CN114262190B - Municipal road reinforcing anti-cracking foundation and construction method thereof - Google Patents
Municipal road reinforcing anti-cracking foundation and construction method thereof Download PDFInfo
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Abstract
The application relates to the field of municipal roads, and particularly discloses a municipal road reinforcement anti-cracking foundation and a construction method thereof, wherein the municipal road reinforcement anti-cracking foundation comprises a plain soil layer, a first elastic reinforcing mesh, an anti-cracking concrete layer, a second elastic reinforcing mesh, a gravel cushion layer and an asphalt concrete surface layer; the anti-cracking concrete layer comprises the following raw materials in parts by weight: 200 portions and 320 portions of Portland cement; 300 portions of fine sand and 440 portions of fine sand; 600 portions of stone and 850 portions of stone; 15-26 parts of polyoxyethylene; 45-80 parts of epoxy phenolic resin; 10-22 parts of tannic acid; 4-8 parts of a dispersing agent; 40-65 parts of admixture; and 155 portions of water. The construction method comprises the following steps: positioning and paying off, excavating a roadbed trench, and paving a plain soil layer, a first elastic reinforcing mesh, an anti-cracking concrete layer, a second elastic reinforcing mesh, a sandstone cushion layer, an asphalt concrete surface layer and road maintenance in sequence from bottom to top. This application has the effect that makes the cracked phenomenon be difficult to appear in the town road.
Description
Technical Field
The application relates to the field of municipal roads, in particular to a municipal road reinforcing anti-cracking foundation and a construction method thereof.
Background
The town road is a road different from the highway, and firstly, the town road needs to consider the arrangement of city pipelines, city green belts, bicycle lanes and the like, and the highway considers the traffic volume and the traffic intensity. Therefore, the municipal roads are more complex than the highways, and the municipal roads are usually arranged in cities, so that the construction process needs to be completed as soon as possible, and urban traffic jam is avoided.
At present, a concrete base layer is mostly adopted as a foundation of a common municipal road, but common concrete is easy to break when being subjected to vibration rolling, and once the concrete base layer breaks and dislocates, the pavement is quickly broken or collapsed, so that the traffic order is influenced, and therefore, the improvement space is provided.
Disclosure of Invention
In order to enable the phenomenon that the municipal road is not prone to fracture, the application provides a municipal road reinforcing anti-cracking foundation and a construction method thereof.
First aspect, the application provides a crack control basis is consolidated to town road adopts following technical scheme:
a municipal road reinforcement anti-cracking foundation comprises a plain soil layer, a first elastic reinforcing mesh, an anti-cracking concrete layer, a second elastic reinforcing mesh, a gravel cushion layer and an asphalt concrete surface layer which are sequentially paved upwards along the vertical direction of a roadbed trench;
the anti-cracking concrete layer comprises the following raw materials in parts by weight:
200 portions and 320 portions of Portland cement;
300 portions of fine sand and 440 portions of fine sand;
600 portions of stone and 850 portions of stone;
15-26 parts of polyoxyethylene;
45-80 parts of epoxy phenolic resin;
10-22 parts of tannic acid;
4-8 parts of a dispersing agent;
40-65 parts of admixture;
and 155 portions of water.
By adopting the technical scheme, the polyoxyethylene, the epoxy phenolic resin and the tannic acid are adopted to form a uniform and stable complex, so that the tensile strength of the anti-cracking concrete is improved, the anti-cracking concrete is not easy to crack, and under the buffer action of the first elastic reinforcing mesh, the structural stability of the anti-cracking concrete is better, so that the sandstone cushion layer and the asphalt concrete surface layer are stably supported, and the municipal road is not easy to crack;
in addition, the polyoxyethylene, the epoxy phenolic resin and the tannic acid are matched with each other, the bonding force between the anti-cracking concrete and the first elastic reinforcing mesh is favorably improved, the anti-cracking concrete is not easy to separate from the first elastic reinforcing mesh when being under large pressure, and therefore the anti-cracking concrete is not easy to break, and the municipal road is not easy to collapse.
Preferably, the raw materials of the anti-cracking concrete layer further comprise the following components in parts by weight:
16-26 parts of polystyrene sulfonic acid;
5-15 parts of polymethyl methacrylate.
Through adopting above-mentioned technical scheme, adopt polystyrene sulfonic acid and polymethyl methacrylate cooperateing mutually for the stable complex recombination that polyoxyethylene, epoxy phenolic resin and tannic acid formed forms new even and stable network structure, make the inner structure of crack control concrete inseparabler, with this compressive strength who makes the crack control concrete improves, and simultaneously, new network structure makes the elastic modulus reinforcing of crack control concrete, thereby make the crack control concrete be difficult to appear the phenomenon of fracture.
Preferably, the raw materials of the anti-cracking concrete layer further comprise the following components in parts by weight:
3-9 parts of calcium nitrite.
By adopting the technical scheme, nitrite ions in the calcium nitrite can be adsorbed on the surface of the first elastic reinforcing mesh, so that the free energy of the system is reduced, the passivation process of the first elastic reinforcing mesh is easier, the surface of the first elastic reinforcing mesh is not easy to corrode, the bonding force between the anti-cracking concrete and the first elastic reinforcing mesh is further enhanced, and the anti-cracking concrete is not easy to break; meanwhile, the elastic modulus of the anti-cracking concrete is improved, so that the anti-cracking concrete is not easy to crack when being subjected to larger pressure, and therefore, the gravel cushion layer and the asphalt concrete surface layer are better supported, and the pavement is favorably reinforced.
Preferably, the admixture comprises one or more of fly ash, silica fume, limestone powder and zeolite powder.
Through adopting above-mentioned technical scheme, adopt one or more in the above-mentioned as the admixture, be favorable to improving the compressive strength and the tensile strength of crack control concrete for cracked phenomenon is difficult to appear in the crack control concrete, thereby makes crack control concrete support gravel bed course and asphalt concrete surface course better, makes the road surface of town road difficult fracture with this.
Preferably, the admixture is formed by mixing fly ash and silica fume in a mass ratio of 1.4: 2-4.
Through adopting above-mentioned technical scheme, fly ash and the silica fume that adopt specific proportion to mix to obtain mutually support are favorable to improving the workability of crack control concrete for grit in the crack control concrete is difficult to separate with cement, makes crack control concrete mix more evenly from this, thereby makes crack control concrete's compressive strength improve, makes the phenomenon of slumping difficult to appear in town road's road surface with this.
Preferably, the dispersing agent is one or more of hexenyl bis stearamide, glycerol monostearate, sodium polyacrylate and polyethylene wax.
Through adopting above-mentioned technical scheme, adopt one or more among the above-mentioned as the dispersant, not only make the crack control concrete more even mixedly, and then make the tensile strength of crack control concrete improve to be difficult to the condition of breaking off when making the crack control concrete receive great pressure, so that the road surface of town road is difficult to collapse.
In a second aspect, the application provides a construction method for a municipal road reinforcing and anti-cracking foundation, which adopts the following technical scheme:
a construction method of a municipal road reinforced anti-cracking foundation comprises the following steps:
s1: positioning and paying off, and determining a road center line;
s2: digging a road foundation groove, digging soil and a stone, rolling and tamping, then paving a plain soil layer, and rolling and tamping;
s3: laying a first elastic reinforcing mesh: paving a first elastic reinforcing mesh on the surface of the tamped plain soil layer;
s4: laying an anti-cracking concrete layer: uniformly pre-mixing portland cement, fine sand, stone, polyoxyethylene, epoxy phenolic resin, tannic acid, a dispersing agent, an admixture and water to obtain a mixture, uniformly pouring the mixture on a first elastic reinforcing mesh, completely covering the first elastic reinforcing mesh to form an anti-cracking concrete layer, and paving and tamping the surface of the anti-cracking concrete layer;
s5: laying a second elastic reinforcing mesh: after the anti-cracking concrete layer is solidified, laying a second elastic reinforcing mesh on the surface of the anti-cracking concrete layer;
s6: paving a sandstone cushion layer: paving gravels on the surface of the second elastic reinforcing mesh to form a gravel cushion layer, and paving and tamping the surface of the gravel cushion layer;
s7: paving an asphalt concrete surface layer: concrete and asphalt are poured on the surface of the gravel cushion layer to form an asphalt concrete surface layer, and then the asphalt concrete surface layer is paved and tamped;
s8: road maintenance: covering a thin film on the surface of the asphalt concrete surface layer, then watering and maintaining, keeping the pavement wet, and maintaining for 9-16 days.
By adopting the technical scheme, during construction, firstly positioning and paying off are carried out, and the central point of a construction road is determined, so that when a worker excavates a foundation trench of a road, an excavation site can be accurately determined; the method comprises the following steps of laying a plain soil layer, rolling and dynamic compaction, compacting and flattening the plain soil layer, achieving certain compactness, reducing the occurrence of uneven settlement, and enabling the anti-cracking concrete layer to be not easy to crack when being under large pressure due to the fact that the first elastic reinforcing mesh has a certain buffering effect.
Preferably, the side walls of the roadbed trench are further paved with side elastic reinforcing meshes, and the side elastic reinforcing meshes, the first elastic reinforcing meshes and the second elastic reinforcing meshes form a reinforcing frame.
Through adopting above-mentioned technical scheme, lay side elastic reinforcement net at the lateral wall of road bed groove for the condition that the crack control concrete layer is more difficult to take place to split when receiving great pressure, and then make crack control concrete layer support gravel bed course and asphalt concrete surface course better, thereby make the road surface be difficult to the phenomenon that the appearance collapses.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through adopting polyoxyethylene, epoxy phenolic resin and tannic acid to mutually support, not only be favorable to improving the tensile strength of crack control concrete, still make the adhesion strength reinforcing between crack control concrete and the first elastic reinforcement net to this makes the crack control concrete be difficult to appear cracked phenomenon, and then makes the road surface be difficult to collapse.
2. The synergistic cooperation of the polystyrene sulfonic acid and the polymethyl methacrylate is favorable for improving the compressive strength of the anti-cracking concrete, and the elastic modulus of the anti-cracking concrete is enhanced, so that the anti-cracking concrete stably supports the gravel cushion layer and the asphalt concrete surface layer.
3. By adopting the construction method for reinforcing the anti-cracking foundation of the municipal road, the operation is simple and convenient, the pavement is well reinforced, and the pavement is not easy to break.
Drawings
FIG. 1 is a sectional view of a town road reinforcement crack control basis of this application.
In the figure: 1. a roadbed trench; 2. a plain soil layer; 3. a first elastic reinforcing mesh; 4. an anti-cracking concrete layer; 5. a second elastic reinforcing mesh; 6. a sandstone cushion layer; 7. an asphalt concrete surface course; 8. side elastic reinforcing mesh.
Detailed Description
The present application will be described in further detail with reference to examples.
The sources of the raw materials used in the following examples and comparative examples are shown in Table 1, and all of them are commercial products except for those shown in the following tables.
TABLE 1
Example 1
The embodiment discloses a municipal road reinforcing anti-cracking foundation which comprises a plain soil layer 2, a first elastic reinforcing mesh 3, an anti-cracking concrete layer 4, a second elastic reinforcing mesh 5, a gravel cushion layer 6 and an asphalt concrete surface layer 7, wherein the plain soil layer 2, the first elastic reinforcing mesh 3, the anti-cracking concrete layer 4, the second elastic reinforcing mesh 5, the gravel cushion layer 6 and the asphalt concrete surface layer 7 are sequentially paved upwards along the vertical direction of the bottom wall of a roadbed trench 1;
the raw materials of the anti-cracking concrete layer 4 comprise the following components in parts by weight:
200kg of Portland cement; 440kg of fine sand; 650kg of stones; 15kg of polyoxyethylene; 56kg of epoxy phenolic resin; 22kg of tannic acid; 4kg of dispersing agent; 57kg of admixture; 100kg of water.
In this example, the dispersant is magnesium carbonate and the admixture is steel slag powder.
The embodiment also discloses a construction method of the municipal road reinforced anti-cracking foundation, which comprises the following steps:
s1: positioning and paying off, and determining a road center line;
s2: according to a design drawing, excavating a road foundation trench 1 along the extending direction of the road design, excavating earth and stone, rolling and tamping, paving a plain soil layer 2, and rolling and tamping;
s3: laying the first elastic reinforcing mesh 3: laying a first elastic reinforcing mesh 3 on the surface of the tamped plain soil layer 2, wherein the length and the width of the first elastic reinforcing mesh 3 are designed according to the size of a road, then laying a side elastic reinforcing mesh 8 on the side wall of the roadbed trench 1, and binding the side elastic reinforcing mesh 8 and the first elastic reinforcing mesh 3 together;
s4: laying an anti-cracking concrete layer 4: uniformly mixing portland cement, fine sand, stone, polyoxyethylene, epoxy phenolic resin, tannic acid, a dispersing agent, an admixture and water in advance to obtain a mixture, uniformly pouring the mixture on a first elastic reinforcing mesh 3, forming an anti-cracking concrete layer 4 after the first elastic reinforcing mesh 3 is completely covered, and then paving and tamping the surface of the anti-cracking concrete layer 4;
s5: laying a second elastic reinforcing mesh 5: after the anti-cracking concrete layer 4 is solidified, laying a second elastic reinforcing mesh 5 on the surface of the anti-cracking concrete layer, and binding the second elastic reinforcing mesh 5 and the side elastic reinforcing meshes 8 together;
s6: paving a sandstone cushion layer 6: paving gravels on the surface of the second elastic reinforcing mesh 5 to form a gravel cushion layer 6, and paving and tamping the surface of the gravel cushion layer 6;
s7: paving an asphalt concrete surface layer 7: concrete and asphalt are poured on the surface of the sandstone cushion layer 6 to form an asphalt concrete surface layer 7, and then the asphalt concrete surface layer is paved and tamped;
s8: road maintenance: covering a plastic film on the surface of the asphalt concrete surface layer 7, then watering for curing, watering 3 times per day to keep the pavement moist, and curing for 9-16 days.
Example 2
The difference from example 1 is that:
the raw materials of the anti-cracking concrete layer 4 comprise the following components in parts by weight:
320kg of Portland cement; 355kg of fine sand; 600kg of stones; 20kg of polyoxyethylene; 80kg of epoxy phenolic resin; 10kg of tannic acid; 8kg of dispersing agent; 65kg of admixture; 139kg of water.
Example 3
The difference from example 1 is that:
the raw materials of the anti-cracking concrete layer 4 comprise the following components in parts by weight:
280kg of Portland cement; 300kg of fine sand; 850kg of stones; 26kg of polyoxyethylene; 45kg of epoxy phenolic resin; 18kg of tannic acid; 7kg of dispersing agent; 40kg of admixture; 155kg of water.
Example 4
The difference from example 3 is that: firstly, 16kg of polystyrene sulfonic acid and 15kg of polymethyl methacrylate are uniformly mixed, and then the mixture is added into S4 to be uniformly mixed with the mixture.
Example 5
The difference from example 3 is that: 26kg of polystyrene sulfonic acid and 5kg of polymethyl methacrylate are mixed uniformly in advance, and then added into S4 to be mixed uniformly with the mixture.
Example 6
The difference from example 5 is that: the polymethyl methacrylate was replaced with an equal amount of polystyrene sulfonic acid.
Example 7
The difference from example 5 is that: polystyrene sulfonic acid was replaced with an equal amount of polymethyl methacrylate.
Example 8
The difference from example 3 is that: 9kg of calcium nitrite is also added into S4 as a raw material to be uniformly mixed with other components.
Example 9
The difference from example 3 is that: the admixture is formed by mixing fly ash and silica fume according to the mass ratio of 1.4:3, and the dispersant is hexenyl bis stearamide.
Example 10
The difference from example 3 is that: firstly, 26kg of polystyrene sulfonic acid and 5kg of polymethyl methacrylate are uniformly mixed, and then are added into S4 to be uniformly mixed with the mixture; 9kg of calcium nitrite is also added into the S4 as a raw material to be uniformly mixed with other components; the admixture is formed by mixing fly ash and silica fume according to the mass ratio of 1.4:3, and the dispersant is hexenyl bis stearamide.
Comparative example 1
The difference from example 3 is that: tannic acid was not added in S4.
Comparative example 2
The difference from example 3 is that: no polyoxyethylene was added in S4.
Comparative example 3
The difference from example 3 is that: no epoxy novolac resin was added to S4.
Comparative example 4
The difference from example 3 is that:
the raw materials of the anti-cracking concrete layer 4 comprise the following components in parts by weight:
150kg of Portland cement; 500kg of fine sand; 480kg of stones; 26kg of polyoxyethylene; 100kg of epoxy phenolic resin; 5kg of tannic acid; 0kg of dispersing agent; 40kg of admixture; 88kg of water.
Comparative example 5
The difference from example 3 is that:
the raw materials of the anti-cracking concrete layer 4 comprise the following components in parts by weight:
400kg of Portland cement; 250kg of fine sand; 910kg of stones; 30kg of polyoxyethylene; 45kg of epoxy phenolic resin; 15kg of tannic acid; 7kg of dispersing agent; 72kg of admixture; 169kg of water.
In the experiment, the 28d compressive strength (MPa) of the anti-cracking concrete layer 4 prepared in the embodiment and the proportion is respectively detected according to a cubic compressive strength test of 4.2 concrete in SL352-2006 Hydraulic concrete test Specification. The higher the compressive strength, the less likely the anti-cracking concrete will crack.
Experiment 2
In the experiment, the 28d tensile strength (MPa) of the anti-cracking concrete layer 4 prepared in the embodiment and the comparative example is respectively detected according to the 4.3 concrete splitting tensile strength test in SL352-2006 Hydraulic concrete test Specification. The higher the tensile strength, the less likely the anti-cracking concrete layer 4 is to break.
Experiment 3
In the experiment, the bond strength (MPa) of the anti-cracking concrete prepared in the embodiment and the proportion to the steel bar is respectively detected according to the bond strength test of the concrete and the steel bar of 4.9 in SL352-2006 Hydraulic concrete test Specification. The higher the bond strength, the higher the adhesion between the anti-cracking concrete and the steel bar.
Experiment 4
According to a static compression elastic modulus test in GB/T50081-2002 standard on mechanical property test method of common concrete 8, the experiment respectively detects the elastic modulus (MPa) of the anti-cracking concrete layer 4 prepared in the embodiment and the proportion. The larger the elastic modulus is, the less the anti-cracking concrete layer 4 is deformed.
The data from the above experiments are shown in Table 2.
TABLE 2
According to the comparison between comparative examples 1-3 in table 2 and the data of example 3, respectively, it can be seen that in example 3, tannic acid is newly added on the basis of comparative example 1, polyoxyethylene is newly added on the basis of comparative example 2, epoxy phenolic resin is newly added on the basis of comparative example 3, the tensile strength of the anti-cracking concrete layer 4 is basically similar and the bond strength is basically similar in comparative examples 1-3, while in example 3, polyoxyethylene, epoxy phenolic resin and tannic acid are simultaneously added, the tensile strength of the anti-cracking concrete layer 4 is increased from about 1.1MPa to 1.94MPa, the bond strength is increased from about 10MPa to 16.3MPa, which shows that only by simultaneously adding polyoxyethylene, epoxy phenolic resin and tannic acid to cooperate with each other, the tensile strength of the anti-cracking concrete layer 4 can be increased, and the binding force between the anti-cracking concrete and the reinforcing mesh can be increased, the polyoxyethylene, the epoxy phenolic resin and the tannin are matched with each other to form a uniform and stable complex, so that the tensile strength of the anti-cracking concrete layer 4 is improved, and the anti-cracking concrete is not easy to break.
According to the comparison of the data of examples 4 to 7 in table 2 with the data of example 3, the compression strength of the anti-cracking concrete layer 4 in examples 6 to 7 is almost the same as that in example 3, and the elastic modulus is reduced, in example 6, the polystyrene sulfonic acid is added on the basis of example 3, and the polymethyl methacrylate is added on the basis of example 3, in example 7. In the embodiment 4, the polystyrene sulfonic acid and the polymethyl methacrylate are added on the basis of the embodiment 3, the compressive strength of the anti-cracking concrete layer 4 is increased from 35.6MPa to about 53MPa, and the elastic modulus is increased from 2.53 multiplied by 10 4 The MPa is increased to 2.8 multiplied by 10 4 About MPa, which indicates that the addition of the polystyrene sulfonic acid and the polymethyl methacrylate simultaneously is not only beneficial to improving the compressive strength of the anti-cracking concrete layer 4, but also enables the elastic modulus of the anti-cracking concrete layer 4 to be improved, and any substance added separately does not have the above effects.
According to the comparison between the data of the example 8 and the data of the example 3 in the table 2, the bond strength of the anti-cracking concrete is increased from 16.3MPa to 18.7MPa and the elastic modulus is increased from 2.53 multiplied by 10 in the example 8 by adding the calcium nitrite on the basis of the data of the example 3 4 The MPa is increased to 2.75 multiplied by 10 4 The MPa indicates that the addition of calcium nitrite is beneficial to improving the cohesive force between the anti-cracking concrete and the reinforcing steel bars, and also improves the elastic modulus of the anti-cracking concrete layer 4, so that the anti-cracking concrete layer 4 is not easy to generate when being subjected to larger pressureThe deformation further makes the town road be difficult to appear the phenomenon of fracture or collapse.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (6)
1. The utility model provides a crack control basis is consolidated to town road which characterized in that: the anti-cracking concrete pavement structure comprises a plain soil layer (2), a first elastic reinforcing mesh (3), an anti-cracking concrete layer (4), a second elastic reinforcing mesh (5), a sand cushion layer (6) and an asphalt concrete surface layer (7) which are sequentially paved upwards along the vertical direction of a roadbed trench (1);
the raw materials of the anti-cracking concrete layer (4) comprise the following components in parts by weight:
200 portions and 320 portions of Portland cement;
300 portions of fine sand and 440 portions of fine sand;
600 portions of stone and 850 portions of stone;
15-26 parts of polyoxyethylene;
45-80 parts of epoxy phenolic resin;
10-22 parts of tannic acid;
4-8 parts of a dispersing agent;
40-65 parts of an admixture;
100 portions of water and 155 portions;
the anti-cracking concrete layer (4) is prepared from the following raw materials in parts by weight:
3-9 parts of calcium nitrite;
16-26 parts of polystyrene sulfonic acid;
5-15 parts of polymethyl methacrylate.
2. The municipal road reinforcement anti-cracking foundation according to claim 1, which is characterized in that: the admixture comprises one or more of fly ash, silica fume, limestone powder and zeolite powder.
3. The municipal road reinforcement anti-cracking foundation according to claim 2, wherein: the admixture is formed by mixing fly ash and silica fume in a mass ratio of 1.4: 2-4.
4. The municipal road reinforcement anti-cracking foundation according to claim 1, which is characterized in that: the dispersing agent is one or more of hexenyl bis stearamide, stearic acid monoglyceride, sodium polyacrylate and polyethylene wax.
5. The construction method of the municipal road reinforced anti-cracking foundation as claimed in any one of claims 1 to 4, wherein the construction method comprises the following steps: the method comprises the following steps:
s1: positioning and paying off, and determining a road center line;
s2: digging a road foundation groove (1), digging soil and stone, rolling and tamping, then laying a plain soil layer (2), and rolling and tamping;
s3: laying a first elastic reinforcing mesh (3): paving a first elastic reinforcing mesh (3) on the surface of the tamped plain soil layer (2);
s4: laying an anti-cracking concrete layer (4): uniformly mixing portland cement, fine sand, stone, polyoxyethylene, epoxy phenolic resin, tannic acid, a dispersing agent, an admixture, calcium nitrite and water in advance to obtain a mixture 1, uniformly mixing polystyrene sulfonic acid and polymethyl methacrylate in advance, uniformly mixing the mixture 1 with the mixture 2 to obtain a mixture 2, uniformly pouring the mixture 2 on a first elastic reinforcing mesh (3), completely covering the first elastic reinforcing mesh (3) to form an anti-cracking concrete layer (4), and paving and tamping the surface of the anti-cracking concrete layer (4);
s5: laying a second elastic reinforcing mesh (5): after the anti-cracking concrete layer (4) is solidified, laying a second elastic reinforcing mesh (5) on the surface of the anti-cracking concrete layer;
s6: paving a sandstone cushion layer (6): paving gravels on the surface of the second elastic reinforcing steel bar mesh (5) to form a gravel cushion layer (6), and then paving and tamping the surface of the gravel cushion layer (6);
s7: paving an asphalt concrete surface layer (7): concrete and asphalt are poured on the surface of the gravel cushion layer (6) to form an asphalt concrete surface layer (7), and then the asphalt concrete surface layer is paved and tamped;
s8: road maintenance: covering a thin film on the surface of the asphalt concrete surface layer (7), then watering and curing, keeping the pavement wet, and curing for 9-16 days.
6. The construction method of the municipal road reinforced anti-cracking foundation according to claim 5, characterized in that: the side wall of the roadbed trench (1) is further paved with a side elastic reinforcing mesh (8), and the side elastic reinforcing mesh (8), the first elastic reinforcing mesh (3) and the second elastic reinforcing mesh (5) form a reinforcing frame.
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