Water-retaining and cooling pavement material and application thereof

A pavement material and cement technology, applied in the field of pavement materials, can solve the problems of weakening urban heat conduction effect, aggravating urban heat island effect, and high pavement temperature, so as to enhance water absorption and water retention capacity, suitable for construction workability, and improve overall strength and performance effect

Inactive Publication Date: 2014-01-01
CHANGAN UNIV
View PDF2 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the small heat capacity and fast heat absorption of current pavement materials, which lead to high road and pavement temperatures and aggravate the urban heat island effect, one of the purposes of the present invention is to provide a pavement material with water retention and cooling functions to reduce road and pavement temperature. Road surface temperature, thereby reducing the urban heat conduction effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Water-retaining and cooling pavement material and application thereof
  • Water-retaining and cooling pavement material and application thereof
  • Water-retaining and cooling pavement material and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0034] The raw materials used for preparing the serum in this embodiment are:

[0035] Expanded perlite powder: expanded perlite powder produced by Longhui Perlite Factory in Pingqiao District, Xinyang City. The pass rate of 2.5mm sieve is greater than 95%, and the pass rate of 0.15mm sieve is greater than 92%. Its main chemical composition is shown in Table 1. Show.

[0036] Table 1

[0037] content SiO 2 Al 2 o 3 FeO CaO Loss on ignition index% 72 13 0.3 0.36 4.9

[0038] Cement: Ordinary Portland cement produced by Shaanxi Qinling Cement Co., Ltd. has qualified stability and a strength grade of 42.5R, and its performance indicators meet the requirements of "General Portland Cement" (GB175-2007);

[0039] Sepiolite powder: Sepiolite powder produced by Hebei Yixian Sepiolite Factory, the particle size is 200-300 mesh, and the main chemical composition is shown in Table 2.

[0040] Table 2

[0041] Element SiO 2 Al 2 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
power levelaaaaaaaaaa
particle diameteraaaaaaaaaa
flexural strengthaaaaaaaaaa
Login to view more

Abstract

The invention discloses a water-retaining and cooling pavement material and an application thereof. The water-retaining and cooling pavement material is prepared from expanded perlite powder, cement, sepiolite powder, quartz sand powder, water-absorbent resin and a water reducing agent in an appropriate mass ratio. The water-retaining and cooling pavement material is applied to surfacing, and porous asphalt mixture or a porous cement concrete material with the void ratio of 20-30% is combined, so that finishing strength and performance of the pavement material are improved, and the aim of lowering temperatures of a pavement and a pavement surface is achieved.

Description

technical field [0001] The invention belongs to the technical field of pavement materials, and in particular relates to a pavement material with the function of water retention and cooling and its application. Background technique [0002] The urban heat island effect is that the temperature in the urban area is significantly higher than that in the outer suburbs. With the continuous development and expansion of the city, this comprehensive phenomenon of microclimate changes will become more and more obvious. The reasons for its formation mainly include the characteristics of the underlying surface of the city, greenhouse gas emissions, man-made heat release, and air pollution. The thermal properties of the ground. [0003] Urban asphalt pavement has a small heat capacity and absorbs heat quickly. Under the same solar radiation conditions, the temperature rises rapidly. For example, in summer, when the tree canopy or lawn temperature reaches 30°C, the temperature of the co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B14/18
Inventor 蒋玮沙爱民肖晶晶王振军
Owner CHANGAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap