mortar of a kind of automatically cleaning according to claim 1, it is characterised in that: the white cement For PW52.5 white portland cement;The white sand is 30-100 mesh fine sand, is free of fine sand mud.
4. the high cracking resistance Self-leveling facing mortar of a kind of automatically cleaning according to claim 1, it is characterised in that: the alkali activation Flyash is the flyash obtained with porous structure after activating under basic conditions.
5. the high cracking resistance Self-leveling facing mortar of a kind of automatically cleaning according to claim 1, it is characterised in that: the nanometer two Titanium oxide is Wastewater by Nanometer Anatase structure titanium dioxide.
6. the high cracking resistance Self-leveling facing mortar of a kind of automatically cleaning according to claim 1, it is characterised in that: the admixture For one or more of metakaolin, silicon ash and slag.
7. the high cracking resistance Self-leveling facing mortar of a kind of automatically cleaning according to claim 1, it is characterised in that: the swelling agent For the one or more of calcareous swelling agent or calcium and magnesium swelling agent.
8. the high cracking resistance Self-leveling facing mortar of a kind of automatically cleaning according to claim 7, it is characterised in that: the mixing water For the solution of water and water-reducing agent.
9. a kind of preparation method of the high cracking resistance Self-leveling facing mortar of automatically cleaning according to claim 1, it is characterised in that:
Step 1: preparation process 1: preparing 25 parts -35 parts of white cement, 0.2 part -0.6 part of alkali-resistant glass fibre, 30-100 mesh white sand 30 parts -60 parts, 5 parts -10 parts of admixture, 1 part -2 parts of redispersable latex powder, 0.5 part -1.0 parts of water-reducing agent, 1 part -2 of swelling agent Part, 0.2 part -0.5 part of nano-titanium dioxide, 2 parts -6 parts of alkali activating fly ash, 10 parts -13 parts of water, each raw material weight percentage it Be equal to 100 parts.
Step 2: after titanium dioxide and alkali activating fly ash mix, with white portland cement, metakaolin, redispersible cream Rubber powder and swelling agent are proportionally added into blender, and stirring is allowed within 2-3 minutes after mixing plus mixing water stirs 2-3 minutes slowly, It adds white sand to stir 1 minute, is eventually adding fiber and stirs 3-5 minutes, the high cracking resistance Self-leveling facing sand of automatically cleaning can be obtained Slurry.
CN201910350237.5A 2019-04-28 2019-04-28 A kind of high cracking resistance Self-leveling facing mortar of automatically cleaning and preparation method Pending CN110171945A (en)

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CN201910350237.5A CN110171945A (en) 2019-04-28 2019-04-28 A kind of high cracking resistance Self-leveling facing mortar of automatically cleaning and preparation method

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Cited By (6)

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Publication number Priority date Publication date Assignee Title
CN110922127A (en) * 2019-11-20 2020-03-27 刘磊 Inorganic texture material and application thereof in decoration
CN111892357A (en) * 2020-08-14 2020-11-06 中国路桥工程有限责任公司 White self-cleaning concrete and preparation method thereof
CN111960773A (en) * 2020-08-26 2020-11-20 张家口恒泰宜居房屋制造有限公司 Novel high-strength cement-based repairing material for concrete prefabricated part
WO2021092986A1 (en) * 2019-11-15 2021-05-20 广东特耐石新材料科技有限公司 Self-cleaning artificial stone plate for outdoor use and preparation method therefor
CN112939530A (en) * 2020-12-04 2021-06-11 绍兴精工绿筑集成建筑系统工业有限公司 White high-performance cement-based material special for external wall tile reverse-hitting process
CN113121169A (en) * 2021-03-15 2021-07-16 安徽建筑大学 Environment-friendly photocatalytic white ultrahigh-performance concrete and preparation method thereof

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021092986A1 (en) * 2019-11-15 2021-05-20 广东特耐石新材料科技有限公司 Self-cleaning artificial stone plate for outdoor use and preparation method therefor
CN110922127A (en) * 2019-11-20 2020-03-27 刘磊 Inorganic texture material and application thereof in decoration
CN111892357A (en) * 2020-08-14 2020-11-06 中国路桥工程有限责任公司 White self-cleaning concrete and preparation method thereof
CN111960773A (en) * 2020-08-26 2020-11-20 张家口恒泰宜居房屋制造有限公司 Novel high-strength cement-based repairing material for concrete prefabricated part
CN112939530A (en) * 2020-12-04 2021-06-11 绍兴精工绿筑集成建筑系统工业有限公司 White high-performance cement-based material special for external wall tile reverse-hitting process
CN113121169A (en) * 2021-03-15 2021-07-16 安徽建筑大学 Environment-friendly photocatalytic white ultrahigh-performance concrete and preparation method thereof

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