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Wear-resistant concrete pavement and preparation method thereof

A concrete pavement and concrete technology, which is applied to cohesive pavement paved on site, roads, roads, etc., can solve the problems of difficult to meet special wear-resistant requirements, unsatisfactory wear-resistant effects, and difficult construction, and achieve coarse crystallization, Good effect of dispersing frictional stress and good angularity

Inactive Publication Date: 2021-03-30
周强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, most of the existing wear-resistant concrete adopts the method of alternate pouring of soft and hard layers. The construction is difficult, the company is complicated, and the wear-resistant effect is not ideal. It is still difficult to meet some industrial projects with special wear-resistant requirements.

Method used

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  • Wear-resistant concrete pavement and preparation method thereof
  • Wear-resistant concrete pavement and preparation method thereof
  • Wear-resistant concrete pavement and preparation method thereof

Examples

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Effect test

preparation example Construction

[0051] The preparation method of self-made wear-resistant concrete of the present invention, concrete preparation steps are:

[0052] (1) Mix chitosan, acetic acid and water according to the mass ratio of 1:9:90 to obtain a chitosan solution, and put the obtained chitosan solution into the bottom of stainless steel, with polytetrafluoroethylene insulation on the side wall In the lined container, place the container on a stainless steel low-temperature platform with a temperature of -40°C. After the chitosan solution is completely frozen, it is then freeze-dried to remove water and acetic acid components to obtain a self-made chitosan template; The method controls the growth of ice crystals along a fixed direction, so that chitosan sinks between the ice flakes to form a micron-sized thin layer, and then removes the ice crystals by freeze-drying to obtain a chitosan porous material with a regular layered structure. , since the freeze-drying process directly draws water away in t...

example 1

[0061] A wear-resistant concrete road surface, comprising a wear-resistant concrete roadbed (1) and an anti-wear groove (2) located on the surface of the wear-resistant concrete roadbed, the wear-resistant groove (2) is an inverted quadrangular truss structure, and the wear-resistant The grinding groove (2) is formed by pressing rollers with four-sided trusses on the surface between the curing of the wear-resistant concrete subgrade (1), and the length of the bottom side of the wear-resistant groove (2) is 0.5 cm, the length of the top side is 1.0cm, and the depth is 0.5cm.

[0062] The wear-resistant concrete subgrade (1) is formed by pouring and curing self-made wear-resistant concrete.

[0063] The preparation method of self-made wear-resistant concrete, the specific preparation steps are:

[0064] Mix chitosan with acetic acid and water according to the mass ratio of 1:9:90 to obtain a chitosan solution, and put the obtained chitosan solution into a stainless steel bottom...

example 2

[0066] A wear-resistant concrete road surface, comprising a wear-resistant concrete roadbed (1) and an anti-wear groove (2) located on the surface of the wear-resistant concrete roadbed, the wear-resistant groove (2) is an inverted quadrangular truss structure, and the wear-resistant The grinding groove (2) is formed by pressing rollers with four-sided trusses on the surface between the curing of the wear-resistant concrete subgrade (1), and the length of the bottom side of the wear-resistant groove (2) is 0.6 cm, the length of the top side is 1.1cm, and the depth is 0.5cm.

[0067] The wear-resistant concrete subgrade (1) is formed by pouring and curing self-made wear-resistant concrete.

[0068] The preparation method of self-made wear-resistant concrete, the specific preparation steps are:

[0069]Mix chitosan with acetic acid and water according to the mass ratio of 1:9:90 to obtain a chitosan solution, and put the obtained chitosan solution into a stainless steel bottom ...

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Abstract

The invention relates to a wear-resistant concrete pavement and a preparation method thereof, and belongs to the technical field of road construction. According to the self-made wear-resistant concrete disclosed by the invention, the self-made antiwear wear-resistant composite material is added as a filler, the filler has a wavy bent lamellar structure of a chitosan template, columnar gaps, ribbedbulges and other microstructures, and when concrete is subjected to external friction stress, the wavy bent lamellar structure of the filler can slide between layers of the self-made antiwear wear-resistant composite material in the stress transmission direction and move in the friction movement direction, so that the consumption of internal energy of a concrete material is reduced, the frictionloss is reduced, and the wear resistance of the concrete is improved; secondly, the wavy bent lamellar structure and microstructures of the columnar gaps and ridge protrusions form a grid structure, the grid structure is in a grid shape as a whole, the microstructures can hinder and buffer external friction stress, abrasion and corrosion are reduced, and the antiwear and wear-resisting effects arefurther achieved.

Description

technical field [0001] The invention relates to a wear-resistant concrete pavement and a preparation method thereof, belonging to the technical field of road construction. Background technique [0002] At present, with the progress of concrete research, high-performance cement-based composite materials (such as MDF cement-based materials, DSP cement-based materials and cement-based polymer materials, etc.) are highly valued at home and abroad, and people's awareness of sustainable development continues to increase. Great progress has been made in the preparation of high-performance cement-based composites from ultra-fine industrial ash at home and abroad. Some foreign companies have used sintered bauxite, alumina ceramics and other wear-resistant aggregates to prepare high-performance, high-wear-resistant concrete for practical engineering. The present invention intends to develop ultra-high-strength, high-wear-resistant concrete for use in industrial engineering (the wear ...

Claims

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Application Information

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IPC IPC(8): C04B28/04E01C7/14
CPCC04B28/04E01C7/14E01C7/142C04B2111/0075C04B18/08C04B14/303C04B14/4687C04B14/022C04B22/08C04B2103/302
Inventor 周强
Owner 周强
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