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Concrete water-permeable road surface as well as paving method thereof and maintenance and restoration method thereof

A technology for permeable pavement and concrete, applied in road repair, pavement, road, etc., can solve the problems of water shortage, water environment pollution, water ecology deterioration, etc., to ensure physical and mechanical properties and durability, ensure water permeability, avoid The effect of dislocation deformation

Active Publication Date: 2017-02-08
江苏德智重工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has brought serious problems to the urban environment: 70%-80% of the rainfall forms runoff discharge, and only 20%-30% of the rainwater can seep into the ground, resulting in the adverse consequences of "every rain will be flooded, and there will be drought after rain". It also brings a series of problems such as the deterioration of water ecology, the shortage of water resources, the pollution of water environment, and the lack of water security.
[0005] At present, after long-term use of conventional permeable bricks, the surface and pores are easy to fall into various dirt to form blockages and cannot be automatically removed, thus losing the permeable effect and poor ecological effect

Method used

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  • Concrete water-permeable road surface as well as paving method thereof and maintenance and restoration method thereof
  • Concrete water-permeable road surface as well as paving method thereof and maintenance and restoration method thereof
  • Concrete water-permeable road surface as well as paving method thereof and maintenance and restoration method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1: The base layer is prepared from aggregates with larger particle sizes, including 18% cement, 52% stones with a particle size of 5-8mm, 27% stones with a particle size of 8-10mm and 3% additives in weight percentage ; Additives used in the base layer include silica fume 2.0%, acrylic acid emulsion 0.8%, polycarboxylate superplasticizer 0.2%.

[0046] The surface layer is made of aggregates with smaller particle sizes, including 20% ​​cement, 45% quartz sand with a particle size of 1-2mm, 30% stones with a particle size of 2.5-3.5mm, 1.5% pigment and 3.5% additives; the additives used in the surface layer include 1.7% silica fume, 1.6% acrylic emulsion, and 0.2% polycarboxylate superplasticizer.

[0047] The water permeability coefficient of the permeable concrete pavement brick of the invention is more than or equal to 0.4mm / s, the flexural strength reaches more than or equal to 5.0 MPa, and the frost resistance (25 times) is qualified.

Embodiment 2

[0048] Embodiment 2: The base layer is prepared from aggregates with larger particle sizes, including 15% cement, 43% stones with a particle size of 5-8mm, 40% stones with a particle size of 8-10mm and 2% additives in weight percentage ; Additives used in the base layer include silica fume 1.0%, acrylic acid emulsion 0.8%, polycarboxylate superplasticizer 0.2%.

[0049] The surface layer is made of aggregates with smaller particle sizes, including 15% cement, 40% quartz sand with a particle size of 1-2mm, 40% stones with a particle size of 2.5-3.5mm, 1.5% pigment and 3.5% additives; the additives used in the surface layer include 2.0% silica fume, 1.3% acrylic emulsion, and 0.2% polycarboxylate superplasticizer.

[0050] The permeable concrete pavement brick of the invention has a water permeability coefficient of ≥0.3mm / s and a flexural strength of ≥4.0MPa.

Embodiment 3

[0051] Embodiment 3: The base layer is prepared from aggregates with larger particle sizes, including 20% ​​cement, 56% stones with a particle size of 5-8mm, 20% stones with a particle size of 8-10mm and 4% additives in weight percentage ; Additives used in the base layer include silica fume 2.0%, acrylic acid emulsion 1.8%, polycarboxylate superplasticizer 0.2%.

[0052] The surface layer is made of aggregates with smaller particle sizes, including 18% cement, 48% quartz sand with a particle size of 1-2mm, 30% stones with a particle size of 2.5-3.5mm, 1.5% pigment and 2.5% additives; the additives used in the surface layer include 1.5% silica fume, 0.8% acrylic emulsion, and 0.2% polycarboxylic acid superplasticizer.

[0053] The water permeability coefficient of the permeable concrete pavement brick of the invention is ≥0.35mm / s, and the flexural strength reaches ≥4.5MPa.

[0054] The additives used in the base layer and the surface layer include active mixed material, poly...

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Abstract

The invention discloses a concrete water-permeable road surface as well as a paving method thereof and a maintenance and restoration method thereof, relates to the field of road construction, and particularly relates to a road surface with a water-permeable requirement, which is applicable to an urban municipal-administration footway, a garden-landscape pathway, a non-heavy-load road-surface plaza and the like, a paving method thereof and a maintenance and restoration method thereof. The invention provides a concrete water-permeable road surface which is good in water permeability, is stable and firm to pave and mount, and can be repeatedly restored, a paving method thereof and a maintenance and restoration method thereof. A road-surface brick comprises a rectangular brick body; four corners of the brick body are provided with circular-arc grooves respectively, so that the four circular-arc grooves form a circular hole used for placing a water-permeable filling body when four brick bodies are spliced. Two side surfaces of the brick body are both provided with convex blocks and grooves; the two side surfaces each are provided with two grooves. Three side surfaces of the brick body are all provided with convex blocks and grooves; one side surface is provided with two grooves. By using the concrete water-permeable road surface as well as the paving method thereof and the maintenance and restoration method thereof, the key problems of a water-permeable concrete road-surface brick in technical and application aspects are solved; the application of the water-permeable concrete road-surface brick to the road construction in China is promoted.

Description

technical field [0001] The invention relates to the field of road construction, in particular to a pavement suitable for municipal sidewalks, garden landscape trails and non-heavy-loaded pavement squares in urban areas with water permeability requirements, its laying method and its maintenance and repair method. Background technique [0002] In the process of rapid urbanization, due to the high intensity of urban development, a large number of impermeable materials such as granite, marble, glazed tiles, cement and asphalt have changed the original natural ecological background and hydrological characteristics, destroying the The natural "sponge body". It has brought serious problems to the urban environment: 70%-80% of the rainfall forms runoff discharge, and only 20%-30% of the rainwater can seep into the ground, resulting in the adverse consequences of "every rain will be flooded, and there will be drought after rain". It has also brought about a series of problems such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C15/00E01C5/04E01C19/52E01C11/22E01C23/00C04B28/00
CPCC04B28/00C04B2111/00284C04B2111/00612C04B2111/0075C04B2201/50E01C11/225E01C19/52E01C23/00C04B14/02C04B18/146C04B24/2641C04B2103/302C04B14/06C04B2103/54
Inventor 张磊蕾王武祥陈晋栋廖礼平王爱军
Owner 江苏德智重工有限公司
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