CN211688840U - Concrete structure permeates water - Google Patents
Concrete structure permeates water Download PDFInfo
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- CN211688840U CN211688840U CN201922384733.0U CN201922384733U CN211688840U CN 211688840 U CN211688840 U CN 211688840U CN 201922384733 U CN201922384733 U CN 201922384733U CN 211688840 U CN211688840 U CN 211688840U
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Abstract
The utility model discloses a concrete structure permeates water, including the ground structure, the top of ground structure has set gradually first concrete structure and the second concrete structure that permeates water, first concrete structure's that permeates water thickness is greater than the second concrete structure's that permeates water thickness, first concrete structure's that permeates water aggregate particle diameter is greater than the concrete structure's that permeates water aggregate particle diameter is permeated water to the second, the second concrete structure's that permeates water top is provided with two propyl polyurethane sealing layers, and through the above-mentioned mode, the utility model provides a concrete structure permeates water, not only construction is simple and convenient, and construction cost is low, and the water permeability is excellent moreover, and wear resistance and intensity performance are good.
Description
Technical Field
The utility model relates to a ground building material technical field especially relates to a concrete structure permeates water.
Background
The traditional road surface is mostly paved by asphalt, concrete, stone plates and cement bricks, which is generally called as hard road surface, and has the advantages of tidiness and durability; but it is impervious, and the rainwater is handled as sewage directly by secret sewage pipe way during the rainfall, is unfavorable for the formation of groundwater, and water deposits on the road surface and dissolves in urban pollutant and influences urban sanitation. The ordinary concrete pavement lacks of breathability and rainwater permeability, and brings a series of environmental problems, such as surface water accumulation on the ground with unsmooth drainage, and the accumulated water causes inconvenience in traffic and is easy to cause accidents; and because the hard road surface absorbs, stores and reflects the heat of the sun, the average temperature of the ground is increased to easily form an urban heat island effect, and environmental and ecological negative effects and the like are caused.
The pervious concrete is a road structure which is developed and used aiming at the defects of the road surface of the traditional urban road and can allow rainwater to flow into the ground to supplement underground water; not only can eliminate the harm of oil compounds on the ground to the environmental pollution; meanwhile, ecological balance can be maintained, and urban heat island effect can be relieved; however, most of the existing permeable concrete roads have limited water permeability, and the construction period and the construction cost are higher.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a concrete structure permeates water, and not only the construction is simple and convenient, and construction cost is low, and water permeability is excellent moreover, and wear resistance and intensity performance are good, and the practicality is stronger.
In order to solve the technical problem, the utility model discloses a technical scheme be: providing a pervious concrete structure, which comprises a foundation structure, wherein a first pervious concrete structure and a second pervious concrete structure are sequentially arranged above the foundation structure, the thickness of the first pervious concrete structure is greater than that of the second pervious concrete structure, the aggregate grain diameter of the first pervious concrete structure is greater than that of the second pervious concrete structure, and a double-polypropylene polyurethane sealing layer is arranged above the second pervious concrete structure;
further, the foundation structure comprises rammed plain soil, a graded broken stone structure is laid above the rammed plain soil, and the first pervious concrete structure is arranged above the graded broken stone structure.
Furthermore, the compaction coefficient of the rammed plain soil is greater than or equal to 0.93, and the thickness of the graded broken stone structure is 200-250 mm.
Further, the foundation structure comprises an original concrete slab brick foundation, and the first permeable concrete structure is arranged above the original concrete slab brick foundation.
The utility model has the advantages that: the utility model provides a permeable concrete structure, which not only has simple and convenient construction, lower construction cost and easy material selection, but also has excellent permeable performance, good wear resistance, better compressive strength and bending tensile strength; the first pervious concrete and the second pervious concrete with different structures are combined and matched to provide a solid supporting foundation, so that the concrete permeable structure has good water permeability and good practicability, and the pervious concrete structure in the prior art is enriched and optimized.
Description of the drawings:
fig. 1 is a plan view of a water-permeable concrete structure in example 1;
FIG. 2 is a sectional view of part A of FIG. 1, for embodying a pervious concrete structure;
fig. 3 is a plan view of a water-permeable concrete structure in example 2;
FIG. 4 is a sectional view of the portion B of FIG. 2, for embodying another permeable concrete structure;
the parts in the drawings are numbered as follows:
1. a foundation structure; 1-1, tamping plain soil; 1-2, grading broken stone structure; 1-3, original concrete slab brick foundation; 2. a first pervious concrete structure; 3. a second pervious concrete structure; 4. a sealing layer of dipropylene polyurethane.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Example 1:
as shown in fig. 1 and 2, a pervious concrete structure comprises a foundation structure 1, wherein the foundation structure 1 comprises compacted plain soil 1-1, and the compaction coefficient of the compacted plain soil 1-1 is more than or equal to 0.93, so that a firm foundation is ensured; and a graded broken stone structure 1-2 is laid above the compacted plain soil 1-1, the thickness of the graded broken stone structure is 200-250 mm, the transition effect of leveling and supporting the upper structure above the compacted plain soil 1-1 is achieved, the structural strength of the pavement is enhanced, and the pavement has good water permeability and diffusion stress.
As shown in fig. 1 and 2, a first pervious concrete structure 2 and a second pervious concrete structure 3 are sequentially arranged above a graded broken stone structure 1-2, and the aggregate grain size of the first pervious concrete structure 2 is larger than that of the second pervious concrete structure 3; the first pervious concrete structure 2 is composed of first cement, coarse aggregate, first mixing water, a first reinforcing material and a first water reducing agent according to the composition ratio of 375:1540:112:7.3:0.55, wherein the particle size of the coarse aggregate is 5-15 mm; the second pervious concrete structure 3 is composed of second cement, fine aggregate, second mixing water, a second reinforcing material, a second water reducing agent and inorganic pigment, and the composition ratio is 375:1540:112:7.3:0.55:0.75, wherein the particle size of the fine aggregate is 3-4 mm.
As shown in fig. 1 and 2, from the viewpoint of bearing strength and economic cost, the coarse aggregate particles in the first pervious concrete structure 2 are larger than the fine aggregate particles in the second pervious concrete structure 3, the thickness of the first pervious concrete structure 2 is set to be larger than that of the second pervious concrete structure 3, the first pervious concrete structure 2 disposed at the lower layer has a stronger bearing capacity, and the second pervious concrete structure 3 disposed at the upper layer is relatively smooth, wear-resistant and beautiful; in addition, the second pervious concrete structure 3 contains inorganic pigments, which can be selected according to actual requirements, such as an iron oxide inorganic pigment layer, so that a colored concrete pavement is obtained, and the appearance and flexibility are improved.
As shown in fig. 1 and 2, the coarse aggregate and the fine aggregate are made of basalt, and stones adopted by the coarse aggregate and the fine aggregate have the characteristics of high sphericity and low needle-shaped content, so that the wear resistance and the pressure resistance are excellent; in order to ensure the construction quality and the pavement strength of the pervious concrete, the initial setting time of the first cement and the second cement is not less than 45min, the final setting time is not more than 6.5h, and the first water reducing agent and the second water reducing agent both adopt a polyhydroxy acid water reducing agent with the water reducing rate of not less than 25 percent, so that the water-permeable concrete is excellent in performance and environment-friendly; the polypropylene polyurethane sealing layer 4 is arranged above the second permeable concrete structure 3, has good wettability, can deeply permeate the base material to 2-5mm, and simultaneously forms a tough transparent high-glossiness film, thereby greatly improving the wear resistance of the pavement, reducing the falling phenomenon of aggregate in use and providing a lasting protection effect for the pavement.
The preparation process of the pervious concrete structure comprises the following steps:
(a) feeding the coarse aggregate, the first cement, the first reinforcing material, the first mixing water and the first water reducing agent into a forced mixer in sequence for stirring, wherein the composition ratio is 375:1540:112:7.3:0.55, and the stirring time is not less than 180s and not more than 300s, so as to obtain a first pervious concrete structure;
(b) collecting a first pervious concrete structure, and cleaning the forced mixer at the same time;
(c) feeding the fine aggregate, the second cement, the second reinforcing material, the second mixing water, the second water reducer and the inorganic pigment into a forced mixer in sequence for stirring, wherein the composition ratio is 375:1540:112:7.3:0.55:0.75, the stirring time is not less than 180s and not more than 300s, so as to obtain a second pervious concrete structure, and then collecting;
(d) paving the first pervious concrete structure and the second pervious concrete structure obtained in the step (a) and the step (c) on a foundation structure in sequence, compacting by a leveling compactor, generally compacting for 2-3 times, after compacting the pervious concrete, using a trowelling machine to roll up a pervious concrete surface layer, and if temporary construction interruption exists in the paving process, setting construction joints;
(e) erecting formworks on two sides of the pervious concrete road obtained in the step (d), wherein the height of each formwork is not less than that of the pervious concrete road obtained by preparation;
(f) and (e) covering the surface of the pervious concrete road obtained in the step (e) with a film, watering and maintaining, selecting a layer of plastic film and a layer of color strip cloth as maintenance materials, watering at least once every day for seven consecutive days, and covering and sealing the film after each watering.
The prepared permeable concrete structure is subjected to performance tests of wear resistance, water permeability coefficient, continuous porosity, frost resistance and strength grade, and the following results show that the performance meets the industrial requirements.
Example 2:
as shown in fig. 3 and 4, the permeable concrete structure provided by the present invention further includes another structural form, and the difference from embodiment 1 is that: the foundation structure 1 comprises an original concrete slab brick foundation 1-3, a first pervious concrete structure 2 is arranged above the original concrete slab brick foundation 1-3, a second pervious concrete structure 3 is arranged above the first pervious concrete structure 2, and the aggregate grain diameter of the first pervious concrete structure 2 is larger than that of the second pervious concrete structure 3.
As shown in fig. 3 and 4, the first pervious concrete structure 2 is composed of first cement, coarse aggregate, first mixing water, a first reinforcing material and a first water reducing agent, and the composition ratio is 375:1540:112:7.3:0.55, wherein the particle size of the coarse aggregate is 5-15 mm; the second pervious concrete structure 3 is composed of second cement, fine aggregate, second mixing water, a second reinforcing material, a second water reducing agent and inorganic pigment, and the composition ratio is 375:1540:112:7.3:0.55:0.75, wherein the particle size of the fine aggregate is 3-4 mm.
As shown in fig. 3 and 4, from the viewpoint of bearing strength and economic cost, the coarse aggregate particles in the first pervious concrete structure 2 are larger than the fine aggregate particles in the second pervious concrete structure 3, the thickness of the first pervious concrete structure 2 is set to be larger than that of the second pervious concrete structure 3, the first pervious concrete structure 2 disposed at the lower layer has a stronger bearing capacity, and the second pervious concrete structure 3 disposed at the upper layer is relatively smooth, wear-resistant and beautiful; in addition, the second pervious concrete structure 3 contains inorganic pigments, which can be selected according to actual requirements, such as an iron oxide inorganic pigment layer, so that a colored concrete pavement is obtained, and the appearance and flexibility are improved.
As shown in fig. 3 and 4, the coarse aggregate and the fine aggregate are made of basalt, and stones adopted by the coarse aggregate and the fine aggregate have the characteristics of high sphericity and low needle-shaped content, so that the wear resistance and the pressure resistance are excellent; in order to ensure the construction quality and the pavement strength of the pervious concrete, the initial setting time of the first cement and the second cement is not less than 45min, the final setting time is not more than 6.5h, and the first water reducing agent and the second water reducing agent both adopt a polyhydroxy acid water reducing agent with the water reducing rate of not less than 25 percent, so that the water-permeable concrete is excellent in performance and environment-friendly; the polypropylene polyurethane sealing layer 4 is arranged above the second permeable concrete structure 3, has good wettability, can deeply permeate the base material to 2-5mm, and simultaneously forms a tough transparent high-glossiness film, thereby greatly improving the wear resistance of the pavement, reducing the falling phenomenon of aggregate in use and providing a lasting protection effect for the pavement.
The preparation process of the pervious concrete structure comprises the following steps:
(a) feeding the coarse aggregate, the first cement, the first reinforcing material, the first mixing water and the first water reducing agent into a forced mixer in sequence for stirring, wherein the composition ratio is 375:1540:112:7.3:0.55, and the stirring time is not less than 180s and not more than 300s, so as to obtain a first pervious concrete structure;
(b) collecting a first pervious concrete structure, and cleaning the forced mixer at the same time;
(c) feeding the fine aggregate, the second cement, the second reinforcing material, the second mixing water, the second water reducer and the inorganic pigment into a forced mixer in sequence for stirring, wherein the composition ratio is 375:1540:112:7.3:0.55:0.75, the stirring time is not less than 180s and not more than 300s, so as to obtain a second pervious concrete structure, and then collecting;
(d) paving the first pervious concrete structure and the second pervious concrete structure obtained in the step (a) and the step (c) on a foundation structure in sequence, compacting by a leveling compactor, generally compacting for 2-3 times, after compacting the pervious concrete, using a trowelling machine to roll up a pervious concrete surface layer, and if temporary construction interruption exists in the paving process, setting construction joints;
(e) erecting formworks on two sides of the pervious concrete road obtained in the step (d), wherein the height of each formwork is not less than that of the pervious concrete road obtained by preparation;
(f) and (e) covering the surface of the pervious concrete road obtained in the step (e) with a film, watering and maintaining, selecting a layer of plastic film and a layer of color strip cloth as maintenance materials, watering at least once every day for seven consecutive days, and covering and sealing the film after each watering.
The prepared permeable concrete structure is subjected to performance tests of wear resistance, water permeability coefficient, continuous porosity, frost resistance and strength grade, and the following results show that the performance meets the industrial requirements.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (4)
1. A pervious concrete structure, characterized in that: the concrete foundation structure comprises a foundation structure, wherein a first pervious concrete structure and a second pervious concrete structure are sequentially arranged above the foundation structure, the thickness of the first pervious concrete structure is larger than that of the second pervious concrete structure, the aggregate grain diameter of the first pervious concrete structure is larger than that of the second pervious concrete structure, and a double-polypropylene polyurethane sealing layer is arranged above the second pervious concrete structure.
2. A pervious concrete structure according to claim 1, characterized in that: the foundation structure comprises rammed plain soil, a graded broken stone structure is laid above the rammed plain soil, and the first pervious concrete structure is arranged above the graded broken stone structure.
3. A pervious concrete structure according to claim 2, characterized in that: the compaction coefficient of the rammed plain soil is greater than or equal to 0.93, and the thickness of the graded broken stone structure is 200-250 mm.
4. A pervious concrete structure according to claim 1, characterized in that: the foundation structure comprises an original concrete slab brick foundation, and the first permeable concrete structure is arranged above the original concrete slab brick foundation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922384733.0U CN211688840U (en) | 2019-12-26 | 2019-12-26 | Concrete structure permeates water |
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| CN201922384733.0U CN211688840U (en) | 2019-12-26 | 2019-12-26 | Concrete structure permeates water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111072333A (en) * | 2019-12-26 | 2020-04-28 | 苏州基业生态园林股份有限公司 | Permeable concrete structure and preparation process thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111072333A (en) * | 2019-12-26 | 2020-04-28 | 苏州基业生态园林股份有限公司 | Permeable concrete structure and preparation process thereof |
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