Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Pervious concrete and preparation method thereof

A permeable concrete and concrete technology, applied in the field of building materials, can solve the problems of structural damage, affecting strength, and poor freeze-thaw resistance of permeable concrete, and achieve the effects of increasing concentration, avoiding cracking, and improving the ability to prevent early freezing damage

Inactive Publication Date: 2018-06-22
湖北恒利建材科技有限公司
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem of poor freeze-thaw resistance of permeable concrete in the prior art, resulting in structural damage and affecting its strength in the later stage, and provides a new permeable concrete that improves the strength of permeable concrete and avoids cracking and even collapse The problem

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
  • Pervious concrete and preparation method thereof
  • Pervious concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A permeable concrete, including the following raw materials configured by weight: Ordinary Portland cement 200kg / m 3 , coarse aggregate 1250kg / m 3 , mineral admixture 150kg / m 3 , EVA emulsion 10kg / m 3 , enhancer 5kg / m 3 And composite antifreeze, the weight of the composite antifreeze is 1% of the total weight of concrete; the water-cement ratio of the concrete is 0.2;

[0028] The composite antifreeze agent comprises triethanolamine, sulfamate and lignosodium, and the mass ratio of the triethanolamine, sulfamate and lignosodium is 5:1:1.

[0029] In this example, the ordinary Portland cement is P·O 52.5, and its strength is higher; the coarse aggregate is selected from crushed stones with a particle size within the range of 9 to 12 mm, and its mud content is ≤0.5%, and the needle shape is less than 10%, the mineral admixture is sulfur-fixed ash.

Embodiment 2

[0031] A permeable concrete, including the following raw materials configured by weight: Ordinary Portland cement 300kg / m 3 , coarse aggregate 1350kg / m 3 , mineral admixture 280kg / m 3 , EVA emulsion 15kg / m 3 , enhancer 5 ~ 10kg / m 3 And composite antifreeze, the weight of the composite antifreeze is 2.5% of the total weight of concrete; the water-cement ratio of the concrete is 0.31;

[0032] The compound antifreeze agent comprises triethanolamine, sulfamate and lignosodium, and the mass ratio of the triethanolamine, sulfamate and lignosodium is 4:1:1.

[0033] In this example, the ordinary Portland cement is P·O 52.5, and its strength is higher; the particle size of the coarse aggregate is 9-12mm, the mud content is ≤0.5%, and the crushed stones of needle-shaped <10%, mineral The admixture is at least one kind of slag.

Embodiment 3

[0035] A permeable concrete, including the following raw materials configured by weight: Ordinary Portland cement 220kg / m 3 , coarse aggregate 1300kg / m 3 , mineral admixture 210kg / m 3 , EVA emulsion 12kg / m 3 , enhancer 8kg / m 3 And composite antifreeze, the weight of the composite antifreeze is 2% of the total weight of concrete; the water-cement ratio of the concrete is 0.25;

[0036] The composite antifreeze agent includes triethanolamine, sulfamic acid salt and lignosodium, and the mass ratio of the triethanolamine, sulfamic acid salt and lignosodium is 6:1:1.

[0037] In this example, the ordinary Portland cement is P·O 52.5, and its strength is higher; the particle size of the coarse aggregate is 9-12mm, the mud content is ≤0.5%, and the crushed stones of needle-shaped <10%, mineral Admixtures are slag and sulfur-fixed ash.

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 sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses pervious concrete and a preparation method thereof, and belongs to the technical field of a building material. The pervious concrete is prepared from the following raw materials in proportion by weight: 200 to 300kg / m<3> of ordinary Portland cement, 1250 to 1350kg / m<3> of coarse aggregate, 150 to 280kg / m<3> of mineral admixtures, 10 to 15kg / m<3> of EVA emulsion, 5 to 10kg / m<3> of enhancers and composite anti-freezing agents, wherein the weight of the composite anti-freezing agents account for 1 to 2.5 percent of the total weight of the concrete; the water cement ratio of the concrete is 0.2 to 0.31; the composite anti-freezing agents are prepared from triethanolamine, sulfamate and lignosulphonate according to a mass ratio of (5 to 8):(1 to 2):(1 to 2). The perviousconcrete has the advantages that a good pervious effect is achieved; the compressive strength is high; the freezing and thawing resistant performance is good.

Description

technical field [0001] The invention relates to concrete, in particular to a permeable concrete and a preparation method thereof, belonging to the technical field of building materials. Background technique [0002] Permeable concrete is a mixture of cement, water, and cementing materials blended with aggregate, and has a certain porosity. When it is made into concrete pavement, slope protection and its products, it can allow rainwater to flow into the ground, effectively replenish groundwater, alleviate some urban environmental problems such as the sharp drop in the city's groundwater level; and can effectively eliminate oil compounds on the ground, etc. Harm to environmental pollution; at the same time, it is an excellent pavement material that protects groundwater, maintains ecological balance, and can alleviate the urban heat island effect; it has special features in the benign development of the human living environment, urban rainwater management, and water pollution p...

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
IPC IPC(8): C04B28/04C04B111/40
CPCC04B28/04C04B2111/00017C04B2111/00284C04B2111/00732C04B2111/0075C04B2111/00767C04B2111/40C04B2201/50C04B14/04C04B18/062C04B24/2623C04B24/122C04B24/16C04B24/18C04B2103/0068C04B38/0041C04B18/141
Inventor 黄文明仝浩胜魏运超胡从文陈明中
Owner 湖北恒利建材科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com