CN204589748U - A kind of permeable concrete road structure - Google Patents
A kind of permeable concrete road structure Download PDFInfo
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- CN204589748U CN204589748U CN201520164539.0U CN201520164539U CN204589748U CN 204589748 U CN204589748 U CN 204589748U CN 201520164539 U CN201520164539 U CN 201520164539U CN 204589748 U CN204589748 U CN 204589748U
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Abstract
The utility model discloses a kind of permeable concrete road structure, be followed successively by nano-silica-containing color coating layer (1) from top to bottom, mix regeneration aggregate permeable concrete surface layer (2), regeneration aggregate hydraulic permeability concrete basal layer (3), aquitard (4), tamp plain soil layer (5).The coating layer thickness of nano-silica-containing color coating layer (1) is 10-300 μm.The thickness mixing regeneration aggregate permeable concrete surface layer (2) is 100-200mm.The thickness of regeneration aggregate hydraulic permeability concrete basal layer (3) is 150-200mm.Aquitard (4) is waterproof geotechnique's layer of cloth or ordinary concrete layer, and ordinary concrete layer thickness is 30-50mm.Tamp the compacting element soil layer that plain soil layer (5) is greater than 95% for coefficient of consolidation.The utility model has good mechanical property and water permeability, and the colour-wash of surface layer spraying nano-silica-containing, improves its abrasion resistance, and have the self-cleaning effect of sterilization, environmental-friendly and comfortable, elegant in appearance.
Description
Technical field
The utility model relates to pervious concrete pavement construction applications, specifically, relates to a kind of regeneration aggregate permeable concrete road structure of surface spraying nano-silica-containing colour-wash.
Background technology
The application of permeable concrete road structure is more and more extensive, has expedited the emergence of the personnel of a collection of this special concrete of specializing in, design and construct.Along with deepening continuously of research, mechanical property and water permeability, by certain match ratio and construction measure, can meet the needs on various underloading road surface.At present, increasing scholar starts to pay close attention to multi-functional permeable concrete, and low-carbon (LC), environmental protection and ecology etc. require to become a dominant direction.Such as, natural aggregate regeneration aggregate in permeable concrete road structure can be replaced? how to solve the problem that surface layer comes off and fades? have for air-polluting solution? similar problem also has a lot, but there is scholar for various problem, propose the solution of some novelties, be worth joyful, some method itself has certain perspective really.
Nanjing Biaomei Stained Stone Building Material Co., Ltd. has applied for two utility model patents continuously in 2012, and all obtains mandate.First is " heat insulating function pervious concrete pavement structure " (CN 202530352 U), for the deficiency that existing pervious concrete pavement exists, provide a kind of heat insulating function pervious concrete pavement structure, it is on pervious concrete surface layer, spray one deck antimony-doped stannic oxide (ATO) coating, its thickness is 10-100 μm, because this material is n-type semiconductor, visible light transmissivity is up to more than 75%, therefore the heat insulation coating material of this environmental protection, can infrared rays in reflected solar radiation, alleviate road surface to heat up under the irradiation of sunray, reduce pavement temperature, reduce heat island effect.Second is " air-cleaning function pervious concrete pavement structure " (CN 202530353 U), for the deficiency that existing pervious concrete pavement exists, provide a kind of air-cleaning function pervious concrete pavement structure, it is at pervious concrete surface layer spray layer of titanium dioxide (TiO
2) coating, its thickness is 10-100 μm, because this material is a kind of photocatalyst material, can by disinfection by ultraviolet light and sterilization, self is nontoxic, reliable to human-body safety, purify various material, end product is carbon dioxide, water and other harmless objects, does not produce secondary pollution, the coating material of therefore this environmental protection have purify air, bacteria growing inhibiting and the bright and clean function of maintenance surface layer.The thought of above two utility model patents is really more fashionable, but it presents is a kind of function of stealth, cannot see and can not touch, being difficult to the quality defining its effect.
China State Construction Engrg. Corp. Ltd. has applied for a patent of invention " a kind of inactive environment protection energy storage luminous pervious concrete pavement and construction method thereof " (CN 103437259 A) in 2013, this structure comprises soil matrix, basic unit, strong pervious concrete deck, luminous pervious concrete surface layer and topping five parts from bottom to top.Wherein luminous pervious concrete surface layer employs a kind of material being called artificial luminous stone, and it is alkaline earth aluminate or the alkaline-earth silicate class stone material of activated by rare earth elements, "dead" and have energy-accumulating luminous function.Use so a kind of paving form, surface layer is ornamental good by day, absorbs and stores luminous energy, luminous at night self, plays illuminating effect, so, makes pervious concrete pavement no longer dull.This patent adopts luminous pervious concrete as surface material, and form is very novel, but its soil matrix is weaker, and a large amount of rainwater infiltration easily empties soil particle, affects its durability.
Utility model content
The technical problems to be solved in the utility model is, for the deficiency of existing pervious concrete pavement structure, provides a kind of regeneration aggregate permeable concrete road structure of surface spraying nano-silica-containing colour-wash.The utility model introduces regeneration aggregate, reaches the object of saving natural resource, discarded object can be recycled; The utility model, at surface layer spraying nano-silica-containing colour-wash, achieves the multifunction of pervious concrete.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of regeneration aggregate permeable concrete road structure of surface spraying nano-silica-containing colour-wash, one is divided into five levels from top to bottom: nano-silica-containing color coating layer; Mix regeneration aggregate permeable concrete surface layer; Regeneration aggregate hydraulic permeability concrete basal layer; Waterproof geotechnique layer of cloth; Tamp plain soil layer.
Preferably, the coating layer thickness of described nano-silica-containing color coating layer is 10-300 μm, and in coating, nano silicon volume is 1-20%.
Preferably, described to mix regeneration aggregate volume in regeneration aggregate permeable concrete surface layer be 30-50%, and aggregate size is 5-10mm, plain color, and thickness is 100-200mm.
Preferably, the aggregate size of described regeneration aggregate hydraulic permeability concrete basal layer is 10-20mm, and thickness is 150-200mm.
Preferably, described waterproof geotechnique layer of cloth also available thickness is that 30-50mm ordinary concrete layer replaces.
Preferably, the coefficient of consolidation of described compacting element soil layer is greater than 95%.
Compared with prior art, the utility model has following beneficial effect:
The first, appropriate nano silicon adds in coating, can improve intensity and the hardness of coating, surface layer difficult drop-off and more wear-resisting.Nano silicon has tridimensional network, has huge specific area, shows great activity, net structure can be formed when coating is dry, add intensity and the fineness of coating simultaneously, and improve the suspension of pigment, the color of coating can be kept colour-fast for a long time.
The second, nano silicon has the special optical performance that Normal silica does not have, and it has extremely strong UV absorption, infrared external reflection characteristic.It to the uv absorption rate within wavelength 400nm up to more than 70%, also more than 70% is reached to the infrared reflectivity beyond wavelength 800nm, add in coating and can form shielding action to coating, reach the object of anti-ultraviolet ageing and resistant to thermal aging, add the thermal insulation of coating simultaneously.
3rd, utilize the multi-cellular structure of nano silicon, the interfacial structure of geometry complementation within the scope of nanoscale is formed in film coated surface, the gas barrier film that one deck is stable is formed on surface, it is made to present amphiphilic or two thin property, effectively improve the tack of rainwater to the wetting of coating film coated surface and dust, improve resistance to soiling and the self-cleaning ability of film.In addition, this pervious concrete surface layer is antibacterial, anticorrosion and transparent.
3rd, because nano-silica-containing coating has multifunctionality, make pervious concrete surface layer comprise numerous additional function, such as resistance of rainwater washing against, anti-ultraviolet aging, high-efficiency self-cleaning, Antimicrobial preservative, transparent light and thermally-stabilised etc.
4th, mix regeneration aggregate, reach the object of saving natural resource, discarded object can be recycled, and energy-conserving and environment-protective, beautify the environment.
5th, applied widely.The regeneration aggregate permeable concrete road structure of this surface spraying nano-silica-containing colour-wash, can be applicable to the underloading road surfaces such as sidewalk, garden path and parking lot, environmental-friendly and comfortable, elegant in appearance.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model permeable concrete road structure;
In figure: 1-nano-silica-containing color coating layer; 2-mixes regeneration aggregate permeable concrete surface layer; 3-regeneration aggregate hydraulic permeability concrete basal layer; 4-waterproof geotechnique layer of cloth; 5-tamps plain soil layer.
Detailed description of the invention
In order to make the utility model clearly understand, below in conjunction with embodiment and accompanying drawing, the utility model is described.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
As can be seen from accompanying drawing 1, pervious concrete pavement structure of the present utility model, adopts full impregnated water-bound form, one is divided into five levels from top to bottom: nano-silica-containing color coating layer 1; Mix regeneration aggregate permeable concrete surface layer 2; Regeneration aggregate hydraulic permeability concrete basal layer 3; Waterproof geotechnique layer of cloth 4; Tamp plain soil layer 5.
Wherein the coating layer thickness of nano-silica-containing color coating layer 1 is 100 μm, and in coating, nano silicon volume is 10%.Appropriate nano silicon adds in coating, can improve intensity and the hardness of coating, surface layer difficult drop-off and more wear-resisting.
In addition, because nano-silica-containing coating has multifunctionality, make pervious concrete surface layer comprise numerous additional function, such as resistance of rainwater washing against, anti-ultraviolet aging, high-efficiency self-cleaning, Antimicrobial preservative, transparent light and thermally-stabilised etc.
Nano-silica-containing colour-wash is a kind of novel environmental protection coating material, and because it reaches nanoscale scope, therefore it has more multi-functional.Nano silicon adds the scrub resistance, intensity, hardness etc. that can improve coating in coating to.The problems such as the suspension stability that coating itself exists is poor, thixotropy is poor, fineness is not high, after adding proper amount of nano silica, are also well solved.
Concrete function is as follows: (1) washability: this point is vital for pervious concrete, because it is in the environment of rain wash for a long time, surface coating material is easy to fade because rainwater repeatedly scrubs or come off; (2) weatherability: the coating of nano-silica-containing can resist ultraviolet irradiation, makes pervious concrete surface layer not easily aging; (3) resistance to soiling and self-cleaning: the multi-cellular structure utilizing nano silicon, the interfacial structure of geometry complementation within the scope of nanoscale is formed in film coated surface, the gas barrier film that one deck is stable is formed on surface, it is made to present amphiphilic or two thin property, effectively improve the tack of rainwater to the wetting of coating film coated surface and dust, improve resistance to soiling and the self-cleaning ability of film, pervious concrete surface layer seems sparkling clean all the time; (4) antibiotic property: in coating, when the addition of nano silicon is more than 0.5%, coating shows obvious antibacterial effect, and rainwater oozes through under surface, and coating has certain sterilizing function; (5) hydrophobic anti-corrosive properties: nano-silica-containing coating not only has good tack, corrosion resistance, and there is the permeability of higher compactness and anti-ion, the hole of pervious concrete surface layer not easily blocks; (6) transparency: nano silicon can ensure the transparency of nanocomposite coatings, no matter coordinates what color, can make bright color, and earth material is also provided with affine sense and the sense of reality; (7) high rigidity: when individual particle disperses when nano-silicon dioxide particle is evenly in organic material, nano particle plays humidification to organic material as rigid link chain, thus improving the hardness of film of ultraviolet-curing paint, pervious concrete surface layer is not easy to wear; (8) heat stability: in ultraviolet-curing paint, nano silicon can improve the vitrification point of film, makes coating have heat stability; (9) thickening property: nano silicon add the viscosity that can significantly improve coating, construct spray time, more easily bond with pervious concrete surface layer.
Mixing regeneration aggregate volume in regeneration aggregate permeable concrete surface layer 2 is 30%, and aggregate size is 5-10mm, plain color, and thickness is 100mm, effectively ensures intensity and the durability of facing concrete.
The aggregate size of regeneration aggregate hydraulic permeability concrete basal layer 3 is 10-20mm, and thickness is 150mm, has again higher supporting capacity and water permeability.
The coefficient of consolidation tamping plain soil layer 5 is greater than 95%, and the part rainwater oozed from surface layer slowly infiltrates into the plain soil layer of compacting, ensures that roadbed itself does not soften, and improves intensity and the durability of structure.
The aggregate size of surface layer is less than the aggregate size of basic unit, and surface layer adopts the simple grain level rubble of 5-10mm, and basic unit adopts the simple grain level rubble of 10-20mm.Because surface layer directly contacts with wagon flow with the stream of people, so have higher requirement to its abrasion resistance and comfortableness.If particle diameter is too large, the performance of its normal function can be affected, and hole easily blocks.Supporting capacity and the water permeable ability of basic unit are not less than surface layer, and under this prerequisite, we adopt the aggregate of greater particle size, generate larger hole, are conducive to rainwater and ooze at present.Waterproof geotechnique layer of cloth is conducive to protecting the soil particle of the plain soil layer of compacting not run off, and makes the soil body maintain certain intensity and shape under the osmosis of rainwater, effectively improves stability and the durability of highway construction.
Waterproof geotechnique layer of cloth 4 also available thickness be 50mm ordinary concrete layer replace, longitudinally look for slope respectively to both sides during construction, the gradient with can allow rainwater naturally flow to both sides curb below the soil body be as the criterion.Ordinary concrete layer is considered as aquitard, and it and both maximum differences above are that rainwater can not flow through with speed faster, and its plane is bordering on sealing.When discharge is less, rainwater can slowly ooze down at this one deck, and when discharge is larger, rainwater will form shunting on its surface, oozes under a part, and a part flows into pipeline or sump in a organized way according to the gradient.So, beneath compacting element soil layer would not damage because the long-time rainwater of large discharge repeatedly washes away, and ensures the durability of engineering, can maintain again the balance of groundwater table.
Claims (6)
1. a permeable concrete road structure, it is characterized in that, described road structure is followed successively by nano-silica-containing color coating layer (1) from top to bottom, mixes regeneration aggregate permeable concrete surface layer (2), regeneration aggregate hydraulic permeability concrete basal layer (3), aquitard (4), tamp plain soil layer (5).
2. concrete road surface structure according to claim 1, is characterized in that, the coating layer thickness of described nano-silica-containing color coating layer (1) is 10-300 μm.
3. concrete road surface structure according to claim 1, is characterized in that, described in mix regeneration aggregate permeable concrete surface layer (2) thickness be 100-200mm.
4. concrete road surface structure according to claim 1, is characterized in that, the thickness of described regeneration aggregate hydraulic permeability concrete basal layer (3) is 150-200mm.
5. concrete road surface structure according to claim 1, is characterized in that, described aquitard (4) is waterproof geotechnique's layer of cloth or ordinary concrete layer, and ordinary concrete layer thickness is 30-50mm.
6. concrete road surface structure according to claim 1, is characterized in that, the plain soil layer of described compacting (5) for coefficient of consolidation be greater than 95% compacting element soil layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520164539.0U CN204589748U (en) | 2015-03-23 | 2015-03-23 | A kind of permeable concrete road structure |
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| CN201520164539.0U CN204589748U (en) | 2015-03-23 | 2015-03-23 | A kind of permeable concrete road structure |
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| CN204589748U true CN204589748U (en) | 2015-08-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818660A (en) * | 2015-03-23 | 2015-08-05 | 仪征江阳砼制品有限公司 | Water-permeable concrete pavement structure |
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- 2015-03-23 CN CN201520164539.0U patent/CN204589748U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818660A (en) * | 2015-03-23 | 2015-08-05 | 仪征江阳砼制品有限公司 | Water-permeable concrete pavement structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20160323 |