CN105175011A - Repairing method for concrete pavement - Google Patents
Repairing method for concrete pavement Download PDFInfo
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- CN105175011A CN105175011A CN201510604513.8A CN201510604513A CN105175011A CN 105175011 A CN105175011 A CN 105175011A CN 201510604513 A CN201510604513 A CN 201510604513A CN 105175011 A CN105175011 A CN 105175011A
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Abstract
The invention relates to a repairing method for a concrete pavement. The repairing method comprises the following steps that damaged pits of the concrete pavement are cleaned up; high-pressure spray cleaning is performed; when no obvious water strain exists in the pits, a surface treating agent is sprayed on the broken concrete surface, wherein the surface treating agent is obtained by mixing phosphoric acid and hydrofluoric acid; after spraying is performed, standing is performed under an environment with the temperature of 15 DEG C-25 DEG C for 3-5 hours; drying is performed with a hot air blower; a bottom layer is painted on the broken concrete surface, a middle layer is sprayed on the surface of the bottom layer in 15 minutes after the bottom layer is painted, upper-layer concrete is poured on the middle layer in 30 minutes after the middle layer is sprayed, and surface-layer concrete is poured on the surface of the upper-layer concrete before initial setting of the upper-layer concrete; after room temperature standing and nursing are performed, repairing of the concrete pavement is completed. According to the repairing method, the defects that in the prior art, time consumption is long, and the repairing effect is poor are overcome.
Description
Technical field
The present invention relates to a kind for the treatment of of road surfaces method, particularly relate to a kind of method for repairing and mending of concrete road surface.
Background technology
Concrete road surface is the road surface that main raw does surface layer with cement concrete, and be a kind of high class pavement, in China, airfield runway majority all adopts concrete road surface, and concrete road surface has antiskid, planeness advantages of higher.But its shortcoming is also obvious, is exactly poor durability, repair complicated, after long-time use easily there is pit in concrete road surface, the problem such as to subside, and traditional concrete patching method is chiseled pit surrounding, formwork, build, maintenance, complex process, consuming time very long, and have between the concrete repaired and existing concrete and significantly join interface, in the use procedure in later stage, handing-over interface is easy to occur damaging.These have all had influence on the normal use of concrete road surface.
Summary of the invention
The invention provides a kind of method for repairing and mending of concrete road surface, this method for repairing and mending overcomes the defect of length consuming time in prior art, repair efficiency difference.
To achieve these goals, the present invention adopts following technical scheme:
1, a method for repairing and mending for concrete road surface, is characterized in that, comprises the steps:
1) adopt cleaning device by clean for the damaged pit cleaning of concrete road surface;
2) clean with the pit of high-pressure fog to concrete road surface, remove dust and the foreign material of broken concrete surface;
3) leave standstill, after not having obvious water mark in pit, at broken concrete surface sprayed surface treatment agent, described surface treatment agent obtains after being mixed with the mass ratio of 3:1 by the phosphoric acid of 10% mass concentration and the hydrofluoric acid of 5% mass concentration;
4) 3-5 hour is left standstill under spraying the environment of latter 15-25 DEG C;
5) with calorifier, broken concrete surface is dried;
6) at broken concrete surface brushing bottom, the gauge control of bottom is at 0.5-1mm, described bottom is by cement: flyash: polyacrylate dispersion: water obtains than after mixing and stirring with the quality of 30:50:3.8:16.2, and wherein the size controlling of flyash is at 200 orders;
7) in 15 minutes that complete in bottom brushing, toward bottom surface spraying middle layer, the gauge control in middle layer is at 2-5mm, and described middle layer obtains by after the component mixing and stirring of following weight part: cement 40 parts, 20 parts, kaolinite powder, fine sand 10 parts, ether of cellulose 0.5 part, naphthalenesulfonate formaldehyde condensation compound 2.3 parts, sulfonated lignin 2.2 parts, 25 parts, water, wherein the size controlling of kaolinite powder and fine sand is at 120 orders;
8), in 30 minutes that have sprayed in middle layer, build layer concrete on the intermediate layer, upper layer concrete by water, fine sand, rubble, cement and accelerating chemicals to obtain after the weight ratio mixing and stirring of 0.4:1.2:3:1:0.04;
9) before the concrete initial set of upper strata, on upper strata, concrete surface builds Surface layer's concrete, the gauge control of Surface layer's concrete at 2-4mm, its by water, fine sand, rubble, cement, staple fibre to obtain after the weight ratio mixing and stirring of 0.4:1.2:3:1:0.2;
10), after normal temperature leaves standstill maintenance 10-12 hour, the repairing of concrete road surface is namely completed.
The feature that the present invention is main:
1, speed is fast, and traditional pavement patching needs shabby road surface to chisel, dabbing, then formwork, build, maintenance, usually need the time of 4-7, and method described in the invention, usually can complete in 1-2 days, the impact of normal traffic is dropped to minimum.Fireballing major cause is: method of the present invention does not need to chisel, the shabby concrete of dabbing, only adopts the mode of surface treatment agent to carry out the process on old concrete surface, has saved many time.We know, in prior art, the effect of dabbing old concrete is the bonding surface in order to increase New-old concrete, increase bonding force between the two, we adopt the mode of acid to carry out surface treatment, by the mode of acid corrosion to increase the bonded area of New-old concrete.Also have in prior art and adopt the method for acid corrosion to carry out old concrete surface-treated, but be all generally adopt strong acid, because cement is alkalescence, acid meeting residual after surface treatment and novel concrete react, cause the deterioration of cement base-material, affect the intensity of novel concrete.The phosphoric acid that the present invention adopts and hydrofluoric acid are all weak acid, after adopting the phosphoric acid described in the inventive method and hydrofluoric acid to combine, both can carry out surface corrosion to old concrete, simultaneously owing to being weak acid, extend the reaction times on itself and old concrete surface, more putting in place of effects on surface process; Secondly confirm through test, the destruction of combination to the hydration reaction of cement of this weak acid is reduced; Moreover bottom with the addition of a large amount of flyash in the present invention, and polyacrylate dispersion strengthens the cohesive force of whole layer, thus reduces the consumption of cement, and due to the reduction of cement consumption, the destruction of residual acid to bottom is also reduced greatly.
2, the concrete firmness repaired is high, and wearing quality improves greatly.Traditional method for repairing and mending is at old concrete surface directly casting concrete, and because both proterties are different, the concrete of newly building and old concrete are easy to just ftracture, and cause new concrete very poor durability of repairing thus.The mode of the employing four-layer structure of uniqueness of the present invention, combined by bottom, middle layer, upper layer concrete and surface concrete, four-layer structure adopts different batchings, makes to combine closely between whole four-layer structure and between four-layer structure and old concrete.
3, bottom of the present invention is as adhesive layer, middle layer is had concrete firmly bond together, wherein affect the factor of cohesive force, except component, we also find there is relation with the particle diameter of component, when in component, the particle diameter of flyash is thinner, its bonding force is stronger, after it reaches 200 orders, bonding force reaches the highest, and now continue the particle diameter improving flyash again, it almost can not considered the impact of cohesive force.Therefore we the size controlling of flyash at 200 orders.Find through research, the size of particle diameter affects cohesive force, mainly because the surface treatment mode of the employing before us, after old concrete surface is crossed in the surface treatment agent process be made up of weak acid, the small hole that the old concrete surface place of being corroded is extremely many, at this time the particle diameter of bottom is less, and it can embed in hole, thus formed and old concrete be fitted together to, cohesive force between the two will be strengthened so greatly.Because the particle diameter of cement is enough little, therefore only need the particle diameter controlling flyash.
Embodiment
With specific embodiment, this invention is described below, but scope of the present invention is not limited to these embodiments.
Implement 1
Certain counties and townships' level highway has 10 kilometers long, all adopts concrete road surface, and in use after 5 years, many places pit appears in road surface, in order to repair this road section surface, adopts following method to repair:
1) adopt cleaning device by clean for the damaged pit cleaning of concrete road surface;
2) clean with the pit of high-pressure fog to concrete road surface, remove dust and the foreign material of broken concrete surface;
3) leave standstill, after not having obvious water mark in pit, at broken concrete surface sprayed surface treatment agent, described surface treatment agent obtains after being mixed with the mass ratio of 3:1 by the phosphoric acid of 10% mass concentration and the hydrofluoric acid of 5% mass concentration;
4) 4 hours are left standstill under spraying the environment of latter 15-25 DEG C;
5) with calorifier, broken concrete surface is dried;
6) at the bottom that broken concrete surface brushing 1mm is thick, described bottom is by cement: flyash: polyacrylate dispersion: water obtains than after mixing and stirring with the quality of 30:50:3.8:16.2, and wherein the size controlling of flyash is at 200 orders;
7) in 15 minutes that complete in bottom brushing, toward bottom surface spraying middle layer, the gauge control in middle layer is at 3mm, and described middle layer obtains by after the component mixing and stirring of following weight part: cement 40 parts, 20 parts, kaolinite powder, fine sand 10 parts, ether of cellulose 0.5 part, naphthalenesulfonate formaldehyde condensation compound 2.3 parts, sulfonated lignin 2.2 parts, 25 parts, water, wherein the size controlling of kaolinite powder and fine sand is at 120 orders;
8), in 30 minutes that have sprayed in middle layer, build layer concrete on the intermediate layer, upper layer concrete by water, fine sand, rubble, cement and accelerating chemicals to obtain after the weight ratio mixing and stirring of 0.4:1.2:3:1:0.04;
9) before the concrete initial set of upper strata, on upper strata, concrete surface builds Surface layer's concrete, the gauge control of Surface layer's concrete at 3mm, its by water, fine sand, rubble, cement, staple fibre to obtain after the weight ratio mixing and stirring of 0.4:1.2:3:1:0.2;
10) normal temperature left standstill maintenance after 12 hours, namely completed the repairing of concrete road surface.
Implement 2
In order to verify the weather resistance of above-mentioned method for repairing and mending, in this section, one section of 800 meters long is had to use conventional methods repairing.
Through observing above-mentioned section, after finding 1 year after having repaired, the road surface adopting the method in embodiment 1 to repair is no abnormal, and the road surface that in embodiment 2, traditional method carries out repairing has had place to occur crackle; After 2 years, still there is not exception in the road surface that in embodiment 1, method is repaired, and partial destruction has appearred in the road surface that in embodiment 2, traditional method is repaired, and part even well damage, needs again to repair.Visible its weather resistance of method for repairing and mending described in the invention will be longer than traditional method.
It will be recognized by those skilled in the art, under the prerequisite not departing from protection scope of the present invention, various amendment, change and combination can be carried out to above-mentioned embodiment, and think that this amendment, change and combination are within the scope of originality thought.
Claims (1)
1. a method for repairing and mending for concrete road surface, is characterized in that, comprises the steps:
1) adopt cleaning device by clean for the damaged pit cleaning of concrete road surface;
2) clean with the pit of high-pressure fog to concrete road surface, remove dust and the foreign material of broken concrete surface;
3) leave standstill, after not having obvious water mark in pit, at broken concrete surface sprayed surface treatment agent, described surface treatment agent obtains after being mixed with the mass ratio of 3:1 by the phosphoric acid of 10% mass concentration and the hydrofluoric acid of 5% mass concentration;
4) 3-5 hour is left standstill under spraying the environment of latter 15-25 DEG C;
5) with calorifier, broken concrete surface is dried;
6) at broken concrete surface brushing bottom, the gauge control of bottom is at 0.5-1mm, described bottom is by cement: flyash: polyacrylate dispersion: water obtains than after mixing and stirring with the quality of 30:50:3.8:16.2, and wherein the size controlling of flyash is at 200 orders;
7) in 15 minutes that complete in bottom brushing, toward bottom surface spraying middle layer, the gauge control in middle layer is at 2-5mm, and described middle layer obtains by after the component mixing and stirring of following weight part: cement 40 parts, 20 parts, kaolinite powder, fine sand 10 parts, ether of cellulose 0.5 part, naphthalenesulfonate formaldehyde condensation compound 2.3 parts, sulfonated lignin 2.2 parts, 25 parts, water, wherein the size controlling of kaolinite powder and fine sand is at 120 orders;
8), in 30 minutes that have sprayed in middle layer, build layer concrete on the intermediate layer, upper layer concrete by water, fine sand, rubble, cement and accelerating chemicals to obtain after the weight ratio mixing and stirring of 0.4:1.2:3:1:0.04;
9) before the concrete initial set of upper strata, on upper strata, concrete surface builds Surface layer's concrete, the gauge control of Surface layer's concrete at 2-4mm, its by water, fine sand, rubble, cement, staple fibre to obtain after the weight ratio mixing and stirring of 0.4:1.2:3:1:0.2;
10), after normal temperature leaves standstill maintenance 10-12 hour, the repairing of concrete road surface is namely completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510604513.8A CN105175011A (en) | 2015-09-21 | 2015-09-21 | Repairing method for concrete pavement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510604513.8A CN105175011A (en) | 2015-09-21 | 2015-09-21 | Repairing method for concrete pavement |
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| CN105175011A true CN105175011A (en) | 2015-12-23 |
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| CN201510604513.8A Withdrawn CN105175011A (en) | 2015-09-21 | 2015-09-21 | Repairing method for concrete pavement |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106832971A (en) * | 2017-02-12 | 2017-06-13 | 何梦玲 | A kind of modified asphalt cement concrete pavement construction method |
| CN111995433A (en) * | 2020-07-16 | 2020-11-27 | 广西大学 | Multi-section ablation type solvent for restoring microstructure of cement pavement and use method thereof |
| CN112176839A (en) * | 2020-09-17 | 2021-01-05 | 济南利民路桥工程有限责任公司 | Asphalt pavement repairing method |
Citations (5)
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|---|---|---|---|---|
| CN1218862A (en) * | 1997-12-05 | 1999-06-09 | 韩克勣 | Repairing technological method of bumpy concrete road surface |
| CN1435538A (en) * | 2002-02-02 | 2003-08-13 | 郭生云 | Quick road repairing method |
| CN1696405A (en) * | 2005-05-30 | 2005-11-16 | 渤海大学 | Method for repairing concrete pavement |
| CN102261034A (en) * | 2011-06-22 | 2011-11-30 | 张学 | Construction process for repairing concrete ground |
| CN102619157A (en) * | 2012-04-19 | 2012-08-01 | 招商局重庆交通科研设计院有限公司 | Method for repairing and constructing thin overlay of cement concrete road pavement |
-
2015
- 2015-09-21 CN CN201510604513.8A patent/CN105175011A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1218862A (en) * | 1997-12-05 | 1999-06-09 | 韩克勣 | Repairing technological method of bumpy concrete road surface |
| CN1435538A (en) * | 2002-02-02 | 2003-08-13 | 郭生云 | Quick road repairing method |
| CN1696405A (en) * | 2005-05-30 | 2005-11-16 | 渤海大学 | Method for repairing concrete pavement |
| CN102261034A (en) * | 2011-06-22 | 2011-11-30 | 张学 | Construction process for repairing concrete ground |
| CN102619157A (en) * | 2012-04-19 | 2012-08-01 | 招商局重庆交通科研设计院有限公司 | Method for repairing and constructing thin overlay of cement concrete road pavement |
Non-Patent Citations (2)
| Title |
|---|
| 张金升等: "《交通新材料》", 31 January 2014 * |
| 王松根等: "《水泥混凝土路面维修与改造》", 30 November 2011 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106832971A (en) * | 2017-02-12 | 2017-06-13 | 何梦玲 | A kind of modified asphalt cement concrete pavement construction method |
| CN106832971B (en) * | 2017-02-12 | 2019-04-16 | 华冠达工程有限公司 | A kind of modified asphalt cement concrete pavement construction method |
| CN111995433A (en) * | 2020-07-16 | 2020-11-27 | 广西大学 | Multi-section ablation type solvent for restoring microstructure of cement pavement and use method thereof |
| CN112176839A (en) * | 2020-09-17 | 2021-01-05 | 济南利民路桥工程有限责任公司 | Asphalt pavement repairing method |
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Application publication date: 20151223 |
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