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A High Performance Road Restoration King Material

A road repair and high-performance technology, applied in the field of building materials, can solve the problems of poor bonding ability, low tensile strength, paralysis of traffic roads, etc., and achieve the effects of simple preparation method, avoiding excessive color difference, and high volume stability.

Inactive Publication Date: 2015-10-21
LANXI SANLI BUILDING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because concrete is a quasi-brittle material with low tensile strength and poor toughness, cracks commonly exist in concrete structures that are poorly constructed and maintained, and are often subjected to various dynamic and static loads during use. The shrinkage and expansion caused by changes in humidity and humidity, as well as the physical and chemical erosion of ambient gases and liquids, cause great cracks and fractures in concrete, seriously destroying the traffic capacity of the road, and some even cause serious damage to the road. paralysis
[0003] At present, there are more fluoroaluminate fast-hardening cement system repair materials, and the compressive strength can reach 15Mpa after construction for 2 to 6 hours; there is also repair concrete formulated with phosphate + magnesium peroxide + retarder composite materials. According to reports, the compressive strength can reach 30Mpa after 1 hour of construction, but the durability of this repair material has yet to be verified, and its price is more than twice that of silicate cementitious materials. Its construction generally adopts spraying, grouting and landfill , the strength of sprayed cement is generally only about 2Mpa in 1 hour, which basically cannot meet the requirements of emergency repair and construction; although the epoxy resin material has a strong ability to fill gaps, it has poor bonding ability to faults, and its own aging resistance is not good. The repair effect is poor, and the purpose of quick repair cannot be achieved

Method used

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  • A High Performance Road Restoration King Material
  • A High Performance Road Restoration King Material
  • A High Performance Road Restoration King Material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021]

[0022] According to the weight ratio of the above raw materials, all the raw materials are fully stirred evenly, and the mixing time is 30 minutes. Add 12-18 parts of water in the total amount of the well-stirred mixture at one time, and fully stir until uniform. Put the material into the construction work surface, flatten it, and vibrate it to get a repaired surface with the same color as the original road surface, and it can be solidified in 12 minutes, opened to traffic in 1 hour, and the compressive strength in 1 hour can reach 52.5Mpa , the flexural strength reaches 5.5Mpa; the 24-hour compressive strength reaches 65Mpa, the flexural strength reaches 7.8Mpa; the fluidity is 280mm.

Embodiment 2

[0024]

[0025] Fully stir all raw materials evenly according to the weight ratio of the above raw materials, and the mixing time is 20 minutes. Put the material into the construction work surface, flatten it, and vibrate it to get a repair surface with the same color as the original road surface, and it can solidify in 15 minutes, open to traffic in 1 hour, and the compressive strength in 1 hour can reach 55Mpa. The flexural strength reaches 6.2Mpa; the 24-hour compressive strength reaches 67Mpa, and the flexural strength reaches 8.2Mpa; the fluidity is 300mm.

Embodiment 3

[0027]

[0028] According to the weight ratio of the above raw materials, all the raw materials are fully stirred evenly, and the mixing time is 37 minutes. Add 12-18 parts of water in the total amount of the well-stirred mixture at one time, and fully stir until uniform. Put the material into the construction work surface, flatten it, and vibrate it to get a repaired surface with the same color as the original road surface, and it can be solidified in 12 minutes, opened to traffic in 1 hour, and the compressive strength in 1 hour reaches 57Mpa. The flexural strength reaches 6.8Mpa; the 24-hour compressive strength reaches 69Mpa, and the flexural strength reaches 8.4Mpa; the fluidity is 320mm.

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Abstract

The invention relates to a high performance road rehabilitation king material which comprises the following raw materials in parts by weight: 20-60 parts of ultrahigh strength sulphate aluminum cement, 0.1-1.2 parts of a polycarboxylate-type efficient water reducer, 0.2-3.5 parts of ferric oxide, 0.1-1.5 parts of a set-retarding material / efficient hardening accelerator, 35-68 parts of quartz sands, 1-12 parts of high elastic putty powder and 0.1-3 parts of a building high molecular material. The material provided by the invention overcomes the deficiencies in the prior art and is a novel material designed and developed for emergent repair of concrete pavements such as expressways, urban roads, airport roads. The material is not only simple in raw material composition, but also is convenient to operate and low in cost, and has the advantages of short setting time, good binding performance, high strength, good matching with common concrete, high durability, excellent anti-skidding performance and the like.

Description

technical field [0001] This patent belongs to the technical field of building materials, in particular to a high-performance road repair king material. Background technique [0002] After the concrete pouring construction, if the maintenance is not paid attention to, cracking and faulting will easily occur. Because concrete is a quasi-brittle material with low tensile strength and poor toughness, cracks commonly exist in concrete structures that are poorly constructed and maintained, and are often subjected to various dynamic and static loads during use. The shrinkage and expansion caused by changes in humidity and humidity, as well as the physical and chemical erosion of ambient gases and liquids, cause great cracks and fractures in concrete, seriously destroying the traffic capacity of the road, and some even cause serious damage to the road. paralysis. [0003] At present, there are more fluoroaluminate fast-hardening cement system repair materials, and the compressive ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06
Inventor 柳子栋周育华吴卫明施礼钱晓倩方明晖
Owner LANXI SANLI BUILDING MATERIALS