Porous vegetation concrete capable of improving vegetation performance

A technology of planting concrete and performance, applied in the field of building materials, can solve the problem of high PH value of planting concrete, achieve the effect of delaying hydration, improving planting performance, and improving compressive strength

Pending Publication Date: 2022-04-26
广西壮族自治区水利科学研究院
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the pH value of planting concrete is too high, the present invention provides a porous planting concrete capable of improving planting performance and a preparation method thereof

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
  • Porous vegetation concrete capable of improving vegetation performance
  • Porous vegetation concrete capable of improving vegetation performance
  • Porous vegetation concrete capable of improving vegetation performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of porous planting concrete that can improve planting performance is made of the following mass fractions of raw materials: 193 parts of cement, 1335 parts of recycled coarse aggregate, 10 parts of emulsion and 58 parts of water; the mass ratio of the emulsion is 4:4: 2 styrene-acrylic emulsion, VAE emulsion and styrene-butadiene emulsion.

[0019] The cement is a low-alkalinity sulphoaluminate cement with a density of 2790kg / cm 3 , specific surface area 436m 2 / kg, the standard consistency water consumption is 32%, and the 28d compressive and flexural strengths are 47.0MPa and 7.5MPa respectively.

[0020] The regenerated coarse aggregate is broken from construction waste demolition, with a particle size of 20-40mm and an apparent density of 2350kg / m 3 , Bulk density 1362kg / m 3 , crushing the index by 17.3%.

Embodiment 2

[0022] A kind of porous planting concrete that can improve the planting performance is made of the raw materials of the following mass fractions: 193 parts of cement, 1335 parts of recycled coarse aggregate, 10 parts of emulsion and 58 parts of water; the mass ratio of the emulsion is 3:4: 3 styrene-acrylic emulsion, VAE emulsion and styrene-butadiene emulsion.

[0023] The cement is a low-alkalinity sulphoaluminate cement with a density of 2790kg / cm 3 , specific surface area 436m 2 / kg, the standard consistency water consumption is 32%, and the 28d compressive and flexural strengths are 47.0MPa and 7.5MPa respectively.

[0024] The regenerated coarse aggregate is broken from construction waste demolition, with a particle size of 20-40mm and an apparent density of 2350kg / m 3 , Bulk density 1362kg / m 3 , crushing the index by 17.3%.

Embodiment 3

[0026] A kind of porous planting concrete that can improve the planting performance is made of the raw materials of the following mass fractions: 193 parts of cement, 1335 parts of recycled coarse aggregate, 10 parts of emulsion and 58 parts of water; the mass ratio of the emulsion is 4:2: 4 styrene-acrylic emulsion, VAE emulsion and styrene-butadiene emulsion.

[0027] The cement is a low-alkalinity sulphoaluminate cement with a density of 2790kg / cm 3 , specific surface area 436m 2 / kg, the standard consistency water consumption is 32%, and the 28d compressive and flexural strengths are 47.0MPa and 7.5MPa respectively.

[0028] The regenerated coarse aggregate is broken from construction waste demolition, with a particle size of 20-40mm and an apparent density of 2350kg / m 3 , Bulk density 1362kg / m 3 , crushing the index by 17.3%.

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
particle diameteraaaaaaaaaa
densityaaaaaaaaaa
densityaaaaaaaaaa
Login to view more

Abstract

The invention discloses porous vegetation concrete capable of improving vegetation performance. The porous vegetation concrete is prepared from the following raw materials in parts by mass: 180-200 parts of cement, 1200-1400 parts of recycled coarse aggregate, 8-15 parts of emulsion and 40-70 parts of water, the emulsion is composed of a styrene-acrylic emulsion, a VAE emulsion and a styrene-butadiene emulsion. The mixed emulsion composed of the styrene-acrylic emulsion, the VAE emulsion and the styrene-butadiene emulsion is added, so that the hydration reaction of C2S can be delayed, and further the hydration of sulphoaluminate water cement is delayed; meanwhile, in the hydration process, Al (OH) 3 formed by the modified cement paste doped with the emulsion is reduced along with the increase of the mixing amount of the emulsion, so that the pH value of the cement is reduced. The recycled aggregate plant-growing concrete modified by the emulsion can greatly reduce the pH value of a pore solution, improves the plant-growing performance of the concrete, can adapt to the growth of green plants, can achieve the effects of greening the environment and restoring ecology for a long time, and also can improve the compressive strength of the plant-growing concrete.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a porous plant-growing concrete capable of improving plant-growing performance. Background technique [0002] Vegetative concrete is porous concrete and its products that can adapt to the growth of green plants and meet the requirements of green plant operations. There are continuous pores inside this type of concrete, and water, air, etc. can easily pass through. It plays an important role in enhancing ground heat and humidity exchange, regulating temperature and humidity, improving groundwater level, absorbing noise, etc., and has remarkable ecological benefits. [0003] In addition, the pH value of the pore solution of ordinary portland cement concrete is as high as 12-13, while the pH value range suitable for plant growth is 3.5-10. Key issues for performance improvement. However, at present, FeSO is mainly used to reduce the pH value of planting concrete. 4 , o...

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): C04B28/06C04B24/26C04B28/04C04B38/00
CPCC04B28/06C04B40/0039C04B28/04C04B2111/00758C04B2201/50C04B18/16C04B24/2676C04B24/2623C04B22/002C04B38/0074
Inventor 陈建国韩伟栋许现旭刘鲁强黄卓杰黄小兵甘福朱芳坛陈美琴陈耿
Owner 广西壮族自治区水利科学研究院
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