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Material for rapidly and effectively repairing pits in bituminous pavement and preparation method of material

An asphalt pavement and fast technology, applied in the field of building materials, can solve the problems of poor adhesion of the original pavement, poor performance of cementitious materials, insufficient pavement strength, etc., and achieve the effects of avoiding pavement diseases, uniform pavement and resource saving.

Active Publication Date: 2014-02-12
GUANGDONG ESUN HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing pothole repair materials are all using ordinary asphalt mixture or emulsified asphalt cold patching material. The disadvantage of the former is that the material is limited, and the material can only be taken from the asphalt mixing station, and the performance of the cement is poor; the disadvantage of the latter is that The bonding force with the original road surface is not good, the strength of the formed road surface is not enough, and it is easy to fall off

Method used

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  • Material for rapidly and effectively repairing pits in bituminous pavement and preparation method of material
  • Material for rapidly and effectively repairing pits in bituminous pavement and preparation method of material
  • Material for rapidly and effectively repairing pits in bituminous pavement and preparation method of material

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Weigh the cementitious material components according to the formula, 47% of petroleum asphalt, 5% of modifier, 10% of mineral powder, 3% of plasticizer, 10% of softening oil, 20% of waste rubber powder, and 5% of viscosity reducer;

[0038] Heat petroleum asphalt to 165-195°C to flow state, add softening oil and modifier for grinding for 30 minutes, then raise the temperature to 200-215°C, stir at 80-100r / min for 2 hours, cool down to 185-195°C and add Plasticizer and viscosity reducer, finally add waste rubber powder and mineral powder, stir for 1 hour and mix evenly to obtain cementitious material, its properties are shown in Table 1;

[0039] Add graded aggregate to the prepared cementing material, heat to 185-195°C and stir evenly. The weight percentage of cementing material and graded aggregate is 20% and 80%, and the composition of graded aggregate is:

[0040]

Embodiment 2

[0042] Weigh the cementitious material components according to the formula, 57% of petroleum asphalt, 3% of modifier, 8% of mineral powder, 2% of plasticizer, 10% of softening oil, 17% of waste rubber powder, and 3% of viscosity reducer;

[0043] Heat petroleum asphalt to 165-195°C to flow state, add softening oil and modifier for grinding for 30 minutes, then raise the temperature to 200-215°C, stir at 80-100r / min for 2 hours, cool down to 185-195°C and add Plasticizer and viscosity reducer, finally add waste rubber powder and mineral powder, stir for 1 hour and mix evenly to obtain cementitious material, its properties are shown in Table 1;

[0044] Add graded aggregate to the prepared cement, heat to 185-195°C and stir evenly. The weight percentages of adhesive and graded aggregate are 18% and 82%, and the composition of graded aggregate is:

[0045]

Embodiment 3

[0047] Weigh the cementitious material components according to the formula, 63% of petroleum asphalt, 5% of modifier, 9% of mineral powder, 1% of plasticizer, 8% of softening oil, 10% of waste rubber powder, and 4% of viscosity reducer;

[0048] Heat petroleum asphalt to 165-195°C to flow state, add softening oil and modifier for grinding for 30 minutes, then raise the temperature to 200-215°C, stir at 80-100r / min for 2 hours, cool down to 185-195°C and add Plasticizer and viscosity reducer, finally add waste rubber powder and mineral powder, stir for 1 hour and mix evenly to obtain cementitious material, its properties are shown in Table 1;

[0049] Add graded aggregate to the prepared cement, heat to 185-195°C and stir evenly. The weight percentages of adhesive and graded aggregate are 16% and 84%, and the composition of graded aggregate is:

[0050]

[0051] Table 1: Measured technical indicators of cementitious materials

[0052]

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Abstract

The invention discloses a material for rapidly and effectively repairing pits in a bituminous pavement and a preparation method of the material. The material consists of the following components in percentage by weight: component A: 16-20% of cementing agent, and component B: 80-84% of graded aggregate, wherein the component A, namely cementing agent, comprises the following materials in percentage by weight: 47-63% of petroleum asphalt, 3-5% of a modifying agent, 8-10% of mineral powder, 1-3% of a plasticizer, 8-10% of softening oil, 10-20% of waste rubber powder and 3-5% of a viscosity reducer; and the component B, namely graded aggregate, comprises the following materials in percentage by weight: 37-52% of coarse aggregate and 48-63% of fine aggregate. The material has relatively high liquidity and excellent performance, and is capable of rapidly maintaining the pits in the pavement, so as to avoid pavement diseases due to rolling compaction; and the material is simple and easy to use, and the technology can be popularized in a large range.

Description

【Technical field】 [0001] The invention relates to a material for quickly and effectively repairing potholes on asphalt pavement and a preparation method thereof, belonging to the technical field of building materials. 【Background technique】 [0002] Potholes are typical diseases of asphalt pavement. It not only seriously affects the surface function and performance of the pavement, but also has a great impact on safety. Pothole repair is mainly aimed at the repair and strengthening of pits, local network cracks, cracks and other diseases. At the same time, it can also repair local subsidence, wrapping and slip cracks. Usually, the construction process of asphalt pavement pothole repair is: measure the range and depth of the damaged part, and draw a trench repair contour line (square or rectangle) roughly parallel or perpendicular to the road centerline according to the principle of "round hole square repair". . The groove should be excavated to the stable part, the groove...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26C04B20/00
Inventor 刘威
Owner GUANGDONG ESUN HEAVY IND CO LTD
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