CN102936115B - Production method of cement-based grouting material - Google Patents
Production method of cement-based grouting material Download PDFInfo
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- CN102936115B CN102936115B CN201210458156.5A CN201210458156A CN102936115B CN 102936115 B CN102936115 B CN 102936115B CN 201210458156 A CN201210458156 A CN 201210458156A CN 102936115 B CN102936115 B CN 102936115B
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Abstract
The invention provides a production method of a cement-based grouting material. The method comprises the steps that aggregate and/or a binding material are mixed with a liquid additive, weight ratio of the aggregate and/or the binding material with the liquid additive in the mixture is (90-110) : (0.1-30); the obtained mixture is subjected to a drying process and can be mixed with polymer rubber powder which can re-disperse to obtain the cement-based grouting material. According to the production method, a liquid additive which is not easy to dehydrate and dry, which relates to polycarboxylate superplasticizer particularly, can be dried easily, the performance of the additive can be retained to the greatest extent, the aggregate or the binding material which is subjected to preprocessing of the liquid additive is mixed into other materials according to a specified proportion of the cement-based grouting material, and a cement-based grouting material product with good performance can be produced.
Description
Technical field
The invention belongs to building materials field, be specifically related to a kind of production method of strength cement-based grouting material.
Background technology
Strength cement-based grouting material is taking cement as base material, add in right amount natural high strength aggregate, the compositions such as concrete admixture be dry mixed material, after blunge, there is high fluidity, early strong, high-strength, the characteristics such as microdilatancy, be widely used in the back-grouting of Equipment Foundations, the grouting of steel structure column basis, the small gap bonding grouting such as track foundation, subway, tunnel, underground works backhander method construction joint build-in, foot bolt fastening, cable trench Fast Filling, beams of concrete, post, plate, the reinforcing and repairing grouting of wall, other normal concretes are difficult to the irregular dead angle of cast, corner and the reparation of concrete porosity supplementary irrigation etc.
In modern concrete technology, in the additive that needs to use, maximum one is high-performance water reducing agent, since particularly using polycarboxylate water-reducer in a large number in recent years, as self-leveling concrete, ultra high strength concrete, artificial marble etc., can easily realize, high performance concrete even can exceed the performance of steel in a lot of fields.Strength cement-based grouting material technology is rapid in development recent years, but traditional technology is all to use powdery water reducer product, as naphthalene system, the sodium lignosulfonate etc. of powdery.Due to the moisture content of the necessary strict hierarchy of control in strength cement-based grouting material production process, the use of polycarboxylate water-reducer is very restricted.Polycarboxylate water-reducer is third generation high-performance water reducing agent, and its molecular weight is higher, and can not be high temperature resistant, so be difficult to be processed into powder-like product.At present, the powder product of domestic production polycarboxylate water-reducer is mainly to make by spray-dired method, this method need to be used higher spray tower, and by polycarboxylate water-reducer by atomisation under high pressure, sometimes need to add nucleator, vaporific polycarboxylate water-reducer sprays into from tower top, and appropriate location, bottom is blown into the high temperature drying air of 200 DEG C of left and right, in tens seconds, by the water evaporates of polycarboxylate water-reducer, obtain powdery polycarboxylic acid water reducer product.This production process energy consumption is large, and cost is high, and polycarboxylate water-reducer generally can decline approximately 10～20% in performance after pyroprocessing.Because temperature is higher, powdery polycarboxylic acid water reducer is easily clamminess again, if control improperly in liquid product quality fluctuation or drying process, tower accident very easily occurs to burn.
The technology of polycarboxylate water-reducer is also in constantly improving, but because powdery polycarboxylic acid water reducer difficulty of processing is large, and energy consumption is high, cost is high, makes it be difficult to apply in strength cement-based grouting material.If can not address this problem, will make through after the high-performance water reducing agent technology of many types of exploitation, in strength cement-based grouting material, use for no reason at all.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of production method of strength cement-based grouting material is provided, can retain to greatest extent the performance of additive itself.
A production method for strength cement-based grouting material, is characterized in that, comprises the following steps:
Step 1, mixes aggregate and/or gelling material with fluid additive, wherein the weight ratio 90-110:0.1-30 of aggregate and/or gelling material and fluid additive in mixture;
Step 2, by the mixture drying treatment of step 1 gained, and is mixed and made into strength cement-based grouting material with redisperable polymer powder.
Further, described step 2 is: by after the mixture drying treatment of step 1 gained, with redisperable polymer powder with the aggregate of absorption additive and/or gelling material and/or strength cement-based grouting material solid additive are not mixed and made into strength cement-based grouting material.
In the production method of above-mentioned strength cement-based grouting material, raw material preferably includes aggregate, gelling material and additive, and its weight ratio is as follows:
Aggregate 55-200 weight part;
Gelling material 40-90 weight part;
Redisperable polymer powder 0.1-5 weight part;
Fluid additive 0.05-20 weight part.
Preferably, aggregate described in step 1 and/or gelling material particle surface be smooth, there is no pore, can rapid drying after adsorptive liquid additive, and wherein, described pore aperture is less than 0.1mm.
In foregoing invention content, described aggregate can be a kind of material in the particle of yellow sand, Machine-made Sand, quartz sand, glass or pottery and fragment, rubble etc. or the mixture of different materials.Wherein Machine-made Sand be by building stones by Mechanical Crushing, screening is made, particle diameter is less than the rock particles of 4.75mm, building stones can be cobble, ore etc.
In foregoing invention content, described gelling material can be a kind of material in silicate cement, aluminate cement, aluminosulfate cement, flyash, slag powders, lime or gypsum etc. or the mixture of different materials.
In foregoing invention content, fluid additive can be liquid water reducer, liquid hardening accelerator, liquid retardant or liquid accelerator, liquid air entrapment agent, liquid preventing agent, liquid rust inhibitor, liquid air entraining agent, liquid swelling agent, liquid anti-freeze, liquid colourant, liquid pumping agent, liquid water-retaining admixture, liquid defoamer, a kind of material in liquid slump retaining agent or liquid adhesive etc. or the mixture of different materials, be preferably liquid water reducer, liquid water-retaining admixture, liquid defoamer, a kind of material or different materials in liquid slump retaining agent or liquid adhesive etc.
Preferably, described fluid additive contains efficient liquid water reducer.
Preferably, described fluid additive contains liquid polycarboxylate water-reducer.
Preferably, the mixture that described fluid additive contains one or more materials in liquid polycarboxylate water-reducer, liquid defoamer, liquid slump retaining agent or liquid adhesive etc.
In foregoing invention content, described Redispersible Polymeric Emulsion Powder can be one or more the mixture in vinyl acetate homopolymer or multipolymer redispersion latex powder, vinyl laurate multipolymer redispersion latex powder, vinylformic acid or Voncoat R 3310 or multipolymer redispersable latex powder, silicon the third redispersion latex powder, phenylethylene/butadiene copolymerization rubber powder etc.
In foregoing invention content, described strength cement-based grouting material component can also comprise solid additive, as a kind of material in solid water reducer, solid hardening accelerator, solid retardant or solid setting accelerator, solid air entrapment agent, solid preventing agent, solid rust inhibitor, solid air entraining agent, expansion of solids agent, solid frostproofer, solid tinting material, solid pumping agent, solid water-retaining admixture, solid defoamer, solid slump retaining agent or solid adhesive etc. or the mixture of different materials.
In foregoing invention content, the drying method in step 2 is a kind of method in dryness in the sun or vacuum-drying etc. or the combination of several different methods.
The strength cement-based grouting material that the present invention also provides a kind of above-mentioned any means to produce.
The strength cement-based grouting material of producing according to the production method of strength cement-based grouting material provided by the invention, component preferably includes aggregate, gelling material and additive, and its weight ratio is as follows:
Aggregate 55-200 weight part;
Gelling material 40-90 weight part;
Redisperable polymer powder 0.1-5 weight part;
Fluid additive 0.05-20 weight part.
Preferably, described strength cement-based grouting material component can also comprise solid additive, as a kind of material in solid water reducer, solid hardening accelerator, solid retardant or solid setting accelerator, solid air entrapment agent, solid preventing agent, solid rust inhibitor, solid air entraining agent, expansion of solids agent, solid frostproofer, solid tinting material, solid pumping agent, solid water-retaining admixture, solid defoamer, solid slump retaining agent or solid adhesive etc. or the mixture of different materials.
The production method of strength cement-based grouting material provided by the invention is utilized aggregate and/or the larger surface-area of gelling material itself, adsorptive liquid additive, be convenient to so at a lower temperature fluid additive is dried, owing to greatly having increased surface-area, the evaporation energy consumption of moisture content is reduced greatly, greatly reduce drying temperature simultaneously, this drying method, can make the fluid additive that is not easy to dehydrate, particularly as polycarboxylate water-reducer dry becomes easily, thereby retain to greatest extent the performance of additive itself.In this way liquid polycarboxylate water-reducer is carried out to pretreated aggregate or gelling material, then be incorporated in other material and mix according to the regulation ratio of strength cement-based grouting material, make the strength cement-based grouting material product of excellent property.The method is not only applicable to process the liquid polycarboxylate water-reducer product using in strength cement-based grouting material, is also applicable to all fluid additive products that add in strength cement-based grouting material product.
Embodiment
Below in conjunction with specific embodiment, the production method of a kind of strength cement-based grouting material of the present invention is described in detail and is described, better to understand the present invention, but should be understood that, following embodiment does not limit the scope of the invention.
embodiment 1
Use bipyramid convolution vacuum-drying machine equipment, drop into quartz sand 1000Kg, the polycarboxylate water-reducer 20Kg of 40% solid content, utilizes bipyramid convolution Vacuumdrier to heat up and vacuumize and is dried, obtain the pre-treatment quartz sand containing polycarboxylate water-reducer, be called for short pre-treatment quartz sand.Produce strength cement-based grouting material product according to predetermined proportion; Throw dry quartz sand 540Kg, pre-treatment quartz sand 60Kg, silicate cement 400Kg, redisperable polymer powder 10Kg, yellow starch gum 1Kg, packaging stirs.
embodiment 2
Use axle horizontal type stirrer, drop into quartz sand 1000Kg, the polycarboxylate water-reducer 20Kg of 40% solid content, fully stir after 5 minutes and take the dish out of the pot, quartz sand is paved on plastic film, carry out in the sun airing, until quartz sand surface becomes dry, obtain the pre-treatment quartz sand containing polycarboxylate water-reducer, be called for short pre-treatment quartz sand.Produce strength cement-based grouting material product according to predetermined proportion; Throw dry quartz sand 540Kg, pre-treatment quartz sand 60Kg, silicate cement 400Kg, redisperable polymer powder 10Kg, yellow starch gum 1Kg, packaging stirs.
embodiment 3
Use axle horizontal type stirrer, drop into quartz sand 1000Kg, the polycarboxylate water-reducer 20Kg of 40% solid content, fully stir after 5 minutes and take the dish out of the pot, quartz sand is paved on plastic film, carry out in the sun airing, until quartz sand surface becomes dry, obtain the pre-treatment quartz sand containing polycarboxylate water-reducer, be called for short pre-treatment quartz sand.Produce strength cement-based grouting material product according to predetermined proportion; Throw dry quartz sand 540Kg, pre-treatment quartz sand 60Kg, silicate cement 350Kg, redisperable polymer powder 10Kg, yellow starch gum 1.2Kg, packaging stirs.
embodiment 4
Use bipyramid convolution vacuum-drying machine equipment, drop into quartz sand 1000Kg, the polycarboxylate water-reducer 20Kg of 40% solid content, utilizes bipyramid convolution Vacuumdrier to heat up and vacuumize and is dried, obtain the pre-treatment quartz sand containing polycarboxylate water-reducer, be called for short pre-treatment quartz sand.Produce strength cement-based grouting material product according to predetermined proportion; Throw dry quartz sand 500Kg, pre-treatment quartz sand 60Kg, silicate cement 400Kg, redisperable polymer powder 10Kg, yellow starch gum 1Kg, packaging stirs.
embodiment 5
Use bipyramid convolution vacuum-drying machine equipment, drop into quartz sand 1000Kg, the polycarboxylate water-reducer 20Kg of 40% solid content, utilizes bipyramid convolution Vacuumdrier to heat up and vacuumize and is dried, obtain the pre-treatment quartz sand containing polycarboxylate water-reducer, be called for short pre-treatment quartz sand.Produce strength cement-based grouting material product according to predetermined proportion; Throw dry quartz sand 540Kg, pre-treatment quartz sand 60Kg, silicate cement 360Kg, redisperable polymer powder 10Kg, yellow starch gum 1Kg, packaging stirs.
Above specific embodiments of the invention be have been described in detail, but it is just as example, the present invention is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that the present invention is carried out and alternative also all among category of the present invention.Therefore, equalization conversion and the amendment done without departing from the spirit and scope of the invention, all should contain within the scope of the invention.
Claims (9)
1. a production method for strength cement-based grouting material, is characterized in that, comprises the following steps:
Step 1, mixes aggregate and/or gelling material with fluid additive, wherein the weight ratio 90-110:0.1-30 of aggregate and/or gelling material and fluid additive in mixture;
Step 2, by the mixture drying treatment of step 1 gained, and is mixed and made into strength cement-based grouting material with redisperable polymer powder;
Wherein, described fluid additive contains a kind of material or the different materials in liquid water reducer, liquid water-retaining admixture, liquid defoamer, liquid slump retaining agent or liquid adhesive.
2. production method according to claim 1, it is characterized in that, step 2 is: by after the mixture drying treatment of step 1 gained, be mixed and made into strength cement-based grouting material with redisperable polymer powder, the not aggregate of absorption additive and/or gelling material and/or strength cement-based grouting material solid additive.
3. production method according to claim 1, it is characterized in that, described Redispersible Polymeric Emulsion Powder is selected from one or more the mixture in vinyl acetate homopolymer or multipolymer redispersion latex powder, vinyl laurate multipolymer redispersion latex powder, vinylformic acid or Voncoat R 3310 or multipolymer redispersable latex powder, silicon the third redispersion latex powder, phenylethylene/butadiene copolymerization rubber powder.
4. according to the production method described in any one in claim 1～3, it is characterized in that, raw materials used aggregate, gelling material and the additive of comprising in described production method, its weight ratio is as follows:
5. production method according to claim 1, is characterized in that, aggregate described in step 1 and/or gelling material smooth surface, there is no pore.
6. production method according to claim 1, is characterized in that, aggregate described in step 1 is a kind of material in the particle of flyash, slag powders, yellow sand, machine-made sand, quartz sand, glass or pottery and fragment, rubble or the mixture of different materials.
7. production method according to claim 1, is characterized in that, gelling material described in step 1 is a kind of material in silicate cement, aluminate cement, aluminosulfate cement, flyash, slag powders, lime or gypsum or the mixture of different materials.
8. production method according to claim 1, is characterized in that, the drying method in step 2 is the combination of one or both methods in dryness in the sun or vacuum-drying.
9. the strength cement-based grouting material that method is produced as claimed in claim 1.
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| CN201210458156.5A CN102936115B (en) | 2012-11-15 | 2012-11-15 | Production method of cement-based grouting material |
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| CN201210458156.5A CN102936115B (en) | 2012-11-15 | 2012-11-15 | Production method of cement-based grouting material |
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| CN102936115B true CN102936115B (en) | 2014-10-08 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104973834A (en) * | 2015-06-29 | 2015-10-14 | 湖州华仑助剂科技有限公司 | Mixed concrete |
| CN107313646B (en) * | 2017-07-26 | 2019-05-24 | 国网山东省电力公司临沂供电公司 | A kind of impervious frost-resistant concrete electric pole |
| CN108929079B (en) * | 2018-08-01 | 2020-12-15 | 浙江省通用砂浆研究院 | Anti-seismic and anti-cracking sleeve grouting material for prefabricated building and preparation method thereof |
| CA3115734A1 (en) * | 2019-01-08 | 2020-07-16 | Sika Technology Ag | Cementitious compositions with accelerated curing at low temperatures |
| CN109734393A (en) * | 2019-03-27 | 2019-05-10 | 山西佳维新材料股份有限公司 | A kind of early strength micro expansion strength cement-based grouting material |
| CN110294620B (en) * | 2019-04-29 | 2022-08-16 | 广东威恒输变电工程有限公司 | Low-thermal-resistance high-thermal-conductivity power cable fireproof gel material and preparation method thereof |
| CN111848067B (en) * | 2020-07-30 | 2022-02-01 | 石家庄铁道大学 | Grouting material for large bridge support and preparation method thereof |
| CN112960958B (en) * | 2021-04-20 | 2022-06-24 | 北京市建筑工程研究院有限责任公司 | Sealing slurry for winter assembly type construction and preparation method thereof |
| CN113060998B (en) * | 2021-04-20 | 2022-08-30 | 北京市建筑工程研究院有限责任公司 | Sleeve grouting material for connecting reinforcing steel bars in winter construction and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101560084A (en) * | 2009-06-02 | 2009-10-21 | 河北科技大学 | Environmental-friendly waterproof polymer mortar |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101560084A (en) * | 2009-06-02 | 2009-10-21 | 河北科技大学 | Environmental-friendly waterproof polymer mortar |
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