CN103466994B - Self-leveling bedding mortar and abrasion-resistant ground mortar additive and preparation method - Google Patents
Self-leveling bedding mortar and abrasion-resistant ground mortar additive and preparation method Download PDFInfo
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- CN103466994B CN103466994B CN201310434903.6A CN201310434903A CN103466994B CN 103466994 B CN103466994 B CN 103466994B CN 201310434903 A CN201310434903 A CN 201310434903A CN 103466994 B CN103466994 B CN 103466994B
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Abstract
The present invention relates to concrete additive technical field, be specifically related to a kind of Self-leveling bedding mortar and abrasion-resistant ground mortar additive and preparation method thereof, this additive comprises following component: emulsion: 60-80; Sanitas: 0-1; Toughener: 1-20; Defoamer: 0-1; Water reducer: 5-10; Hydrophobizing agent: 1-2; Anti-settling agent: 0-2; Fiber: 1-2; Water: 10-20.Mixing additive of the present invention when constructing, mortar can be made to have good mobility, during hydrated cementitious, obtain suitable moisture all the time, thus making cement each stage all can obtain abundant aquation, after mortar is condensed, there is higher intensity.Preparation method of the present invention is comparatively simple, and cost is lower, is adapted at the big area terrace projects such as large supermarket, market, parking lot, stadiums, factory floor, warehouse and promotes the use of.
Description
Technical field
The present invention relates to concrete additive technical field, be specifically related to a kind of Self-leveling bedding mortar and abrasion-resistant ground mortar additive and preparation method thereof.
Background technology
Country 12 planning lists the urbanization of China in developing goal, and explicitly calls for and reach 60% at the year two thousand twenty whole nation urbanization rate, this means that China will enter Development of Urbanization period at a high speed.Along with the mushroom development of every capital construction, various wear-resistant and crack-resistant ground, auto-flowing floor is applied more and more.Gravity flowing levelling mortar system is the mortar that in mortar, technical requirements is the highest and the most complicated, the bedding mortar of Self-leveling is the important guarantee of surfacing self-leveling floor effect quality, therefore Self-leveling and the properties stability of guaranteeing mortar are key problems, otherwise surface layer the later stage easily there is shrinkage cracking, infiltration, sand fallout, peeling distortion, strength grade is low, the series of problems such as ash are played on ground.
Summary of the invention
Technical problem to be solved by this invention is: for mortar of the prior art in problems such as later stage ubiquitous easy cracking, infiltration, peelings, provides a kind of for Self-leveling bedding mortar and abrasion-resistant ground mortar additive and preparation method thereof.
The technical solution adopted for the present invention to solve the technical problems is: a kind of Self-leveling bedding mortar and abrasion-resistant ground mortar additive, and by weight, this additive comprises following component:
Emulsion: 60-80; Sanitas: 0-1; Toughener: 1-20; Defoamer: 0-1; Water reducer: 5-10; Hydrophobizing agent: 1-2; Anti-settling agent: 0-2; Fiber: 1-2; Water: 10-20.
The proportion optimizing of above-mentioned formula is as follows: emulsion: 80; Sanitas: 0.3; Toughener: 5; Defoamer: 0.5; Water reducer: 5; Hydrophobizing agent: 1; Anti-settling agent: 0.2; Fiber: 1.5; Water: 12.
Emulsion is the one in pure-acrylic emulsion, styrene-butadiene emulsion or benzene emulsion; Pure-acrylic emulsion technical indicator is: solid content (wt%): 50 ± 1, minimum film-forming temperature (Tg): 12-22 DEG C, viscosity: 200-800 mpas, pH value (potential of hydrogen): 7.5-9.0; Styrene-butadiene emulsion technical indicator is: solid content (wt%): 50.0 ± 2.0, pH value (potential of hydrogen): 6.0-8.0, viscosity: 80-400 mpas, minimum film-forming temperature (Tg): 0-8 DEG C; Benzene emulsion technical indicator is: solid content (wt%): 48 ± 2, minimum film-forming temperature (Tg): 14-23 DEG C, viscosity: 600-1500 mpas, pH value (potential of hydrogen): 7.5-9.0.
Sanitas is emulsion special anti-corrosion mould inhibitor, is developed by Taicang Roodee Biotechnology Research Institute, and its main component is poly-MIT compound.
Toughener is the special toughener of cement, and developed by Yongkang City power water-borne coatings factory of section of climbing to a higher point, main component is: one or both in water glass, potassium silicate, lithium silicate.
Defoamer is the P803 pulvis that Germany produces, and main component is: the mixture of liquid hydrocarbon, polyoxyethylene glycol and amorphism silicon, buys in Shanghai Shang Nan trade Co., Ltd.
Water reducer is a kind of in polycarboxylate water-reducer, naphthalene water reducer, aliphatic water reducing agent, buys in Xuzhou Xin Gu building materials company limited.
Hydrophobizing agent be methyl silicon sodium alcoholate or watt gram powder D hydrophobizing agent.
Anti-settling agent is the one in cellulose ethers HPMC, HEMC or CMC, and viscosity is 80000-110000mpas, gelling temp (DEG C): 62-68.
Fiber is polypropylene-base high dispersive staple fibre, and length is 5mm-10mm.
A preparation method for Self-leveling bedding mortar and abrasion-resistant ground mortar additive, is characterized in that: this preparation method has following steps:
(1) following material is prepared, emulsion: 60-80 by mass weight ratio; Sanitas: 0-1; Toughener: 1-20; Defoamer: 0-1; Water reducer: 5-10; Hydrophobizing agent: 1-2; Anti-settling agent: 0-2; Fiber: 1-2; Water: 10-20;
(2) add emulsion in a kettle. successively, anti-settling agent, hydrophobizing agent, water reducer, toughener, defoamer are blended, raised temperature to 50 DEG C-80 DEG C, is cooled to room temperature by mixed solution after at the uniform velocity stirring 30-60min;
(3) in above-mentioned cooled mixed solution, add sanitas and fiber, under normal temperature, at the uniform velocity stir the additive product that 10-20min obtains solid-liquid suspension shape.
Additive of the present invention is when reality is implemented, and by weight, addition and other amount of mixture ratios of this additive are (0.004-0.005): 1; Other mixtures are the mixture of cement, stone flour, sand and water, and wherein, the weight ratio of cement and sand is 1:3-1:5, the weight ratio of water and cement is 0.5:1, cement is 42.5 ordinary Portland cements, and sand is the common medium sand of below 5mm, and stone flour is 200 object water-ground limestones.
Beneficial effect: moisture too much in sand-cement slurry adds inoperative to the hydration reaction of cement, later stage cement-based mortar ground floor water ratio can be caused on the contrary higher, make troubles to follow-up construction.Mixing additive of the present invention when constructing, mortar can be made to have good mobility, and obtain suitable moisture all the time when can make hydrated cementitious, thus making cement each stage all can obtain abundant aquation, after mortar is condensed, there is higher intensity.In additive, defoamer can make mortar more closely knit, the impermeability of effective reinforced mortar; Planeness and the wear resistance of mortar surface can be increased after polymer film forming wherein, while hydrated cementitious, polymkeric substance is film forming in mortar, can the Young's modulus of reinforced mortar, mortar is condensed rear surface flat smooth, attractive in appearance and can not crack, does not occur the problems such as infiltration or peeling; Preparation method of the present invention is comparatively simple, and cost is lower, is adapted at the big area terrace projects such as large supermarket, market, parking lot, stadiums, factory floor, warehouse and promotes the use of.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described.
Embodiment one
A preparation method for Self-leveling bedding mortar and abrasion-resistant ground mortar additive, is characterized in that: this preparation method has following steps:
(1) following material is prepared, emulsion: 80 by mass weight ratio; Sanitas: 0.3; Toughener: 5; Defoamer: 0.5; Water reducer: 5; Hydrophobizing agent: 1; Anti-settling agent: 0.2; Fiber: 1.5; Water: 6.5;
(2) add emulsion in a kettle. successively, anti-settling agent, hydrophobizing agent, water reducer, toughener, defoamer are blended, raised temperature to 80 DEG C, is cooled to room temperature by mixed solution after at the uniform velocity stirring 30min;
(3) in above-mentioned cooled mixed solution, add sanitas and fiber, under normal temperature, at the uniform velocity stir the additive product that 10-20min obtains solid-liquid suspension shape.
Additive of the present invention is when reality is implemented, and by weight, each component proportion is as follows: 42.5 cement: 360, sand: 1360, stone flour: 240, additive: 9, and the weight ratio of water and cement is 0.5:1.
Embodiment two
A preparation method for Self-leveling bedding mortar and abrasion-resistant ground mortar additive, is characterized in that: this preparation method has following steps:
(1) following material is prepared, emulsion: 80 by mass weight ratio; Sanitas: 0.3; Toughener: 4; Defoamer: 0.5; Water reducer: 5; Hydrophobizing agent: 1.2; Anti-settling agent: 0.3; Fiber: 1.5; Water: 7.2; Other step is with embodiment one, and the formula of this additive when reality is implemented is with embodiment one.
Embodiment three
A preparation method for Self-leveling bedding mortar and abrasion-resistant ground mortar additive, is characterized in that: this preparation method has following steps:
(1) following material is prepared, emulsion: 80 by mass weight ratio; Sanitas: 0.3; Toughener: 3; Defoamer: 0.5; Water reducer: 5; Hydrophobizing agent: 1.1; Anti-settling agent: 0.1; Fiber: 1.5; Water: 8.5; Other step is with embodiment one, and the formula of this additive when reality is implemented is with embodiment one.
The each phase performance test data of additive application after mortar condensation of embodiment one to three gained is as follows:
Show from the correlated performance data after mortar condensation, be significantly improved after blast blending to the anti-folding of mortar and compressive property, the anti-folding of 28d improves from 16%-61%, and resistance to compression improves from 10%-65%.Anti-mix grade by mortar impermeability test all reach be greater than 1.6,28d water ratio also more blank sample reduce to some extent, and the raising of intensity is consistent.
The quality of construction technology on mortar of abrasion-resistant ground mortar and cement self-leveling bedding mortar has very important impact, adopt product of the present invention to note when engineering construction following in:
1, foundation ground and lower floor can not ghosts;
2, floor cleaning is clean, can not have the foreign material such as sand grains;
3, for ensureing the firmness on ground, surface treatment is carried out in available interface agent;
4, foundation ground compressive strength is at least 20MPa;
5, must mixing and stirring during construction.
Claims (6)
1. Self-leveling bedding mortar and an abrasion-resistant ground mortar additive, it is characterized in that: by weight, this additive comprises following component:
Emulsion: 60-80; Sanitas: 0-1; Toughener: 1-20; Defoamer: 0-1;
Water reducer: 5-10; Hydrophobizing agent: 1-2; Anti-settling agent: 0-2; Fiber: 1-2; Water: 10-20;
Described emulsion is the one in pure-acrylic emulsion, styrene-butadiene emulsion or benzene emulsion;
Pure-acrylic emulsion technical indicator is: solid content (wt%): 50 ± 1, minimum film-forming temperature: 12-22 DEG C, viscosity: 200-800mpas, pH value: 7.5-9.0; Styrene-butadiene emulsion technical indicator is: solid content (wt%): 50.0 ± 2.0, pH value: 6.0-8.0, viscosity: 80-400mpas, minimum film-forming temperature: 0-8 DEG C; Benzene emulsion technical indicator is: solid content (wt%): 48 ± 2, minimum film-forming temperature: 14-23 DEG C, viscosity: 600-1500mpas, pH value: 7.5-9.0.
2. a kind of Self-leveling bedding mortar according to claim 1 and abrasion-resistant ground mortar additive, is characterized in that: described water reducer is the one in polycarboxylate water-reducer, naphthalene water reducer, aliphatic water reducing agent.
3. a kind of Self-leveling bedding mortar according to claim 1 and abrasion-resistant ground mortar additive, is characterized in that: described hydrophobizing agent be methyl silicon sodium alcoholate or watt gram powder D hydrophobizing agent.
4. a kind of Self-leveling bedding mortar according to claim 1 and abrasion-resistant ground mortar additive, it is characterized in that: described anti-settling agent is the one in cellulose ethers HPMC, HEMC or CMC, viscosity is 80000-110000mpas, and gelling temp is 62-68 DEG C.
5. a kind of Self-leveling bedding mortar according to claim 1 and abrasion-resistant ground mortar additive, is characterized in that: the optimization of C/C composites component of described additive is as follows:
Emulsion: 80; Sanitas: 0.3; Toughener: 5; Defoamer: 0.5;
Water reducer: 5; Hydrophobizing agent: 1; Anti-settling agent: 0.2; Fiber: 1.5; Water: 12.
6. a kind of Self-leveling bedding mortar according to claim 1 and abrasion-resistant ground mortar additive, is characterized in that: by weight, and addition and other amount of mixture ratios of this additive are (0.004-0.005): 1; Other mixtures described are the mixture of cement, stone flour, sand and water, and wherein, the weight ratio of cement and sand is 1:3-1:5, and the weight ratio of water and cement is 0.5:1.
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104261773B (en) * | 2014-09-19 | 2017-01-25 | 上海积佳建材有限公司 | Water-resistant cement-based self-leveling material |
| CN104402334A (en) * | 2014-11-11 | 2015-03-11 | 李开成 | Flame-retardant cement-based cushion self-leveling |
| CN109437659B (en) * | 2018-12-08 | 2021-06-04 | 广州建研科技有限公司 | Inorganic nano stock solution |
| CN109437753B (en) * | 2018-12-08 | 2021-06-04 | 广州建研科技有限公司 | Inorganic stone and production process thereof |
| CN110156372A (en) * | 2019-05-10 | 2019-08-23 | 中交浚浦建筑科技(上海)有限公司 | A kind of auto-flowing floor mortar additive and preparation method thereof |
| CN111099853A (en) * | 2019-07-15 | 2020-05-05 | 海南瑞宸新型建材有限公司 | Novel mortar additive and preparation method thereof |
| CN110436863A (en) * | 2019-08-15 | 2019-11-12 | 中都工程设计有限公司 | A kind of laying rural highway concrete special and preparation method thereof |
| CN110981397A (en) * | 2019-11-27 | 2020-04-10 | 廊坊市北辰创业树脂材料股份有限公司 | Cement-based self-leveling mortar and preparation method thereof |
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Effective date of registration: 20190529 Address after: 213000 No. 88 Weitangtan Road, He Jia Village, Benniu Town, Xinbei District, Changzhou City, Jiangsu Province Patentee after: Changzhou Li Cheng environmental protection science and Technology Development Co., Ltd. Address before: 213164 No. 3 Gehuzhong Road, Wujin District, Changzhou City, Jiangsu Province Patentee before: Changzhou Engineering Vocational Technical College |
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