149 results about "Permeable paving" patented technology

An environmental water resource recycling system of the invention comprises pluralities of drainpipes units, which includes pluralities of drainpipes engaged in pluralities of holder holes formed by coupled frame strips, and sealing lids covering the opening at one end of the drainpipes. An instant water-absorbing sand layer is applied on the soil layer exposed on the ground surface before inserting the lower end of the drainpipes held in the drainpipe unit into the sand layer. Concrete is poured onto the ground to be constructed such that the concrete can integrally cover the drainpipe units. The sealing lids can be removed from the openings on the upper end of the drainpipes after the concrete is solidified, thereby accomplishing a permeable paving and instantly draining the rain on the permeable paving to the sand layer and further to the underground for being recycled as water resource for further utilization.

The invention discloses a water-permeable paving material and a preparation method and application thereof. The water-permeable paving material comprises, by weight, 60-90 parts of quartz sand, 10-40 parts of Portland cement, 2-10 parts of hydrophilic epoxy resin binders, 0.5-5 parts of curing agents and 1-10 parts of water. The curing agents include one or more of aliphatic polyamine and cycloaliphatic polyamine curing agents or aromatic ring polyamine curing agents. The hydrophilic epoxy resin binders comprise, by weight, 500-950 parts of bisphenol A epoxy resin, 1-200 parts of surfactant span, 1-200 parts of surfactant tween and 0.001-0.005 part of catalysts, wherein the catalysts can be tetraethylammonium chloride, butyl triphenyl phosphorus bromide, benzyl triethyl ammonium bromide, benzyl triethyl ammonium chloride, 2- methylimidazole or optional combination of the above substances. The water-permeable paving material is prepared by uniformly stirring the quartz sand, the Portland cement, the water, the hydrophilic epoxy resin binders and the curing agents; and then placing the stirred mixture into a mould for molding and curing for 24 hours at the normal temperature prior to demolding. The water-permeable paving material is used for preparing pavement bricks, pavement slabs and sewage filtering prefabricated members by means of molding.

Provided is a method for manufacturing artificial paving that helps improving global warming. A water permeable paving layer is provided under which a drain layer, which includes gravels or sand, is selectively formed, and an interfacing layer is formed under the drain layer. An ecological gradation layer is set and rammed. The underside ecological gradation layer provides an effect of supporting and, due to the ecological gradation layer containing therein hollow bodies, which can be embodied as disaster-prevention water-storage hollow bodies or earth-improvement hollow bodies or microorganism-culture hollow bodies or water-keeping hollow bodies as desired, allows rainwater falling on ground surface to quickly penetrate down into the underground location, makes the ecological gradation layer effectively preserve water in high water content, and prompt breeding of microorganisms, whereby when the atmosphere is of a high temperature, underground humidity can be released through drainpipes that constitute the water permeable paving.

The invention discloses a water permeable stone paving block, which comprises a flat water permeable grid plate frame, a water permeable cushion layer that is filled in the water permeable grid plate frame and made of stones bonded with adhesive, a colored stone water permeable surface layer that is bonded on the stone water permeable cushion layer and bonded with contacts, or a colored stone water permeable surface layer that is bonded on the stone water permeable cushion layer and bonded with water permeable and non-water permeable paving blocks. Compared with the traditional water permeable stone paving block, the water permeable stone paving block disclosed by the invention has greatly increased level, greatly prolonged service life and excellent water permeability, and can be produced in a factory; and the construction with the water permeable stone paving block is not affected by climatic conditions.

The invention relates to a pavement method of a permeable ground and a permeable pavement structure paved through the pavement method. The pavement method comprises the following steps of: 1) preparing pavement, that is to say, ramming and levelling the ground to be constructed, paving a layer of gravels, paving a layer of silver sand to level after settling, and levelling; 2) paving bricks, that is to say, paving from the edge of a pavement region, placing a permeable brick, after the permeable brick is placed, placing a circle of non-permeable bricks along the edge of the permeable brick so as to form a pavement unit; 3) paving the other pavement unit at the side of the pavement unit which is paved; 4) repeating the steps 1)-3) until the regions to be constructed are paved. The invention provides the ecological ground pavement method and the permeable pavement structure, the ecological performance of the ground is considered, the problems of higher cost and pavement sensitivity are well solved, and the pavement method and the permeable pavement structure can be widely applied in pavement engineering.

Systems and methods for a permeable pavement system are described. The permeable pavement system includes blocks designed to facilitate water seepage between the blocks and to permit water storage within the blocks. The blocks may be cabled together to create paving units that facilitate installation and maintenance of the pavement system. The permeable pavement system provides improved management of stormwater, reducing runoff and facilitating infiltration of stormwater into the subgrade below the paving system.

The invention discloses a long-life water permeable plate easy to recover and keep water permeability. The long-life water permeable plate is permeable by using through-type water permeable grooves or water permeable holes; and the blockages of the grooves and the holes are easy to clear by using methods such as flushing, negative pressure suction and the like to recover and keep long-time water permeability. As the adopted high ductility cement-based composite material and ultra high performance concrete are short fiber reinforced and toughened ductility cement-based composite material, the pavement road is not prone to snap; and moreover, the two materials have the advantages of excellent freezing-thawing resistance, excellent weathering resistance and long service lives. The traditional water permeable brick and the traditional water permeable plate generally have the defects of no freezing resistance and easy snapping; the resin-based product is not weathering resistant and fast to age; and holes are easy to block so that the water permeability is greatly reduced and hard to recover. According to the invention, these problems are well solved by using the long-life water permeable plate; the long-life water permeable plate is greatly superior to the traditional long-life water permeable laid product in application performance, service life and the like; the long-life water permeable plate is widely applied to permeable squares, sidewalks, bicycle lanes, district roads and lightweight motor vehicle roads under various weather conditions.

The invention belongs to the technical field of permeable paving, and particularly discloses a permeable paving system and a paving method for removing oil stain in runoff rainwater. The permeable paving system structurally comprises a permeable layer, a leveling layer, a microorganism layer, a permeable geotextile layer and a permeable base layer from top to bottom. The permeable layer is used for quickly permeating the rainwater and primarily filtering the rainwater; the leveling layer is used for cushioning and permeating water; the microorganism layer is used for adsorbing and removing the oil stain in runoff, so that permeable channels can be prevented from being blocked by the oil stain, or the oil stain can be prevented from being permeated into underground water; the permeable geotextile layer is used for permeating the permeated water of the system and preventing loss of microorganisms; the permeable base layer is used for isolating natural soil from the permeable paving system and preventing the natural soil from being spread in the microorganism layer. The paving method includes excavating roadbeds; sequentially laying the permeable base layer, the permeable geotextile layer, the microorganism layer, the leveling layer and the permeable layer. The permeable paving system and the paving method have the advantages that the microorganisms can be regularly added into the permeable paving system, so that the content of the microorganisms can be guaranteed; the oil stain in the runoff rainwater can be effectively removed, the permeable paving system and the paving method are low-carbon, green and environmentally friendly and are wide in applicability, and energy can be saved.

The present invention discloses an apparatus and a method for testing the permeability degradation law of a sponge city permeable pavement. An upper sleeve is connected with the upper part of a lowersleeve; a rubber sleeve is arranged in the upper sleeve; a to-be-tested permeable pavement test piece is arranged in the rubber sleeve; a first test port is arranged on the sidewall of the upper sleeve, and a second test port is arranged on the sidewall of the lower sleeve; the first test port and the second test port are communicated with a pressure measuring tube; a sloping plate is arranged inthe lower sleeve; a water outlet is opened on the sidewall of the lower sleeve; the second test port is arranged above the sloping plate; the water outlet is arranged at the lowest end of the slopingplate; one end of a water outlet pipe is communicated with the water outlet, and the other end of the water outlet pipe is arranged above a filter screen; the filter screen is fixed at a top opening position of a water collection tank; and a simulated rainfall system is connected with the inlet of a nozzle through a flow meter. According to the apparatus and method provided by the present invention, permeability deterioration of permeable materials under different plugging materials and different rainfall conditions can be tested.

The invention discloses a fired water-permeable paving brick based on used sodium silicate sand and a preparation method of the paving brick and belongs to the technical field of comprehensive utilization of industrial solid waste and road building materials. The fired water-permeable paving brick based on the used sodium silicate sand is prepared from 100 parts of raw materials in total as follows: 50-85 parts of industrial solid waste, that is, the used sodium silicate sand, produced in the casting industry, 5-20 parts of coal gangue, 3-15 parts of clay, 2-5 parts of sodium silicate, 3-15 parts of glass powder and the balance of water. The fired water-permeable paving brick based on the used sodium silicate sand has the characteristics as follows: (1) problems that a large amount of used sodium silicate sand produced in the casting industry is stacked and causes pollution to the ecological environment is solved; (2) the firing temperature of the fired water-permeable paving brick based on the used sodium silicate sand can be reduced to 1000 DEG C-1150 DEG C, and the energy consumption is reduced; (3) silica sand resources can be saved, the paving brick conforms to industrial policies of the nation in energy conservation, emission reduction and environmental protection and is convenient to popularize and apply.

The invention relates to a water-permeable paving (1), for application on a ground. The upper part (6) of the paving (1) comprises a combination of compacted mineral aggregate and organic adhesives. Said paving (1) has a multilayered structure with an upper part (6) and a lower part (2), whereby the lower part (2) comprises at least one layer of sand (4) on the side of the ground and one layer of gravel (5) on the side of the upper part, the average size kSchotter of the fine particles being 5 mm. The invention also relates to a method for producing said paving.

The invention relates to a pervious concrete paving system with penetration and drainage guide tubes. The system comprises a pervious concrete layer, penetration and drainage guide tubes, a porous cement stabilized macadam base layer, a graded gravel macadam layer, a roadbed layer and a catch basin, wherein the roadbed layer, the grading gravel macadam layer, the porous cement stabilized macadam base layer and the pervious concrete layer are paved from bottom to top in sequence; the penetration and drainage guide tubes are buried inside the pervious concrete layer and extend into the catch basin. The pervious concrete paving system with the penetration and drainage guide tubes is simple in structure, can effectively increase the porosity of permeable pavement and improves the rainwater retaining and drainage capability.

The invention relates to a permeable pavement structure. The permeable pavement structure comprises a ground water collection layer, which is formed by arranging longitudinal tiles, a filtering layer, which is made of a permeable material, a rainwater collection layer, which is internally provided with a drainage blind ditch, a cushion ply and an original subgrade layer from the top to bottom in sequence, wherein the filtering layer further comprises an upper layer of levelling blanket and a lower layer of substrate. The permeable pavement structure aims at the vices of easiness in influencing water permeability, higher cost, narrower lawn mixed pavement application surface and the like of the conventional permeable pavement, regular materials, such as the tiles and gravels, are applied to carry out collection operation of rainwater on the pavement, and through setting an underground laminar water permeating and collection structure, collection or infiltration of the rainwater can be completed. The permeable pavement structure has the characteristics of strong water permeability, attractive appearance, wide application and the like.

The invention discloses a permeability testing method of a water-permeable paving material. The method comprises the following steps of: (1) preparing a sample, namely designing the sample in a mixing proportion according to the requirement of different porosities, preparing the sample and maintaining the sample; (2) wetting the sample to be used for testing, and wiping away the residual water bead; (3) coating seepage-proofing materials on side walls at the periphery of the sample; (4) performing a water spraying test above the sample, wherein one part of water forms surface runoff on the sample and the other part of water permeates through the sample to form seepage; and (5) observing the water spraying flow, the surface runoff flow and the seepage flow, changing the size of the spraying water flow, and measuring the maximum value of the seepage flow to obtain the measured permeability coefficient. The method has the advantages that: the permeability test of the water-permeable paving material under the rainfall imitation condition can be realized, and the size of the imitated rainfall and the thickness of the water-permeable paving material can be adjusted.

Systems and methods for a permeable pavement system are described. The permeable pavement system includes blocks designed to facilitate water seepage between the blocks and to permit water storage within the blocks. The blocks may be cabled together to create paving units that facilitate installation and maintenance of the pavement system. The permeable pavement system may also be heated to a predetermined range with one of electrical energy and hydronic heating.

The invention relates to a permeable pavement system for weakly-permeable soil regions. The invention is characterized in that the system comprises a permeation promoting layer, a rubble layer and a water permeable layer which are paved from bottom to top. The permeation promoting layer contains several permeation promoting holes which vertically pass through the permeation promoting layer. The permeation promoting holes are filled with pebbles and rubbles. The permeable pavement system is suitable for weakly-permeable soil regions and has good engineering application value. By the system, rain gathered on the pavement can be effectively reduced, flood disasters can be minimized, pollution to soil and underground water can be decreased, water environment conditions can be improved, load for sewage treatment plants due to runoff pollution can be lowered, and supplementary amount of underground water can be increased. The system is also one of technical measures for construction of a sponge city.

The invention discloses an experimental facility for multi-medium percolation and purification of urban rainfall runoff. The experimental facility comprises a shell, header tanks, a water supply device, a permeable paving layer, a coal cinder layer, a multi-medium filtering layer, a natural soil layer and a base, wherein the shell is arranged above the base; the natural soil layer, the multi-medium filtering layer, the coal cinder layer and the permeable paving layer are laid from bottom to top in sequence from the bottom in the shell; and the header tanks are respectively arranged in the base and medium layers in the shell. The purification of the water quality of the rainwater runoff is finished in virtue of natural flow of the rainwater runoff fully, and through the adjustment of mediums in the medium layers, the percolation and purification scheme with high purification efficiency can be accurately proposed, and the scientific evidence is provided for manufacturing a rainwater purification device.

The invention relates to a preparation method of a light-emitting water-permeable paving material. The reparation method of the light-emitting water-permeable paving material comprises the following steps: preparing a base layer, uniformly mixing cement, aggregates, water and a water reducer in a mass ratio of 1 to (4-5) to (0.25-0.45) to (0-0.2), and pressing; preparing a surface layer: uniformly mixing cement, aggregates, water, a toner and a water reducer in a mass ratio of 1 to (3-5) to (0.25-0.45) to (0-0.03) to (0-0.2); and preparing a light-emitting layer from water-permeable resin, long afterglow photoluminescence material, an anti-settling agent, light reflecting powder, a light diffusion agent, a diluent and a coupling agent, and the surface layer is coated with the light-emitting layer in a brushing or spraying manner. The light-emitting water-permeable paving material has a good sealing action to cement gel materials, and the problems that an ordinary cement paving material at present can easily fade and alkalify again, a landscape decoration effect at night is insufficient, and the like can be well solved.

The invention relates to a method and a special device for researching a rapid rainwater infiltration law of different water permeable paving materials during rainfall. The method is characterized by comprising the following steps of: 1, packing a column according to parameters such as structure and thickness of each layer of a pavement type to be researched, wherein the final success of a test is directly influenced by the packing quality of the column; 2, reconstructing a rainfall surface of an artificial rainfall device according to the shape of an underlying surface of the packed column and checking the sealing property of a rubber plug on a rainfall bottom plate; and 3, fitting relation between the water level of a supercharging column of the artificial rainfall device and rainfall strength. The method and the special device are applicable to scientific research; according to the method, artificial rainfall, runoff generation and infiltration are combined, and rainfall production under various conditions and a dissipation law are considered; the device has the advantages that: the capital consumption is low, and the operation is easy; an in-situ condition can be simulated to the greatest extent; the influence of weather conditions can be avoided; rainfall can be performed at a fixed time; and the runoff generation and runoff conditions of the underlying surface are researched.

The invention provides a permeable pavement device and a corresponding water drainage method thereof. The permeable pavement device comprises at least one water storage module; the upper surface of the water storage module comprises at least two water permeable holes (1); water storage cavities (10) are included under the water permeable holes (1); floaters (11) are arranged in the water storage cavities (10); the floaters (11) are connected with movable columns (9); the movable columns (9) are embedded into the water permeable holes (1); and the movable columns (9) move up and down within the water permeable holes (1) according to different water levels. The permeable pavement device has the main innovation points that the water storage cavities are formed in the water storage module, an upper framework of the water storage module bears a load, and therefore, the purpose of enhancing the strength of a permeable pavement is realized; and as the structure adopts an integrated structure and a design of the water permeable holes, pollutants can be intercepted, the blockage can be reduced as much as possible, and the service life of the pavement is prolonged.

The invention discloses a composite water storage-drainage eco-friendly floor. Multiple garden inspection wells are arranged in a green space on the composite water storage-drainage eco-friendly floor. A permeable brick layer, a permeable paving layer, a cast-in-place permeable layer, a permeable base layer and a tamped soil layer are orderly connected to a road on the composite water storage-drainage eco-friendly floor from top to bottom. Multiple road inspection wells are arranged among vertical sections of the permeable brick layer, the permeable paving layer, the cast-in-place permeable layer, the permeable base layer and the tamped soil layer. The composite water storage-drainage eco-friendly ground has a simple structure, is convenient for construction, can be used flexibly, has a low cost, and has effects of reducing ground ponding, relieving urban heat island effects, saving water and energy, reducing noise and absorbing dust.

The invention discloses a method for preparing a water-permeable brick from pottery clay. The method comprises the following steps: mixing and grinding one or more of the following raw materials: 15-85% of clay, 0-30% of bauxite tailings, 0-60% of silicalite, 0-80% of weathered rocks and 0-20% of calcareous rocks according to the mass percentage, and controlling the screen residue rate of powder of 200 meshes to be less than 3%; directly granulating the powder to prepare ceramic powder particles, screening the particles to obtain graded particles, and drying the graded particles until the water content of the dried particles is 6-13 mass%; carrying out compression molding on the dried particles at a compression ratio of 0.38-0.48; and drying the obtained compressed green body, and firingthe dried compressed green body at 1100-1180 DEG C to obtain the sintered water-permeable material. The preparation method has the advantages of realization of high value-added value batch use of thepottery clay and tailings, simplicity, easiness in implementation, and facilitation of realization of industrial production; and the prepared sintered water-permeable brick can be used as a sponge city water-permeable paving material, a filter material and an adsorption material, has a flexural strength of above 4.5 MPa and a water permeability coefficient of 2 * 10<-2> cm/s, and has excellent performances.

The present invention relates to a water-permeable luminescent concrete, and a road paving system including the same. The water-permeable luminescent concrete comprises a base layer and a luminescentlayer laid on the base layer; the base layer is made from cement, waste ceramic aggregates, stone aggregates, water, a water reducing agent and an active admixture according to a volume ratio of (1-8):7:3:(1-5):(0.01-0.05):(0.1-0.5); and the luminescent layer is made from a resin luminescent material, a long-afterglow photoluminescent material, an anti-settling agent and a coupling agent accordingto a volume ratio of (5-10):(20-30):(0.1-4): (0.1-0.8). The water-permeable luminescent concrete combines good luminescence with good water permeability, can meet the demand for water-permeable paving materials in modern urban construction, can replace street lamps for illumination, also can enhance the ornamental view of the night landscape, and at the same time, and has a good strength.