CN104478349B - A kind of early strong high abrasion gravity flowing levelling mortar repaired for ground and preparation method thereof - Google Patents
A kind of early strong high abrasion gravity flowing levelling mortar repaired for ground and preparation method thereof Download PDFInfo
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- CN104478349B CN104478349B CN201410650380.3A CN201410650380A CN104478349B CN 104478349 B CN104478349 B CN 104478349B CN 201410650380 A CN201410650380 A CN 201410650380A CN 104478349 B CN104478349 B CN 104478349B
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Abstract
The invention discloses a kind of early strong high abrasion gravity flowing levelling mortar repaired for ground and preparation method thereof, it is prepared from by the component of following mass percent：P.052.5 Portland cement 35%~40%；Mineral admixture 15%~20%；Quartz sand or diamond dust 40%~55%；Extraordinary antimitotic agent 4%~6%；Import organic binder bond 0.5%~1%；Inorganic salts strength promoter 0.3%~0.5%；Organic defoamer 0.1%~0.2%；High-performance water reducing agent 0.2%~0.4%；Stabilizer cellulose 0.2%~0.4%；Anti-erosion additive 0.2%~0.5%.The present invention uses Self-leveling construction technology, reduces manpower, financial resources and material resources, remarkable in economical benefits；A high proportion of mineral admixture is added, environmental protection and waste utilization, social benefit is notable；Wearability is good, and high ground is required available for wearability；Good corrosion resistance, the ground available for villaumite, the heavier environment of sulphate corrosion.
Description
Technical field
The present invention relates to a kind of dry powder and mortar and preparation method thereof, and in particular to a kind of for the early strong high resistance to of ground repairing
Grind gravity flowing levelling mortar and preparation method thereof.
Background technology
Since 1970s, research and development produce auto-flowing floor material in succession for the developed country such as Japan and America and Europe
Material, and be widely used.Basis has been made to gypsum-based self-leveling material by residences in Japan community first in 1972-1973
Research, to using alpha-semi water plaster stone to carry out construction test for the gypsum-based self-leveling material of base-material, 1977 existing within 1976
Gypsum-based self-leveling material commodity selling.It is 20- that the Pa Yiailuo companies of subsequent West Germany produce intensity with II type anhydrous gypsums
30MPa, laying depth 10mm self-leveling material.American Gypsum cement company once uses α, β-gypsum mixtures, adds at the scene
Obtain being pumped from levelling material after people's aggregate.At present, gypsum-based self-leveling material is in commercial mansion, teaching building, condominium etc.
The ground of building has been applied, but due to gypsum-based self-leveling material water resistance is poor, in neutral or acid, to iron
Part has the danger of corrosion, thus is restricted using scope.With the development of modern industry, corrosion-resistant to workshop ground,
Dust-proof, intensity etc. proposes higher requirement, occurs in that organic polymer system gravity flow flat ground material, such as epoxy resin, poly-
The floor materials such as urethane class, acrylic acid (crosslinking) class.But, because solvent type epoxy floor material is in production, construction and solidifies
During can discharge a certain amount of volatile organic matter (VOC), be harmful to health, with to environmental protection pay attention to day by day and cement
The raising of based self-leveling material performance, cement-based self-leveling material starts to show bigger than epoxy floor material in industrial ground
Advantage.Nineteen eighty-two, Japan starts cement-based self-leveling earth material occur, and because its purposes is wide, consumption is big, steady quality,
It has been commercially available and has developed rapidly and widely accept, other developed countries has also released one after another the cement base gravity flows of various brands
Flat ground material, the particularly countries and regions using America and Europe as representative.Current American-European countries and Japan are in cement-based self-leveling material
Expect that development and application aspect is quite ripe, application is very wide, application amount is also very big, according to data statistics, European water
Application of the mud based self-leveling material in terrace industry has reached 1,500,000 tons/year, 100,000,000 square meters, wherein the consumption of Germany is 270,000
Ton/year or so, using area in 20,000,000 square meters.
At present, the problem of there is poor-performing and be of less types in China's cement-based self-leveling mortar.Due to gravity flowing levelling mortar
Early strength is low, surface ashing wearability is not enough and consequence that is bringing is can hardly to regard gravity flowing levelling mortar as the face of terrace
Layer, and epoxy resin gravity flowing levelling mortar or other earth materials can only be reused on Self-leveling screed-coat as decoration
Layer.Although having the advantages that good mobility, surface quality are high using epoxy resin gravity flowing levelling mortar, it is to base material and applies
The requirement of work is higher, and expensive.The cement-based self-leveling mortar generally plain edition that the country is produced at present, lacks 2
People's walking rapid-hardening self-leveling mortar, industrial abrasion-resistant ground self-leveling material, high performance ground self-leveling can be gone up within~6 hours
Material etc..Therefore developing high-quality, economic fast hydraulic cement based self-leveling mortar has actual engineering practical value.
Existing mortar generally requires various cement mixing so that finished product is not easily controlled to realize that it is early strong simultaneously.It is resistance to
Poor, the corrosion-resistant of mill property.
At present, the cement-based self-leveling mortar product generally existing early strength of in the market is low, surface easily occur efflorescence,
The phenomenons such as dusting, cracking.On raw material more by special cement be base material, high expensive.
The content of the invention
To solve the above problems, the invention provides a kind of early strong high abrasion gravity flowing levelling mortar repaired for ground and its
Preparation method, without using quick-hardening cement, by using organic and inorganic chemistry auxiliary agent, using only ordinary portland cement, gather materials, mineral
In the case of admixture and additive, by assay optimization, optimised process proportioning is obtained, the gravity flowing levelling mortar early strength is realized
Height, preferable adhesion strength, higher corrosion resistance, high-wearing feature feature.In addition, the present invention is ensureing mortar with higher morning
Under phase intensity, a large amount of incorporation industrial waste flyash or slag powders, improve the service behaviour of mortar, while also dropping in raw material
The low energy and resource consumption of product, is that the greenization of product opens a new way.
To achieve the above object, the technical scheme taken of the present invention is：
A kind of early strong high abrasion gravity flowing levelling mortar repaired for ground, is prepared from by the component of following parts by weight：
The mineral admixture is the mixture of flyash and dicalcium powder, or miberal powder and dicalcium powder mixture, the stone
Sand or diamond dust are 20~70 mesh, and dicalcium powder is 800 mesh, and the extraordinary antimitotic agent is modified UEA swelling agents, and the import has
Machine binding agent is import latex powder, and the inorganic salts strength promoter is：Lithium carbonate, organic defoamer is modified poly- two
Methylsiloxane class, the high-performance water reducing agent is the high performance water reducing agent of polyocarboxy acid that concentration is 40%, and the stabilizer is
The mixture of 0.2%~0.4% hydroxymethyl cellulose and 0.1%~0.2% wood fibre, the anti-erosion additive is
Import efficient antiseptic.
Wherein, the ratio of the mixture of described flyash and dicalcium powder and P.052.5 Portland cement is 2:
(3.5~4).
Wherein, the ratio of the mixture of miberal powder and dicalcium powder and P.052.5 Portland cement is 1.5: (3.5~4).
Wherein, quartz sand or diamond dust can be using the mixing of following ratio：70% 20~40 mesh particle diameters and the 40 of 30%~
70 mesh particle diameters are used in mixed way, or directly using suitable graded sand of 20~70 mesh.
A kind of above-mentioned early strong high abrasion gravity flowing levelling mortar for ground repairing is prepared by the following method：
S1, by above-mentioned mass percent component cement, mineral admixture, extraordinary antimitotic agent, stabilizer and import are had
Machine binding agent and organic defoamer are placed in agitating device and mixed 5~8 minutes, obtain mixture；
S2, by above-mentioned mass percent component by high-performance water reducing agent using spraying form be slowly uniformly sprayed at step
On mixture obtained by rapid S1, spray time is no less than 2 minutes, does not stop stirring in spray process, it is ensured that high-performance water reducing agent
It is uniformly dispersed in powder；
S3, by above-mentioned mass percent component by inorganic salts strength promoter, anti-erosion additive, quartz sand or Buddha's warrior attendant
Sand is added in the mixture obtained by step S2, is continued to make it be sufficiently mixed uniformly after stirring 10~15 minutes, is got product.Use
Before, mixture must accomplish waterproof and dampproof, when in use, and the gravity flowing levelling mortar finished product that the present invention is obtained is with water by 100: 18
Ratio be used in mixed way.
The invention has the advantages that：Using Self-leveling construction technology, manpower, financial resources and material resources, economy effect are reduced
It is beneficial notable；A high proportion of mineral admixture is added, environmental protection and waste utilization, social benefit is notable；Wearability is good, available for wearability requirement
High ground；Good corrosion resistance, the ground available for villaumite, the heavier environment of sulphate corrosion.
Embodiment
In order that objects and advantages of the present invention are more clearly understood, the present invention is carried out with reference to embodiments further
Describe in detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit this hair
It is bright.
In following examples, used raw material is as follows：
The mineral admixture is the mixture of flyash and dicalcium powder, or miberal powder and dicalcium powder mixture, the stone
Sand or diamond dust are 20~70 mesh, and dicalcium powder is 800 mesh, and the extraordinary antimitotic agent is modified UEA swelling agents, and the import has
Machine binding agent is import latex powder, and the inorganic salts strength promoter is：Lithium carbonate (0.3%~0.5%) or alum
(3%~5%), organic defoamer is modified dimethyl polysiloxane class, and the high-performance water reducing agent is 40% concentration
High performance water reducing agent of polyocarboxy acid, the stabilizer be hydroxymethyl cellulose (0.2%~0.4%) and wood fibre (0.1%~
0.2%), the anti-erosion additive is import efficient antiseptic.
Embodiment 1
Will P.052.5 Portland cement 35kg, mineral admixture 15kg (wherein dicalcium powder 10kg, slag powders 5kg),
Extraordinary antimitotic agent 4kg, import organic binder bond 0.5kg, organic defoamer 0.1kg, stabilizer cellulose 0.2kg, are placed in stirring
Mixed 5 minutes in device, obtain mixture；0.4kg high-performance water reducing agents are slowly uniformly sprayed at using the form of spraying
On the mixture of gained, spray time is no less than 2 minutes, does not stop stirring in spray process, it is ensured that high-performance water reducing agent is in powder
It is uniformly dispersed in material；Add inorganic salts strength promoter 0.3kg, quartz sand 45kg (wherein 20~40 mesh 31.5kg, 40~70 mesh
13.5kg), anti-erosion additive 0.2kg, continues to make it be sufficiently mixed uniformly after stirring 10 minutes, you can use, be sufficiently mixed,
After stirring 10 minutes, get product.
Embodiment 2
To P.052.5 Portland cement 35kg, mineral admixture 20kg (wherein dicalcium powder 10kg, flyash
10kg), extraordinary antimitotic agent 6kg, import organic binder bond 1kg, organic defoamer 0.2kg, stabilizer cellulose 0.4kg, are placed in
Mixed 8 minutes in agitating device, obtain mixture；0.4kg high-performance water reducing agents are slowly uniformly sprayed using the form of spraying
On the mixture for being sprinkled upon gained, spray time is no less than 2 minutes, does not stop stirring in spray process, it is ensured that high-performance water reducing agent
It is uniformly dispersed in powder；Add inorganic salts strength promoter 0.5kg, diamond dust 40kg (wherein 20~40 mesh 28kg, 40~70
Mesh 12kg), anti-erosion additive 0.5kg, continue stir 15 minutes after it is sufficiently mixed uniformly, get product.
Embodiment 3
To P.052.5 Portland cement 37.5kg, mineral admixture 17.5kg (wherein dicalcium powder 10kg, flyash
7.5kg), extraordinary antimitotic agent 5kg, import organic binder bond 0.75kg, organic defoamer 0.15kg, stabilizer cellulose 0.3kg,
It is placed in agitating device and mixes 6.5 minutes, obtains mixture；0.3kg high-performance water reducing agents is slow using the form of spraying
Uniform to be sprayed on the mixture of gained, spray time is no less than 2 minutes, does not stop stirring in spray process, it is ensured that high-performance
Water reducer is uniformly dispersed in powder；Add inorganic salts strength promoter 0.4kg, quartz sand 20kg (mixing of 20~70 mesh), gold
Emery 20kg (mixing of 20~70 mesh), anti-erosion additive 0.35kg, continue to make it be sufficiently mixed after stirring 10~15 minutes
It is even, get product.
After testing, obtained by embodiment 1-3 mortar mobility, the intensity of early stage and 28 days wanting more than country JC/T 985
Ask；Wearability is higher, less than 0.2 gram；Coefficient against corrosion is higher, more than 0.9.
In summary, this specific implementation uses Self-leveling construction technology, reduces manpower, financial resources and material resources, and economic benefit shows
Write；A high proportion of mineral admixture is added, environmental protection and waste utilization, social benefit is notable；Wearability is good, requires high available for wearability
Ground；Good corrosion resistance, the ground available for villaumite, the heavier environment of sulphate corrosion.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member for, under the premise without departing from the principles of the invention, can according to made using raw material and purity difference it is some
Modifications and adaptations, these modifications and adaptations also should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of early strong high abrasion gravity flowing levelling mortar repaired for ground, it is characterised in that by the component of following mass fraction
It is prepared from：
The mineral admixture is the mixture of flyash and dicalcium powder, or miberal powder and dicalcium powder mixture, the quartz sand
Or diamond dust is 20~70 mesh, dicalcium powder is 800 mesh, and the extraordinary antimitotic agent is modified UEA swelling agents, and the import is organic viscous
Knot agent is import latex powder, and the inorganic salts strength promoter is：Lithium carbonate, organic defoamer is modified polydimethyl silicon
Oxygen alkanes, the high-performance water reducing agent is the high performance water reducing agent of polyocarboxy acid that concentration is 40%, the stabilizer is 0.2%~
The mixture of 0.4% hydroxymethyl cellulose and 0.1%~0.2% wood fibre, the anti-erosion additive is that import is high
Imitate preservative.
2. a kind of early strong high abrasion gravity flowing levelling mortar repaired for ground according to claim 1, it is characterised in that institute
The flyash and the mixture of dicalcium powder and the ratio of P.O52.5 Portland cements stated are 2: (3.5~4).
3. a kind of early strong high abrasion gravity flowing levelling mortar repaired for ground according to claim 1, it is characterised in that ore deposit
The ratio of the mixture and P.O52.5 Portland cements of powder and dicalcium powder is 1.5: (3.5~4).
4. a kind of early strong high abrasion gravity flowing levelling mortar repaired for ground according to claim 1, it is characterised in that stone
Sand or diamond dust are mixed using following ratio：70% 20~40 mesh particle diameters are used in mixed way with 30% 40~70 mesh particle diameters,
Or directly using suitable graded sand of 20~70 mesh.
5. a kind of preparation method of early strong high abrasion gravity flowing levelling mortar repaired for ground as claimed in claim 1, it is special
Levy and be, comprise the following steps：
S1, the mass percent component as described in claim 1 are by cement, mineral admixture, extraordinary antimitotic agent, stabilizer and enter
Mouth organic binder bond and organic defoamer are placed in agitating device and mixed 5~8 minutes, obtain mixture；
S2, the mass percent component as described in claim 1 slowly uniformly spray high-performance water reducing agent using the form of spraying
It is sprinkled upon on the mixture obtained by step S1, spray time is no less than 2 minutes, does not stop stirring in spray process, it is ensured that high-performance
Water reducer is uniformly dispersed in powder；
S3, the mass percent component as described in claim 1 are by inorganic salts strength promoter, anti-erosion additive, quartz sand
Or diamond dust is added in the mixture obtained by step S2, continue to make it be sufficiently mixed uniformly after stirring 10~15 minutes, produce into
Product.
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| CN105236894A (en) * | 2015-10-29 | 2016-01-13 | 华南理工大学 | Anti-shrinkage self-leveling mortar with good self-healing property for bedding layer and preparation method thereof |
| CN106187057A (en) * | 2016-07-04 | 2016-12-07 | 德清扬泰建筑材料有限公司 | A kind of cement-based self-leveling dry powder and mortar and preparation method thereof |
| CN106365558B (en) * | 2016-08-30 | 2018-11-02 | 派丽(上海)管理有限公司 | A kind of gravity flowing levelling mortar with water-proof function |
| CN106738270B (en) * | 2016-11-21 | 2018-09-25 | 哈尔滨工业大学 | Utilize the method for intervening nature aquation method control Concrete Material upper surface level |
| CN106746954A (en) * | 2016-11-25 | 2017-05-31 | 河池永固混凝土有限责任公司 | Polymer modification mending mortar |
| CN106746956A (en) * | 2016-11-25 | 2017-05-31 | 河池永固混凝土有限责任公司 | Rapid-Repair polymer mortar |
| CN111153661B (en) * | 2020-01-10 | 2021-10-08 | 深圳市蛇口招商港湾工程有限公司 | Sulphoaluminate cement-based material for ocean repairing protection engineering and preparation method thereof |
| CN111484296A (en) * | 2020-05-09 | 2020-08-04 | 湖南省富民乐建材科技发展有限公司 | Self-leveling formula and leveling process thereof |
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| CN101648797A (en) * | 2009-06-29 | 2010-02-17 | 上海东升新材料有限公司 | Self-leveling terrace powder mortar composite |
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| CN101648797A (en) * | 2009-06-29 | 2010-02-17 | 上海东升新材料有限公司 | Self-leveling terrace powder mortar composite |
| CN101786850A (en) * | 2010-01-08 | 2010-07-28 | 北京天维宝辰化学产品有限公司 | Modified cement-based self-leveling mortar and preparation method and application thereof |
| CN101870573A (en) * | 2010-06-29 | 2010-10-27 | 上海英硕聚合物材料有限公司 | Acrylic acid modified waterproof mortar |
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Address after: 110005 Heping 88 South Avenue, Heping District, Liaoning, Shenyang Patentee after: Liaoning Construction Science Research Institute Co Ltd Address before: 110005 Heping 88 South Avenue, Heping District, Liaoning, Shenyang Patentee before: Architectural Science Research Inst., Liaoning Prov. |