CN116219849A - Road surface reflection crack repairing technology - Google Patents
Road surface reflection crack repairing technology Download PDFInfo
- Publication number
- CN116219849A CN116219849A CN202310206262.2A CN202310206262A CN116219849A CN 116219849 A CN116219849 A CN 116219849A CN 202310206262 A CN202310206262 A CN 202310206262A CN 116219849 A CN116219849 A CN 116219849A
- Authority
- CN
- China
- Prior art keywords
- grouting
- pavement
- crack
- injection
- repair
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/07—Apparatus combining measurement of the surface configuration of paving with application of material in proportion to the measured irregularities
-
- 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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
- E01C23/096—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating and filling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Abstract
The invention relates to the field of road repair and discloses a road reflection crack repair process. First, pavement defect detection is carried out. Secondly, selecting a pavement maintenance process; when the void board is detected, the high polymer solid board is repaired on the road surface, and then the slotting backfill repair is carried out on the crack; and when the void board does not appear, directly carrying out slotting backfilling repair on the crack. Wherein, the high polymer solid plate repair comprises the following steps: s1, drilling holes; s2, placing a grouting pipe; s3, injecting grouting materials; s4, repairing and detecting; s5, hole sealing. The invention treats the base layer void board in a mode of combining high polymer grouting, has the advantages of convenient and quick construction and short maintenance time, can solve the problem of repeated pain points of reflective cracks, and can avoid bad influence on society caused by long construction period of the overhaul base layer.
Description
Technical Field
The invention relates to the field of road repair, in particular to a road reflection crack repair process.
Background
With the development of the age, the white-to-black engineering of the road surface is becoming more and more popular. The white-to-black road construction term is to change the original cement concrete pavement (grey-white) into the asphalt concrete pavement (black), thereby achieving the effects of environmental protection, dust prevention, noise reduction and driving comfort enhancement. However, when tensile stress generated by concrete displacement exceeds the tensile strength of the asphalt overcoat, the overcoat cracks, which are called reflective cracks. It often occurs in the road surface 'white to black' engineering.
In order to solve the problem of reflection cracks of the road surface from white to black; the existing treatment technology mainly comprises the following steps: slotting and pouring, joint pasting and band-shaped digging and repairing modes or combination use is carried out. The crack is detected through the ground penetrating radar, the damage of obvious deformation, cement and the like after the crack is treated is thoroughly treated by adopting a band-shaped digging and repairing mode, the damaged base layer is backfilled by adopting a large-particle-size water-permeable asphalt mixture, the surface layer is repaired by adopting the same material as the original asphalt surface layer, and longitudinal and transverse drainage treatment measures are taken. The severe local block cracking and the crazing are carried out according to the pit repairing mode.
However, the existing reflection crack treatment technology has the following problems: 1. when detecting the road surface problem point, use ground penetrating radar to detect, ground penetrating radar receives other interference easily, leads to detecting inaccuracy, and the cost is also higher simultaneously. 2. The maintenance effect is general, can not once only repair, and after the maintenance, the problem repeatedly occurs. 3. The base layer is overhauled under the condition of damaging the base layer, and the long construction period causes adverse effects on society.
Disclosure of Invention
The invention aims to solve the problems of repeated occurrence of pavement maintenance problems and long construction period, and provides a pavement reflection crack maintenance process, which is used for treating a base layer void board in a mode of combining high polymer grouting and has the advantages of convenience and rapidness in construction and short maintenance time, so that the problem of repeated occurrence of reflection cracks can be solved, and adverse effects on society caused by long construction period of a overhaul base layer can be avoided.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the invention discloses a road surface reflection crack repairing process, which sequentially comprises an asphalt layer, a cement concrete layer and a base layer from top to bottom; the method is characterized in that:
firstly, detecting pavement defects;
secondly, selecting a pavement maintenance process; when the void board is detected, the high polymer solid board is repaired on the road surface, and then the slotting backfill repair is carried out on the crack; when the void board does not appear, directly carrying out slotting backfilling repair on the crack;
the high polymer solid plate repairing method comprises the following steps:
s1, drilling: drilling a plurality of grouting holes in the asphalt layer, wherein the depth H of the grouting holes is not smaller than the thickness H1 of the asphalt layer and the thickness H2 of the cement concrete layer;
s2, placing a grouting pipe: placing the grouting pipe into the grouting hole and lowering the grouting pipe into the middle of the base layer;
s3, injecting grouting materials: delivering grouting material to the middle of the base layer through a grouting pipe; the grouting material is a non-aqueous reaction self-expansion closed-cell polymer material;
s4, repairing and detecting: performing deflection detection on the repaired pavement, judging whether the repaired pavement meets the repair standard, and if the repaired pavement meets the requirements, completing grouting; if the requirement is not met, the supplementary injection is needed, and the supplementary injection method is consistent with the step S3 until the requirement is met; the repair criteria are: the deflection delta D is less than or equal to 0.06mm, and the deflection of the pavement is less than or equal to 0.2mm;
s5, hole sealing: and sealing the grouting holes by using road sealant, wherein the sealant is not higher than the road surface.
Further, the pavement defect detection method comprises the following steps: performing deflection detection on the reflection cracks; when deflection delta D is more than or equal to 0.10mm or the deflection of the pavement is more than 0.26mm, the void board is judged.
Further, in the step S1 of drilling, grouting holes are marked before drilling, cracks are positioned in the middle of the grouting holes, and the longitudinal adjacent spacing and the transverse adjacent spacing of the grouting holes are uniformly arranged at 1.0-1.5 m; determining the thickness h1 of the asphalt layer and the thickness h2 of the cement concrete layer through on-site core drilling sampling; the grouting holes are vertically arranged, and the hole position error is not more than 0.05m.
In the step of injecting the grouting material, before injecting the grouting material, an injection cap is arranged on the grouting pipe, the concave edge of the injection cap is cleaned, and the cleaned injection cap is knocked into the grouting pipe; the grouting cap is tightly combined with the grouting pipe and is not loosened;
the raw materials of the non-aqueous reaction self-expansion closed-cell high polymer material are a double-component liquid prepolymer, namely a material A and a material B, the density of the grouting material is 0.2-0.3 g/cm < 3 >, the corresponding compressive strength is 3-5 MPa, and the tensile strength is 2-4 MPa;
during injection, the injection gun is clamped with the injection cap firmly, and when the injection gun is injected, the proportioning instrument respectively conveys the material A and the material B to the injection gun port for mixing through the material conveying pipeline according to the proportion of 1:1, and conveys the materials A and the materials B to the base layer void plate through the grouting pipe; grouting pressure is 7MPa-8MPa; after the grouting material overflows, closing the safety of the injection gun, waiting for 15-20 seconds, and separating the injection gun from the injection cap.
In the step of S4 repair and detection, before detection, the grouting cap is removed, the grouting pipe exposing the pavement is cut off, and after grouting is carried out by using FWD or GPR, detection is carried out, and whether the repair standard is reached is judged.
In the step of S5 hole sealing, the sealant is heated before sealing, and the heating temperature is below 210 ℃.
Further, the grouting pipe is a PVC pipe, and the injection cap is a copper cap or an iron cap.
Further, the method also comprises S6, an environmental cleaning step, which comprises the following steps: after hole sealing, an iron brush is used for treating grouting holes and polluted road surfaces, a broom is used for cleaning a construction operation area, and then a blower is used for cleaning; the wet rag is used for cleaning the mud water removing place, and finally the road surface pollution place is treated.
Further, the slotting backfill repair comprises the following steps:
p1, slotting: slotting at two sides of the crack, and digging out an asphalt layer; the grooving width is 0.5-0.6m, and the grooving depth is the thickness of the whole asphalt surface layer;
p2, cleaning and pouring the seams: cleaning the top surface of the cement panel after slotting, and cleaning and pouring the seam; the crack filling material is adhesive asphalt;
p4, sticking an anti-cracking paste: paving an anti-cracking paste for a road on the top surface of the cement panel;
p5, backfilling the AC-20 modified asphalt mixture: backfilling the AC-20 modified asphalt mixture above the anti-cracking paste, wherein the height difference between the surface layer of the AC-20 modified asphalt and the surface of the pavement is 4-6cm;
p6, paving an SMA-13 modified asphalt overlay: and (3) paving an SMA-13 modified asphalt overlay on the surface layer of the AC-20 modified asphalt, wherein the surface of the SMA-13 modified asphalt overlay is the same as the surface of the pavement in height.
Further, in the step P2, the crack pouring depth is not less than 5cm.
The invention has the advantages that:
1. the invention treats the base layer void board by combining the high polymer grouting on the basis of the conventional reflection crack surface layer treatment, and the pavement 'white-to-black' reflection crack treatment technology has the advantages of convenience and rapidness in construction, short maintenance time and the like, can solve the pain points of repeated occurrence of reflection cracks, and can avoid the bad influence on society caused by long construction period of the overhaul base layer.
2. The invention judges the void condition of the white-to-black composite pavement through deflection difference and deflection detection, and the detection instrument is a conventional Beckman beam deflection instrument, so that the invention has the advantages of low detection cost, difficult interference and the like compared with the detection of a ground penetrating radar.
Drawings
FIG. 1 is a schematic diagram of a polymer solid plate repair according to the present invention.
FIG. 2 is a schematic illustration of the present invention after grooving, clearance, and caulking steps.
FIG. 3 is a schematic illustration of the present invention after an anti-crack patch has been applied and backfilled with an AC-20 modified asphalt mixture.
FIG. 4 is a schematic representation of the invention after the step of applying an SMA-13 modified asphalt overlay.
Description of main reference numerals:
1. grouting holes;
2. an asphalt layer;
3. a cement concrete layer;
4. a base layer;
5. cracking;
6. a layer of asphalt;
7. cracking resistance paste;
8. an AC-20 modified asphalt mixture;
9. SMA-13 modified asphalt overlay.
Detailed Description
In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 4, the invention discloses a repairing process for reflection cracks of a pavement, wherein the pavement sequentially comprises an asphalt layer, a cement concrete layer and a base layer from top to bottom.
The repairing process comprises the following steps: pavement defect detection, high polymer solid plate treatment and slotting backfill repair.
Before construction, pavement defect detection is carried out firstly, and the detection method comprises the following steps: performing deflection detection on the reflection crack 5 by using a Beckman beam deflection instrument; when the deflection delta D is more than or equal to 0.10mm or the deflection of the pavement is more than 0.26mm, the void board can be judged, the high polymer solid board repair is needed, and the slotting backfill repair is carried out after the construction is finished; otherwise, only grooving backfilling repair is needed.
And repairing the high polymer solid plate into high polymer solid plate treatment on the released base layer 4 plate.
The slotting backfill repair is to perform slotting backfill repair on the reflection crack 5 of the surface layer.
As shown in fig. 1, the operation steps of the high polymer solid plate repair are as follows:
s1, drilling:
drilling holes at the marked grouting hole 1 by using an impact drill to the designed depth according to the designed drilling depth, wherein the designed depth H=the thickness h1 of the asphalt layer 2 and the thickness H2 of the cement concrete layer 3, and the specific thickness is determined according to on-site core drilling sampling. The drilling is required to be vertical, the hole position error is not more than 0.05m, and the drilling depth cannot be smaller than the design depth. The longitudinal adjacent spacing and the transverse adjacent spacing of the grouting holes 1 are uniformly arranged at 1.0-1.5 m, and the crack 5 is positioned between two adjacent grouting holes 1. In this embodiment, the lateral adjacent pitch is 1.5m, and the longitudinal adjacent pitch is 1m. D=0.5 m and s=1.5 m in the figure.
S2, placing a grouting pipe: cutting the grouting pipe according to the corresponding length by using a cutting tool, and lowering the grouting pipe into the grouting hole 1 to the designed depth. Grouting the base, wherein a grouting pipe is required to be arranged in the middle of the base layer 4; deep grouting requires that the grouting pipe be lowered to the disease position. The grouting pipe is a PVC pipe.
S3, installing an injection cap: the concave edge of the injection cap is cleaned by a special tool so as to be better combined with the injection gun, and the cleaned injection cap is knocked into the PVC grouting pipe by an iron hammer. The grouting cap and the grouting pipe are required to be tightly combined and cannot loosen, otherwise, the grouting pipe is replaced.
S4, injecting grouting materials: the grouting material adopts a non-aqueous reaction self-expansion closed-cell polymer material special for road grouting and can be purchased from the market. The raw materials are double-component liquid prepolymers, namely a material A and a material B, the density of the grouting body is 0.2-0.3 g/cm < 3 >, the corresponding compressive strength is 3-5 MPa, the tensile strength is 2-4 MPa, and the technical indexes of the other materials meet the related technical standard requirements of polyurethane grouting materials (JC/T2041-2010) and the like.
And during injection, grouting is performed according to the designed or on-site determined grouting amount. The injection gun is clamped with the injection cap firmly by using a clamp, grouting materials are respectively conveyed to the injection muzzle by the proportioning instrument according to the proportion of 1:1 through the conveying pipeline, and two prepolymer materials (namely A material and B material) are mixed at the injection muzzle and conveyed to the lesion through the grouting pipe. After the two materials are subjected to chemical reaction rapidly, the volume of the two materials is expanded and solidified, so that the effects of filling and emptying, draining accumulated water, reinforcing a loose area or a weak area, lifting a subsided pavement and rapidly treating pavement diseases are achieved. Grouting pressure is controlled according to design requirements and can be set to be 7MPa generally. After the slurry overflows, the injection gun is required to be closed immediately, and the injection gun and the injection cap can be separated after waiting for 15 seconds.
S5, repairing and detecting: and removing the grouting cap by using a special tool after grouting, and cutting off the grouting pipe exposing the pavement after 15-20 minutes. Grouting is carried out by utilizing a falling weight deflectometer FWD or a ground penetrating radar GPR, then detection is carried out, grouting maintenance effect is analyzed, and grouting is completed if the requirement is met; if the requirement is not met, the supplementary injection is needed until the requirement is met. The detection method and the detection position are consistent with those before grouting. Wherein, the repair standard is: the deflection delta D is less than or equal to 0.06mm, and the deflection of the pavement is less than or equal to 0.2mm.
S6, hole sealing: in order to prevent rain erosion, destroy the road surface and maintain the overall image of the road surface, the grouting holes 1 are sealed by road sealant. When the sealant is used, the sealant needs to be heated, and the temperature is controlled below 210 ℃. When the sealant is poured, the sealant is slightly under the road surface, and if the sealant is higher than the road surface, the sealant is leveled by using a tool.
S7, cleaning environment: the grouting holes 1 and the polluted road surface are treated by using an iron brush, a construction operation area is cleaned by using a broom, and then the construction operation area is cleaned by using a blower. The wet rag is used for cleaning the mud water removing place, and finally the road surface pollution place is treated.
As shown in fig. 2 to 4, the slotted backfill repair includes the steps of:
p1, slotting: slotting at two sides of the crack 5, and digging out the asphalt layer 2; the grooving width is 0.5-0.6m, and the grooving depth is the thickness of the whole asphalt surface layer.
P2, cleaning and pouring the seams: cleaning the top surface of the cement panel after slotting, and cleaning and pouring the seam; the crack filling material is adhesive layer asphalt 6; the crack filling depth is not less than 5cm.
P4, sticking an anti-cracking patch 7: the top surface of the cement panel is fully paved with an anti-cracking paste 7 for the road. Specifically, before the joint is pasted, the pavement cracks and soil sundries, pollutants, scattered matters and the like within the surface range of 20cm on the two sides of the pavement cracks are cleaned up, no bulges, depressions and looseness are caused, and the flatness of the crack operation surface is ensured. The joint glue is stuck from one end of the crack, the length of the joint glue is not less than the length of the whole crack, and the joint glue is positioned at the middle part of the crack; when the adhesive is in irregular cracks, the adhesive can be broken, and the adhesive can be tracked and stuck according to the trend of the cracks; the joint of the joint glue forms an overlap of 80-100 mm.
P5, backfilling the AC-20 modified asphalt mixture 8: backfilling the AC-20 modified asphalt mixture 8 above the anti-cracking paste 7, wherein the height difference between the surface layer of the AC-20 modified asphalt and the surface of the pavement after compacting is 4-6cm, preferably 4cm.
P6, additionally paving an SMA-13 modified asphalt overlay 9: and (3) paving an SMA-13 modified asphalt overlay 9 on the surface layer of the AC-20 modified asphalt to enable the surface layer to be at the same height as the surface of the pavement.
In conclusion, the invention adopts the conventional Beckman beam deflection instrument to replace ground penetrating radar, and judges the void board through deflection and deflection difference detection, thereby having the advantages of low detection cost, difficult interference and the like. Meanwhile, the invention treats the base layer void board by combining the high polymer grouting mode on the basis of the conventional reflection crack surface layer treatment, has the advantages of convenient and quick construction, short maintenance time and the like, can solve the pain point of repeated occurrence of the reflection crack, and can avoid the bad influence on society caused by long period of overhaul of the base layer.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention.
Claims (10)
1. The road surface reflection crack repairing process comprises an asphalt layer, a cement concrete layer and a base layer from top to bottom in sequence; the method is characterized in that:
firstly, detecting pavement defects;
secondly, selecting a pavement maintenance process; when the void board is detected, the high polymer solid board is repaired on the road surface, and then the slotting backfill repair is carried out on the crack; when the void board does not appear, directly carrying out slotting backfilling repair on the crack;
the high polymer solid plate repairing method comprises the following steps:
s1, drilling: drilling a plurality of grouting holes in the asphalt layer, wherein the depth H of the grouting holes is more than or equal to the thickness H1 of the asphalt layer and the thickness H2 of the cement concrete layer;
s2, placing a grouting pipe: placing the grouting pipe into the grouting hole and lowering the grouting pipe into the middle of the base layer;
s3, injecting grouting materials: delivering grouting material to the middle of the base layer through a grouting pipe; the grouting material is a non-aqueous reaction self-expansion closed-cell polymer material;
s4, repairing and detecting: performing deflection detection on the repaired pavement, judging whether the repaired pavement meets the repair standard, and if the repaired pavement meets the requirements, completing grouting; if the requirement is not met, the supplementary injection is needed, and the supplementary injection method is consistent with the step S3 until the requirement is met; the repair criteria are: the deflection delta D is less than or equal to 0.06mm, and the deflection of the pavement is less than or equal to 0.2mm;
s5, hole sealing: and sealing the grouting holes by using road sealant, wherein the sealant is not higher than the road surface.
2. The pavement reflective crack repair process according to claim 1, wherein: the pavement defect detection method comprises the following steps: performing deflection detection on the reflection cracks; when deflection delta D is more than or equal to 0.10mm or the deflection of the pavement is more than 0.26mm, the void board is judged.
3. The pavement reflective crack repair process according to claim 1, wherein: in the S1 drilling step, grouting holes are marked before drilling, cracks are positioned in the middle of the grouting holes, and the longitudinal adjacent spacing and the transverse adjacent spacing of the grouting holes are uniformly arranged at 1.0-1.5 m; determining the thickness h1 of the asphalt layer and the thickness h2 of the cement concrete layer through on-site core drilling sampling; the grouting holes are vertically arranged, and the hole position error is not more than 0.05m.
4. The pavement reflective crack repair process according to claim 1, wherein: in the step S3 of injecting grouting materials, before injecting grouting materials, an injection cap is arranged on a grouting pipe, firstly, the concave edge of the injection cap is cleaned, and the cleaned injection cap is knocked into the grouting pipe; the grouting cap is tightly combined with the grouting pipe and is not loosened;
the raw materials of the non-aqueous reaction self-expansion closed-cell high polymer material are a double-component liquid prepolymer, namely a material A and a material B, the density of the grouting material is 0.2-0.3 g/cm < 3 >, the corresponding compressive strength is 3-5 MPa, and the tensile strength is 2-4 MPa;
during injection, the injection gun is clamped with the injection cap firmly, and when the injection gun is injected, the proportioning instrument respectively conveys the material A and the material B to the injection gun port for mixing through the material conveying pipeline according to the proportion of 1:1, and conveys the materials A and the materials B to the base layer void plate through the grouting pipe; grouting pressure is 7MPa-8MPa; after the grouting material overflows, closing the safety of the injection gun, waiting for 15-20 seconds, and separating the injection gun from the injection cap.
5. The pavement reflective crack repair process according to claim 1, wherein: in the S4 repairing and detecting step, before detection, the grouting cap is removed, the grouting pipe exposing the pavement is cut off, and after grouting is carried out by using FWD or GPR, detection is carried out, and whether the repairing standard is reached is judged.
6. The pavement reflective crack repair process according to claim 1, wherein: in the step of S5 hole sealing, before sealing, the sealant is heated, and the heating temperature is below 210 ℃.
7. The pavement reflective crack repair process according to claim 1, wherein: the grouting pipe is a PVC pipe, and the injection cap is a copper cap or an iron cap.
8. The pavement reflective crack repair process according to claim 1, wherein: further comprising S6 a clean environment step comprising the steps of: after hole sealing, an iron brush is used for treating grouting holes and polluted road surfaces, a broom is used for cleaning a construction operation area, and then a blower is used for cleaning; the wet rag is used for cleaning the mud water removing place, and finally the road surface pollution place is treated.
9. The pavement reflective crack repair process according to claim 1, wherein: the slotting backfilling repair comprises the following steps:
p1, slotting: slotting at two sides of the crack, and digging out an asphalt layer; the grooving width is 0.5-0.6m, and the grooving depth is the thickness of the whole asphalt surface layer;
p2, cleaning and pouring the seams: cleaning the top surface of the cement panel after slotting, and cleaning and pouring the seam; the crack filling material is adhesive asphalt;
p4, sticking an anti-cracking paste: paving an anti-cracking paste for a road on the top surface of the cement panel;
p5, backfilling the AC-20 modified asphalt mixture: backfilling the AC-20 modified asphalt mixture above the anti-cracking paste, wherein the height difference between the surface layer of the AC-20 modified asphalt and the surface of the pavement is 4-6cm;
p6, paving an SMA-13 modified asphalt overlay: and (3) paving an SMA-13 modified asphalt overlay on the surface layer of the AC-20 modified asphalt, wherein the surface of the SMA-13 modified asphalt overlay is the same as the surface of the pavement in height.
10. The pavement reflective crack repair process according to claim 9, wherein: in the step P2, the crack pouring depth is not less than 5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310206262.2A CN116219849A (en) | 2023-03-06 | 2023-03-06 | Road surface reflection crack repairing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310206262.2A CN116219849A (en) | 2023-03-06 | 2023-03-06 | Road surface reflection crack repairing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116219849A true CN116219849A (en) | 2023-06-06 |
Family
ID=86576574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310206262.2A Pending CN116219849A (en) | 2023-03-06 | 2023-03-06 | Road surface reflection crack repairing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116219849A (en) |
-
2023
- 2023-03-06 CN CN202310206262.2A patent/CN116219849A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100959407B1 (en) | Concrete structure repair work method | |
| CN106321121A (en) | Vibration disturbance resistant crack leaking stoppage and reinforcement method applied to underground works | |
| KR101253598B1 (en) | Method for repairing of paved road of asphalt concrete | |
| CN108642988B (en) | Comprehensive treatment and repair structure for embankment base layer diseases and construction method | |
| CN110644337A (en) | Rapid repairing construction method for airport cement concrete pavement | |
| CN113529549A (en) | Bridge head pavement subsidence nondestructive quantitative detection and trenchless rapid treatment grouting construction method | |
| CN112609553A (en) | Construction method for treating road cracks by using waterborne polyurethane | |
| CN111663385A (en) | Construction method for completing rapid restoration of settlement of integral ballast bed in skylight period | |
| CN203890900U (en) | Structure for quickly restoring hollow slab bridge hinge joint | |
| CN116219849A (en) | Road surface reflection crack repairing technology | |
| CN109082982B (en) | Method for processing semi-rigid base asphalt pavement cracking | |
| KR101044172B1 (en) | Method of repairing construction of sidewalk | |
| CN113265925A (en) | Construction access road structure on mudflat zone and construction method | |
| CN108221715A (en) | A kind of renovation technique of bridge pavement | |
| CN210946345U (en) | High polymer grouting semi-rigid base pavement crack reinforcing and repairing system | |
| CN110374019B (en) | Road and bridge crack reinforcing device and reinforcing method thereof | |
| Liu et al. | Study on cement concrete pavement treatment methods of common damage diseases | |
| CN113564996A (en) | Construction method for directly laying asphalt based on cement pavement | |
| JP6541238B2 (en) | Asphalt pavement removal method | |
| CN105887614A (en) | Asphalt pavement prefabricated block repairing pit slot structure and construction process thereof | |
| CN220619663U (en) | C60 hybrid steel fiber pavement structure | |
| CN218454330U (en) | Collapsible loess area urban road crack maintenance structure | |
| CN217052898U (en) | Construction access road structure on mud flat zone | |
| CN115491945B (en) | Treatment method for reflection crack of white-to-black pavement | |
| Neal et al. | 13 Pavement Defects and Failures You Should Know! |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |