A new type of permeable concrete pavement surface and its construction method

A technology of permeable concrete and concrete pavement, applied in the direction of coagulation pavement, roads, roads, etc., can solve the problems of uneven distribution of aggregates, surface threshing, low strength, etc., to expand the scope of use and high tinting strength , strong covering effect

Active Publication Date: 2021-01-08
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 novel permeable concrete pavement surface layer of the present embodiment comprises that the wear-resisting layer that thickness is 0.1cm, the coloring layer that thickness is 0.3cm, the upper layer that thickness is 4cm and the lower layer that thickness is 7cm that are arranged successively 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 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 polycarboxylate retarding superplasticizer 2.2kg / m 3 , the porosity of the upper layer is 15%, the mass concentration of the water is 28.1% of the cement mass concentration, the sand is medium sand, the fineness modulus is 2.4 to 3.0, and the mud content is 0.9wt%. The material is granite gravel with a particle siz...

Embodiment 2

[0034] The novel permeable concrete pavement surface layer of the present embodiment comprises that the wear-resisting layer that thickness is 0.3cm, the coloring layer that thickness is 0.8cm, the upper layer that thickness is 5cm and the lower layer that thickness is 9cm that are arranged successively 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 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 polycarboxylate retarding superplasticizer 2.3kg / m 3 , the porosity of the upper layer is 20%, the mass concentration of the water is 32.1% of the cement mass concentration, the sand is medium sand, the fineness modulus is 2.4 to 3.0, and the mud content is 1.2wt%. The material is granite gravel with a particle si...

Embodiment 3

[0042] The new permeable concrete pavement surface layer of this embodiment comprises 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 arranged sequentially from top to bottom. The wear-resistant layer is composed of dipropylene polyurethane (containing hydroxyl); the colored layer is composed of dark red iron oxide pigments; the upper layer is composed of the following mass concentrations: 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 polycarboxylate retarding superplasticizer 2.25kg / m 3 , the porosity of the upper layer is 18.5%, the mass concentration of the water is 30% of that of cement, the sand is medium sand, the fineness modulus is 2.4 to 3.0, and the mud content is 2.0wt%. The material is granite gravel with a particle size of 5 mm to 10 mm, wherei...

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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 in particular 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 replenish groundwater, reduce road surface water, and reduce the risk of urban waterlogging. The permeable concrete pavement surface layer is more and more used in urban road sidewalks, non-motor vehicle lanes, garden greenways, and residential roads. According to the investigation, it is found that the pervious concrete surface, as a new road structure that is not fully mature, has problems such as uneven distribution of aggregates, impermeability, low strength, and surface threshing. Contents 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 laye...

Claims

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Application Information

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Patent Type & Authority Patents(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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