CN110790560A - Permeable sidewalk and construction method thereof - Google Patents
Permeable sidewalk and construction method thereof Download PDFInfo
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- CN110790560A CN110790560A CN201911193238.XA CN201911193238A CN110790560A CN 110790560 A CN110790560 A CN 110790560A CN 201911193238 A CN201911193238 A CN 201911193238A CN 110790560 A CN110790560 A CN 110790560A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
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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
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
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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
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/225—Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
-
- 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
- E01C15/00—Pavings specially adapted for footpaths, sidewalks or cycle tracks
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a permeable sidewalk, which comprises the following components: 100 parts of cement, 100 parts of gypsum powder, 830 parts of aggregate and 950 parts of water reducing agent, 0.1-0.3 part of rubber particles, 4-5 parts of modified epoxy resin, 2-2.5 parts of water permeable agent and 0.3-0.5 part of polypropylene fiber; the construction method comprises the steps of road excavation, graded broken stone laying, material mixing, pouring and the like, and broken stones with different particle sizes are adopted as aggregates, so that the good water permeability can be ensured, and the stable internal structure after forming can be ensured; the cement and the gypsum powder are used as the gel, so that the aggregates can be bonded, and the strength of the pavement can be ensured; increase the compliance on road surface through the rubber granule, increase pavement material's porosity through the penetrant to promote the effect of permeating water, improve the toughness on road surface through modified epoxy and polypropylene fiber, avoid the road surface fracture.
Description
Technical Field
The invention belongs to the technical field of civil engineering materials, relates to a formula of a permeable pavement material, and particularly relates to a permeable sidewalk and a construction method thereof.
Background
With the increasingly accelerated urbanization process, cities are gradually covered by reinforced concrete structures, so that a new problem is caused, on one hand, the original underground water resources below the cities covered by the reinforced concrete structures are continuously consumed, but rainwater cannot permeate due to the fact that the cities are covered by the reinforced concrete structures, the underground water resources cannot be timely supplemented, the cities gradually run to dry, and the cities have the risk of local collapse due to the formed underground cavities; on the other hand, in the existing urban planning, the storage and discharge capacity of rainwater is often estimated to be insufficient, the accumulated water on the road surface of a light person is serious and the urban waterlogging occurs to a heavy person due to the insufficient drainage and pollution discharge capacity of a sewer in rainy season, so that great difficulty is brought to urban environment management.
In recent years, various provinces and cities also invest a great amount of manpower and financial resources to carry out transformation, research and development in aspects of increasing the construction of urban underground drainage pipelines, researching and developing permeable bricks, permeable pavements and the like, and certain achievements are obtained. For example, the Chinese patent with the application number of CN201210176924.8 discloses a high water storage concrete for sidewalks and a preparation method thereof, the high water storage concrete for sidewalks is composed of a cementing material, porous aggregates, water, a water reducing agent, redispersible latex powder and a foaming agent, the porous aggregates are crushed and classified, pre-wet treatment is carried out, the cementing material, the water reducing agent, the redispersible latex powder and the water are added and stirred uniformly, then foam is added and stirred uniformly, and the mixture is poured on the sidewalks on site to prepare the high water storage concrete for sidewalks. By adopting the technical scheme, the water storage capacity, the water permeability and the air permeability are good, and the water discharge of a town drainage system can be reduced.
Disclosure of Invention
In order to solve the problems, the invention provides a water permeable sidewalk and a construction method thereof, and the water permeable sidewalk and the construction method thereof achieve the effects of improving the water permeability and water absorption performance of urban roads and reducing the water accumulation on urban pavements.
The invention is realized by the following technical scheme.
The permeable sidewalk comprises the following components in parts by weight: 100 parts of cement, 100 parts of gypsum powder, 830 parts of aggregate and 950 parts of water reducing agent, 0.1-0.3 part of rubber particles, 4-5 parts of modified epoxy resin, 2-2.5 parts of water permeable agent and 0.3-0.5 part of polypropylene fiber; wherein the aggregate comprises 200 portions of crushed stone with different particle sizes, 180 portions of crushed stone with the particle size of 15-20mm, 300 portions of crushed stone with the particle size of 8-10mm and 450 portions of crushed stone with the particle size of 4-7 mm.
Further, the permeable sidewalk comprises the following components in parts by weight: 100 parts of cement, 100 parts of gypsum powder, 830 parts of aggregate, 0.1 part of water reducing agent, 5 parts of rubber particles, 4 parts of modified epoxy resin, 2 parts of water permeable agent and 0.3 part of polypropylene fiber; the aggregate comprises 180 parts of crushed stone with different particle sizes, 250 parts of crushed stone with the particle size of 15-20mm, and 400 parts of crushed stone with the particle size of 4-7 mm.
Further, the permeable sidewalk comprises the following components in parts by weight: 100 parts of cement, 100 parts of gypsum powder, 950 parts of aggregate, 0.3 part of water reducing agent, 8 parts of rubber particles, 5 parts of modified epoxy resin, 2.5 parts of water permeable agent and 0.5 part of polypropylene fiber; the aggregate comprises 200 parts of crushed stones with different particle sizes, 300 parts of crushed stones with particle sizes of 8-10mm and 450 parts of crushed stones with particle sizes of 4-7 mm.
Further, the permeable sidewalk comprises the following components in parts by weight: 100 parts of cement, 100 parts of gypsum powder, 890 parts of aggregate, 0.2 part of water reducing agent, 6 parts of rubber particles, 4.5 parts of modified epoxy resin, 2.3 parts of water penetrating agent and 0.4 part of polypropylene fiber; the aggregate comprises 190 parts of crushed stones with different particle sizes, 270 parts of crushed stones with particle sizes of 8-10mm and 430 parts of crushed stones with particle sizes of 4-7 mm.
Further, the water reducing agent is a polycarboxylic acid high-performance water reducing agent.
A construction method of a water permeable sidewalk comprises the following steps: s1, excavating the road until the soil layer is exposed, filling the surface of the soil layer, and mechanically removing stones influencing the flatness of the road surface; s2, paving graded broken stones, wherein the paving thickness is determined according to the specific road surface condition, and the height space is reserved after the graded broken stones are paved by 100-150 mm; s3, mixing cement, gypsum powder, aggregate, a water reducing agent, rubber particles, modified epoxy resin, a water permeable agent and polypropylene fibers in parts by weight, adding water, stirring and fully mixing; s4, pouring, wherein the pouring thickness is 100 and 150 mm; and S5, curing for more than 24 hours.
Further, the construction method of the water permeable sidewalk includes three sub-steps in step S3: s301, preparing cement, gypsum powder, aggregate, a water reducing agent and rubber particles according to the parts by weight, adding 200 portions of water and 300 portions of water, stirring and fully mixing; s302, mixing the modified epoxy resin, the water permeable agent and the polypropylene fiber according to the parts by weight, and adding 50-100 parts of water to obtain a liquid mixture; and S303, adding the liquid mixture obtained in the step S302 into the mixed material obtained in the step S301, stirring the mixed materials together, and fully mixing the mixed materials.
Further, the construction method of the water permeable sidewalk includes, in step S3, two sub-steps: s311, preparing cement, gypsum powder, aggregate and a water reducing agent according to the parts by weight, adding 200 parts of water and 300 parts of water, stirring, and fully mixing for later use; s312, mixing cement, gypsum powder, aggregate, a water reducing agent, rubber particles, modified epoxy resin, a water permeable agent and polypropylene fibers, adding 200 portions of water and 300 portions of water, stirring, and fully mixing for later use; the step S311 and the step S312 are respectively performed simultaneously; in the step S4, the step S401 is divided into two steps, wherein the mixed material obtained in the step S311 is poured on the surface of the graded broken stone, and the pouring thickness is 50-80 mm; s402, pouring the mixed material obtained in the step S312 onto the surface of the mixed material poured in the step S311, wherein the pouring thickness is 50-70 mm.
The invention has the beneficial effects that:
according to the permeable sidewalk, the broken stones with different particle sizes are used as aggregates, so that good water permeability can be guaranteed, and the stable internal structure after forming can be guaranteed; the cement and the gypsum powder are used as the gel, so that the aggregates can be bonded, and the strength of the pavement can be ensured; increase the compliance on road surface through the rubber granule, increase pavement material's porosity through the penetrant to promote the effect of permeating water, improve the toughness on road surface through modified epoxy and polypropylene fiber, avoid the road surface fracture.
The technical scheme also provides a construction method of the sidewalk, construction is started from a mud layer, graded broken stones are laid, the mixed materials provided by the technical scheme are laid, water on the road surface can reach the graded broken stone layer after permeating, enter the mud layer and permeate into the ground, the water on the road surface can be absorbed on the spot, the drainage pressure of an urban underground pipe network is reduced, meanwhile, a certain degree of supplement is formed on underground water resources, and the water absorption effect of sponge is achieved.
The sidewalk constructed according to the technical scheme has a stable internal structure and certain toughness, and is not easy to crack even if local sinking occurs. The technical scheme is mainly used for sidewalks, runways, sidewalks in districts, non-motor vehicle lanes and the like with low requirements on road surface strength, and the materials are easy to obtain and low in cost.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described. The following examples, which are not described in detail, were treated by a conventional method.
The permeable sidewalk comprises the following components in parts by weight: 100 parts of cement, 100 parts of gypsum powder, 830 parts of aggregate and 950 parts of water reducing agent, 0.1-0.3 part of rubber particles, 4-5 parts of modified epoxy resin, 2-2.5 parts of water permeable agent and 0.3-0.5 part of polypropylene fiber; wherein the aggregate comprises 200 portions of crushed stone with different particle sizes, 180 portions of crushed stone with the particle size of 15-20mm, 300 portions of crushed stone with the particle size of 8-10mm and 450 portions of crushed stone with the particle size of 4-7 mm. All components in the above formulation were formulated with reference to parts by weight of cement. The crushed stone in the formula is obtained by screening through different types of screens.
A construction method of a water permeable sidewalk comprises the following steps: s1, excavating the road until the soil layer is exposed, filling the surface of the soil layer, and mechanically removing stones influencing the flatness of the road surface; s2, paving graded broken stones, wherein the paving thickness is determined according to the specific road surface condition, and the height space is reserved after the graded broken stones are paved by 100-150 mm; s3, mixing cement, gypsum powder, aggregate, a water reducing agent, rubber particles, modified epoxy resin, a water permeable agent and polypropylene fibers in parts by weight, adding water, stirring and fully mixing; s4, pouring, wherein the pouring thickness is 100 and 150 mm; and S5, curing for more than 24 hours.
Example one
The water reducing agent is a polycarboxylic acid high-performance water reducing agent, and is prepared by taking the cement dosage as a reference, so that the water reducing effect is good.
Example two
The permeable sidewalk comprises the following components in parts by weight: 100 parts of cement, 100 parts of gypsum powder, 830 parts of aggregate, 0.1 part of water reducing agent, 5 parts of rubber particles, 4 parts of modified epoxy resin, 2 parts of water permeable agent and 0.3 part of polypropylene fiber; the aggregate comprises 180 parts of crushed stone with different particle sizes, 250 parts of crushed stone with the particle size of 15-20mm, and 400 parts of crushed stone with the particle size of 4-7 mm.
EXAMPLE III
The permeable sidewalk comprises the following components in parts by weight: 100 parts of cement, 100 parts of gypsum powder, 950 parts of aggregate, 0.3 part of water reducing agent, 8 parts of rubber particles, 5 parts of modified epoxy resin, 2.5 parts of water permeable agent and 0.5 part of polypropylene fiber; the aggregate comprises 200 parts of crushed stones with different particle sizes, 300 parts of crushed stones with particle sizes of 8-10mm and 450 parts of crushed stones with particle sizes of 4-7 mm.
Example four
The permeable sidewalk comprises the following components in parts by weight: 100 parts of cement, 100 parts of gypsum powder, 890 parts of aggregate, 0.2 part of water reducing agent, 6 parts of rubber particles, 4.5 parts of modified epoxy resin, 2.3 parts of water penetrating agent and 0.4 part of polypropylene fiber; the aggregate comprises 190 parts of crushed stones with different particle sizes, 270 parts of crushed stones with particle sizes of 8-10mm and 430 parts of crushed stones with particle sizes of 4-7 mm.
EXAMPLE five
A construction method of a water permeable sidewalk comprises the following steps:
s1, excavating the road until the soil layer is exposed, filling and leveling the surface of the soil layer, and mechanically removing large stones influencing the flatness of the road surface by excavation, on-site crushing and the like;
s2, paving graded broken stones on the soil surface, wherein the paving thickness is determined according to the specific road surface condition, and after the graded broken stones are paved, a height space between the upper surfaces of the graded broken stones and the designed plane of the road surface is reserved for 100-150 mm;
s3, comprising three sub-steps:
s301, preparing cement, gypsum powder, aggregate, a water reducing agent and rubber particles according to the parts by weight, adding 200 portions of water and 300 portions of water, stirring and fully mixing;
s302, mixing the modified epoxy resin, the water permeable agent and the polypropylene fiber according to the parts by weight, and adding 50-100 parts of water to obtain a liquid mixture; the proportion is still based on the amount of cement used in step S301;
and S303, adding the liquid mixture obtained in the step S302 into the mixed material obtained in the step S301, stirring the mixed materials together, and fully mixing the mixed materials.
S4, casting, wherein the casting thickness is 100 and 150mm, and the surface is flattened;
and S5, curing for more than 24 hours.
The permeable pavement poured according to the steps can be poured at one time, and the integral forming effect and the permeable effect are good.
EXAMPLE six
A construction method of a water permeable sidewalk comprises the following steps:
s1, excavating the road until the soil layer is exposed, filling and leveling the surface of the soil layer, and mechanically removing large stones influencing the flatness of the road surface by excavation, on-site crushing and the like;
s2, paving graded broken stones on the soil surface, wherein the paving thickness is determined according to the specific road surface condition, and after the graded broken stones are paved, a height space between the upper surfaces of the graded broken stones and the designed plane of the road surface is reserved for 100-150 mm;
s3, comprising two sub-steps, wherein the two sub-steps are respectively carried out simultaneously:
s311, preparing cement, gypsum powder, aggregate and a water reducing agent according to the parts by weight, adding 200 parts of water and 300 parts of water, stirring, and fully mixing for later use;
s312, mixing cement, gypsum powder, aggregate, a water reducing agent, rubber particles, modified epoxy resin, a water permeable agent and polypropylene fibers, adding 200 portions of water and 300 portions of water, stirring, and fully mixing for later use;
s4, comprising two sub-steps:
s401, pouring the mixed material obtained in the step S311 onto the surface of the graded broken stone, wherein the pouring thickness is 50-80 mm;
s402, pouring the mixed material obtained in the step S312 onto the surface of the mixed material poured in the step S311, wherein the pouring thickness is 50-70mm, and flattening the surface;
and S5, curing for more than 24 hours.
The permeable pavement molded by casting according to the steps needs to be cast twice, the pavement forms a layered structure, the thickness of the upper layer is smaller, the raw materials are saved, and the toughness and the water permeability of the molded upper layer pavement are better.
Examples of the experiments
And (3) carrying out a subsection water permeability test on the finished pavement by using 1L of tap water, and recording the water permeability time as follows:
the experimental conditions are as follows: in sunny days, the temperature is 21-26 ℃, and the pavement is dry.
The experimental method comprises the following steps: placing a circular frame with the diameter of 1m at any horizontal position of a control group or an experimental group, pouring 1L of tap water into the central position of the circular frame within 30-40s, and recording the average distance of the water diffusion boundary exceeding the circular frame and the water permeation time. The control experiment should avoid the position of the pavement crack.
| Grouping | Margin 1 | Margin 2 | Margin 3 | Average distance | Time of day |
| Control group 1 | 1.7m | 0.8m | 1.1m | 1.20m | 12min23s |
| Control group 2 | 1.3m | 0.7m | 0.6m | 0.87m | 5min26s |
| Experimental group 1 | 0.2m | 0.1m | 0m | 0.10m | 0min41s |
| Experimental group 2 | 0.3m | 0m | 0.1m | 0.13m | 0min57s |
| Experimental group 3 | 0.1m | 0m | 0.2m | 0.10m | 0min44s |
Wherein, the control group 1 is a common cement pavement, the control group 2 is a common asphalt pavement, and the experimental groups 1-3 are three different positions of the permeable pavement poured according to the technical scheme respectively; when the value is taken, three values ensure a maximum value, and the other two values are measured by taking points at intervals of 120 degrees by taking a connecting line from the maximum value to the circle center as a reference.
Therefore, the permeable pavement obtained by adopting the technical scheme has a good permeable effect. The road surface is mainly used as a sidewalk, a runway, a road inside a community and the like, and is not used for a road and a lane, so that the requirement on the strength of the road surface is not high. Because the formula for partially enhancing the toughness of the pavement is added in the ingredients, the pavement has certain toughness and is not easy to crack.
The above description is only a preferred embodiment of the present invention, and it should be understood that modifications made by those skilled in the art without departing from the technical idea of the present invention should be regarded as the protection scope of the present invention.
Claims (8)
1. A permeable sidewalk, which is characterized in that: the coating comprises the following components in parts by weight: 100 parts of cement, 100 parts of gypsum powder, 830 parts of aggregate and 950 parts of water reducing agent, 0.1-0.3 part of rubber particles, 4-5 parts of modified epoxy resin, 2-2.5 parts of water permeable agent and 0.3-0.5 part of polypropylene fiber; wherein the aggregate comprises 200 portions of crushed stone with different particle sizes, 180 portions of crushed stone with the particle size of 15-20mm, 300 portions of crushed stone with the particle size of 8-10mm and 450 portions of crushed stone with the particle size of 4-7 mm.
2. A construction method of a water permeable sidewalk is characterized by comprising the following steps: the method comprises the following steps: s1, excavating the road until the soil layer is exposed, filling the surface of the soil layer, and mechanically removing stones influencing the flatness of the road surface; s2, paving graded broken stones, wherein the paving thickness is determined according to the specific road surface condition, and the height space is reserved after the graded broken stones are paved by 100-150 mm; s3, mixing cement, gypsum powder, aggregate, a water reducing agent, rubber particles, modified epoxy resin, a water permeable agent and polypropylene fibers in parts by weight, adding water, stirring and fully mixing; s4, pouring, wherein the pouring thickness is 100 and 150 mm; and S5, curing for more than 24 hours.
3. The construction method of the water permeable sidewalk according to claim 2, wherein: in step S3, the method includes three sub-steps: s301, preparing cement, gypsum powder, aggregate, a water reducing agent and rubber particles according to the parts by weight, adding 200 portions of water and 300 portions of water, stirring and fully mixing; s302, mixing the modified epoxy resin, the water permeable agent and the polypropylene fiber according to the parts by weight, and adding 50-100 parts of water to obtain a liquid mixture; and S303, adding the liquid mixture obtained in the step S302 into the mixed material obtained in the step S301, stirring the mixed materials together, and fully mixing the mixed materials.
4. The construction method of the water permeable sidewalk according to claim 2, wherein: in step S3, the method includes two sub-steps: s311, preparing cement, gypsum powder, aggregate and a water reducing agent according to the parts by weight, adding 200 parts of water and 300 parts of water, stirring, and fully mixing for later use; s312, mixing cement, gypsum powder, aggregate, a water reducing agent, rubber particles, modified epoxy resin, a water permeable agent and polypropylene fibers, adding 200 portions of water and 300 portions of water, stirring, and fully mixing for later use; the step S311 and the step S312 are respectively performed simultaneously; in the step S4, the step S401 is divided into two steps, wherein the mixed material obtained in the step S311 is poured on the surface of the graded broken stone, and the pouring thickness is 50-80 mm; s402, pouring the mixed material obtained in the step S312 onto the surface of the mixed material poured in the step S311, wherein the pouring thickness is 50-70 mm.
5. A water-permeable sidewalk according to claim 1, wherein: the coating comprises the following components in parts by weight: 100 parts of cement, 100 parts of gypsum powder, 830 parts of aggregate, 0.1 part of water reducing agent, 5 parts of rubber particles, 4 parts of modified epoxy resin, 2 parts of water permeable agent and 0.3 part of polypropylene fiber; the aggregate comprises 180 parts of crushed stone with different particle sizes, 250 parts of crushed stone with the particle size of 15-20mm, and 400 parts of crushed stone with the particle size of 4-7 mm.
6. A water-permeable sidewalk according to claim 1, wherein: the coating comprises the following components in parts by weight: 100 parts of cement, 100 parts of gypsum powder, 950 parts of aggregate, 0.3 part of water reducing agent, 8 parts of rubber particles, 5 parts of modified epoxy resin, 2.5 parts of water permeable agent and 0.5 part of polypropylene fiber; the aggregate comprises 200 parts of crushed stones with different particle sizes, 300 parts of crushed stones with particle sizes of 8-10mm and 450 parts of crushed stones with particle sizes of 4-7 mm.
7. A water-permeable sidewalk according to claim 1, wherein: the coating comprises the following components in parts by weight: 100 parts of cement, 100 parts of gypsum powder, 890 parts of aggregate, 0.2 part of water reducing agent, 6 parts of rubber particles, 4.5 parts of modified epoxy resin, 2.3 parts of water penetrating agent and 0.4 part of polypropylene fiber; the aggregate comprises 190 parts of crushed stones with different particle sizes, 270 parts of crushed stones with particle sizes of 8-10mm and 430 parts of crushed stones with particle sizes of 4-7 mm.
8. A water-permeable sidewalk according to claim 1, wherein: the water reducing agent is a polycarboxylic acid high-performance water reducing agent.
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| CN201911193238.XA CN110790560A (en) | 2019-11-28 | 2019-11-28 | Permeable sidewalk and construction method thereof |
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| CN201911193238.XA CN110790560A (en) | 2019-11-28 | 2019-11-28 | Permeable sidewalk and construction method thereof |
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| CN117342837A (en) * | 2023-09-19 | 2024-01-05 | 湖北路城建设科技有限公司 | UHPC ground material, slit type permeable pavement and paving method thereof |
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| CN106284019A (en) * | 2016-08-29 | 2017-01-04 | 唐健发 | A kind of permeable tile work road surface and construction method thereof |
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