Long-life water permeable plate easy to recover and keep water permeability

A permeable board and long-life technology, applied in climate change adaptation, pavement details, construction, etc., can solve the problems of permeable channel blockage, easy breakage and blockage, low flexural strength, etc., to ensure durable performance and long-term water permeability The effect of maintaining and easily recovering water permeability

Inactive Publication Date: 2016-04-06
JIANGXI BEIRONG CIRCULAR MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantages and disadvantages of permeable brick pavement include: "Pervious pavement is suitable for a wide area, easy to construct, can replenish groundwater and has a certain peak flow reduction and rainwater purification effect, but it is easy to block, and there is a risk of being damaged by freezing and thawing in cold areas
Long-term application shows that such permeable channels are easily blocked by dust, mud, vegetation debris or other debris, resulting in a gradual decline in water permeability
Through maintenance methods such as flushing and negative pressure suction, the blockage close to the surface can be removed, but it is difficult to significantly restore the water permeability
[0022] The above-mentioned cement-based permeable bricks and slabs are widely used, because the cost is low, but the flexural strength is low, easy to break and block, and the durability is poor
In addition, its durability against freezing and thawing is poor, so it is not suitable for use in the north
[0023] The above-mentioned resin-based permeable bricks, boards, and resin mortar surface layer are beautiful and have good water filtration effect, but the cost is high, and the weather resistance of the resin is poor, and it is easy to age when used in the open air, and the working life is limited

Method used

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  • Long-life water permeable plate easy to recover and keep water permeability
  • Long-life water permeable plate easy to recover and keep water permeability
  • Long-life water permeable plate easy to recover and keep water permeability

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] In this example, high ductility cement-based composite (HDCC) is used to make permeable panels, corresponding to Figure 1-Figure 3 For the rectangular permeable board shown, the area of ​​the permeable groove or permeable hole is in the range of 10% to 20%. in, figure 1 The permeable channel is a vertical linear permeable groove 12, figure 2 The permeable channel is an oblique circular permeable hole 13, image 3 The permeable channel is a vertical cross-shaped permeable hole 14 .

[0055] The requirements for high ductility cementitious composites (HDCC) are: polyvinyl alcohol fiber reinforced toughened HDCC, standard curing (20 o C. Humidity not less than 95%) 28-day flexural strength not less than 10MPa (40x40x160mm test piece, 3-point bending resistance), compressive strength not less than 50MPa (40x40x160mm test piece).

[0056] The production method of HDCC permeable board: make a model; mix the raw materials cement, fly ash, fine sand, high-efficiency water...

Embodiment 2

[0058] In this example, ultra-high performance concrete (UHPC) is used to make permeable panels, corresponding to Figure 4-Figure 7 For the rectangular permeable board shown, the area of ​​the permeable groove is in the range of 10% to 40%. in, Figure 4 The water-permeable channel is a vertical fold-line type water-permeable groove 15; Figure 5 The water-permeable channel is a vertical curved water-permeable groove 16; Image 6 The permeable channel is a vertical linear permeable groove 12, and there is a rectangular hollow area 17 half the thickness from the lower surface in the vertical direction; Figure 7 The water-permeable channel is a vertical linear water-permeable groove (12), and there is an elliptical hollow area 18 half the thickness of the lower surface in the vertical direction.

[0059] The requirements for ultra-high-performance concrete (UHPC) are: steel fiber reinforced and toughened UHPC, the flexural strength of the standard 28-day curing is not less ...

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Abstract

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.

Description

technical field [0001] The invention relates to a permeable panel used for permeable pavement on the ground and road, especially a permeable panel that is easy to clean up blockages and restore water permeability, and is not easy to break and has excellent freeze-thaw resistance and weather resistance. Background technique [0002] In October 2014, the Ministry of Housing and Urban-Rural Development of China issued the "Technical Guidelines for Sponge City Construction - Construction of Rainwater System for Low-impact Development (Trial)" which pointed out: "Permeable brick pavement and permeable cement concrete pavement are mainly suitable for squares, parking lots, etc. Fields, sidewalks, and roads with small traffic volume and load, such as building and community roads, non-motorized lanes of municipal roads, etc.,... ". The advantages and disadvantages of permeable brick pavement include: "Permeable pavement is suitable for a wide area, easy to construct, can replenish g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C11/22C04B28/00
CPCC04B28/00C04B2111/00146E01C11/225C04B18/08C04B14/06C04B2103/302C04B16/0641C04B18/146C04B14/48Y02A30/30
Inventor 赵筠
Owner JIANGXI BEIRONG CIRCULAR MATERIALS CO LTD
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