Unlock instant, AI-driven research and patent intelligence for your innovation.

High-speed railway plate-type ballastless track self-compaction concrete multifunctional modified material

A technology of self-compacting concrete and slab ballastless track, applied in the direction of track, road, ballast layer, etc.

Inactive Publication Date: 2018-10-23
湖北木之君工程材料有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem of long-term stable maintenance of self-compacting concrete for high-speed railway slab ballastless track for working performance under high temperature, so as to realize the invention by becoming a multifunctional modified material of self-compacting concrete

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] With 85 kilograms of viscosity-modified materials, 33% active ingredient content to be used, 2.2 kilograms of slow-release dispersant powders released to peak time 60 minutes, 7.0 slow-release dispersant powders released to peak time 90 minutes by 33% active ingredient content Kilogram, 33% active ingredient content, 4.6 kilograms of slow-release dispersant powders released to the peak time of 120 minutes, after 1.2 kilograms of slow-setting component sodium gluconate was dropped into the mixer and mixed homogeneously, the multifunctional modified material of Example 1 was obtained finished product.

[0025] Add the above-mentioned multifunctional modified material to the self-compacting concrete at an amount of 30 kg per square meter of self-compacting concrete, and adjust the amount of ordinary polycarboxylate water reducer to make the initial slump expansion of the self-compacting concrete reach 660 mm, the T50 time is 4 seconds. At this time, the amount of water re...

Embodiment 2

[0029] With 85 kilograms of viscosity-modified materials, 33% active ingredient content to be used, 3.0 kilograms of slow-release dispersant powders released to the peak time of 60 minutes, 33% active ingredient content released to the slow-release dispersant powder 6.2 of peak time 90 minutes Kilogram, 33% active ingredient content, 4.6 kilograms of slow-release dispersant powders released to peak time 120 minutes, after 1.2 kilograms of slow-setting component sodium gluconate drop into mixer and mix homogeneously, obtain the multifunctional modified material of embodiment two finished product.

[0030] Using the same self-compacting concrete mix ratio as in Example 1, the multifunctional modified material in Example 2 is also added to the self-compacting concrete in an amount of 30 kg per square concrete, and adjusted by adjusting the amount of water reducer The initial slump expansion of self-compacting concrete reaches 660 mm, and the T50 time is 4 minutes and 30 seconds. ...

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

No PUM Login to View More

Abstract

The invention discloses a high-speed railway CRTSIII-type ballastless track self-compaction concrete multifunctional modified material, which belongs to the field of a building material, and relates to a high-speed railway ballastless track self-compaction concrete technology. According to the invention, the material comprises the following components by mass percentage: 85-90% of a viscosity modified material (ZL 2013 1 0026548.9), 0-2% of a slow release dispersant with a release peak value being 60 min (an effective ingredient, same below); 1-3 % of the slow release dispersant with a releasepeak value being 90 min, 1-2% of the slow release dispersant with the release peak value being 120 min, and 0-3% of a slow setting component. Based on an original invention patent ZL 2013 1 0026548.9, a physical adsorption method is used for transiting liquid slow release component with different speeds for releasing the effective ingredients to powder, the powder is added in the viscosity modified material according to proportion, the slow setting component is assisted, and the problem of maintenance of long-time stabilization of the high-speed railway plate-type ballastless track self-compaction concrete under high temperature work performance can be solved. The material provides a novel approach for maintenance of the work performance stabilization of the self-compaction concrete without an extraordinary special-purpose water reducer.

Description

technical field [0001] The invention belongs to the field of building materials and relates to the technology of self-compacting concrete for ballastless tracks of high-speed railways. It is developed for the requirement of stable performance of self-compacting concrete and the deficiency of existing viscosity-modified materials in maintaining stable performance. It provides a new way to solve the problem of stable performance of self-compacting concrete without using special water-reducing agent. It belongs to the supporting technology of high-speed railway CRTSIII type slab ballastless track technology with domestic independent intellectual property rights. Background technique [0002] The ballastless track technology of high-speed railway is an important part of high-speed railway technology. In the initial stage of my country's high-speed railway development, various forms of ballastless track technology were introduced from abroad, and extensive tests and application...

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): C04B24/06E01B1/00
CPCC04B40/0039E01B1/002E01B2204/09C04B2103/408C04B2103/0068C04B24/06
Inventor 凌帆杜建群伊绣臻
Owner 湖北木之君工程材料有限公司