CN102765919A - Quick patching material for cement concrete pavement and preparation method thereof - Google Patents
Quick patching material for cement concrete pavement and preparation method thereof Download PDFInfo
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- CN102765919A CN102765919A CN2011101148905A CN201110114890A CN102765919A CN 102765919 A CN102765919 A CN 102765919A CN 2011101148905 A CN2011101148905 A CN 2011101148905A CN 201110114890 A CN201110114890 A CN 201110114890A CN 102765919 A CN102765919 A CN 102765919A
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- epoxy resin
- cement concrete
- flyash
- concrete
- polyurethane
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a polymer concrete mortar for quick patching of cement concrete pavements and a preparation method thereof. The material is prepared in proportion by taking industrial waste flyash as a main raw material, a polyurethane-modified epoxy resin as a binder, a modified polyamine as a curing agent, and adding a right amount of an active dilution toughening agent. The specific proportion is accounted as: in parts by weight, 200 to 300 of flyash, 100 to 150 of polyurethane-modified epoxy resin, 100 to 150 of polyamine, 15 to 30 of a diluent, and 5 to 20 of an exciting agent. The patching material for cement concrete pavements prepared by the invention has the advantages of rapid hardening early strength (curing time: 10-40 min; compressive strength of 65-75 MPa), strong bonding power with cement concrete so that the construction can be performed in wet and low-temperature conditions, high cured strength, good toughness, smooth surface, and excellent abrasive resistance and shock resistance.
Description
Technical field
The present invention relates to field of materials, particularly relate to the new polymers concrete mortar preparation methods of civil engineering works such as a kind of remedial cement concrete road surface fast.
Background technology
Since the reform and opening-up; Along with rapid development of national economy; Traffic volume of highway and carload lot increase day by day; The damage of pavement structure is quickened day by day, and the old concrete road surface of not only having accelerated to build in early days is near its work-ing life, and makes newly-built in recent years cement concrete pavement damage in various degree when reaching its design period far away, just occur.According to incompletely statistics, the existing cement concrete pavement of China will have the repairing of all being faced with about 20-30% and improve.
Need repair after the breakage of concrete road surface, but because the demand of the present network of communication lines to when the road that uses carries out pavement patching, does not allow long-time close traffic, especially motorway and urban road.Therefore, quick repair technology of cement concrete pavement research is still one of problem of being badly in need of research in suitable from now on segment length's time.Patching material must be a kind of material of low-shrinkage, otherwise can occur than hightension repairing the boundary.The creep properties of patching material should be decided according to concrete environment for use, and it is good that patching material and substrate material are combined, and suffered internal stress remains in the minimum scope, and the thermal expansivity of patching material and Young's modulus must be superior on the matrix coagulation.Because present all kinds of patching material generally all has enough ultimate compression strength, and actual patching material is prone to produce tension stress, so patching material must possess bigger tensile strength; Interface between patching material and matrix concrete bonding is the weak link of repairing always, so patching material must possess good fatigue strength and stronger cohesive force, thereby guarantees the weather resistance of patching material; On the arrangement of reinforcement coagulation, patching material and necessary similar porosity and the resistivity of tool of substrate material if the resistivity contrasts of patching material is bigger, can make the solution potential of matrix concrete zone or repairing area increase, and then can produce the corrosion aggravation of ox reinforcing bar; Patching material must have better chemical stability, and lower chemically reactive can corrosion reinforcing bar and generation alkali.
The patching material of cement concrete pavement is researched and developed for many years both at home and abroad, and technology and technology is innovation and perfect constantly.And in recent years, with trade waste---flyash is applied in the high performance concrete patching material field, not only turns waste into wealth, and has improved the resources effective utilization, and flyash self also can strengthen each item performance of patching material.
Summary of the invention
This project utilizes trade waste flyash to make the high performance concrete patching material just to above problem.Contain active SiO in the flyash
2, active A l
2O
3And the favourable composition of f-CaO (free calcium oxide) isoreactivity, sulphur is a part of with soluble plasters (CaSO in flyash
4) form exist, it has certain effect to the performance of flyash early strength, so the sulphur in the flyash also is favourable composition to flyash activity.Calcium contents in the flyash is about 3%, and it is favourable to the formation of gel.
Technical problem to be solved by this invention is: provide a kind of cement concrete pavement to repair fast and use the polymer concrete mortar; It adopts the new type of polymer concrete material; With cheap raw material, repair impaired cement concrete pavement fast; Reduce the repair maintenance time, reduce and repair cost.
The present invention solves its technical problem and adopts following technical scheme:
The wood invention relates to a kind of cement concrete pavement and repairs fast with polymer concrete mortar and preparation method thereof.This material is a main raw material with industrial waste flyash, to be sticker through polyurethane-modified epoxy resin, is solidifying agent with the polyamine through modification, adds an amount of activity dilution toughner, and is formulated in proportion.Concrete proportioning is counted by weight: flyash (200～300); Polyurethane modified epoxy resin (100～150); Modified multicomponent amine (100～150); Thinner (15～30); Exciting agent (5-20).
The physicochemical property of flyash, structure, size distribution, fineness and pattern play an important role to the quality of flyash quality product.Although it has higher lateral reactivity, because its particle surface is fine and close, major part is slick glass ball shape microballon, need under the effect of exciting agent, could bring into play its volcanical ash effect better.The exciting agent of choosing among the present invention is one or more or theys' in calcium hydroxide, calcium sulfate, water glass, NaCl, the calcination red mud a mixture etc., and simultaneously according to the orthogonal design principle, the preferred the optimum mix amount of various materials.
Cement concrete pavement provided by the invention is repaired fast with the polymer concrete mortar and is processed by following method, and its step comprises:
(1) industrial waste flyash, epoxy resin, modified multicomponent amine and active dilution toughner are counted flyash (200～300) by weight; Polyurethane modified epoxy resin (100～150); Modified multicomponent amine (100～150); Thinner (15～30); Exciting agent (5-20).
(2) pass through polyurethane modified epoxy resin earlier; Again the active dilution of the used for epoxy resin after modification toughner is diluted with toughness reinforcing, add the modified multicomponent amine hardener then, after stirring rapidly; Add flyash; And flyash excitant, stirring fast once more and construction immediately, the engineering time is controlled in the 10min; Behind the resin solidification, just obtain polymer concrete.
Said polyurethane modified epoxy resin carries out modification through end isocyanato Polyether-Polyol Polyurethane Prepolymer to epoxy resin.Active dilution toughner can adopt DGEEG.Modified multicomponent amine can adopt highly active phenolic aldehyde amine X-89.
Cement concrete pavement speed provided by the invention is repaired and is used the polymer concrete mortar, uses in the quick repairing after damage in cement concrete pavement or the emergency maintenance of other concrete works.
Polymer concrete mortar provided by the invention, compare with the traditional cement concrete and to have following major advantage:
1. adopting with flyash is main raw material, therefore not only turns waste into wealth, and reduces cost, and is beneficial to environment protection.
2. intensity is high.This material is to utilize the good epoxy resin of adhesiveproperties as sticker (gelling material), and as filler, modified multicomponent amine high with reactive behavior, good combination property is prepared from as solidifying agent according to a certain ratio with industrial waste flyash.Since can form highly cross-linked polymer network behind the epoxy resin cure, the cured product excellent performance, its compressive strength is higher 1～2 times than cement concrete, and flexural strength is more than 10 times of cement concrete.
3. good toughness.Adopt polyurethane modified epoxy resin, through urethane increase people's effect, strengthened the shock resistance and the anti-moving load property of epoxy resin.
4. curing speed is fast.Under the effect of modified multicomponent amine hardener, epoxy resin can be realized fast setting (sclerosis), can in 10～40min, reach working strength, and early strength is high, can be good at satisfying the requirement that cement concrete pavement is repaired fast.
5. can adjust the set time and the mechanical property of polymer concrete through changing proportioning raw materials, thereby satisfy the different demands of different occasions.
6. be widely used.This material is mainly used in the quick repairing after the damage in cement concrete pavement, also can be widely used in the emergency maintenance of concrete workses such as building, road, harbour, tunnel, therefore is convenient to promote.
Embodiment
Do experiment by following instance proportioning, test its set time and compressive strength.
Instance 1: when flyash, polyurethane modified epoxy resin, phenolic aldehyde amine X-89, DGEEG prepared polymer concrete, its proportioning was followed successively by 250: 100: 15 by weight: 15.
Instance 2: when flyash, polyurethane modified epoxy resin, phenolic aldehyde amine X-89, DGEEG prepared polymer concrete, its proportioning was followed successively by 250: 100: 20 by weight: 15.
Instance 3: when flyash, polyurethane modified epoxy resin, phenolic aldehyde amine X-89, DGEEG prepared polymer concrete, its proportioning was followed successively by 250: 100: 25 by weight: 15.
Instance 4: when flyash, polyurethane modified epoxy resin, phenolic aldehyde amine X-89, DGEEG prepared polymer concrete, its proportioning was followed successively by 250: 100: 30 by weight: 15.
Instance 5: when flyash, polyurethane modified epoxy resin, phenolic aldehyde amine X-89, DGEEG prepared polymer concrete, its proportioning was followed successively by 300: 100: 15 by weight: 15.
Instance 6: when flyash, polyurethane modified epoxy resin, phenolic aldehyde amine X-89, DGEEG prepared polymer concrete, its proportioning was followed successively by 250: 100: 20 by weight: 15.
Instance 7: when flyash, polyurethane modified epoxy resin, phenolic aldehyde amine X-89, DGEEG prepared polymer concrete, its proportioning was followed successively by 250: 100: 25 by weight: 15.
Instance 8: when flyash, polyurethane modified epoxy resin, phenolic aldehyde amine X-89, DGEEG prepared polymer concrete, its proportioning was followed successively by 250: 100: 30 by weight: 15.
Cement concrete pavement by above-mentioned each example formulations is made is repaired with polymer concrete material mortar fast, and through test, its salient features is seen table 1.
The foregoing description is to further specify of the present invention, but does not limit the present invention.
Cement concrete pavement speed provided by the invention is repaired and is used the polymer concrete mortar, uses in the quick repairing after damage in cement concrete pavement or the emergency maintenance of other concrete works.
Subordinate list:
The salient features of table 1 quick patching material for cement concrete pavement
| Performance | Set time (min) | Compressive strength (MPa) |
| Index | ?10～40 | ?65～75 |
Claims (6)
1. a cement concrete pavement is repaired fast and is used the polymer concrete mortar; It is characterized in that with industrial waste flyash be main raw material, to be sticker through polyurethane-modified epoxy resin, is solidifying agent with modified multicomponent amine; Add an amount of activity dilution toughner, formulated in proportion; Concrete proportioning is counted by weight: flyash (200～300); Polyurethane modified epoxy resin (100～150); Modified multicomponent amine (100～150); Thinner (15～30); Exciting agent (5-20).
2. a cement concrete pavement is repaired the preparation method with the polymer concrete mortar fast, it is characterized in that processing by following method, and its step comprises:
(1) proportioning: industrial waste flyash, polyurethane modified epoxy resin, modified multicomponent amine and active dilution toughner are counted by weight, and concrete proportioning is counted by weight: flyash (200～300); Polyurethane modified epoxy resin (100～150); Modified multicomponent amine (100～150); Thinner (15～30).
(2) preparation technology: pass through polyurethane modified epoxy resin earlier; Again the active dilution of the used for epoxy resin after modification toughner is diluted with toughness reinforcing; Add the modified multicomponent amine hardener then, after stirring rapidly, add flyash; Stir fast once more and construction immediately, the engineering time is controlled in the 10min; Behind the resin solidification, just obtain polymer concrete.
3. cement concrete pavement according to claim 2 is repaired the preparation method with the polymer concrete mortar fast, it is characterized in that through end isocyanato Polyether-Polyol Polyurethane Prepolymer epoxy resin being carried out modification.
4. cement concrete pavement according to claim 2 is repaired the preparation method with the polymer concrete mortar fast, it is characterized in that set time: 10～40min.
5. cement concrete pavement according to claim 2 is repaired the preparation method with the polymer concrete mortar fast, it is characterized in that prepared concrete, its compressive strength 65～75MPa.
6. a cement concrete pavement is repaired fast and is used the polymer concrete mortar, uses in the quick repairing after damage in cement concrete pavement or the emergency maintenance of other concrete works.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101148905A CN102765919A (en) | 2011-05-05 | 2011-05-05 | Quick patching material for cement concrete pavement and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101148905A CN102765919A (en) | 2011-05-05 | 2011-05-05 | Quick patching material for cement concrete pavement and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102765919A true CN102765919A (en) | 2012-11-07 |
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| CN2011101148905A Pending CN102765919A (en) | 2011-05-05 | 2011-05-05 | Quick patching material for cement concrete pavement and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497747A (en) * | 2013-08-12 | 2014-01-08 | 白银金奇化工科技有限公司 | Well cementing slurry lightening agent and preparation method thereof |
| CN103787621A (en) * | 2013-12-17 | 2014-05-14 | 陕西理工学院 | Geopolymer-polymer composite board and preparation method thereof |
| CN104261765A (en) * | 2014-09-29 | 2015-01-07 | 小浪底水利水电工程有限公司 | Epoxy resin polymer mortar and production process thereof |
| CN104817301A (en) * | 2015-05-05 | 2015-08-05 | 中国铁道科学研究院金属及化学研究所 | Cement-emulsified asphalt mortar being controllable in setting time and preparation method thereof |
| CN105884253A (en) * | 2016-04-12 | 2016-08-24 | 武汉理工大学 | Quick-repairing polymer mortar and application |
| CN106565157A (en) * | 2016-10-19 | 2017-04-19 | 长安大学 | Organic modified reinforcement and strengthening road surface material and preparation method thereof |
| CN107418644A (en) * | 2017-06-02 | 2017-12-01 | 太原理工大学 | A kind of briquette binder preparation method and application |
-
2011
- 2011-05-05 CN CN2011101148905A patent/CN102765919A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497747B (en) * | 2013-08-12 | 2016-06-01 | 白银金奇化工科技有限公司 | A kind of cementing slurry additive and its preparation method |
| CN103497747A (en) * | 2013-08-12 | 2014-01-08 | 白银金奇化工科技有限公司 | Well cementing slurry lightening agent and preparation method thereof |
| CN103787621B (en) * | 2013-12-17 | 2015-10-28 | 陕西理工学院 | A kind of ground polymers-polymkeric substance composite sheet and preparation method thereof |
| CN103787621A (en) * | 2013-12-17 | 2014-05-14 | 陕西理工学院 | Geopolymer-polymer composite board and preparation method thereof |
| CN104261765B (en) * | 2014-09-29 | 2015-06-03 | 小浪底水利水电工程有限公司 | Epoxy resin polymer mortar and production process thereof |
| CN104261765A (en) * | 2014-09-29 | 2015-01-07 | 小浪底水利水电工程有限公司 | Epoxy resin polymer mortar and production process thereof |
| CN104817301A (en) * | 2015-05-05 | 2015-08-05 | 中国铁道科学研究院金属及化学研究所 | Cement-emulsified asphalt mortar being controllable in setting time and preparation method thereof |
| CN105884253A (en) * | 2016-04-12 | 2016-08-24 | 武汉理工大学 | Quick-repairing polymer mortar and application |
| CN105884253B (en) * | 2016-04-12 | 2018-10-09 | 武汉理工大学 | The polymer mortar of Rapid-Repair and application |
| CN106565157A (en) * | 2016-10-19 | 2017-04-19 | 长安大学 | Organic modified reinforcement and strengthening road surface material and preparation method thereof |
| CN106565157B (en) * | 2016-10-19 | 2018-12-28 | 长安大学 | A kind of organically-modified reinforcement and strengthening ground surface material and preparation method thereof |
| CN107418644A (en) * | 2017-06-02 | 2017-12-01 | 太原理工大学 | A kind of briquette binder preparation method and application |
| CN107418644B (en) * | 2017-06-02 | 2019-11-01 | 太原理工大学 | A kind of application of briquette binder |
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Application publication date: 20121107 |