CN111188238A - Method for reinforcing pavement by using carbon fiber mesh cloth - Google Patents
Method for reinforcing pavement by using carbon fiber mesh cloth Download PDFInfo
- Publication number
- CN111188238A CN111188238A CN202010032205.3A CN202010032205A CN111188238A CN 111188238 A CN111188238 A CN 111188238A CN 202010032205 A CN202010032205 A CN 202010032205A CN 111188238 A CN111188238 A CN 111188238A
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- CN
- China
- Prior art keywords
- carbon fiber
- mesh cloth
- fiber mesh
- epoxy mortar
- reinforcing
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Repair (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a method for reinforcing a pavement by using carbon fiber mesh cloth, which comprises the following steps: (1) flattening the surface of the road base surface and fixing a carbon fiber mesh cloth; (2) coating the carbon fiber gridding cloth in the sprinkling irrigation epoxy mortar; (3) after the epoxy mortar is cured, adding a protective layer on the surface of the epoxy mortar; (4) standing for 7-24 days and maintaining. By adopting the technical scheme, the carbon fiber mesh cloth is laid on the road base surface, and the epoxy mortar is used for coating the carbon fiber mesh cloth, so that on one hand, the cracking of the road can be effectively avoided, the rainwater is prevented from permeating and damaging the road base surface, on the other hand, the carbon fiber mesh cloth has stronger tensile strength, the thickness of the required reinforced surface layer is effectively reduced, and the important effect on avoiding serious accidents can be realized once the road surface collapses; in addition, the carbon fiber grids have the characteristics of moisture resistance, corrosion resistance, salt mist resistance, and simple long-term maintenance, and the maintenance cost is greatly reduced.
Description
Technical Field
The invention relates to a method for reinforcing a pavement by using carbon fiber mesh cloth, and belongs to the application of a carbon fiber reinforcing technology in the field of construction.
Background
The carbon fiber mesh cloth is also called carbon fiber cloth, carbon fiber woven cloth and the like, has the characteristics of high strength, small density, thin thickness, no increase of the dead weight of a reinforcing member, no increase of the section size and the like, and is widely applied to various fields at present. The carbon fiber mesh cloth is used for tensile and seismic reinforcement of structural members, the material and matched impregnating adhesive are jointly used to form a carbon fiber composite material, a complete carbon fiber cloth sheet reinforcing system with excellent performance can be formed, and the material is suitable for reinforcing engineering for treating increase of using load of buildings, change of using functions of engineering, material aging, lower concrete strength grade than a design value, treatment of structural cracks, repair of service members in severe environment and protection. The carbon fiber mesh cloth has wide application range, and is widely applied to the reinforcement and restoration, the earthquake resistance reinforcement and the node structural reinforcement of various structural types and structural shapes such as buildings, bridges, tunnels and the like. The carbon fiber mesh cloth is convenient to construct, large-scale machines and equipment are not needed, wet operation is not needed, fire is not needed, on-site fixing facilities are not needed, the occupied site for construction is small, the construction efficiency is high, the durability is high, and the carbon fiber mesh cloth is not rusted and is very suitable for being used in high-acid, alkali, salt and atmospheric corrosion environments. At present, most urban roads use asphalt pavements, the asphalt pavements are easy to crack, and the damage of road base layers can be caused by rainwater penetration; in addition, road collapse is an unpredictable risk in urban traffic, often resulting in pedestrians and vehicles falling under the collapsed road, causing personal danger.
Disclosure of Invention
Therefore, the invention aims to provide a method for reinforcing a pavement by using carbon fiber mesh cloth, which effectively reduces the thickness of a required reinforcing surface layer by using the stronger tensile strength of carbon fibers.
In order to achieve the purpose, the method for reinforcing the pavement by using the carbon fiber mesh cloth comprises the following steps of:
(1) flattening the surface of the road base surface and fixing a carbon fiber mesh cloth;
(2) coating the carbon fiber gridding cloth in the sprinkling irrigation epoxy mortar;
(3) after the epoxy mortar is cured, adding a protective layer on the surface of the epoxy mortar;
(4) standing for 7-24 days and maintaining.
The carbon fiber mesh cloth is tightly attached to the road base surface and fixed.
The thickness of the epoxy mortar is 5-30 mm.
And 2, carrying out layered spray irrigation on the epoxy mortar, embedding or immersing the carbon fiber gridding cloth into the epoxy mortar during spray irrigation of the first layer, and then spraying and irrigating a second layer to cover the first layer, so that the spray irrigation is carried out layer by layer.
And (4) after spraying the epoxy mortar, troweling the surface of the epoxy mortar.
The protective layer comprises asphalt or protective paint.
Before the step 1, a high-pressure water gun is used for roughening and cleaning the road base surface, and chamfering and rounding sharp turns or damaged parts.
By adopting the technical scheme, the carbon fiber mesh cloth is laid on the road base surface, and the epoxy mortar is used for coating the carbon fiber mesh cloth, so that on one hand, the cracking of the road can be effectively avoided, the rainwater is prevented from permeating and damaging the road base surface, on the other hand, the carbon fiber mesh cloth has stronger tensile strength, the thickness of the required reinforced surface layer is effectively reduced, and the important effect on avoiding serious accidents can be realized once the road surface collapses; in addition, the carbon fiber grids have the characteristics of moisture resistance, corrosion resistance, salt mist resistance, and simple long-term maintenance, and the maintenance cost is greatly reduced.
Drawings
Fig. 1 is a schematic structural diagram of a carbon fiber mesh cloth.
Fig. 2 is a schematic structural diagram of a pavement reinforced by the carbon fiber mesh cloth of the invention.
Detailed Description
The invention is described in further detail below with reference to the figures and the detailed description.
As shown in the figure, the method for reinforcing the pavement by using the carbon fiber mesh cloth comprises the following steps of:
(1) firstly, roughening and cleaning a road base surface 1 by using a high-pressure water gun, and rounding a sharp turn or a large damaged part;
(2) cutting the carbon fiber mesh cloth 2 according to the size of the road base surface 1;
(3) positioning the carbon fiber mesh cloth 2 on the road base surface 1 through expansion bolts (not shown in the figure), wherein the carbon fiber mesh cloth 2 is tightly attached to the road base surface 1;
(4) preparing epoxy mortar;
(5) the epoxy mortar is sprayed to the road base surface 1 under pressure through a concrete sprayer, a layered spraying mode can be adopted, the carbon fiber mesh cloth 2 is embedded or immersed into the first layer after the first layer is sprayed, then the second layer is sprayed, and the sprinkling irrigation is carried out layer by layer; the epoxy mortar 3 is required to be completely coated with the fixed carbon fiber mesh cloth, and the thickness of the epoxy mortar 3 is 5-30 mm;
(6) after the spraying operation is finished, the thickness detection is needed, after the thickness is qualified, the surface of the epoxy mortar 3 is trowelled, and is protected by using asphalt 4, and certainly, other protective coatings can be used besides asphalt;
(7) standing for 7-24 days, curing, and measuring the compressive strength.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (7)
1. A method for reinforcing a pavement by using carbon fiber mesh cloth is characterized by comprising the following steps:
(1) flattening the surface of the road base surface and fixing a carbon fiber mesh cloth;
(2) coating the carbon fiber gridding cloth in the sprinkling irrigation epoxy mortar;
(3) after the epoxy mortar is cured, adding a protective layer on the surface of the epoxy mortar;
(4) standing for 7-24 days and maintaining.
2. The method for reinforcing the pavement with the carbon fiber mesh cloth according to claim 1, wherein: the carbon fiber mesh cloth is tightly attached to the road base surface and fixed.
3. The method for reinforcing a pavement with the carbon fiber mesh cloth according to claim 2, wherein: the thickness of the epoxy mortar is 5-30 mm.
4. A method of reinforcing a pavement with a carbon fiber mesh cloth according to any one of claims 1 to 3, wherein: and 2, carrying out layered spray irrigation on the epoxy mortar, embedding or immersing the carbon fiber gridding cloth into the epoxy mortar during spray irrigation of the first layer, and then spraying and irrigating a second layer to cover the first layer, so that the spray irrigation is carried out layer by layer.
5. A method of reinforcing a pavement with a carbon fiber mesh cloth according to any one of claims 1 to 3, wherein: and (4) after spraying the epoxy mortar, troweling the surface of the epoxy mortar.
6. A method of reinforcing a pavement with a carbon fiber mesh cloth according to any one of claims 1 to 3, wherein: the protective layer comprises asphalt or protective paint.
7. A method of reinforcing a pavement with a carbon fiber mesh cloth according to any one of claims 1 to 3, wherein: before the step 1, a high-pressure water gun is used for roughening and cleaning the road base surface, and chamfering and rounding sharp turns or damaged parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010032205.3A CN111188238A (en) | 2020-01-13 | 2020-01-13 | Method for reinforcing pavement by using carbon fiber mesh cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010032205.3A CN111188238A (en) | 2020-01-13 | 2020-01-13 | Method for reinforcing pavement by using carbon fiber mesh cloth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111188238A true CN111188238A (en) | 2020-05-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010032205.3A Pending CN111188238A (en) | 2020-01-13 | 2020-01-13 | Method for reinforcing pavement by using carbon fiber mesh cloth |
Country Status (1)
| Country | Link |
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| CN (1) | CN111188238A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0398117A2 (en) * | 1989-05-16 | 1990-11-22 | Oystein Vennesland | Process for rehabilitating internally reinforced concrete by removal of chlorides |
| EP0844334A1 (en) * | 1996-06-10 | 1998-05-27 | Tonen Corporation | Method for reinforcing an asphalt applied concrete structure |
| CN101100905A (en) * | 2007-07-31 | 2008-01-09 | 上海维固工程实业有限公司 | Reinforcement method for concrete structure |
| CN103061270A (en) * | 2012-12-14 | 2013-04-24 | 北京中交路通科技发展有限公司 | Whitewashing, reinforcing and renovating method for carbon fiber bar bridges and tunnels |
| CN105735668A (en) * | 2016-04-15 | 2016-07-06 | 张家港英华材料科技有限公司 | Building reinforcement structure and building reinforcement method |
-
2020
- 2020-01-13 CN CN202010032205.3A patent/CN111188238A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0398117A2 (en) * | 1989-05-16 | 1990-11-22 | Oystein Vennesland | Process for rehabilitating internally reinforced concrete by removal of chlorides |
| EP0844334A1 (en) * | 1996-06-10 | 1998-05-27 | Tonen Corporation | Method for reinforcing an asphalt applied concrete structure |
| CN101100905A (en) * | 2007-07-31 | 2008-01-09 | 上海维固工程实业有限公司 | Reinforcement method for concrete structure |
| CN103061270A (en) * | 2012-12-14 | 2013-04-24 | 北京中交路通科技发展有限公司 | Whitewashing, reinforcing and renovating method for carbon fiber bar bridges and tunnels |
| CN105735668A (en) * | 2016-04-15 | 2016-07-06 | 张家港英华材料科技有限公司 | Building reinforcement structure and building reinforcement method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200522 |
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| RJ01 | Rejection of invention patent application after publication |