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Organic/inorganic composite material for rapidly repairing pit slots of bituminous pavement and preparation method thereof

An inorganic composite material and asphalt pavement technology, applied in the field of asphalt pavement pothole repair materials and their preparation, can solve the problems of complex process, slow curing speed, etc. Effect

Active Publication Date: 2014-12-03
北京中科安途交通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention not only solves the problems of technical complexity and slow curing speed in repairing asphalt pavement pits and grooves in the prior art, but also the repaired materials have excellent performances such as compression resistance, shear resistance, water erosion resistance, and heat and cold resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] A preparation method of an organic / inorganic composite material for quickly repairing potholes on asphalt pavement is implemented. The method is composed of component A, component B and component C, and the content and composition are measured in parts by mass. The preparation process is as follows.

[0078] Component A: Take 82 parts of polymethylene polyphenyl polyisocyanate and place it in a stirring mixer, then add 10 parts of polyurethane prepolymer and 8 parts of propylene carbonate, and stir and mix evenly at room temperature to obtain Component A. Filled with nitrogen and sealed for storage.

[0079] Component B: First add 90 ＃ Add 5 parts of petroleum asphalt to 10 parts of dipropylene glycol dibenzoate, heat and dissolve for later use.

[0080] Get 66 parts of 4450 type polyether polyols and place them in a stirring mixing container, then add 10 parts of 500 type polyether polyols successively, 3-chloro-3 ′ -Ethyl-4,4 ′ - 2.5 parts of diaminodiphenylmethane...

Embodiment 2

[0087] A preparation method of an organic / inorganic composite material for quickly repairing potholes on asphalt pavement is implemented. The method is composed of component A, component B and component C, and the content and composition are measured in parts by mass. The preparation process is as follows.

[0088] Component A: Take 90 parts of polymethylene polyphenyl polyisocyanate and place it in a stirring mixer, then add 5 parts of polyurethane prepolymer and 5 parts of propylene carbonate, and stir and mix evenly at room temperature to obtain Component A. Filled with nitrogen and sealed for storage.

[0089] Component B: First add 90 ＃ Add 3 parts of petroleum asphalt to 5 parts of dipropylene glycol dibenzoate, heat and dissolve for later use.

[0090] Take 80 parts of 4450 type polyether polyols and place them in a stirring mixing container, then add 7 parts of 500 type polyether polyols successively, 3-chloro-3 ′ -Ethyl-4,4 ′ - 1 part of diaminodiphenylmethane, 0.5...

Embodiment 3

[0096] A preparation method of an organic / inorganic composite material for quickly repairing potholes on asphalt pavement is implemented. The method is composed of component A, component B and component C, and the content and composition are measured in parts by mass. The preparation process is as follows.

[0097] Component A: Take 86 parts of polymethylene polyphenyl polyisocyanate and place it in a stirring mixer with a belt, then add 7 parts of polyurethane prepolymer and 7 parts of propylene carbonate, and stir and mix evenly at room temperature to obtain Component A. Filled with nitrogen and sealed for storage.

[0098] Component B: First add 90 ＃ Add 3.5 parts of petroleum asphalt to 8 parts of dipropylene glycol dibenzoate, heat and dissolve for later use.

[0099] Take 74 parts of 4450 type polyether polyols and place them in a stirring mixing container, then add 8 parts of 500 type polyether polyols successively, 3-chloro-3 ′ -Ethyl-4,4 ′ - 2 parts of diaminodiphe...

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Abstract

The invention discloses an organic / inorganic composite material for rapidly repairing pit slots of a bituminous pavement, which is prepared from the following main raw materials of polymethylene polyphenyl polyisocyanates, a polyurethane prepolymer, polyether polyol, petroleum asphalt, a catalyst, sodium silicate powder, carborundum and the like. The composition material comprises components A, B and C, wherein the components A and the component B are blended with the component C after being mixed, and can be quickly solidified after being cast into the pit slots at room temperature, so that the composite material has strong caking property and similar rigidity with an original bituminous pavement, and the travelling stationarity and comfortableness are achieved after restoration. The composite material is simple and convenient to construct, rapid, efficient and environmentally friendly, the setting time is smaller than or equal to 30 minutes, and the bituminous pavement can be opened after 90 minutes, so that the rapid repairing purpose is achieved, and the effect on traffic jam caused by pavement rehabilitation is greatly relieved. The composite material has excellent water tolerance, weather fastness, abrasive resistance and compressive shear resistance, is a novel green material for rapidly repairing pit slots of a pavement, and has positive promotion action and a good application effect on development of a preventive maintenance technology of highways.

Description

technical field [0001] The invention relates to an asphalt pavement pothole repair material and a preparation method thereof, belonging to the technical field of road materials and applications, in particular to an organic / inorganic composite material for quickly repairing asphalt pavement potholes and a preparation method thereof. technical background [0002] Asphalt mixture pavement has the characteristics of fast construction progress, simple maintenance and repair, comfortable driving, smooth surface, etc., and is widely used in my country. However, after a certain period of time, the asphalt pavement will be damaged to varying degrees due to long-term high-load driving, harsh weather conditions, temperature changes, rain erosion, etc., resulting in a decrease in the bonding force between the asphalt and the base material. Under the repeated action of the dynamic load of the automobile wheel, the asphalt falls off from the surface of the base material, and the pavement ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26C08G18/76C08G18/66C08G18/48C08K3/34
Inventor 王畅铭姚亮于泳潭
Owner 北京中科安途交通科技有限公司
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