CN105272104A - Self-leveling floor mortar and preparation method thereof - Google Patents
Self-leveling floor mortar and preparation method thereof Download PDFInfo
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- CN105272104A CN105272104A CN201510333054.4A CN201510333054A CN105272104A CN 105272104 A CN105272104 A CN 105272104A CN 201510333054 A CN201510333054 A CN 201510333054A CN 105272104 A CN105272104 A CN 105272104A
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Abstract
The invention relates to a self-leveling floor mortar and a preparation method thereof. The self-leveling floor mortar comprises the following components by weight percentage: 10-20% of cement, 6-12% of aluminous cement, 3-8% of alpha-semi-hydrated gypsum, 27-48.3% of quartz sand, 3-8% of fly ash, 0.01-0.05% of HPMC, 1-3% of latex powder, 0.015-0.05% of defoaming agents, 0.05-0.1% of coagulation accelerator, 0.01-0.35% of super-plasticizer, 0.05-0.1% of acyclic polyisocyanates, 0.05-0.1% of calcium aluminate expanding agent, 0.05-0.15% of polycarboxylic acids high efficiency water reducer powder, 0-0.3% of other additives. The self-leveling floor motar utilizes the waste coal ash; the motar has advantages of energy-saving, environment-friendly, endurable and wear resistance functions; the mortar has good fluidity and automatically and accurately levels to form a flat floor; a person can walk on the floor after 3-4 hours, and light transport can be allowable on the floor; the floor has a thickness of 2-5 mm, and hardly increase the elevation; the floor is reduced in materials and cost, has good adhesion and flatness, and hardly heaves; the mortar is harmless to human and has no radiation.
Description
Technical field
The present invention relates to material of construction, be specifically related to a kind of gravity flow self-leveling floor mortar and preparation method thereof.
Background technology
Mortar refer to architectural lay bricks use cohere material, added water into by a certain proportion of sand and consolidating material (cement, lime putty, clay etc.), be also mortar, also make mortar.Mortar is formed by gelling material (cement, lime, clay etc.) and fine aggregate (sand) blunge.Conventional has sand-cement slurry, mixed mortar (or being cement lime mortar), lime mortar and clay mortar.Gravity flowing levelling mortar is with inorganic coagulation material, aggregate, filler, and adds redispersable latex powder and a small amount of chemical additive, the powder-like product be uniformly mixed into by certain production technique.During use, adding water after stirring into pulpous state and there is fabulous mobility, pumping can be adopted to pour into a mould, slightly Automatic Levelling can form smooth surface through paving.Gravity flowing levelling mortar is the levelling ideal material of constructure ground essence, can be used as the place mat substrate of all kinds of floor decorative material, also can directly as terrace.Interpolation mineral dye, brushing water-base resin class terrace paint also can form the color floor with decorative effect.Gravity flowing levelling mortar is because of its outstanding construction and use properties, swift and violent in the penetration and promotion impetus of China at present.But, because gravity flowing levelling mortar is the complex system be made of a variety of materials, require very strict to raw-material kind, specification, consumption and collocation thereof.Commercially available prod ubiquity number of drawbacks, and performance is stable not, affects its promotion and application.
Summary of the invention
The object of the present invention is to provide a kind of gravity flow self-leveling floor mortar and preparation method thereof, there is excellent mobility, automatic accurate levelling ground, and utilize waste coal ash can also realize good cohesiveness, smooth, not hollowing.Concrete technical scheme is as follows:
A kind of gravity flow self-leveling floor mortar, contains following component according to weight percent:
Cement: 10-20%,
High-alumina cement: 6-12%,
Alpha-semi water plaster stone: 3-8%,
Quartz sand: 27-48.3%,
Flyash: 3-8%,
HPMC：0.01-0.05%，
Latex powder: 1-3%,
Defoamer: 0.015-0.05%,
Setting accelerator: 0.05-0.1%,
Retardant: 0.05-0.15%,
Superplasticizer: 0.01-0.35%,
Aliphatic polymeric isocyanate: 0.05-0.1%,
Calcium aluminate type expansion agent: 0.05-0.1%,
Powder high-efficiency water-reducing agent of poly-carboxylic acid: 0.05-0.15%,
Other additives: 0-0.3%,
Wherein,
Described quartz sand adopts following particle diameter and grating to require: 3-3.5mm contains 0-3% weight ratio, and 1.8-2mm contains 25 ~ 35% weight ratios, and 0.425 ~ 1.175mm contains 60-80% weight ratio, and 0.001-0.424mm contains 0 ~ 3% weight ratio;
Described latex powder is vinyl acetate and the ethylene copolymer rubber powder of 37%, the ethene of 29% and vinylchlorid and moon silicic acid vinyl acetate terpolymer rubber powder, the vinyl acetate of 21% and ethene and higher aliphatic vinyl acetate terpolymer rubber powder, the vinyl acetate of 11% and higher aliphatic vinyl acetate copolymerization rubber powder, and the mixture of the vinyl acetate homopolymerization rubber powder of 2%;
Described alpha-semi water plaster stone pH value is 2.54, and density is 2.93g/cm3;
Described HPMC adopts 30,000 viscosity hydroxypropylmethyl Mierocrystalline celluloses.
Further, also containing slag micropowder, it replaces cement 25% in cement, replaces high-alumina cement 27% in high-alumina cement.
Further, described cement is No. 425, general silicon.
Further, described defoamer is polyethers defoamer.
Further, other additives described are the normal alkane of 0.1%, the hydroxyethyl ether cellulose of 0.1% and the hardening accelerator of 0.1%.
Further, described superplasticizer is casein food grade, and described hardening accelerator is salts hardening accelerator.
The preparation method of above-mentioned gravity flow self-leveling floor mortar, further, comprises the steps:
(1) prepare each component according to preset blending ratio and weigh;
(2) by the cement of 1/3 to half, the high-alumina cement of 1/3 to half, the quartz sand of half drops in stirrer, stirs 1-1.5 minute;
(3) 2 minutes are left standstill;
(4) by alpha-semi water plaster stone, flyash, HPMC, defoamer, setting accelerator, superplasticizer, calcium aluminate type expansion agent drops in stirrer, stirs 1-1.5 minute;
(5) 2 minutes are left standstill;
(6) by remaining cement, high-alumina cement, quartz sand drops in stirrer, stirs 1-1.5 minute;
(7) 2 minutes are left standstill;
(8) by latex powder, retardant, aliphatic polymeric isocyanate, powder high-efficiency water-reducing agent of poly-carboxylic acid drops in stirrer, stirs 3 minutes;
(9) 2 minutes are left standstill;
(10) clear water is poured into and after in container, described material to be added and to stir 3-10 minute to evenly;
(11) 5-8 minute is left standstill;
(12) again 1-3 minute is stirred.
Further, material: clear water is the ratio of 1:0.175.
Compared with currently available technology, the present invention can utilize waste coal ash, thus environmental protection and energy saving; Wear-resisting, durable; There is excellent mobility, automatic accurate levelling ground; People's walking can be gone up after 3-4 hours, after 24 hours, light-duty traffic can be opened; Do not increase absolute altitude, the thin 2-5 millimeter of ground floor, save material, reduce costs; Good cohesiveness, smooth, not hollowing; Harmless, radiationless.Specifically: in starting material, adopt flyash and slag part to replace cement, be utilization of waste material on the one hand, the pollution to environment and minimizing cement consumption can be reduced, save energy, in addition on the one hand, admixture slag, utilize its glass microballon effect, improve mix mobility, reduce chemical admixture volume, reduce costs; SILICA FUME part can also be adopted to replace cement, improve the intensity after gravity flowing levelling mortar water-retentivity and sclerosis and density; Packed bags with on-spot is mixed and stirred, and reduces environmental pollution, easy and simple to handle, realizes Self-leveling, reduces cost of labor; Can also reach further by the non-research work of air entrained type swelling agent of admixture and compensate and the effect of slightly microdilatancy, make the material after sclerosis have the feature of high fine and close, high impervious, high cohesive force and stability, water-retentivity are good.
Embodiment
Describe the present invention below, it is a kind of preferred embodiment in numerous embodiments of the present invention.
Adopt following component and proportioning in one embodiment:
Cement (preferred No. 425, general silicon): 20%
High-alumina cement: 12%
Gypsum: 8%
Quartz sand: 48.3%
Flyash: 8%
30000 viscosity HPMC(Vltra tearss): 0.05%
Latex powder: 3%
Defoamer: 0.05%
Setting accelerator: 0.1%
Retardant: 0.15%
Superplasticizer: 0.35%.
In a preferred embodiment, gravity flow self-leveling floor mortar contains following component according to weight percent: cement: 10-20%, high-alumina cement: 6-12%, alpha-semi water plaster stone: 3-8%, quartz sand: 27-48.3%, flyash: 3-8%, HPMC:0.01-0.05%, latex powder: 1-3%, defoamer: 0.015-0.05%, setting accelerator: 0.05-0.1%, retardant: 0.05-0.15%, superplasticizer: 0.01-0.35%, aliphatic polymeric isocyanate: 0.05-0.1%, calcium aluminate type expansion agent: 0.05-0.1%, powder high-efficiency water-reducing agent of poly-carboxylic acid: 0.05-0.15%, other additives: 0-0.3%, wherein, described quartz sand adopts following particle diameter and grating to require: 3-3.5mm contains 0-3% weight ratio, 1.8-2mm contains 25 ~ 35% weight ratios, 0.425 ~ 1.175mm contains 60-80% weight ratio, 0.001-0.424mm contains 0 ~ 3% weight ratio, alpha-semi water plaster stone pH value is 2.54, and density is that 2.93g/cm3, HPMC adopt 30,000 viscosity hydroxypropylmethyl Mierocrystalline celluloses.Also containing slag micropowder, it replaces cement 25% in cement, replaces high-alumina cement 27% in high-alumina cement.Described cement is No. 425, general silicon.Described latex powder is vinyl acetate and the ethylene copolymer rubber powder of 37%, the ethene of 29% and vinylchlorid and moon silicic acid vinyl acetate terpolymer rubber powder, the vinyl acetate of 21% and ethene and higher aliphatic vinyl acetate terpolymer rubber powder, the vinyl acetate of 11% and higher aliphatic vinyl acetate copolymerization rubber powder, and the mixture of the vinyl acetate homopolymerization rubber powder of 2%.Described defoamer is polyethers defoamer.Other additives described are the normal alkane of 0.1%, the hydroxyethyl ether cellulose of 0.1% and the hardening accelerator of 0.1%.Described superplasticizer is casein food grade, and described hardening accelerator is salts hardening accelerator.
Adopt following component and proportioning in a further advantageous embodiment: cement: 10-20%, high-alumina cement: 6-12%, alpha-semi water plaster stone: 3-8%, quartz sand: 27-48.3%, flyash: 3-8%, HPMC:0.01-0.05%, latex powder: 1-3%, defoamer: 0.015-0.05%, setting accelerator: 0.05-0.1%, retardant: 0.05-0.15%, superplasticizer: 0.01-0.35%, aliphatic polymeric isocyanate: 0.05-0.1%, calcium aluminate type expansion agent: 0.05-0.1%, powder high-efficiency water-reducing agent of poly-carboxylic acid: 0.05-0.15%.
Preparation method adopts following steps: (1) prepares each component according to preset blending ratio and weighs; (2) by the cement of 1/3 to half, the high-alumina cement of 1/3 to half, the quartz sand of half drops in stirrer, stirs 1-1.5 minute; (3) 2 minutes are left standstill; (4) by alpha-semi water plaster stone, flyash, HPMC, defoamer, setting accelerator, superplasticizer, calcium aluminate type expansion agent drops in stirrer, stirs 1-1.5 minute; (5) 2 minutes are left standstill; (6) by remaining cement, high-alumina cement, quartz sand drops in stirrer, stirs 1-1.5 minute; (7) 2 minutes are left standstill; (8) by latex powder, retardant, aliphatic polymeric isocyanate, powder high-efficiency water-reducing agent of poly-carboxylic acid drops in stirrer, stirs 3 minutes; (9) 2 minutes are left standstill; (10) clear water is poured into and after in container, described material to be added and to stir 3-10 minute to evenly; (11) 5-8 minute is left standstill; (12) again 1-3 minute is stirred.
Polyurethane elastic self-leveling mortar provided by the invention has merged snappiness, high tensile rate, has resistance to worn, high compressive strength, antifatigue, shock resistance and absorb impact, anti-aging, resistance to chemical attack, oil resistant, solvent resistant, weather resistance effect, curing molding only need less than 2 hours, Self-leveling, high temperature can afford 100° centigrade, low temperature can bear subzero 40 degrees Celsius of high-quality high-tech architecture functional materialss waiting good characteristics.Motorway, road, airport, heavy construction can be widely used in as Rapid-Repair, small-sized expansion joint, water-proof material; The expansion joint grouting being particularly suitable for highway, bridge etc. is built and the inspection well cover in town road and parking lot, open drain cover plate are built.Make to use it as road, airport Rapid-Repair can reduce curing time greatly, thus reduce direct economic loss, huge social benefit can also be produced.Make to use it as expansion joint injection material, then greatly can extend the work-ing life of expansion joint and bridge, and make the more comfortable safety of driving.
Above to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed method of the present invention design and the various improvement carried out of technical scheme, or directly apply to other occasion, all within protection scope of the present invention without improvement.
Claims (8)
1. a gravity flow self-leveling floor mortar, is characterized in that, contains following component according to weight percent:
Cement: 10-20%,
High-alumina cement: 6-12%,
Alpha-semi water plaster stone: 3-8%,
Quartz sand: 27-48.3%,
Flyash: 3-8%,
HPMC：0.01-0.05%，
Latex powder: 1-3%,
Defoamer: 0.015-0.05%,
Setting accelerator: 0.05-0.1%,
Retardant: 0.05-0.15%,
Superplasticizer: 0.01-0.35%,
Aliphatic polymeric isocyanate: 0.05-0.1%,
Calcium aluminate type expansion agent: 0.05-0.1%,
Powder high-efficiency water-reducing agent of poly-carboxylic acid: 0.05-0.15%,
Other additives: 0-0.3%,
Wherein,
Described quartz sand adopts following particle diameter and grating to require: 3-3.5mm contains 0-3% weight ratio, and 1.8-2mm contains 25 ~ 35% weight ratios, and 0.425 ~ 1.175mm contains 60-80% weight ratio, and 0.001-0.424mm contains 0 ~ 3% weight ratio;
Described latex powder is vinyl acetate and the ethylene copolymer rubber powder of 37%, the ethene of 29% and vinylchlorid and moon silicic acid vinyl acetate terpolymer rubber powder, the vinyl acetate of 21% and ethene and higher aliphatic vinyl acetate terpolymer rubber powder, the vinyl acetate of 11% and higher aliphatic vinyl acetate copolymerization rubber powder, and the mixture of the vinyl acetate homopolymerization rubber powder of 2%;
Described alpha-semi water plaster stone pH value is 2.54, and density is 2.93g/cm3;
Described HPMC adopts 30,000 viscosity hydroxypropylmethyl Mierocrystalline celluloses.
2. gravity flow self-leveling floor mortar as claimed in claim 1, is characterized in that, also containing slag micropowder, it replaces cement 25% in cement, replaces high-alumina cement 27% in high-alumina cement.
3. gravity flow self-leveling floor mortar as claimed in claim 1 or 2, it is characterized in that, described cement is No. 425, general silicon.
4. the gravity flow self-leveling floor mortar according to any one of claim 1-3, is characterized in that, described defoamer is polyethers defoamer.
5. the gravity flow self-leveling floor mortar according to any one of claim 1-4, is characterized in that, other additives described are the normal alkane of 0.1%, the hydroxyethyl ether cellulose of 0.1% and the hardening accelerator of 0.1%.
6. gravity flow self-leveling floor mortar as claimed in claim 5, it is characterized in that, described superplasticizer is casein food grade, and described hardening accelerator is salts hardening accelerator.
7. the preparation method of gravity flow self-leveling floor mortar as described in claim 1-6, is characterized in that, comprise the steps:
(1) prepare each component according to preset blending ratio and weigh;
(2) by the cement of 1/3 to half, the high-alumina cement of 1/3 to half, the quartz sand of half drops in stirrer, stirs 1-1.5 minute;
(3) 2 minutes are left standstill;
(4) by alpha-semi water plaster stone, flyash, HPMC, defoamer, setting accelerator, superplasticizer, calcium aluminate type expansion agent drops in stirrer, stirs 1-1.5 minute;
(5) 2 minutes are left standstill;
(6) by remaining cement, high-alumina cement, quartz sand drops in stirrer, stirs 1-1.5 minute;
(7) 2 minutes are left standstill;
(8) by latex powder, retardant, aliphatic polymeric isocyanate, powder high-efficiency water-reducing agent of poly-carboxylic acid drops in stirrer, stirs 3 minutes;
(9) 2 minutes are left standstill;
(10) clear water is poured into and after in container, described material to be added and to stir 3-10 minute to evenly;
(11) 5-8 minute is left standstill;
(12) again 1-3 minute is stirred.
8. the preparation method of gravity flow self-leveling floor mortar as claimed in claim 7, is characterized in that, material: clear water is the ratio of 1:0.175.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106316283A (en) * | 2016-08-18 | 2017-01-11 | 苏州大乘环保建材有限公司 | High-compatibility repair mortar and preparation method and use method thereof |
| CN106830855A (en) * | 2017-01-16 | 2017-06-13 | 罗来兵 | A kind of thick matter type gravity flowing levelling mortar |
| CN107098648A (en) * | 2017-05-16 | 2017-08-29 | 合肥蔚然花绿化工程有限公司 | A kind of Cement Concrete Pavement Reconstruction material and preparation method thereof |
| CN107540329A (en) * | 2017-09-26 | 2018-01-05 | 河南兴安新型建筑材料有限公司 | Quick-hardening cement based self-leveling mortar |
| CN109574602A (en) * | 2018-12-11 | 2019-04-05 | 北京建筑大学 | A kind of recycled fine aggregate gravity flowing levelling mortar and its preparation |
| CN109853906A (en) * | 2018-11-27 | 2019-06-07 | 湖北启利新材料股份有限公司 | A kind of construction technology of pottery sand terrace |
| CN110357544A (en) * | 2019-07-15 | 2019-10-22 | 天津炬实科技发展股份有限公司 | A kind of upper flow regime cracking resistance early-strength repairing mortar and preparation method thereof |
| CN113443885A (en) * | 2020-07-10 | 2021-09-28 | 青岛理工大学 | Grouting material and preparation and application thereof |
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| CN104513046A (en) * | 2013-09-29 | 2015-04-15 | 北京敬业达新型建筑材料有限公司 | Preparation method for antistatic cement-based self-levelling surface-layer mortar |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106316283A (en) * | 2016-08-18 | 2017-01-11 | 苏州大乘环保建材有限公司 | High-compatibility repair mortar and preparation method and use method thereof |
| CN106316283B (en) * | 2016-08-18 | 2019-02-19 | 苏州大乘环保新材有限公司 | High-compatibility mending mortar and preparation method thereof and application method |
| CN106830855A (en) * | 2017-01-16 | 2017-06-13 | 罗来兵 | A kind of thick matter type gravity flowing levelling mortar |
| CN107098648A (en) * | 2017-05-16 | 2017-08-29 | 合肥蔚然花绿化工程有限公司 | A kind of Cement Concrete Pavement Reconstruction material and preparation method thereof |
| CN107540329A (en) * | 2017-09-26 | 2018-01-05 | 河南兴安新型建筑材料有限公司 | Quick-hardening cement based self-leveling mortar |
| CN109853906A (en) * | 2018-11-27 | 2019-06-07 | 湖北启利新材料股份有限公司 | A kind of construction technology of pottery sand terrace |
| CN109574602A (en) * | 2018-12-11 | 2019-04-05 | 北京建筑大学 | A kind of recycled fine aggregate gravity flowing levelling mortar and its preparation |
| CN110357544A (en) * | 2019-07-15 | 2019-10-22 | 天津炬实科技发展股份有限公司 | A kind of upper flow regime cracking resistance early-strength repairing mortar and preparation method thereof |
| CN113443885A (en) * | 2020-07-10 | 2021-09-28 | 青岛理工大学 | Grouting material and preparation and application thereof |
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| CN105272104B (en) | 2017-01-25 |
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