CN214782999U - Recycled coarse aggregate concrete permeable pavement structure - Google Patents
Recycled coarse aggregate concrete permeable pavement structure Download PDFInfo
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- CN214782999U CN214782999U CN202120148883.6U CN202120148883U CN214782999U CN 214782999 U CN214782999 U CN 214782999U CN 202120148883 U CN202120148883 U CN 202120148883U CN 214782999 U CN214782999 U CN 214782999U
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- permeable
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- coarse aggregate
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- 239000004567 concrete Substances 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 230000035699 permeability Effects 0.000 claims abstract description 19
- 230000008929 regeneration Effects 0.000 claims abstract description 9
- 238000011069 regeneration method Methods 0.000 claims abstract description 9
- 239000004566 building material Substances 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 48
- 239000002344 surface layer Substances 0.000 claims description 44
- 239000002245 particle Substances 0.000 claims description 16
- 239000002893 slag Substances 0.000 claims description 12
- 239000011380 pervious concrete Substances 0.000 claims description 11
- 239000002910 solid waste Substances 0.000 claims description 7
- 239000002689 soil Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000012466 permeate Substances 0.000 abstract description 11
- 238000010276 construction Methods 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000018109 developmental process Effects 0.000 abstract description 3
- 239000004568 cement Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000010881 fly ash Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model relates to a regeneration coarse aggregate concrete permeable pavement structure, from last down including the upper strata of permeating water, permeate water basic unit and the bed course that permeates water, what the upper strata of permeating water adopted is the natural aggregate concrete that permeates water, what the lower strata of permeating water adopted is regeneration coarse aggregate concrete that permeates water, what the basic unit of permeating water adopted is regeneration coarse aggregate concrete that permeates water, what the bed course that permeates water adopted is the slay. The better utilization of the broken gained regeneration coarse aggregate of building waste replaces natural aggregate, improves the drawback of traditional concrete in urban road surface construction, realizes waste resources and recycles and building material's sustainable development to improve water permeability, made a contribution to protecting ecological environment.
Description
Technical Field
The utility model relates to a building energy saving technical field, in particular to regeneration coarse aggregate concrete permeable pavement structure.
Background
With the rapid development of the economy of China, the construction industry is also developed vigorously. The existing urban road construction also faces a plurality of problems, firstly, the demand of the urban road construction on natural resources is continuously increased, and a large amount of concrete waste materials cannot be better reused. In urban construction, many cities adopt closed earth surfaces such as cement, asphalt, concrete and the like in large quantities to replace the original soil surface, and the closed earth surfaces have obvious adverse effects on the ecological and climatic environments of the cities while improving the traffic and road conditions, so that the water on the urban road surfaces is difficult to seep down to form ecological artificial deserts and meteorological urban heat island effects. However, under the condition that natural resources and energy are very tight at present, how to save energy under the condition of balancing urban ecosystem becomes a most important theme of road development.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model aims to provide a recycled coarse aggregate pervious concrete pavement structure; the specific technical scheme is as follows:
a recycled coarse aggregate pervious concrete pavement structure comprises an upper pervious surface layer, a lower pervious surface layer, a pervious base layer and a pervious cushion layer;
the rammed earth foundation is sequentially provided with a permeable cushion layer, a permeable base layer, a permeable underwater surface layer and a permeable upper surface layer.
The upper permeable surface layer is a natural aggregate permeable concrete surface layer, the strength grade of the concrete is more than or equal to C20, and the particle size of the aggregate is 4.75-9.5 mm; and 10% of fine aggregate is added for 2.36 mm-4.75 mm, the water permeability coefficient of the pervious concrete of the pervious upper layer is not less than 1mm/s, and the thickness of the pervious upper layer is 30-60 mm.
The permeable water surface layer is recycled coarse aggregate permeable concrete, the strength grade of the concrete is more than or equal to C20, the coarse aggregate is building material solid waste, about 20% of fly ash is doped, and the particle size of the aggregate is 10-15 mm; the permeability coefficient of the recycled coarse aggregate concrete of the water permeable lower surface layer is not less than 1mm/s, the permeability coefficient of the water permeable lower surface layer is not less than that of the water permeable upper surface layer, and the thickness of the water permeable lower surface layer is 90-120 mm.
The permeable base layer is a recycled coarse aggregate permeable concrete base layer, the coarse aggregate is building material solid waste, the maximum particle size of the aggregate is not larger than 31.5mm, and the maximum particle size of the aggregate is not larger than 1/4 of the thickness of each layer of the permeable concrete. The water permeability coefficient of the water permeable base layer is not less than 0.35cm/s, the water permeability coefficient of the water permeable base layer is not less than the surface layer, and the thickness of the water permeable base layer is not less than 150 mm.
The permeable cushion layer is a slag cushion layer, and is preferably classified slag with the particle size of 20-60 mm, so that steel slag, mud blocks, organic matters and other harmful impurities cannot be mixed, and the thickness of the permeable cushion layer is 150-200 mm.
The utility model has the advantages that: the design of the double-sided layer aims at balancing the requirements of the water permeability and the road performance of the surface layer, the full water permeability road surface is designed according to the double-sided layer, the recycled aggregate contains soft and weak particles such as mortar blocks, the particle performance is uneven, the recycled aggregate is not suitable for the upper layer of the road surface, the upper layer adopts hard and durable natural aggregate with proper thickness to prepare a water permeable cement concrete surface layer, and the lower layer adopts recycled aggregate water permeable cement concrete with proper thickness, so that the engineering cost is favorably reduced. Considering from the perspective of water permeability, the upper and lower surface course can design into different porosities, and lower surface course designs into relatively great porosity, can reduce the emergence of the stifled hole phenomenon of the cement concrete that permeates water for a long time.
The industrial solid waste is reasonably and effectively utilized, the waste of natural resources and the pollution of construction waste are reduced, the water permeability of the pavement structure is improved by secondarily utilizing the fly ash, the slag and the recycled coarse aggregate in the pavement structure, and compared with the traditional pavement, the pavement structure has excellent performances of drainage, ventilation, sound absorption, noise reduction and the like, and is favorable for solving the influence of urban inland inundation, heat island effect and the like on the ecological environment.
Drawings
FIG. 1 is a schematic structural view of an additional recycled coarse aggregate concrete permeable pavement;
in the figure: 1-a water permeable upper surface layer; 2-a water permeable surface layer; 3-a permeable base layer; 4-a water-permeable cushion layer; and 5-tamping the soil foundation.
Detailed Description
The following further description of the present invention will be made with reference to the drawings, but it should not be understood that the scope of the present invention is limited to the following embodiments. Various substitutions and modifications can be made without departing from the spirit of the invention and the scope of the invention as defined by the appended claims.
As shown in figure 1, the utility model aims at providing a regeneration coarse aggregate concrete pavement structure that permeates water entirely includes rammed earth ground 5 according to the construction order, slay bed course 4, regeneration coarse aggregate concrete base layer 3 that permeates water, regeneration coarse aggregate concrete lower surface layer 2 that permeates water, natural aggregate concrete upper surface layer 1 that permeates water.
The rammed earth foundation 5: the method is characterized in that an original earth surface is excavated according to design requirements, then plain soil is backfilled, and leveling and tamping are carried out, so that the main purpose is to clean up original garbage and harmful soil on the earth surface, and tamping is to ensure the structural strength of the foundation at the bottom of the road surface, thereby ensuring the stability and the service life of the road surface.
The slag cushion layer 4: the method comprises the steps of paving graded slag with the particle size of 20-60 mm on a rammed earth foundation 5, then spraying water and rolling, wherein the slag is required not to be mixed with steel slag, mud blocks, organic matters and other harmful impurities, and the paving thickness is 150-200 mm.
The recycled coarse aggregate pervious concrete base layer 3: and the coarse aggregate is solid waste of building materials, the maximum particle size of the aggregate is not more than 31.5mm, and the maximum particle size of the aggregate is not more than 1/4 of the thickness of each layer of the pervious concrete. The water permeability coefficient of the water permeable base layer is not less than 0.35cm/s, the water permeability coefficient of the water permeable base layer is not less than the surface layer, and the thickness of the water permeable base layer is not less than 150 mm. Because pervious concrete is easy to lose water, the slag cushion layer needs to be sprinkled with water before pouring.
The lower surface layer 2 of the recycled coarse aggregate pervious concrete: the aggregate is paved on a recycled coarse aggregate pervious concrete base layer 3, the concrete strength grade is more than or equal to C20, the coarse aggregate is building material solid waste, about 20% of fly ash is doped, and the aggregate particle size is 10-15 mm. The permeability coefficient of the recycled coarse aggregate concrete of the water permeable lower surface layer is not less than 1mm/s, the permeability coefficient of the water permeable lower surface layer is not less than that of the water permeable upper surface layer, and the thickness of the water permeable lower surface layer is 90-120 mm. The cement stirring method adopts a cement stone wrapping method, and during paving, a flattening compactor or low-frequency vibration compacting equipment and a special rolling tool are adopted for rolling.
The recycled coarse aggregate pervious concrete upper surface layer 1: the recycled coarse aggregate permeable concrete is paved on a lower surface layer 2 of recycled coarse aggregate permeable concrete, in order to ensure that the upper surface layer and the lower surface layer are combined into a whole, the upper surface layer is paved before the initial setting of the lower surface layer, and the paving time interval between the upper surface layer and the lower surface layer is not more than 1 h. The strength grade of concrete is more than or equal to C20, and the particle size of aggregate is 4.75-9.5 mm; and 10% of fine aggregate is added for 2.36 mm-4.75 mm, the water permeability coefficient of the pervious concrete of the pervious upper layer is not less than 1mm/s, and the thickness of the pervious upper layer is 30-60 mm.
Claims (4)
1. The utility model provides a regeneration coarse aggregate concrete permeable pavement structure which characterized in that: comprises an upper permeable surface layer, a lower permeable surface layer, a permeable base layer and a permeable cushion layer;
a water permeable cushion layer, a water permeable base layer, a water permeable lower surface layer and a water permeable upper surface layer are sequentially arranged on the rammed soil foundation;
the upper permeable surface layer is a natural aggregate permeable concrete surface layer, the strength grade of the concrete is more than or equal to C20, and the particle size of the aggregate is 4.75-9.5 mm; the permeable coefficient of the permeable concrete of the permeable upper layer is not less than 1mm/s, and the thickness of the permeable upper layer is 30-60 mm.
2. The recycled coarse aggregate concrete permeable pavement structure according to claim 1, characterized in that: the underwater permeable surface layer is made of recycled coarse aggregate pervious concrete, the strength grade of the concrete is more than or equal to C20, the coarse aggregate is building material solid waste, and the particle size of the aggregate is 10-15 mm; the permeability coefficient of the recycled coarse aggregate concrete of the water permeable lower surface layer is not less than 1mm/s, the permeability coefficient of the water permeable lower surface layer is not less than that of the water permeable upper surface layer, and the thickness of the water permeable lower surface layer is 90-120 mm.
3. The recycled coarse aggregate concrete permeable pavement structure according to claim 1, characterized in that: the permeable base layer is a recycled coarse aggregate permeable concrete base layer, the coarse aggregate is building material solid waste, the maximum particle size of the aggregate is not larger than 31.5mm, and the maximum particle size of the aggregate is not larger than 1/4 of the thickness of each layer of the permeable concrete; the water permeability coefficient of the water permeable base layer is not less than 0.35cm/s, the water permeability coefficient of the water permeable base layer is not less than the surface layer, and the thickness of the water permeable base layer is not less than 150 mm.
4. The recycled coarse aggregate concrete permeable pavement structure according to claim 1, characterized in that: the permeable cushion layer is a slag cushion layer, 20-60 mm graded slag is preferably adopted, harmful impurities such as steel slag, mud blocks and organic matters cannot be mixed, and the thickness of the permeable cushion layer is 150-200 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120148883.6U CN214782999U (en) | 2021-01-20 | 2021-01-20 | Recycled coarse aggregate concrete permeable pavement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120148883.6U CN214782999U (en) | 2021-01-20 | 2021-01-20 | Recycled coarse aggregate concrete permeable pavement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214782999U true CN214782999U (en) | 2021-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120148883.6U Expired - Fee Related CN214782999U (en) | 2021-01-20 | 2021-01-20 | Recycled coarse aggregate concrete permeable pavement structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214782999U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115490460A (en) * | 2022-10-14 | 2022-12-20 | 南京赛仕瑞道路工程技术有限公司 | Fluorescence permeable pavement surface course, fluorescence permeable pavement and brick that permeates water |
-
2021
- 2021-01-20 CN CN202120148883.6U patent/CN214782999U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115490460A (en) * | 2022-10-14 | 2022-12-20 | 南京赛仕瑞道路工程技术有限公司 | Fluorescence permeable pavement surface course, fluorescence permeable pavement and brick that permeates water |
| CN115490460B (en) * | 2022-10-14 | 2023-09-08 | 南京赛仕瑞道路工程技术有限公司 | Fluorescent permeable pavement surface layer, fluorescent permeable pavement and permeable brick |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |