CN101698589A - Novel patching material - Google Patents
Novel patching material Download PDFInfo
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- CN101698589A CN101698589A CN200910198387A CN200910198387A CN101698589A CN 101698589 A CN101698589 A CN 101698589A CN 200910198387 A CN200910198387 A CN 200910198387A CN 200910198387 A CN200910198387 A CN 200910198387A CN 101698589 A CN101698589 A CN 101698589A
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Abstract
The invention relates to a novel patching material which comprises the following components in percentage by mass: 70-75% of ash, 20-22% of polymer emulsion and 5-8% of fiber, wherein the ash comprises quick-hardening sulphoaluminate cement, a water reducing agent, an expanding agent and a setting accelerator. The patching material prepared according to the proportion can be used for quick patching of concrete bridges, dams, roads and buildings, and has the advantages of close bonding with concrete, high strength, endurable water resistance and corrosion resistance. When in use, the patching material of the invention does not need to level the construction base level or make a protective layer, thereby saving time and labor and being a nontoxic no-pollution environment-friendly patching material.
Description
Technical field
The invention belongs to material of construction and technical field of polymer materials, relate to a kind of fast repairing material that is used for concrete-bridge, dam, road, building, culvert, tunnel, especially a kind of cellulosic polymer patching material.
Background technology
Concrete is a kind of heterogeneous porous hard brittle material, and there is a large amount of holes in its inside, the low and lacking toughness of tensile strength.In case extraneous tension force surpasses its resistance to tension, will produce the crack.The reason that causes concrete cracking is a lot, mainly contains contraction, thermal stress, uneven settlement of foundation, alkali etc.And in a single day the crack has appearred in concrete, not only can be for outside etching medium enter the concrete condition that facilitates, and the process that accelerates the failure influences its weather resistance, and can influence its outward appearance.Some newly-built concrete workses particularly, the huge waste of human and material resources and financial resources if it is excluded cast again, not only can be brought in thermal stress or improper some cracks that produce of maintenance during owing to construction, cause enormous economic loss, and can incur loss through delay the duration.Therefore,, make it not influence original function, will bring huge economic benefit and social benefit if can in time repair to the crack.For many years, the scientific worker has developed a large amount of concrete repair materials both at home and abroad, has proposed multiple concrete repair materials such as cement based patching material and polymer class patching material, and concrete works is safeguarded and repaired.But at present the concrete road surface crack adopts the method for cement based patching material lid quilt to repair more, and this method not only engineering is huge, and the required cycle is longer, and can make concrete road surface after the repairing that increasing in various degree arranged, and is unwell to repeatedly and repairs; In addition, the more important thing is that the factor (as sulphate attack, alkali etc.) that causes concrete destruction can cause lid by concrete destruction equally.The polymer class patching material has demonstrated its exclusive advantage in this respect.Such patching material has good corrosion-resistant property, and chemical stability is good, and intensity height, good toughness, with old concrete good bonding is arranged.Polymer-based carbon cement concrete patching material can infilter in microscopic checks and the hole, forms film simultaneously on the surface, plays good surperficial sealing process, can effectively protect concrete.The polymer-based carbon patching material has stronger cohesive force between the old and new interface, this performance makes the concrete after using for many years to repair again.
Summary of the invention
The object of the present invention is to provide a kind of novel patching material, have fast coagulate, characteristics such as hard, high-strength, water proof anti-seepage, low temperature resistant, anti-erosion, long service life soon.
For reaching above purpose, solution of the present invention is:
A kind of novel patching material, it comprises ash, polymer emulsion part, fiber part.
It is 70%～75% that the mass percentage content of its each component is respectively ash, and polymer emulsion part is 20%～22%, and fiber part is 5%～8%.
Described ash comprises quick hardening sulphoaluminate cement, water reducer, swelling agent and urges agent with fixed attention.
It is 96%～98% that the mass percentage content of described each component of ash is respectively quick hardening sulphoaluminate cement, and water reducer is 0.8%～1.5%, and swelling agent is 0.8%～1.5%, and urging with fixed attention, agent is 0.4%～1%.
Described water reducer is naphthalene water reducer, FDN water reducer, polycarboxylate water-reducer or HSB aliphatic high-efficiency water reducing agent.
Described swelling agent is ettringite, magnesium oxide or calcium oxide.
Describedly urge with fixed attention that agent is Quilonum Retard or calcium hydroxide.
Described polymer emulsion part is polyethylene vinyl acetate emulsion, polymethyl acrylate, polyethyl acrylate, butyl polyacrylate, polymethylmethacrylate, polyethyl methacrylate, poly-n-butyl methacrylate or epoxy resin latex.
Described fiber part is polypropylene fibre or steel fiber.
Repair fast according to the patching material system of can directly mixing that aforementioned proportion makes; be applicable to the quick repairing of concrete-bridge, dam, road and building construction; its combine with concrete fine and closely woven, intensity is high, water resistance is lasting and corrosion-resistant; and do not need the formation level levelling when the present invention uses, do protective layer; the time and labour saving is a kind of patching material of nontoxic, free of contamination environmental protection.
Owing to adopted such scheme, the present invention to have following characteristics:
1) this material system of can directly mixing is repaired fast, reinforces, and the reinforcement concrete need not to add other subsidiary material.
2) this material can be resisted the erosion of vitriol and NaCl, also can be used for the repairing that ocean concrete engineering and cold district need the antifreeze concrete road surface of salting.
3) this material has compensated the contraction of cement owing to add swelling agent, has effectively prevented fissured generation, and because polymkeric substance self has stronger viscosity, makes the new-old concrete bonding firmly, difficult drop-off.
4) adding of fiber makes concrete toughness and wear resistance further strengthen.
5) because polymkeric substance has effectively reduced concrete space, make the waterproof resistance to frost very remarkable.
6) main raw material(s) of the required usefulness of this material all has commercially available, easy to implement.
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawing illustrated embodiment.
Patching material of the present invention has added swelling agent and water reducer, can effectively alleviate the internal stress that the cement snap cure brings, effectively prevent to produce the crack once more after polymer cement from repairing, next has added fibre composition, can effectively reduce internal stress, increase the toughness and the modulus of polymer cement, further improved concrete resistance to cleavage.
It mainly provides early strength by 70～75% ash, wherein ash comprises 96%～98% quick hardening sulphoaluminate cement, 0.8%～1.5% water reducer, 0.8%～1.5% swelling agent and 0.4%～1% is urged agent with fixed attention, 22～25% polymer emulsion provides stronger adhesive property and water resistance, adds fiber part of 5～8% again, has played reinforced action, improve concrete toughness, and further improved concrete resistance to cleavage.Slurry hour folding strength height with its preparation; and later stage sustainable growth; not only can be used for the repairing of road surface, bridge floor, bridge pier, building wall, dam, airfield runway and hardstand concrete defect, but also can be used for reinforcing and reinforcement that other concrete makes up.
The hydrated product of quick hardening sulphoaluminate cement is that ettringite provides early strength, micro-expansibility and erosion resistance.This forms polymer network structure polymkeric substance in the concrete that quick hardening sulphoaluminate cement makes, and is interweaved with continuous structure that the hardened cement slurry forms, and concrete structure is strengthened.When polymer emulsion mixed concrete in the concrete whipping process after, the polymer beads in the emulsion was dispersed in the cement concrete system.Aquation along with cement granules, a part of water is by the combination of hydrated cementitious institute in the system, moisture in the polymer slurry is transferred, and polymer beads is at hydrated product and do not flocculate in aquation particle surface, the pore, and space bigger in the mixture is filled by the polymkeric substance of flocculation.Along with further carrying out of hydrated cementitious, the moisture between the polymkeric substance is gradually by the combination of hydrated cementitious institute, and cross-lapping is together gradually for the polymkeric substance of flocculation.Further in-depth along with hydrated cementitious, polymkeric substance almost all accumulates in the cement slurry hole, after moisture in the polymkeric substance was absorbed by hydrated cementitious, polymer beads near aggregating into an integral body, formed the cancellated polymeric film of successive mutually in the concrete space.The polymeric film network is interweaved with hydrated cementitious product network and is intertwined, and forms a kind of inierpeneirating network structure, and aggregate is wrapped up into wherein.The inierpeneirating network structure of cement product and polymeric film improves concrete tensile strength, fracture toughness property, and density is improved, thereby makes the polymer cement waterproof concrete have stronger anti-crack and anti-seepage ability.
Secondly, the interaction that takes place between polymkeric substance and hydrated cementitious product has also improved cement slurry and concrete structure.Behind the polymer cement concrete blunge, the active group in some polymer molecules may with the Ca in the hydrated cementitious product
2+, Al
3+Deng producing crosslinking reaction, form special bridged bond effect, can improve hardening of cement slurry microstructure, alleviate internal stress, reduce the generation of tiny crack, thereby strengthened the concrete compactness of polymer cement waterproof.Also can interact between polymkeric substance and the hydrated cementitious product, cement slurry and concrete microstructure are played certain improvement effect by hydrogen bond, Van der Waals force.
In addition, polymer emulsion has certain water-reduction to fresh concrete.Mixing of polymkeric substance, can improve the concrete workability of polymer cement waterproof, can reduce concrete water cement ratio, thereby can reduce the pore fluid of concrete rate, improve concrete pore structure, reach the effect that strengthens the concrete impervious water-proof function of polymer cement waterproof.
The synthetic employed quick hardening sulphoaluminate cement of this material, label is not less than 525#, and its main component sees Table 1.The diminishing efficient of high efficiency water reducing agent is not less than 25%, and Quilonum Retard etc. urge with fixed attention that agent is commercially available technical grade commodity, and its fineness is 6.8%.The concrete prescription of implementing sees Table 2.Test its cohesive strength, compressive strength etc. the results are shown in Table 3.
The main component of table 1 cement (%)
| Item is not | ??SiO 2 | ??Al 2O 3 | ??Fe 2O 3 | ??CaO | ??MgO | ??SO 3 |
| Quick hardening sulphoaluminate cement | ??6.49 | ??35.31 | ??1.64 | ??41.76 | ??1.23 | ??13.34 |
Table 2 Example formulations
| Item is not | Embodiment A | Embodiment B |
| Ash (swelling agent is urged agent with fixed attention for quick hardening sulphoaluminate, water reducer) | 75% (quick hardening sulphoaluminate, water reducer, swelling agent, urging with fixed attention, the agent ratio is respectively 96%, 1.5%, 1.5%, 1%) | 70% (quick hardening sulphoaluminate, water reducer, swelling agent, urging with fixed attention, the agent ratio is respectively 98%, 0.8%, 0.8%, 0.4%) |
| Polymer emulsion | ??20％ | ??22％ |
| Fiber | ??5％ | ??8％ |
The various performances of table 3 patching material
| Kind | Flexural strength (Mpa) | Compressive strength (Mpa) | Cohesive strength (Mpa) | Water-intake rate (%) | Dry shrinkage X 10 -4 |
| ??A | ??80 | ??160 | ??15 | ??10 | ??5 |
| Kind | Flexural strength (Mpa) | Compressive strength (Mpa) | Cohesive strength (Mpa) | Water-intake rate (%) | Dry shrinkage X 10 -4 |
| ??B | ??90 | ??170 | ??20 | ??14 | ??7 |
Ratio is mass percent described in the literary composition.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiment, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the invention is not restricted to the embodiment here, those skilled in the art should be within protection scope of the present invention for improvement and modification that the present invention makes according to announcement of the present invention.
Claims (9)
1. novel patching material, it is characterized in that: it comprises ash, polymer emulsion part, fiber part.
2. novel patching material as claimed in claim 1 is characterized in that: it is 70%～75% that the mass percentage content of its each component is respectively ash, and polymer emulsion part is 20%～22%, and fiber part is 5%～8%.
3. novel patching material as claimed in claim 1 or 2 is characterized in that: described ash comprises quick hardening sulphoaluminate cement, water reducer, swelling agent and urges agent with fixed attention.
4. novel patching material as claimed in claim 3, it is characterized in that: it is 96%～98% that the mass percentage content of described each component of ash is respectively quick hardening sulphoaluminate cement, water reducer is 0.8%～1.5%, and swelling agent is 0.8%～1.5%, and urging with fixed attention, agent is 0.4%～1%.
5. novel patching material as claimed in claim 3 is characterized in that: described water reducer is naphthalene water reducer, FDN water reducer, polycarboxylate water-reducer or HSB aliphatic high-efficiency water reducing agent.
6. novel patching material as claimed in claim 3 is characterized in that: described swelling agent is ettringite, magnesium oxide or calcium oxide.
7. novel patching material as claimed in claim 3 is characterized in that: describedly urge with fixed attention that agent is Quilonum Retard or calcium hydroxide.
8. novel patching material as claimed in claim 1 is characterized in that: described polymer emulsion part is polyethylene vinyl acetate emulsion, polymethyl acrylate, polyethyl acrylate, butyl polyacrylate, polymethylmethacrylate, polyethyl methacrylate, poly-n-butyl methacrylate or epoxy resin latex.
9. novel patching material as claimed in claim 1 is characterized in that: described fiber part is polypropylene fibre or steel fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910198387A CN101698589A (en) | 2009-11-06 | 2009-11-06 | Novel patching material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910198387A CN101698589A (en) | 2009-11-06 | 2009-11-06 | Novel patching material |
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| CN101698589A true CN101698589A (en) | 2010-04-28 |
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| CN200910198387A Pending CN101698589A (en) | 2009-11-06 | 2009-11-06 | Novel patching material |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857416A (en) * | 2010-06-13 | 2010-10-13 | 中国建筑材料科学研究总院 | Polymer emulsion modified rapid repair mortar and preparation method thereof |
| CN105523745A (en) * | 2016-01-08 | 2016-04-27 | 甘肃省交通规划勘察设计院有限责任公司 | Bridge expansion joint fast reparation material |
| CN105541232A (en) * | 2015-12-31 | 2016-05-04 | 北京纽维逊建筑工程技术有限公司 | Waterborne epoxy emulsion repairing mortar and preparation method thereof |
| CN105645856A (en) * | 2016-03-22 | 2016-06-08 | 苏州百联建筑工程有限公司 | Quick and high-strength special repair mortar for airport road |
| CN106587885A (en) * | 2016-12-12 | 2017-04-26 | 中国建筑材料科学研究总院 | Patching material for waterproof-layer protective layers of bridge floors of existing railway bridges and application of patching material |
| CN106747050A (en) * | 2016-11-18 | 2017-05-31 | 中建西部建设西南有限公司 | A kind of concrete leakproof cream and preparation method thereof, application |
| CN107344835A (en) * | 2017-07-20 | 2017-11-14 | 徐州工程学院 | A kind of plugging material in cement concrete pavement of aerodrome crack |
| CN107386679A (en) * | 2017-08-01 | 2017-11-24 | 福州皇家地坪有限公司 | A kind of method in fast drying repair terrazzo cavity |
| CN107555920A (en) * | 2017-10-12 | 2018-01-09 | 沈阳建筑大学 | A kind of salt tolerant erosion patching additive of cement concrete and its preparation and application method |
| CN107673681A (en) * | 2017-11-17 | 2018-02-09 | 河南万里路桥集团股份有限公司 | A kind of Concrete crack repair material and preparation method thereof |
| CN108083731A (en) * | 2017-12-22 | 2018-05-29 | 谢涛 | A kind of cement concrete pavement renovation material and preparation method thereof |
| CN109400026A (en) * | 2018-11-15 | 2019-03-01 | 重庆工业职业技术学院 | New type chemical material for building |
| CN109678419A (en) * | 2018-12-27 | 2019-04-26 | 江西省机场集团公司宜春机场分公司 | A kind of concrete road surface patching material and its preparation method and application |
| CN110357546A (en) * | 2019-08-20 | 2019-10-22 | 贵州省交通规划勘察设计研究院股份有限公司 | A kind of repairing building cracks material and preparation method thereof |
| CN110723950A (en) * | 2019-10-29 | 2020-01-24 | 上海贝恒人居建设集团南通有限公司 | PC repairing material for PC member large repairing surface |
| CN111018453A (en) * | 2019-12-02 | 2020-04-17 | 中国公路工程咨询集团有限公司 | Preparation method and application of composite modified cement repair material |
| CN111170702A (en) * | 2020-01-20 | 2020-05-19 | 中铁十二局集团有限公司 | Concrete surface rapid repairing material and preparation method thereof |
| CN114349450A (en) * | 2021-12-08 | 2022-04-15 | 山东大学 | Double-network interpenetration high-erosion-resistance structure grouting material and preparation method and application thereof |
-
2009
- 2009-11-06 CN CN200910198387A patent/CN101698589A/en active Pending
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857416B (en) * | 2010-06-13 | 2013-05-08 | 中国建筑材料科学研究总院 | Polymer emulsion modified rapid repair mortar and preparation method thereof |
| CN101857416A (en) * | 2010-06-13 | 2010-10-13 | 中国建筑材料科学研究总院 | Polymer emulsion modified rapid repair mortar and preparation method thereof |
| CN105541232A (en) * | 2015-12-31 | 2016-05-04 | 北京纽维逊建筑工程技术有限公司 | Waterborne epoxy emulsion repairing mortar and preparation method thereof |
| CN105523745A (en) * | 2016-01-08 | 2016-04-27 | 甘肃省交通规划勘察设计院有限责任公司 | Bridge expansion joint fast reparation material |
| CN105645856A (en) * | 2016-03-22 | 2016-06-08 | 苏州百联建筑工程有限公司 | Quick and high-strength special repair mortar for airport road |
| CN106747050B (en) * | 2016-11-18 | 2019-08-23 | 中建西部建设西南有限公司 | A kind of concrete leakproof cream and preparation method thereof, application |
| CN106747050A (en) * | 2016-11-18 | 2017-05-31 | 中建西部建设西南有限公司 | A kind of concrete leakproof cream and preparation method thereof, application |
| CN106587885A (en) * | 2016-12-12 | 2017-04-26 | 中国建筑材料科学研究总院 | Patching material for waterproof-layer protective layers of bridge floors of existing railway bridges and application of patching material |
| CN107344835A (en) * | 2017-07-20 | 2017-11-14 | 徐州工程学院 | A kind of plugging material in cement concrete pavement of aerodrome crack |
| CN107386679A (en) * | 2017-08-01 | 2017-11-24 | 福州皇家地坪有限公司 | A kind of method in fast drying repair terrazzo cavity |
| CN107555920A (en) * | 2017-10-12 | 2018-01-09 | 沈阳建筑大学 | A kind of salt tolerant erosion patching additive of cement concrete and its preparation and application method |
| CN107555920B (en) * | 2017-10-12 | 2019-11-12 | 沈阳建筑大学 | A kind of salt tolerant erosion patching additive of cement concrete and its preparation and application method |
| CN107673681A (en) * | 2017-11-17 | 2018-02-09 | 河南万里路桥集团股份有限公司 | A kind of Concrete crack repair material and preparation method thereof |
| CN108083731A (en) * | 2017-12-22 | 2018-05-29 | 谢涛 | A kind of cement concrete pavement renovation material and preparation method thereof |
| CN109400026A (en) * | 2018-11-15 | 2019-03-01 | 重庆工业职业技术学院 | New type chemical material for building |
| CN109678419A (en) * | 2018-12-27 | 2019-04-26 | 江西省机场集团公司宜春机场分公司 | A kind of concrete road surface patching material and its preparation method and application |
| CN110357546A (en) * | 2019-08-20 | 2019-10-22 | 贵州省交通规划勘察设计研究院股份有限公司 | A kind of repairing building cracks material and preparation method thereof |
| CN110357546B (en) * | 2019-08-20 | 2022-01-21 | 贵州省交通规划勘察设计研究院股份有限公司 | Building crack repairing material and preparation method thereof |
| CN110723950A (en) * | 2019-10-29 | 2020-01-24 | 上海贝恒人居建设集团南通有限公司 | PC repairing material for PC member large repairing surface |
| CN111018453A (en) * | 2019-12-02 | 2020-04-17 | 中国公路工程咨询集团有限公司 | Preparation method and application of composite modified cement repair material |
| CN111170702A (en) * | 2020-01-20 | 2020-05-19 | 中铁十二局集团有限公司 | Concrete surface rapid repairing material and preparation method thereof |
| CN114349450A (en) * | 2021-12-08 | 2022-04-15 | 山东大学 | Double-network interpenetration high-erosion-resistance structure grouting material and preparation method and application thereof |
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Open date: 20100428 |