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Novel permeable concrete pavement surface layer and a construction method thereof

A technology of permeable concrete and concrete pavement, which is applied to cohesive pavement paved on site, roads, roads, etc. It can solve the problems of uneven distribution of aggregates, threshing of the surface layer, and low strength, and achieves expanded application range and high coloring power , Strong covering effect

Active Publication Date: 2018-12-18
陕西昊然海绵城市建设技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the investigation, the permeable concrete surface, as a new type of road structure that is not fully mature, has problems such as uneven distribution of aggregates, impermeability, low strength, and surface threshing.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The new permeable concrete pavement surface layer of this embodiment includes a wear-resistant layer with a thickness of 0.1 cm, a colored layer with a thickness of 0.3 cm, an upper layer with a thickness of 4 cm, and a lower layer with a thickness of 7 cm, which are sequentially arranged from top to bottom; The wear-resistant layer is composed of dipropylene polyurethane (containing hydroxyl groups); the colored layer is composed of dark red iron oxide pigments; the upper layer is composed of components with the following mass concentrations: tap water 80kg / m 3 , PO42.5 grade cement 285kg / m 3 , Aggregate 1610kg / m 3 , Polymer RPP 20kg / m 3 , Sand 20kg / m 3 , Point-S polycarboxylic acid retarder and superplasticizer 2.2kg / m 3 The porosity of the upper layer is 15%, the mass concentration of the water is 28.1% of the mass concentration of the cement, the sand is medium sand, the fineness modulus is 2.4-3.0, and the mud content is 0.9wt%. The material is granite gravel with a p...

Embodiment 2

[0034] The new permeable concrete pavement surface layer of this embodiment includes a wear-resistant layer with a thickness of 0.3 cm, a colored layer with a thickness of 0.8 cm, an upper layer with a thickness of 5 cm, and a lower layer with a thickness of 9 cm arranged in sequence from top to bottom; The wear-resistant layer is composed of dipropylene polyurethane (containing hydroxyl groups); the colored layer is composed of dark red iron oxide pigments; the upper layer is composed of components with the following mass concentrations: tap water 90kg / m 3 , PO42.5 grade cement 280kg / m 3 , Aggregate 1630kg / m 3 , Polymer RPP 22kg / m 3 , Sand 23kg / m 3 , Point-S polycarboxylic acid retarder and superplasticizer 2.3kg / m 3 The porosity of the upper layer is 20%, the mass concentration of the water is 32.1% of the mass concentration of the cement, the sand is medium sand, the fineness modulus is 2.4-3.0, and the mud content is 1.2wt%. The material is granite gravel with a particle size...

Embodiment 3

[0042] The new permeable concrete pavement surface layer of this embodiment includes a wear-resistant layer with a thickness of 0.2 cm, a colored layer with a thickness of 0.6 cm, an upper layer with a thickness of 4.5 cm, and a lower layer with a thickness of 8 cm, which are sequentially arranged from top to bottom. The wear-resistant layer is composed of dipropylene polyurethane (containing hydroxyl groups); the colored layer is composed of dark red iron oxide pigments; the upper layer is composed of the following mass concentration components: tap water 85kg / m 3 , PO42.5 grade cement 283kg / m 3 , Aggregate 1620kg / m 3 , Polymer RPP 23kg / m 3 , Sand 22kg / m 3 , Point-S polycarboxylic acid retarding superplasticizer 2.25kg / m 3 The porosity of the upper layer is 18.5%, the mass concentration of the water is 30% of the mass concentration of the cement, the sand is medium sand, the fineness modulus is 2.4-3.0, and the mud content is 2.0wt%. The material is granite gravel with a particl...

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Abstract

The invention discloses a novel permeable concrete pavement surface layer, comprising an abrasion-resistant layer, a coloring layer, an upper layer and a lower layer arranged in sequence from the topto the bottom; The wear-resistant layer is composed of double propylene polyurethane (containing hydroxyl group); The coloring layer is composed of iron oxide pigment; The upper layer is composed of water, cement, aggregate, modifier, sand and water reducing agent; The lower layer is composed of water, cement, aggregate, modifier, sand, air entraining agent and water reducing agent; The inventionalso discloses a novel construction method of a permeable concrete pavement surface layer. The pavement surface layer of the invention adjusts the wear-resistant layer, The colored layer, the composition proportion and thickness of the upper layer and the lower layer, obtains the lower layer and the upper layer with higher porosity, lower strength and lower porosity and higher strength, which notonly improves the water permeability of the pavement surface layer, but also meets the overall strength requirements of the pavement surface layer, avoiding the threshing of the pavement surface layerand the damage of the colored layer; The method of the invention is simple and easy to be popularized.

Description

Technical field [0001] The invention belongs to the technical field of building material preparation, and specifically relates to a novel permeable concrete pavement surface layer and a construction method thereof. Background technique [0002] With the construction of sponge cities and urban ecological civilization, in order to supplement groundwater, reduce road surface water, and reduce the risk of urban waterlogging. Permeable concrete pavement surfaces are increasingly used on urban sidewalks, non-motorized vehicle lanes, garden greenways, and community roads. According to the investigation, the permeable concrete surface, as a new road structure that is not fully mature, has problems such as uneven distribution of aggregates, imperviousness, low strength, and surface threshing. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a new type of permeable concrete pavement surface in view of the above-mentioned shortcomin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C11/22E01C7/14E01C7/35C04B28/04
CPCC04B28/04C04B2111/0075E01C7/142E01C7/356E01C11/226C04B14/02C04B2103/302C04B2103/0068C04B2103/304C04B14/06
Inventor 何怡宋盼魏娟婷
Owner 陕西昊然海绵城市建设技术有限公司
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