CN102219550A - Stone paper for maintaining cement mortar and preparation method thereof - Google Patents
Stone paper for maintaining cement mortar and preparation method thereof Download PDFInfo
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- CN102219550A CN102219550A CN 201110077964 CN201110077964A CN102219550A CN 102219550 A CN102219550 A CN 102219550A CN 201110077964 CN201110077964 CN 201110077964 CN 201110077964 A CN201110077964 A CN 201110077964A CN 102219550 A CN102219550 A CN 102219550A
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Abstract
The invention provides stone paper for maintaining cement mortar and a preparation method thereof. The stone paper for maintaining the cement mortar comprises the following components in part by weight: 45 to 65 parts of heavy calcium carbonate, 10 to 30 parts of active silica micropowder, 0.1 to 0.3 part of triphenyl phosphate, 3 to 5 parts of silane coupling agent, 20 to 30 parts of linear low-density polyethylene and 5 to 10 parts of hot melt adhesive. In the stone paper, the surface of concrete is directly covered by a macromolecular polymer serving as a basic material after pouring concrete in an acid mode; and the stone paper and the surface of the mortar are subjected to crosslinking adsorption to form one layer of protective film, so that rapid evaporation of water on the surface of the concrete is controlled and plastic shrinking cracking is prevented.
Description
Technical field
The present invention relates to a kind of material of construction.
Background technology
China's economic is in the high speed development stage, and the motorway of China, large-scale construction project, the especially construction of big city subway engineering are also flourish, and be at the forefront in the world at present.In the process of heavy construction, also existing some has technical problem to be solved, as the cracking problem of concrete depositing rear surface, and the cracking problem and the ability of anti-deformation of road bed after the motorway concrete depositing; Required freeze-thaw-problem of severe cold area construction process or the like.Solve a difficult technical problem and must rely on scientific and technological advances, sophistication comprises the application of novel material.
Hot weather can cause the concrete plastic shrinkage cracking usually; if surrounding environment causes concrete surface moisture rapid evaporation; plastic shrinkage cracking also can take place at any time; in case the concrete surface moisture evaporated will produce cracking greater than bleeding speed; because dry shrinkage and tensile stress fast appear in this feasible surface, produce erose crackle.The plastic shrinkage crackle is moulded sometimes and is just occurred on the surface soon after the fresh concrete cast, and produces soon when finishing or after the finishing sometimes.Take preventive measures, regularly water covered with plastic film on the mortar surface as needs, plant plaits etc. can reduce these mainly in crack that horizontal surface occurs, but need expend a large amount of man power and materials, especially also there is certain degree of difficulty in heavy construction in actually operating.
Summary of the invention
The purpose of this invention is to provide a kind of stone paper that is used for the sand-cement slurry maintenance and preparation method thereof, to overcome the above-mentioned defective that prior art exists.
The described stone paper that is used for the sand-cement slurry maintenance comprises the component of following weight part:
Described water-ground limestone calcite in powder, fineness are 1500～2000 orders;
Fine silica powder leading indicator: SiO
2Content 83～96%, median size 0.15～0.335um, specific surface area 15～22m
2/ g, the natural tap density 180～240kg/m of pozzolanic activity index＞86%
3
Described alkane coupling agent is the r-methacryloxypropyl trimethoxy silane;
The trade names of described linear low density polyethylene are LLDPE, and density is 0.92～0.93, melt index MI0.3～0.6, preferred bimodal pattern;
Described hot melt adhesive is an ethene-vinyl acetate copolymerization build, is called for short EVA, 85～105 ℃ of fusing points;
Further, comprise following component:
Described wilkinite fineness is 1200～1500 orders;
Described modified polyethylene wax is polyamide modified polyethylene micropowder wax, and adopting the Clariant company trade mark is the product of 9615A;
The described preparation method who is used for the stone paper of sand-cement slurry maintenance comprises the steps:
With heavy carbon calcium, active silica fume, triphenyl phosphite and silane coupling agent, mixed 30～60 minutes down at 130～150 ℃, add linear low density polyethylene again, hot melt adhesive, stearic acid, the epoxy tetrahydro-2-ethylhexyl phthalate, modified polyethylene wax, wilkinite, amine hydroxybenzene and Span60, mixed 30～60 minutes, send into 170～185 ℃ of plasticizing machine plasticizings then, 175～185 ℃ of forcing machine curtain coatings, do 170～185 ℃ of four rolling presss roll? 0.10 the stone paper of～0.12mm, after the cooling, again through 25 ± 2 ℃, balance is 25～30 minutes under relative humidity 60 ± 2% conditions, can obtain product.
The stone paper of sand-cement slurry maintenance of the present invention is the base material raw material with the high molecular polymer, carry out composite modified to lime carbonate and active silica fume, and add other additives, utilize the macromolecule interfacial principles of chemistry and macromolecule modified characteristics, after special process is handled, adopt mixed with polymers, filler is composite modified, polymkeric substance plastifies with filler, extrude curtain coating, calendering formation technology is made.Directly acid covers concrete surface after concrete depositing; utilize in the principle of wilkinite water-swelling in the stone paper and the stone paper active silica fume under the effect of silane coupling agent; carry out crosslinked absorption with the mortar surface; form layer protecting film; control concrete surface moisture rapid evaporation, the prevention plastic shrinkage cracking.
Embodiment
Among the embodiment, if no special instructions, be weight part.
Embodiment 1
5 parts of 65 parts of water-ground limestones, 10 parts of active silica fumes, 0.1 part of triphenyl phosphite, 3 parts of silane coupling agents, 30 parts of linear low density polyethylenes, hot melt adhesive, 2,0.3 part in two (4-hydroxy phenyl) propane of 2-, 0.5 part of stearic acid, 0.5 part of epoxy tetrahydro-2-ethylhexyl phthalate, 0.2 part of modified polyethylene wax, 0.5 part of wilkinite, 0.3 part of amine hydroxybenzene, 0.5 part of Span60.
The preparation method:
With heavy carbon calcium, active silica fume, triphenyl phosphite, silane coupling agent, mixed 60 minutes down at 130 ℃, add linear low density polyethylene again, hot melt adhesive, stearic acid, the epoxy tetrahydro-2-ethylhexyl phthalate, modification high-density polyethylene wax, wilkinite, amine hydroxybenzene, Span60 continues to mix 30 minutes, send into 170 ℃ of plasticizing machine plasticizings then, 170 ℃ of forcing machine curtain coatings, 170 ℃ of four rolling presss roll into the stone paper about 0.12mm, after the cooling, again through 25 ± 2 ℃, relative humidity 60 ± 2% balances 25 minutes obtain product.
Embodiment 2
10 parts of 55 parts of water-ground limestones, 20 parts of active silica fumes, 0.2 part of triphenyl phosphite, 4 parts of silane coupling agents, 20 parts of linear low density polyethylenes, hot melt adhesive, 2,0.4 part in two (4-hydroxy phenyl) propane of 2-, 1 part of stearic acid, 1 part of epoxy tetrahydro-2-ethylhexyl phthalate, 0.3 part of modified polyethylene wax, 1 part of wilkinite, 0.4 part of amine hydroxybenzene, 0.75 part of Span60.。
The preparation method:
With heavy carbon calcium, active silica fume, triphenyl phosphite, silane coupling agent, 140 ℃ mix down 45 minutes, add linear low density polyethylene, hot melt adhesive, stearic acid, epoxy tetrahydro-2-ethylhexyl phthalate, modified polyethylene wax, wilkinite, amine hydroxybenzene, Span60 again and continue to mix 45 minutes, send into 173 ℃ of plasticizing machine plasticizings then, 175 ℃ of forcing machine curtain coatings, 175 ℃ of four rolling presss roll into the stone paper about 0.12mm, after the cooling, through 25 ± 2 ℃, relative humidity 60 ± 2% balances are the rolling packing after 30 minutes again.
Embodiment 3
8 parts of 45 parts of water-ground limestones, 30 parts of active silica fumes, 0.3 part of triphenyl phosphite, 5 parts of silane coupling agents, 25 parts of linear low density polyethylenes, hot melt adhesive, 2,0.5 part in two (4-hydroxy phenyl) propane of 2-, 1.5 parts of stearic acid, 1.5 parts of epoxy tetrahydro-2-ethylhexyl phthalates, 0.4 part of modified polyethylene wax, 1.5 parts of wilkinites, 0.5 part of amine hydroxybenzene, 1 part of Span60.
The preparation method:
With heavy carbon calcium, active silica fume, triphenyl phosphite, silane coupling agent, 150 ℃ mix down 30 minutes, add linear low density polyethylene, hot melt adhesive, stearic acid, epoxy tetrahydro-2-ethylhexyl phthalate, modified polyethylene wax, wilkinite, amine hydroxybenzene, Span60 again and continue to mix 60 minutes, send into 176 ℃ of plasticizing machine plasticizings then, 179 ℃ of forcing machine curtain coatings, 180 ℃ of four rolling presss roll into the stone paper about 0.11mm, after the cooling, through 25 ± 2 ℃, relative humidity 60 ± 2% balances are the rolling packing after 25 minutes again.
Embodiment 4
10 parts of 60 parts of water-ground limestones, 15 parts of active silica fumes, 0.1 part of triphenyl phosphite, 3 parts of silane coupling agents, 22 parts of linear low density polyethylenes, hot melt adhesive, 2,0.6 part in two (4-hydroxy phenyl) propane of 2-, 0.5 part of stearic acid, 1.5 parts of epoxy tetrahydro-2-ethylhexyl phthalates, 0.5 part of modified polyethylene wax, 1.5 parts of wilkinites, 0.6 part of amine hydroxybenzene, 0.75 part of Span60.。
The preparation method:
With heavy carbon calcium, active silica fume, triphenyl phosphite, silane coupling agent, 135 ℃ mix down 30 minutes, add linear low density polyethylene, hot melt adhesive, stearic acid, epoxy tetrahydro-2-ethylhexyl phthalate, modified polyethylene wax, wilkinite, amine hydroxybenzene, Span60 again and continue to mix 60 minutes, send into 180 ℃ of plasticizing machine plasticizings then, 180 ℃ of forcing machine curtain coatings, 180 ℃ of four rolling presss roll into the stone paper about 0.12mm, after the cooling, through 25 ± 2 ℃, relative humidity 60 ± 2% balances are the rolling packing after 30 minutes again.
Embodiment 5
7 parts of 50 parts of water-ground limestones, 25 parts of active silica fumes, 0.2 part of triphenyl phosphite, 4 parts of silane coupling agents, 28 parts of linear low density polyethylenes, hot melt adhesive, 2,0.5 part in two (4-hydroxy phenyl) propane of 2-, 1 part of stearic acid, 1 part of epoxy tetrahydro-2-ethylhexyl phthalate, 0.6 part of modified polyethylene wax, 1 part of wilkinite, 0.4 part of amine hydroxybenzene, 0.6 part of Span60.
The preparation method:
With heavy carbon calcium, active silica fume, triphenyl phosphite, silane coupling agent, 145 ℃ mix down 45 minutes, add linear low density polyethylene, hot melt adhesive, stearic acid, epoxy tetrahydro-2-ethylhexyl phthalate, modified polyethylene wax, wilkinite, amine hydroxybenzene, Span60 again and continue to mix 45 minutes, send into 185 ℃ of plasticizing machine plasticizings then, 180 ℃ of forcing machine curtain coatings, 185 ℃ of four rolling presss roll into the stone paper about 0.10mm, after the cooling, through 25 ± 2 ℃, relative humidity 60 ± 2% balances are the rolling packing after 25 minutes again.
Embodiment 6
9 parts of 50 parts of water-ground limestones, 25 parts of active silica fumes, 0.3 part of triphenyl phosphite, 5 parts of silane coupling agents, 24 parts of linear low density polyethylenes, hot melt adhesive, 2,0.5 part in two (4-hydroxy phenyl) propane of 2-, 1.5 parts of stearic acid, 1.5 parts of epoxy tetrahydro-2-ethylhexyl phthalates, 0.4 part of modified polyethylene wax, 1.5 parts of wilkinites, 0.4 part of amine hydroxybenzene, 0.9 part of Span60.
The preparation method:
With heavy carbon calcium, active silica fume, triphenyl phosphite, silane coupling agent, 140 ℃ mix down 60 minutes, add linear low density polyethylene, hot melt adhesive, stearic acid, epoxy tetrahydro-2-ethylhexyl phthalate, modified polyethylene wax, wilkinite, amine hydroxybenzene, Span60 again and continue to mix 30 minutes, send into 180 ℃ of plasticizing machine plasticizings then, 182 ℃ of forcing machine curtain coatings, 185 ℃ of four rolling presss roll into the stone paper about 0.10mm, after the cooling, through 25 ± 2 ℃, relative humidity 60 ± 2% balances are the rolling packing after 30 minutes again.
Application Example 7
The country or the industry standard that also do not have at present concrete pouring paper, can only carry out practical measurement to embodiment according to the stationery common testing methods, the detection method that adopts, can be referring to related standards: GBT 13023-2008 corrugation (body paper), QBT3805-1999 polyvinyl chloride wallpaper, JGJ 70-2009 building mortar basic performance tests method the results are shown in Table 1 and table 2.
Table one
Application test: large-scale square deposit concrete is an object, carries out practical application, and the time is mid-April, fine, envrionment temperature is 18～24 ℃: the concrete depositing of large-scale square covered maintenance paper of the present invention immediately at concrete surface after 30 minutes, and contrast 1 is for using the plant plait oversite concrete; Contrast 2 is open-air concrete; By concrete surface is measured:
Table two
Can reach a conclusion from practical application, use the concrete of maintenance stone paper maintenance, only need water once during 48 hours, the rear surface was smooth in 6 months, leakless.And use concrete that plant plait covers during 48 hours, watering four times in water during 48 hours three times, out of door concrete, and slight crack still appearred after 28 days, and use plant plait also to need the labor cleaning scene simultaneously, take time and effort; Out of door also needs to water a water more and still falls flat.Illustrate that from application test grout maintenance stone paper of the present invention produces a desired effect.
Claims (4)
1. be used for the stone paper of sand-cement slurry maintenance, it is characterized in that, comprise the component of following weight part:
2. the stone paper that is used for the sand-cement slurry maintenance according to claim 1 is characterized in that, also comprises the component of following weight part:
3. the stone paper that is used for the sand-cement slurry maintenance according to claim 1 and 2 is characterized in that, described wilkinite fineness is 1500 orders; Described water-ground limestone calcite in powder, fineness are 1500～2000 orders; Described alkane coupling agent is the r-methacryloxypropyl trimethoxy silane; Described hot melt adhesive is an ethene-vinyl acetate copolymerization build.
4. according to claim 2 or the 3 described preparation methods that are used for the stone paper of sand-cement slurry maintenance, it is characterized in that, comprise the steps: heavy carbon calcium, active silica fume, triphenyl phosphite and silane coupling agent, mixed 30～60 minutes down at 130～150 ℃, add linear low density polyethylene again, hot melt adhesive, stearic acid, the epoxy tetrahydro-2-ethylhexyl phthalate, modified polyethylene wax, wilkinite, amine hydroxybenzene and Span60, continue to mix 30～60 minutes, send into 170～185 ℃ of plasticizing machine plasticizings then, 175～185 ℃ of forcing machine curtain coatings, 170～185 ℃ of four stone paper that rolling press rolls into 0.10～0.12mm, after the cooling, again through 25 ± 2 ℃, balance is 25～30 minutes under relative humidity 60 ± 2% conditions, can obtain product.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110077964 CN102219550B (en) | 2011-03-29 | 2011-03-29 | Stone paper for maintaining cement mortar and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110077964 CN102219550B (en) | 2011-03-29 | 2011-03-29 | Stone paper for maintaining cement mortar and preparation method thereof |
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| CN102219550A true CN102219550A (en) | 2011-10-19 |
| CN102219550B CN102219550B (en) | 2013-03-20 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103331922A (en) * | 2013-05-28 | 2013-10-02 | 武汉理工大学 | Preparation method of resin base concrete protection lining film with strong cohesive ability |
| CN103834096A (en) * | 2012-11-22 | 2014-06-04 | 瑞晶应用材料科技股份有限公司 | Stone made environmentally friendly paper material and making method thereof |
| CN103865157A (en) * | 2014-03-31 | 2014-06-18 | 宋旭 | Water-absorbable composite environment-friendly stone paper and preparation method thereof |
| CN109504051A (en) * | 2018-11-30 | 2019-03-22 | 河南建筑材料研究设计院有限责任公司 | It is a kind of for concrete and the pad pasting of Cement Mortar Used in Capital and preparation method thereof |
| CN116621605A (en) * | 2023-03-23 | 2023-08-22 | 安徽皖维花山新材料有限责任公司 | Powder concrete curing agent and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851365A (en) * | 2010-06-29 | 2010-10-06 | 上海东升新材料有限公司 | Stone paper and manufacturing method thereof |
| CN101871182A (en) * | 2010-06-18 | 2010-10-27 | 成都新柯力化工科技有限公司 | Thermoplasticity environmentally-friendly stone paper and preparation method |
-
2011
- 2011-03-29 CN CN 201110077964 patent/CN102219550B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101871182A (en) * | 2010-06-18 | 2010-10-27 | 成都新柯力化工科技有限公司 | Thermoplasticity environmentally-friendly stone paper and preparation method |
| CN101851365A (en) * | 2010-06-29 | 2010-10-06 | 上海东升新材料有限公司 | Stone paper and manufacturing method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103834096A (en) * | 2012-11-22 | 2014-06-04 | 瑞晶应用材料科技股份有限公司 | Stone made environmentally friendly paper material and making method thereof |
| CN103331922A (en) * | 2013-05-28 | 2013-10-02 | 武汉理工大学 | Preparation method of resin base concrete protection lining film with strong cohesive ability |
| CN103331922B (en) * | 2013-05-28 | 2016-03-09 | 武汉理工大学 | A kind of resin-based concrete protective lining form preparation method with strong cementitiousness |
| CN103865157A (en) * | 2014-03-31 | 2014-06-18 | 宋旭 | Water-absorbable composite environment-friendly stone paper and preparation method thereof |
| CN109504051A (en) * | 2018-11-30 | 2019-03-22 | 河南建筑材料研究设计院有限责任公司 | It is a kind of for concrete and the pad pasting of Cement Mortar Used in Capital and preparation method thereof |
| CN116621605A (en) * | 2023-03-23 | 2023-08-22 | 安徽皖维花山新材料有限责任公司 | Powder concrete curing agent and preparation method thereof |
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| CN102219550B (en) | 2013-03-20 |
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Effective date of registration: 20191105 Address after: 272000 Quanfu Road, economic development zone, Sishui County, Jining City, Shandong Province Patentee after: Shandong Gaoxu New Material Co., Ltd Address before: 200233 Shanghai, Tianlin Road, No. 388, building 701, room 1, Patentee before: Shanghai Dongsheng New Materials Co., Ltd. |