CN105272104B - Self-leveling floor mortar and preparation method thereof - Google Patents
Self-leveling floor mortar and preparation method thereof Download PDFInfo
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- CN105272104B CN105272104B CN201510333054.4A CN201510333054A CN105272104B CN 105272104 B CN105272104 B CN 105272104B CN 201510333054 A CN201510333054 A CN 201510333054A CN 105272104 B CN105272104 B CN 105272104B
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- leveling floor
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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 construction material is and in particular to a kind of gravity flow self-leveling floor mortar and preparation method thereof.
Background technology
What mortar referred to architectural use of laying bricks coheres material, by a certain proportion of sand and cementing material (cement, Calx
Cream, clay etc.) add water into, also it is mortar, also make mortar.Mortar is by Binder Materials (cement, Calx, clay etc.) and thin bone
Material (sand) mix that adds water forms.Conventional has cement mortar, 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 chemistry interpolation on a small quantity
Agent, the powder product being uniformly mixed into by certain production technology.During use, after the stirring pulp that adds water, there is fabulous stream
Dynamic property, slightly Automatic Levelling can form smooth surface through paving using pumping cast.Gravity flowing levelling mortar is constructure ground essence
Levelling ideal material, can be used as the place mat substrate of all kinds of floor decorative materials, also can be directly as terrace.Add inorganic
Pigment, brushing water-base resin class floor coatings also can form the color floor with decorative effect.Gravity flowing levelling mortar is prominent because of it
Construction and serviceability, swift and violent in the penetration and promotion impetus of China at present.But, because gravity flowing levelling mortar is by multiple material
The complication system of composition, requires very strict to the kind of raw material, specification, consumption and its collocation.Commercially available prod generally existing
Number of drawbacks, and performance is not sufficiently stable, and affects its promotion and application.
Content of the invention
It is an object of the invention to provide a kind of gravity flow self-leveling floor mortar and preparation method thereof, there is excellent mobility,
Automatically accurate levelling ground, and also enable good caking property, smooth, not hollowing using garbage coal ash.Particular technique
Scheme is as follows:
A kind of gravity flow self-leveling floor mortar, contains following component according to percentage by weight:
Cement: 10-20%,
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%,
Coagulant: 0.05-0.1%,
Retarder: 0.05-0.15%,
Super plasticizer: 0.01-0.35%,
Aliphatic polymeric isocyanate: 0.05-0.1%,
Calcium aluminate type expansion agent: 0.05-0.1%,
Powder body high-efficiency water-reducing agent of poly-carboxylic acid: 0.05-0.15%,
Other additives: 0-0.3%,
Wherein,
Described quartz sand is joined requirement: 3-3.5mm using following particle diameter and level and is contained 0-3% weight ratio, and 1.8-2mm contains 25
～35% weight ratio, 0.425～1.175mm contains 60-80% weight ratio, and 0.001-0.424mm contains 0～3% weight ratio；
Described latex powder is 37% vinylacetate and ethylene copolymer rubber powder, 29% ethylene and vinyl chloride and moon silicic acid second
Alkene ester ternary polymerization rubber powder, 21% vinylacetate and ethylene and higher aliphatic vinyl acetate ternary polymerization rubber powder, 11% vinegar
Vinyl acetate and higher aliphatic vinyl acetate copolymerization rubber powder, and the mixture of 2% vinylacetate homopolymerization rubber powder；
Described alpha-semi water plaster stone ph value is 2.54, and density is 2.93g/cm3；
Described hpmc adopts 30,000 viscosity hydroxypropylmethyl celluloses.
Further, also contain slag micropowder, it replaces cement 25% in cement, alumina cement replaces high alumina water
Mud 27%.
Further, described cement is general silicon 425.
Further, described defoamer is polyethers defoamer.
Further, other additives described are 0.1% normal alkane, 0.1% hydroxyethyl ether cellulose and 0.1% morning
Strong agent.
Further, described super plasticizer is casein, and described early strength agent is salts early strength agent.
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 alumina cement of 1/3 to half, the quartz sand of half puts in blender, stirs
Mix 1-1.5 minute；
(3) 2 minutes are stood；
(4) by alpha-semi water plaster stone, flyash, hpmc, defoamer, coagulant, super plasticizer, calcium aluminate type expansion agent puts into
In blender, stir 1-1.5 minute；
(5) 2 minutes are stood；
(6) by remaining cement, alumina cement, quartz sand puts in blender, stirs 1-1.5 minute；
(7) 2 minutes are stood；
(8) by latex powder, retarder, aliphatic polymeric isocyanate, powder body high-efficiency water-reducing agent of poly-carboxylic acid puts in blender,
Stirring 3 minutes；
(9) 2 minutes are stood；
(10) after pouring clear water in container into, described material is added and stirs 3-10 minute to uniform；
(11) stand 5-8 minute；
(12) it is again stirring for 1-3 minute.
Further, material: clear water is the ratio of 1:0.175.
Compared with currently available technology, the present invention can utilize garbage coal ash, thus environmental protection and energy saving；Wear-resisting, durable；Tool
There is excellent mobility, automatically accurate levelling ground；People's walking can be gone up after 34 hours, light-duty traffic after 24 hours, can be opened；
Do not increase absolute altitude, ground floor thin 2-5 millimeter, material-saving, reduces cost；Good caking property, smooth, not hollowing；To human body
Harmless, radiationless.Specifically: adopt flyash and slag part to replace cement in raw material, on the one hand for twice laid,
The pollution to environment can be reduced and reduce cement consumption, save energy, still further aspect, fill slag, using its glass microballoon effect
Should, improve mix mobility, reduce chemical admixture volume, reduces cost；Cement can also be replaced using SILICA FUME part,
Improve the intensity after gravity flowing levelling mortar water-retaining property and hardening and density；Packed bags with on-spot is mixed and stirred, and reduces environmental pollution, operation letter
Just, realize Self-leveling, reduce cost of labor；Can also be reached by the non-research work of air entrained type extender of admixture further and compensate and slightly micro-
The effect expanding, makes that the material after hardening has the characteristics that high fine and close, high impervious, high cohesive force and stability, water-retaining property are good.
Specific embodiment
Describe the present invention below, it is one of numerous embodiments of the present invention preferred embodiment.
In one embodiment using following component and proportioning:
Cement (preferably general silicon 425): 20%
Alumina cement: 12%
Gypsum Fibrosum: 8%
Quartz sand: 48.3%
Flyash: 8%
30000 viscosity hpmc(hydroxypropyl methyl celluloses): 0.05%
Latex powder: 3%
Defoamer: 0.05%
Coagulant: 0.1%
Retarder: 0.15%
Super plasticizer: 0.35%.
In a preferred embodiment, gravity flow self-leveling floor mortar contains following component: cement: 10- according to percentage by weight
20%, 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%, coagulant: 0.05-0.1%, retarder: 0.05-0.15%, surpass and mould
Agent: 0.01-0.35%, aliphatic polymeric isocyanate: 0.05-0.1%, calcium aluminate type expansion agent: 0.05-0.1%, the poly- carboxylic of powder body
Sour high efficiency water reducing agent: 0.05-0.15%, other additives: 0-0.3%, wherein, described quartz sand is joined using following particle diameter and level will
Ask: 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 2.93g/cm3,
Hpmc adopts 30,000 viscosity hydroxypropylmethyl celluloses.Also contain slag micropowder, it replaces cement 25% in cement, in high alumina water
Alumina cement 27% is replaced in mud.Described cement is general silicon 425.Described latex powder is 37% vinylacetate and ethylene copolymer
Rubber powder, 29% ethylene and vinyl chloride and moon silicic acid vinyl acetate ternary polymerization rubber powder, 21% vinylacetate and ethylene and senior
Fatty acid vinyl ester ternary polymerization rubber powder, 11% vinylacetate and higher aliphatic vinyl acetate copolymerization rubber powder, and 2% vinegar
The mixture of vinyl acetate homopolymerization rubber powder.Described defoamer is polyethers defoamer.Other additives described are 0.1% nalka
Hydrocarbon, 0.1% hydroxyethyl ether cellulose and 0.1% early strength agent.Described super plasticizer is casein, and described early strength agent is salts
Early strength agent.
Adopt following component and proportioning: cement: 10-20% in a further advantageous embodiment, alumina cement: 6-12%, α-
Semi-hydrated gypsum: 3-8%, quartz sand: 27-48.3%, flyash: 3-8%, hpmc:0.01-0.05%, latex powder: 1-3%, defoamer:
0.015-0.05%, coagulant: 0.05-0.1%, retarder: 0.05-0.15%, super plasticizer: 0.01-0.35%, aliphatic poly is different
Cyanate: 0.05-0.1%, calcium aluminate type expansion agent: 0.05-0.1%, powder body 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 1/3 to half
Cement, the alumina cement of 1/3 to half, the quartz sand of half puts in blender, stirs 1-1.5 minute；(3) 2 points are stood
Clock；(4) by alpha-semi water plaster stone, flyash, hpmc, defoamer, coagulant, super plasticizer, calcium aluminate type expansion agent puts into stirring
In machine, stir 1-1.5 minute；(5) 2 minutes are stood；(6) by remaining cement, alumina cement, quartz sand puts in blender,
Stirring 1-1.5 minute；(7) 2 minutes are stood；(8) by latex powder, retarder, aliphatic polymeric isocyanate, powder body polycarboxylic acids are efficient
Water reducer puts in blender, stirs 3 minutes；(9) 2 minutes are stood；(10) after pouring clear water in container into, described material is added
Enter and stir 3-10 minute to uniform；(11) stand 5-8 minute；(12) it is again stirring for 1-3 minute.
The polyurethane elastic self-leveling mortar that the present invention provides has merged high resiliency, high tensile rate, wear-resistant, high resistance to compression
Intensity, resisting fatigue, shock resistance simultaneously absorb impact, aging resistance, resistance to chemical attack, oil resistant, solvent resistant, weather resistance effect, are solidified into
Type only need to less than 2 hours, Self-leveling, high temperature can afford 100° centigrade, low temperature can bear subzero 40 degrees Celsius etc. excellent
The high-quality high-tech architecture functional material of characteristic.Can be widely applied to highway, road, airport, heavy construction as quick
Repairing, small-sized expansion joint, waterproof material；The expansion joint grouting being particularly suitable for highway, bridge etc. pours and town road
Pour with the inspection well cover in parking lot, bright trench cover.Use it as road, when airport Rapid-Repair can substantially reduce maintenance
Between, thus reducing direct economic loss, huge social benefit can also being produced.Use it as expansion joint grouting material, then may be used
To greatly prolong the service life at expansion joint and bridge, and make the more comfortable safety of driving.
Above the present invention is exemplarily described it is clear that the present invention implements is not subject to the restrictions described above,
As long as employing method of the present invention design and the various improvement that carry out of technical scheme, or not improved directly apply to other fields
Close, all within protection scope of the present invention.
Claims (6)
1. a kind of gravity flow self-leveling floor mortar is it is characterised in that contain following component according to percentage by weight:
Cement: 10-20%,
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%,
Coagulant: 0.05-0.1%,
Retarder: 0.05-0.15%,
Super plasticizer: 0.01-0.35%,
Aliphatic polymeric isocyanate: 0.05-0.1%,
Calcium aluminate type expansion agent: 0.05-0.1%,
Powder body high-efficiency water-reducing agent of poly-carboxylic acid: 0.05-0.15%,
Other additives: 0-0.3%,
Wherein,
Described quartz sand is joined requirement: 3-3.5mm using following particle diameter and level and is contained 0-3% weight ratio, and 1.8-2mm contains 25～
35% weight ratio, 0.425～1.175mm contains 60-80% weight ratio, and 0.001-0.424mm contains 0～3% weight ratio；
Described latex powder is 37% vinylacetate and ethylene copolymer rubber powder, 29% ethylene and vinyl chloride and moon silicic acid vinyl acetate
Ternary polymerization rubber powder, 21% vinylacetate and ethylene and higher aliphatic vinyl acetate ternary polymerization rubber powder, 11% acetic acid second
Alkene ester and higher aliphatic vinyl acetate copolymerization rubber powder, and the mixture of 2% vinylacetate homopolymerization rubber powder；
Described alpha-semi water plaster stone ph value is 2.54, and density is 2.93g/cm3；
Described hpmc adopts 30,000 viscosity hydroxypropylmethyl celluloses.
2. it is characterised in that also containing slag micropowder, it takes in cement gravity flow self-leveling floor mortar as claimed in claim 1
For cement 25%, alumina cement replaces alumina cement 27%.
3. gravity flow self-leveling floor mortar as claimed in claim 1 or 2 is it is characterised in that described cement is general silicon 425.
4. gravity flow self-leveling floor mortar as claimed in claim 1 or 2 is it is characterised in that described defoamer is polyethers defoamer.
5. gravity flow self-leveling floor mortar as claimed in claim 1 or 2 is it is characterised in that other additives described are 0.1% just
Alkane, 0.1% hydroxyethyl ether cellulose and 0.1% early strength agent.
6. gravity flow self-leveling floor mortar as claimed in claim 5 it is characterised in that described super plasticizer be casein, described morning
Strong agent is salts early strength agent.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| 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 |
| CN107098648B (en) * | 2017-05-16 | 2019-06-21 | 广东嘉集建筑工程有限公司 | A kind of Cement Concrete Pavement Reconstruction material and preparation method thereof |
| CN109853906B (en) * | 2018-11-27 | 2020-01-21 | 湖北启利新材料股份有限公司 | Construction process of ceramic 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 |
| CN111732401A (en) * | 2020-07-10 | 2020-10-02 | 青岛理工大学 | Anti-corrosion concrete grouting material for coastal structure connection and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101497514B (en) * | 2008-06-05 | 2011-11-30 | 北京联合荣大工程材料有限责任公司 | Low cost cement self-leveling mortar |
| CN103332901A (en) * | 2013-06-27 | 2013-10-02 | 杭州正博新型建筑材料有限公司 | Anti-cracking waterproof mortar |
| 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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| 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 |
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