CN102936115A - Production method of cement-based grouting material - Google Patents
Production method of cement-based grouting material Download PDFInfo
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- CN102936115A CN102936115A CN2012104581565A CN201210458156A CN102936115A CN 102936115 A CN102936115 A CN 102936115A CN 2012104581565 A CN2012104581565 A CN 2012104581565A CN 201210458156 A CN201210458156 A CN 201210458156A CN 102936115 A CN102936115 A CN 102936115A
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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 as base material take cement, the natural high strength aggregate of an amount of adding, the compositions such as concrete admixture be dry mixed material, has high fluidity behind the blunge, 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 grouting of the small gap such as track foundation bonding, subway, the tunnel, underground works backhander method construction joint build-in, foot bolt fastening, the cable trench Fast Filling, beams of concrete, post, plate, the irregular dead angle that the reinforcing and repairing grouting of wall, other normal concretes are difficult to pour into a mould, corner and the reparation of concrete porosity supplementary irrigation etc.
In the modern concrete technology, in the additive that need to use maximum a kind of be high-performance water reducing agent, particularly used in a large number since the polycarboxylate water-reducer in recent years, such as self-leveling concrete, ultra high strength concrete, artificial marble etc., can both realize easily that high performance concrete is in a lot of fields even can surpass the performance of steel.The strength cement-based grouting material technology in recent years development rapidly, but traditional technology all is to use powdery water reducer product, such as the naphthalene system of powdery, sodium lignosulfonate etc.Because the moisture content of the necessary strict hierarchy of control is very restricted the use of polycarboxylate water-reducer in the strength cement-based grouting material production process.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 mainly is to make by spray-dired method, this method need to be used higher spray tower, and with polycarboxylate water-reducer by atomisation under the high pressure, sometimes need to add nucleator, vaporific polycarboxylate water-reducer sprays into from cat head, and the appropriate location, bottom is blown into the high temperature drying air about 200 ℃, with the water evaporates of polycarboxylate water-reducer, obtain powdery polycarboxylic acid water reducer product in tens seconds.This production process energy consumption is large, and cost is high, and polycarboxylate water-reducer generally can descend about 10～20% through performance after the pyroprocessing.Because temperature is higher, the powdery polycarboxylic acid water reducer is clamminess again easily, if control is improper in liquid product quality fluctuation or the drying process, the tower accident occurs very easily to burn.
The technology of polycarboxylate water-reducer is also in constantly improving and improving, but because powdery polycarboxylic acid water reducer difficulty of processing is large, and energy consumption is high, cost is high, so that it is difficult to use in strength cement-based grouting material.If can not address this problem, will so that 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 keep to greatest extent the performance of additive itself.
A kind of production method of strength cement-based grouting material is characterized in that, may further comprise the steps:
Step 1 is mixed 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 the mixture;
Step 2 with 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: after the mixture drying treatment with 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 the step 1 and/or gelling material particle surface be smooth, do not have pore, can rapid drying behind the adsorptive liquid additive, and wherein, described pore aperture is less than 0.1mm.
In the 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, the rubble etc. or the mixture of different materials.Wherein Machine-made Sand be with 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 the foregoing invention content, described gelling material can be a kind of material in silicate cement, aluminate cement, aluminosulfate cement, flyash, slag powders, lime or the gypsum etc. or the mixture of different materials.
In the foregoing invention content, fluid additive can be the liquid water reducer, liquid hardening accelerator, liquid retardant or liquid accelerator, the liquid air entrapment agent, the liquid preventing agent, the liquid rust inhibitor, the liquid airentraining agent, liquid swelling agent, liquid anti-freeze, liquid colourant, the liquid pumping agent, the liquid water-retaining admixture, the liquid defoamer, a kind of material in liquid slump retaining agent or the liquid adhesive etc. or the mixture of different materials are preferably the liquid water reducer, the liquid water-retaining admixture, the liquid defoamer, a kind of material or different materials in liquid slump retaining agent or the liquid adhesive etc.
Preferably, described fluid additive contains the efficient liquid water reducer.
Preferably, described fluid additive contains the liquid polycarboxylate water-reducer.
Preferably, described fluid additive contains the mixture of one or more materials in liquid polycarboxylate water-reducer, liquid defoamer, liquid slump retaining agent or the liquid adhesive etc.
In the 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 the foregoing invention content, described strength cement-based grouting material component can also comprise solid additive, such 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 airentraining agent, expansion of solids agent, solid frostproofer, solid tinting material, solid pumping agent, solid water-retaining admixture, solid defoamer, solid slump retaining agent or the solid adhesive etc. or the mixture of different materials.
In the foregoing invention content, the drying method in the step 2 is a kind of method in dryness in the sun or the 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.
According to the strength cement-based grouting material that the production method of strength cement-based grouting material provided by the invention is produced, 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, such 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 airentraining agent, expansion of solids agent, solid frostproofer, solid tinting material, solid pumping agent, solid water-retaining admixture, solid defoamer, solid slump retaining agent or the 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, the adsorptive liquid additive, be convenient to so at a lower temperature fluid additive be carried out drying, owing to greatly increased surface-area, the evaporation energy consumption of moisture content is reduced greatly, greatly reduce simultaneously drying temperature, this drying method, can make the fluid additive that is not easy to dehydrate, particularly the drying such as polycarboxylate water-reducer becomes easily, thereby keeps to greatest extent the performance of additive itself.In this way the liquid polycarboxylate water-reducer is carried out pretreated aggregate or gelling material, be incorporated in other material according to the regulation ratio of strength cement-based grouting material again and mix, 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 that uses in the strength cement-based grouting material, also is applicable to all and adds fluid additive product in the strength cement-based grouting material product to.
Embodiment
Be described in detail and describe below in conjunction with the production method of specific embodiment to a kind of strength cement-based grouting material of the present invention, understand the present invention with better, 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 carries out drying, obtain containing the pre-treatment quartz sand of polycarboxylate water-reducer, be called for short pre-treatment quartz sand.Produce the 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, the packing that stirs gets final product.
Embodiment 2
Use the 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 till the quartz sand surface exsiccation, obtain containing the pre-treatment quartz sand of polycarboxylate water-reducer, be called for short pre-treatment quartz sand.Produce the 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, the packing that stirs gets final product.
Embodiment 3
Use the 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 till the quartz sand surface exsiccation, obtain containing the pre-treatment quartz sand of polycarboxylate water-reducer, be called for short pre-treatment quartz sand.Produce the 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, the packing that stirs gets final product.
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 carries out drying, obtain containing the pre-treatment quartz sand of polycarboxylate water-reducer, be called for short pre-treatment quartz sand.Produce the 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, the packing that stirs gets final product.
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 carries out drying, obtain containing the pre-treatment quartz sand of polycarboxylate water-reducer, be called for short pre-treatment quartz sand.Produce the 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, the packing that stirs gets final product.
More than specific embodiments of the invention are 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 substituting also all among category of the present invention.Therefore, not breaking away from impartial conversion and the modification of doing under the spirit and scope of the present invention, all should contain within the scope of the invention.
Claims (10)
1. the production method of a strength cement-based grouting material is characterized in that, may further comprise the steps:
Step 1 is mixed 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 the mixture;
Step 2 with the mixture drying treatment of step 1 gained, and is mixed and made into strength cement-based grouting material with redisperable polymer powder.
2. production method according to claim 1, it is characterized in that, step 2 is: after the mixture drying treatment with step 1 gained, with redisperable polymer powder, 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.
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, the phenylethylene/butadiene copolymerization rubber powder.
4. the described production method of any one is characterized in that according to claim 1 ~ 3, raw materials used aggregate, gelling material and the additive of comprising in the described production method, 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.
5. production method according to claim 1 is characterized in that, aggregate described in the step 1 and/or gelling material smooth surface, does not have pore.
6. production method according to claim 1 is characterized in that, fluid additive described in the step 1 contains a kind of material or the different materials in liquid water reducer, liquid water-retaining admixture, liquid defoamer, liquid slump retaining agent or the liquid adhesive.
7. production method according to claim 1 is characterized in that, aggregate described in the 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, the rubble or the mixture of different materials.
8. production method according to claim 1 is characterized in that, gelling material described in the step 1 is a kind of material in silicate cement, aluminate cement, aluminosulfate cement, flyash, slag powders, lime or the gypsum or the mixture of different materials.
9. production method according to claim 1 is characterized in that, the drying method in the step 2 is the combination of one or both methods in dryness in the sun or the vacuum-drying.
10. strength cement-based grouting material of producing of method 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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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104973834A (en) * | 2015-06-29 | 2015-10-14 | 湖州华仑助剂科技有限公司 | Mixed concrete |
| CN107313646A (en) * | 2017-07-26 | 2017-11-03 | 国网山东省电力公司临沂供电公司 | A kind of impervious frost-resistant concrete electric pole |
| CN108929079A (en) * | 2018-08-01 | 2018-12-04 | 浙江省通用砂浆研究院 | A kind of assembled architecture seismic crack sleeve grouting material and preparation method thereof |
| 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 |
| CN110294620A (en) * | 2019-04-29 | 2019-10-01 | 广东威恒输变电工程有限公司 | A kind of low thermal resistance high thermal conductivity type power cable fireproof gel material and preparation method thereof |
| CN111848067A (en) * | 2020-07-30 | 2020-10-30 | 石家庄铁道大学 | Grouting material for large bridge support and preparation method thereof |
| CN112960958A (en) * | 2021-04-20 | 2021-06-15 | 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 |
| CN113039169A (en) * | 2019-01-08 | 2021-06-25 | Sika技术股份公司 | Cement-based compositions with accelerated curing at low temperatures |
| CN113060998A (en) * | 2021-04-20 | 2021-07-02 | 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)
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| CN101560084A (en) * | 2009-06-02 | 2009-10-21 | 河北科技大学 | Environmental-friendly waterproof polymer mortar |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101560084A (en) * | 2009-06-02 | 2009-10-21 | 河北科技大学 | Environmental-friendly waterproof polymer mortar |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104973834A (en) * | 2015-06-29 | 2015-10-14 | 湖州华仑助剂科技有限公司 | Mixed concrete |
| CN107313646A (en) * | 2017-07-26 | 2017-11-03 | 国网山东省电力公司临沂供电公司 | A kind of impervious frost-resistant concrete electric pole |
| 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 |
| CN108929079A (en) * | 2018-08-01 | 2018-12-04 | 浙江省通用砂浆研究院 | A kind of assembled architecture seismic crack sleeve grouting material and preparation method thereof |
| CN113039169A (en) * | 2019-01-08 | 2021-06-25 | Sika技术股份公司 | Cement-based 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 |
| CN110294620A (en) * | 2019-04-29 | 2019-10-01 | 广东威恒输变电工程有限公司 | A kind of low thermal resistance high thermal conductivity type power cable fireproof gel material and preparation method thereof |
| CN111848067A (en) * | 2020-07-30 | 2020-10-30 | 石家庄铁道大学 | Grouting material for large bridge support 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 |
| CN112960958A (en) * | 2021-04-20 | 2021-06-15 | 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 |
| CN113060998A (en) * | 2021-04-20 | 2021-07-02 | 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 |
| 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 |
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| CN102936115B (en) | 2014-10-08 |
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