CN102372470B - Preparation method of high-performance mortar - Google Patents
Preparation method of high-performance mortar Download PDFInfo
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- CN102372470B CN102372470B CN 201010259832 CN201010259832A CN102372470B CN 102372470 B CN102372470 B CN 102372470B CN 201010259832 CN201010259832 CN 201010259832 CN 201010259832 A CN201010259832 A CN 201010259832A CN 102372470 B CN102372470 B CN 102372470B
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Abstract
The invention belongs to the technical field of building materials, and specifically relates to a preparation method of a high-performance mortar. The mortar is prepared by mechanical mixing of dry mortar and water, wherein the dry mortar is made from cement, an aggregate, an auxiliary material, a nanometer micro-powder, a plasticizer, a surfactant, a thixotropic agent, a coagulation accelerator, a dispersant, an exciting agent, a thickening agent and an anti-cracking agent. The components of the dry mortar are uniformly mixed by a machinery dry stirring mode and are added with water with uniformly mechanical stirring to prepare the high-performance mortar. The compressive strength of the high-performance mortar after 28 days can reach more than 150-200Mpa. The high-performance mortar prepared by the dry method in a factory has s compact structure, high compressive strength and abrasive resistance, and simultaneously has good corrosion resistance. The preparation technology provided by the invention is simple and is suitable for large-scale industrial production and application.
Description
Technical field:
The invention belongs to building material technical field, be specifically related to a kind of High Performance Mortar, can be used as dry mortar and use.
Background technology:
Along with the development of existingization science and technology, more and more higher to the requirement of the quality of construction work and weather resistance, particularly under some special environment conditions, as oceanographic engineering, Nuclear power plants, wind-power electricity generation, military project, heavy-duty machinery manufacture, varieties in saline-alkali areas and nuclear waste disposal etc.
These special engineerings not only require used mortar early strength high.1 day ultimate compression strength>30Mpa, the later strength development is (28 days ultimate compression strength>100Mpa) rapidly, have the well wear-resisting ability with resisting the hazardous medium erosion simultaneously.
But at present domestic on construction site the similar ultra-high strength mortar of preparation remain in very large difficulty.In patent documentation (ZL 200610027202.0), " a kind of self compacting high strength mortar " reported, its 28 days ultimate compression strength are 70-90MPa.And, in patent documentation (ZL 200710158900.9), introduced " a kind of preparation method of ultra-high strength mortar ", this ultra-high strength mortar intensity can reach 150MPa.
Summary of the invention:
The object of the present invention is to provide a kind of preparation method of High Performance Mortar, this mortar has good cost performance, only need add water stirs and can directly be constructed in building site, easy and simple to handle, more than its ultimate compression strength can reach 150-200MPa, can meet under different special environment conditions the requirement to material property and construction quality.
The High Performance Mortar that the present invention proposes is characterized in that raw material is cement 25-65%, aggregate 28-70%, auxiliary material 1-30%, nano level micro mist 1-20%, fluidizer 0.1-8%, tensio-active agent 0.001-2%, thixotropic agent 0.002-3.5%, dispersion agent 0.05-5%, exciting agent 0.003-2%, hardening accelerator 0.001-2%, thickening agent 0.001-1.5%, crack inhibitor 0.01-5%, water is 6.8-16.6%.Each component total amount meets 100%.
Cement described in the present invention is silicate cement, ordinary Portland cement, ultra-fine silicate cement, one or more in aluminate cement.
Aggregate described in the present invention is one or more in basalt, grouan, diabase, corundum, silicon carbide, quartz sand, and aggregate size is between the 5-10 order, 10-20 order, 20-40 order, 40-70 order, 70-140 order.
Auxiliary material described in the present invention is limestone powder, flyash, one or more in slag powders.
The micro mist of nano level described in the present invention is the calcium carbonate superfine powder powder, ultrafine slag powder, ultra-fine quartz sand powder, one or more in super-fine silicon micro-powder.
Fluidizer described in the present invention is polycarboxylate, as one or more in toxilic acid and methacrylate.
Tensio-active agent described in the present invention is fatty alcohol sulfonate, one or more in ethylene glycol polymer and organosilicon polymer.
Thixotropic agent described in the present invention is for receiving base bentonite, one or more in calcium-base bentonite.
Dispersion agent described in the present invention is naphthalene sulfonic acidformaldehyde condensation product, one or more in sulfonate and sulfonated melamine compound resin.
Exciting agent described in the present invention is caustic soda, slaked lime, one or more in anhydrite and dihydrate gypsum.
Thickening agent described in the present invention is starch ethers, one or more in ether of cellulose.
Crack inhibitor described in the present invention is polypropylene fibre, one or more in steel fiber.
Preparation method of the present invention can be divided into following 2 kinds:
1. the preparation of building-site, accurately take in proportion various starting material, cement, aggregate, auxiliary material, nano level micro mist, fluidizer, tensio-active agent, thixotropic agent, dispersion agent, exciting agent, hardening accelerator, thickening agent and crack inhibitor are added to mixing machine, the dry 3-15 minute that stirs, even to material.Then add water and stir 10-20 minute, evenly can make High Performance Mortar to material.
2. a factory's dry mortar preparation: accurately take in proportion various starting material, cement, aggregate (are processed through dry classification in advance! ), auxiliary material, nano level micro mist, fluidizer, tensio-active agent, thixotropic agent, dispersion agent, exciting agent, hardening accelerator, thickening agent and crack inhibitor add dry mixer, stirs, and can make dry mortar.The dry mortar mixed is carried out to metering packing by certain specification, and this packing should possess waterproof and dampproof function is arranged.Using scene by dry mortar, water mixes in proportion in mixing machine.Can make High Performance Mortar.
The present invention detects department through country, and (ultimate compression strength is with reference to GB/T17671-1999 " strength of cement mortar detection method ", abrasive wear resistance is with reference to JC/T906-2002 " concrete floor cement based high-abrasive material ") detect, its 28 days ultimate compression strength can reach 150-200Mpa, and corresponding fastness to rubbing can reach 350-420%.
The present invention has following advantage:
1. add water and be stirred to material and evenly can directly use in mortar, this mortar good fluidity, compact structure, early strength is high, and the later strength development rapidly, has good abrasive wear resistance and impermeability.
2. raw materials is common commercially available prod, and easily buying, be suitable for extensively promoting the use of.
3. for the mortar of existing market, mortar of the present invention has higher ultimate compression strength, and preparation technology is simple simultaneously, is easy to construct at building-site.
Embodiment:
Below in conjunction with embodiment, technical scheme of the present invention is further described, all mix and blends all adopt strong stirring, the detection of ultimate compression strength is with reference to GB/T17671-1999 " strength of cement mortar detection method ", the detection of abrasive wear resistance is with reference to JC/T906-2002 " concrete floor cement based high-abrasive material ", and corresponding curing age is 28 days.
Embodiment 1: mortar raw material and each component raw material per-cent are: silicate cement 525
#26.3%, basalt 20-40 order 10.2%, quartz sand 40-70 order 23.7%, quartz sand 70-140 order 13.8%, flyash 1.26%, calcium carbonate superfine powder powder 1.7%, ultrafine slag powder 2, 7%, super-fine silicon micro-powder 5.8%, toxilic acid and acrylate copolymer 0.25%, methacrylate 1, 22%, fatty alcohol sulfonate 0.003%, ethylene glycol polymer 0.16%, receive base bentonite 0.1%, trolamine 0.05%, naphthalene sulfonic acidformaldehyde condensation product 0.05%, sulfonate 0.05%, sulfonated melamine compound resin 0.24%, caustic soda 0.01%, anhydrite 0.042%, ether of cellulose 0.015%, polypropylene fibre 0.25%, water 12.1%.
Adopt machine,massing to stir mortar, churning time is 15 minutes, the mortar be stirred is poured in die trial, by the requirement of GB/T17671-1999 " strength of cement mortar detection method " and JC/T906-2002 " concrete floor cement based high-abrasive material ", vibrated moulding maintenance to the length of time.
After tested, 28 days ultimate compression strength of this mortar are 153MPa, fastness to rubbing 364%.
Embodiment 2: mortar raw material and each component raw material per-cent are: silicate cement 525
#32.6%, silicon carbide 20-40 order 8.7%, silicon carbide 40-70 order 9.3%, silicon carbide 70-140 order 4.4%, quartz sand 40-70 order 14.3%, quartz sand 70-140 order 5.2%, calcium carbonate superfine powder powder 1.52%, ultrafine slag powder 2.4%, super-fine silicon micro-powder 7.4%, toxilic acid and acrylate copolymer 0.7%, methacrylate 0.9%, ethylene glycol polymer 0.2%, organosilicon polymer 0.002%, calcium-base bentonite 0.1%, nitrite complex accelerator 0.03%, naphthalene sulfonic acidformaldehyde condensation product 0.28%, sulfonate 0.06%, slaked lime 0.02%, anhydrite 0.028%, ether of cellulose 0.01%, polypropylene fibre 0.15%, steel fiber 0.1%, water 11.6%.
Adopt machine,massing to stir mortar, churning time is 15 minutes, the mortar be stirred is poured in die trial, by the requirement of GB/T17671-1999 " strength of cement mortar detection method " and JC/T906-2002 " concrete floor cement based high-abrasive material ", vibrated moulding maintenance to the length of time.
After tested, 28 days ultimate compression strength of this mortar are 169MPa, fastness to rubbing 386%.
Embodiment 3: mortar raw material and each component raw material per-cent are: silicate cement 525
#35.8%, corundum 20-40 order 9.8%, corundum 40-70 order 8.1%, corundum 70-140 order 3.8%, quartz sand 40-70 order 11.8%, quartz sand 70-140 order 6.2%, calcium carbonate superfine powder powder 1.47%, ultra-fine quartz sand powder 1.8%, super-fine silicon micro-powder 7.7%, toxilic acid and acrylate copolymer 1.2%, methacrylate 0.6%, fatty alcohol sulfonate 0.001%, ethylene glycol polymer 0.2%, receive base bentonite 0.05%, trolamine 0.02%, nitrite complex accelerator 0.01%, naphthalene sulfonic acidformaldehyde condensation product 0.36%, sulfonated melamine compound resin 0.1%, slaked lime 0.01%, anhydrite 0.019%, ether of cellulose 0.01%, polypropylene fibre 0.15%, steel fiber 0.1%, water 10.7%.
Adopt machine,massing to stir mortar, churning time is 15 minutes, the mortar be stirred is poured in die trial, by the requirement of GB/T17671-1999 " strength of cement mortar detection method " and JC/T906-2002 " concrete floor cement based high-abrasive material ", vibrated moulding maintenance to the length of time.
After tested, 28 days ultimate compression strength of this mortar are 183MPa, fastness to rubbing 402%.
Embodiment 4: mortar raw material and each component raw material per-cent are: silicate cement 525
#39.4%, silicon carbide 20-40 order 8.8%, silicon carbide 40-70 order 19.2%, silicon carbide 70-140 order 8.4%, ultra-fine quartz sand powder 1.29%, ultrafine slag powder 1.21%, super-fine silicon micro-powder 8.7%, toxilic acid and acrylate copolymer 0.3%, methacrylate 2.1%, fatty alcohol sulfonate 0.001%, ethylene glycol polymer 0.23%, calcium-base bentonite 0.05%, trolamine 0.02%, nitrite complex accelerator 0.01%, naphthalene sulfonic acidformaldehyde condensation product 0.15%, sulfonated melamine compound resin 0.4%, slaked lime 0.01%, anhydrite 0.019%, ether of cellulose 0.01%, steel fiber 0.3%, water 9.4%.
Adopt machine,massing to stir mortar, churning time is 15 minutes, the mortar be stirred is poured in die trial, by the requirement of GB/T17671-1999 " strength of cement mortar detection method " and JC/T906-2002 " concrete floor cement based high-abrasive material ", vibrated moulding maintenance to the length of time.
After tested, 28 days ultimate compression strength of this mortar are 197MPa, fastness to rubbing 417%.
Embodiment 5, and mortar raw material and each component raw material per-cent are: silicate cement 525
#44.6%, corundum 20-40 order 8.6%, corundum 40-70 order 16.1%, corundum 70-140 order 7.7%, calcium carbonate superfine powder powder 0.423%, ultrafine slag powder 0.5%, super-fine silicon micro-powder 9.1%, toxilic acid and acrylate copolymer 0.5%, methacrylate 2.51%, fatty alcohol sulfonate 0.001%, ethylene glycol polymer 0.2%, organosilicon polymer 0.01%, calcium-base bentonite 0.02%, trolamine 0.01%, nitrite complex accelerator 0.01%, naphthalene sulfonic acidformaldehyde condensation product 0.13%, sulfonate 0.11%, sulfonated melamine compound resin 0.3%, caustic soda 0.005%, dihydrate gypsum 0.01%, ether of cellulose 0.01%, polypropylene fibre 0.15%, steel fiber 0.3%, water 8.8%.
Adopt machine,massing to stir mortar, churning time is 15 minutes, the mortar be stirred is poured in die trial, by the requirement of GB/T17671-1999 " strength of cement mortar detection method " and JC/T906-2002 " concrete floor cement based high-abrasive material ", vibrated moulding maintenance to the length of time.
After tested, 28 days ultimate compression strength of this mortar are 208MPa, fastness to rubbing 426%.
Claims (13)
1. a High Performance Mortar, it is characterized in that high-performance dry mortar and water form through mechanically mixing, wherein dry mortar is comprised of cement, aggregate, auxiliary material, nano level micro mist, fluidizer, tensio-active agent, thixotropic agent, dispersion agent, exciting agent, hardening accelerator, thickening agent crack inhibitor, and each weight percent formed is:
Each component total amount meets 100%.
2. High Performance Mortar according to claim 1, is characterized in that described cement is silicate cement, one or more in aluminate cement.
3. High Performance Mortar according to claim 1, is characterized in that described aggregate is one or more in basalt, grouan, corundum, silicon carbide, quartz sand.
4. High Performance Mortar according to claim 1, is characterized in that described auxiliary material is limestone powder, flyash, one or more in slag powders.
5. High Performance Mortar according to claim 1, is characterized in that described nano level micro mist is the calcium carbonate superfine powder powder, ultrafine slag powder, one or more in super-fine silicon micro-powder.
6. High Performance Mortar according to claim 1, is characterized in that described fluidizer is polycarboxylate, one or more in toxilic acid and methacrylate.
7. High Performance Mortar according to claim 1, is characterized in that described tensio-active agent is one or more in fatty alcohol sulfonate, ethylene glycol polymer and organosilicon polymer.
8. High Performance Mortar according to claim 1, is characterized in that described thixotropic agent is for receiving base bentonite, one or more in calcium-base bentonite.
9. High Performance Mortar according to claim 1, is characterized in that described hardening accelerator is trolamine, one or more in the nitrite complex accelerator.
10. High Performance Mortar according to claim 1, is characterized in that described dispersion agent is naphthalene sulfonic acidformaldehyde condensation product, sulfonate, one or more in sulfonated melamine compound resin.
11. High Performance Mortar according to claim 1, is characterized in that described exciting agent is caustic soda, slaked lime, one or more in gypsum.
12. High Performance Mortar according to claim 1, is characterized in that described thickening agent is starch ethers, one or more in ether of cellulose.
13. High Performance Mortar according to claim 1, is characterized in that described crack inhibitor is polypropylene fibre, one or more in steel fiber.
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| CN 201010259832 CN102372470B (en) | 2010-08-23 | 2010-08-23 | Preparation method of high-performance mortar |
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| CN 201010259832 CN102372470B (en) | 2010-08-23 | 2010-08-23 | Preparation method of high-performance mortar |
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| CN102372470B true CN102372470B (en) | 2013-05-08 |
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| CN102603224A (en) * | 2012-03-23 | 2012-07-25 | 辽宁岩砂晶建材有限公司 | Super-concentrated mortar plasticizer |
| CN103359984B (en) * | 2012-03-29 | 2015-06-24 | 天津港保税区航保商品砼供应有限公司 | Preparation technology of light guide mortar |
| CN103359985B (en) * | 2012-03-29 | 2015-06-24 | 天津港保税区航保商品砼供应有限公司 | Preparation technology of light guide concrete |
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| CN106630724A (en) * | 2016-10-21 | 2017-05-10 | 中南大学 | Compound admixture for anti-crack limestone powder and preparation method of compound admixture |
| CN106673580A (en) * | 2016-12-30 | 2017-05-17 | 北京宝辰联合科技股份有限公司 | Cement-based self-leveling mortar |
| CN106747124A (en) * | 2017-02-07 | 2017-05-31 | 福州大学 | A kind of very-high performance mortar for building puzzle joint |
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| CN108439848A (en) * | 2018-05-02 | 2018-08-24 | 合肥市晨雷思建筑材料科技有限公司 | A kind of high performance grout additive and preparation method thereof |
| CN110359627A (en) * | 2019-07-17 | 2019-10-22 | 山东和悦生态新材料科技有限责任公司 | Granite powder assembled steam-pressing aero-concrete Self-insulation wall plate |
| CN110436848A (en) * | 2019-08-12 | 2019-11-12 | 河南城建学院 | A kind of cement composition, foamed cement slurry, foam concrete pour material and preparation method thereof |
| CN111848033B (en) * | 2020-07-15 | 2022-04-19 | 中国水利水电第五工程局有限公司 | Self-compacting ultrahigh-strength mortar and preparation method thereof |
| CN113968698B (en) * | 2020-07-22 | 2023-09-08 | 江苏苏博特新材料股份有限公司 | Cement-based grouting material for offshore wind power jacket and application thereof |
| CN114685120A (en) * | 2022-04-08 | 2022-07-01 | 津士佳(天津)新材料有限公司 | Preparation method of fiber mortar |
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