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Pavement patching material and preparation method thereof

A pavement repair and manganese slag technology, applied in the field of pavement repair materials and preparation, can solve the problems of high cost, slow early strength of repair materials, long open traffic time, etc., to reduce production costs, facilitate implementation, and open traffic time. Effect

Active Publication Date: 2022-05-24
湖南鑫长胜材料科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at some deficiencies in the prior art, the present invention provides a pavement patching material and a preparation method to solve the problems of cement pavement patching materials such as slow early strength, long open traffic time and high cost

Method used

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  • Pavement patching material and preparation method thereof

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Embodiment 1

[0029] In the present embodiment, the technical solution of the pavement repair material is:

[0030] A pavement repair material, wherein, by weight, comprising 58 parts of manganese slag, 42 parts of red mud, 27 parts of alkaline excitant, 6 parts of 600 mesh silica ash, 30 parts of calcium oxide, 14 parts of water; the alkaline excitant comprises potassium hydroxide and potassium water glass, the weight ratio is 1: 3, the modulus of potassium water glass is 2.7.

[0031] The preparation method of the above pavement repair material, wherein it is characterized, comprises the following steps:

[0032] S1, the manganese slag and red mud after mixing for calcination, calcination temperature of 650 °C, calcination time of 2.6h, after cooling to get mixture A, standby;

[0033] S2, the mixture A for ball milling, ball milling time is 2.4h, after ball grinding, sieving, sieving size of 0.15mm, sieve rate of more than 95%, to obtain mixture B;

[0034] S3, the mixture B and alkaline excit...

Embodiment 2

[0036] In the present embodiment, the technical solution of the pavement repair material is:

[0037] A pavement repair material, wherein, by weight, comprising 62 parts of manganese slag, 48 parts of red mud, 26 parts of alkaline excitant, 5 parts of 600 mesh silica ash, 29 parts of calcium oxide, 13 parts of water; the alkaline excitator comprises potassium hydroxide and potassium water glass, the weight ratio is 1: 2, the potassium water glass modulus is 2.7.

[0038] The preparation method of the above pavement repair material, wherein it is characterized, comprises the following steps:

[0039] S1, the manganese slag and red mud after mixing for calcination, calcination temperature of 650 °C, calcination time of 2.6h, after cooling to get mixture A, standby;

[0040] S2, the mixture A for ball milling, ball milling time is 2.4h, after ball grinding, sieving, sieving size of 0.075mm, sieving rate of more than 85%, to obtain mixture B;

[0041] S3, the mixture B and alkaline ex...

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Abstract

The invention relates to a pavement patching material and a preparation method. The pavement patching material is characterized in that, in parts by weight, it comprises 40-68 parts of manganese slag, 32-56 parts of red mud, 16-34 parts of alkaline activator, 2-7 parts of silica fume, and 20-36 parts of calcium oxide. 10-16 parts of water. The pavement patching material of the invention can effectively utilize industrial waste residues to realize rapid hardening and early strength, has short opening time for traffic, has low pollution and energy consumption in the production process, and has low production cost.

Description

Technical field [0001] The present invention relates to the technical field of road materials, more particularly, the present invention relates to a pavement repair material and preparation method. Background [0002] The total length of China's current roads exceeds 2 million km, of which cement concrete pavement accounts for about 60%, cement concrete pavement is still one of the main types of highway pavement in China. Due to the design, construction, post-maintenance and overload traffic, the cement concrete pavement built in the early days has undergone structural and non-structural damage to varying degrees, and the main types of damage include cracks, plate corner fractures, misplaced, surface cracks and layered spalling. [0003] At this stage, the repair materials used for cement concrete pavement are mainly divided into inorganic and organic materials. Inorganic repair materials are mainly ordinary cement concrete and fast hard cement concrete, after this kind of concre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/10C04B111/72
CPCC04B28/10C04B2111/72C04B2201/50C04B18/144C04B18/0409C04B22/062C04B12/04C04B18/146
Inventor 唐海威王潇潇沈增晖李九苏何培勇李晓东张毅龙翔徐伟龙黄志轩李俊许志东李爱
Owner 湖南鑫长胜材料科技有限公司
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