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Pavement crack repairing material and preparation method

A technology for repairing cracks in materials and pavements. It is applied in the direction of asphalt material adhesives, roads, roads, etc. It can solve the problems that cannot meet the requirements of road maintenance, and achieve the goal of improving damage resistance, increasing specific surface area, and good crack resistance. Effect

Inactive Publication Date: 2014-02-19
GUANGDONG ESUN HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is impossible to meet the requirements of road maintenance

Method used

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  • Pavement crack repairing material and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1, each component is weighed according to the formula quantity, petroleum asphalt 49%; Modifier 10%; Special scrap powder 6%; Plasticizer 3%; Softening oil 10%; Waste rubber powder 15%; Tackifier 7%;

[0028] Heat petroleum asphalt to 170°C, add plasticizer and special scrap powder, heat up to 205°C, stir at 90r / min for 2h to dissolve, cool down to 190°C, add softening oil and modifier to grind for 30min, then add viscosity increaser After mixing the agent and waste rubber powder evenly. The measured material properties are listed in Table 1.

Embodiment 2

[0029] Embodiment two, each component is weighed by formula quantity, petroleum asphalt 44%; Modifier 8%; Special scrap powder 9%; Plasticizer 5%; Softening oil 12%; Waste rubber powder 15%; 7%;

[0030] Heat petroleum asphalt to 170°C, add plasticizer and special scrap powder, heat up to 210°C, stir at 90r / min for 2h to dissolve, cool down to 190°C, add softening oil and modifier to grind for 30min, then add waste rubber The powder and nano-oxide are mixed evenly. The measured material properties are listed in Table 1.

Embodiment 3

[0031] Embodiment 3, each component is weighed according to the formula quantity, petroleum asphalt 35%; Modifier 12%; Special scrap powder 10%; Plasticizer 5%; Softening oil 15%; Waste rubber powder 20%; Tackifier 3%;

[0032] Heat petroleum asphalt to 165°C, add plasticizer and special scrap powder, heat up to 200°C, stir at 80r / min for 2h to dissolve, cool down to 185°C, add softening oil and modifier to grind for 30min, then add waste rubber Mix the powder and tackifier evenly. The measured material properties are listed in Table 1.

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Abstract

Provided is a pavement crack repairing material. The pavement crack repairing material comprises the following ingredients, by weight, 35-65% of asphalt, 6-12% of modifiers, 6-10% of special leftover material powder, 2-5% of plasticizers, 8-15% of softening oil, 10-25% of waste rubber power, and 3-10% of tackifiers or nano-oxides. The special leftover material powder is obtained after leftover materials of beef tendon sole rubber and chloroprene rubber at a weight ratio of 3:2.5 are ground by a grinding mill. The repairing material has good low-temperature crack resistance, high-temperature stability, interface binding property, ageing resistance and fatigue resistance. The repairing material is suitable for repairing of cracks and seams of asphalt or cement concrete pavements under extremely cold weather conditions.

Description

【Technical field】 [0001] The invention relates to a pavement crack repairing material and a preparation method thereof. 【Background technique】 [0002] Pavement cracks, as one of the main road diseases in my country, mainly appear in the early damage of roads. If they are not treated in time, they will seriously affect the performance of roads, advance the road maintenance period and greatly increase maintenance costs, and directly shorten the service life of roads. In Northeast China, due to the low temperature in winter, it is generally -20~-40°C, but the high temperature in summer can reach about 40°C. Traditional repair materials mostly use ordinary modified asphalt, ordinary joint glue, seam tape and the like. These materials have become glassy at a low temperature of -30°C. During operation, the vehicle will quickly disappear. Cracking occurs, often after a winter, the repair material has partially or mostly cracked, and in the high temperature environment of summer, ...

Claims

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Application Information

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IPC IPC(8): C09J195/00C09J121/00C09J111/00C09J11/06C09J11/08C09J11/04E01C7/22E01C7/26
Inventor 黄成许海峰刘威黄益
Owner GUANGDONG ESUN HEAVY IND CO LTD
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