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Low-temperature cold patch asphalt liquid and preparation method thereof

A cold-patch asphalt and low-temperature technology, which is applied to building insulation materials, building components, buildings, etc., can solve problems such as poor workability, slow strength formation, and insufficient bonding strength of old pavement

Inactive Publication Date: 2020-10-27
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a low-temperature cold-patching asphalt liquid and its preparation method, which solves the problems of poor construction workability of common cold-patching materials, slow strength formation and insufficient bonding strength with the old road surface in existing pothole repairs. defect

Method used

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  • Low-temperature cold patch asphalt liquid and preparation method thereof
  • Low-temperature cold patch asphalt liquid and preparation method thereof
  • Low-temperature cold patch asphalt liquid and preparation method thereof

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preparation example Construction

[0032] The preparation method of a kind of low-temperature type cold asphalt liquid provided by the present invention comprises the following steps:

[0033] Step 1, in parts by mass, weigh 100 parts of petroleum pitch, 24-26 parts of light oil, 3-6 parts of tackifier, 3-6 parts of water-based epoxy resin emulsion and 2-3 parts of SBR latex;

[0034] Step 2, heating and dehydrating the weighed petroleum pitch until the heated petroleum pitch is in a molten state, at this time, the heating temperature is 120-130°C;

[0035] Step 3, add light oil to the molten petroleum asphalt in step 2, and stir evenly to obtain diluted asphalt. The duration of the whole process is about 10-15 minutes, and the heating temperature of the asphalt is controlled at 110-120°C;

[0036] Step 4, adding a tackifier to the diluted asphalt in step 3, performing shearing and mixing to obtain an asphalt liquid;

[0037] Step 5: Add water-based epoxy resin emulsion and SBR latex to the asphalt solution ob...

Embodiment 1

[0044] Prepare test instruments and raw materials for the preparation of low-temperature cold replenishment fluid to ensure that the amount of raw materials is sufficient;

[0045] Put a tank containing 100 parts of road petroleum asphalt in an oven to heat and dehydrate until it is in a molten state at 120-130°C;

[0046] Add 24 parts of light oil and stir with a glass rod at the same time to ensure that the diluted bitumen is in a homogeneous state. The duration of the whole process is about 10-15 minutes, and the asphalt heating temperature is controlled at 110-120°C.

[0047] Add 3 parts of tackifier, and cut through high-speed shearing machine for 10-15 minutes to ensure that the additive is fully dissolved in the diluted asphalt. At this time, the temperature of the asphalt liquid should be lowered to below 100°C, and the constant temperature should be kept at 80°C-90°C for use .

[0048] Add 3 parts of water-based epoxy resin emulsion and 2 parts of SBR latex to the a...

Embodiment 2

[0052] Prepare test instruments and raw materials for the preparation of low-temperature cold replenishment fluid to ensure that the amount of raw materials is sufficient;

[0053] Put a tank containing 100 parts of road petroleum asphalt in an oven to heat and dehydrate until it is in a molten state at 120-130°C;

[0054] Add 26 parts of light oil and stir with a glass rod at the same time to ensure that the diluted bitumen is in a homogeneous state. The duration of the whole process is about 10-15 minutes, and the asphalt heating temperature is controlled at 110-120°C.

[0055]Add 6 parts of tackifier, and cut it through high-speed shearing machine for 10-15 minutes to ensure that the additive is fully dissolved in the diluted asphalt. At this time, the temperature of the asphalt liquid should be lowered to below 100°C, and the constant temperature should be kept at 80°C-90°C for use .

[0056] Add 6 parts of water-based epoxy resin emulsion and 3 parts of SBR latex to the...

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Abstract

The invention provides low-temperature cold patch asphalt liquid and a preparation method thereof. The low-temperature cold patch asphalt liquid is prepared from, by mass, 100 parts of petroleum asphalt, 24-26 parts of light oil, 3-6 parts of a tackifier, 3-6 parts of a waterborne epoxy resin emulsion and 2-3 parts of SBR latex; the low-temperature cold patch material provided by the invention isrelatively good in initial strength, forming strength, water stability, high-temperature stability and low-temperature crack resistance; the low-temperature cold patch material is prepared by mixing the low-temperature cold patch liquid with mineral aggregate with certain gradation under the optimal asphalt-aggregate ratio, is stable in performance, is good in construction workability after beingstored for one year, can be used and taken at any time when a pit slot is repaired, can effectively save time, and guarantees the maintenance opportunity.

Description

technical field [0001] The invention relates to the field of asphalt pavement pothole repair materials at low temperature, in particular to a low-temperature cold patch asphalt liquid and a preparation method thereof. Background technique [0002] During the long-term use of asphalt pavement, under the comprehensive action of traffic load, natural environment and other factors, many diseases such as cracks, looseness, spalling and potholes will inevitably appear, which will affect the quality of road use. Especially in low-temperature seasons or low-temperature areas, ordinary cold patching materials cannot be used to repair potholes in a timely and effective manner. Common cold patching materials have poor workability, slow strength formation, and insufficient bonding strength with the old pavement. These problems seriously restrict The popularization and application of ordinary cold patching materials in low-temperature seasons or low-temperature areas is also the main rea...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L63/00C08L91/00C08L9/08C08L97/02C08L67/00C08L45/00C08K7/14
CPCC08L95/00C08L2201/08C08L2205/035C08L2205/16C08L63/00C08L91/00C08L9/08C08L45/00C08L97/02C08L67/00C08K7/14
Inventor 张争奇张伟左闪成高立卢川田中男杨建华
Owner CHANGAN UNIV
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