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A kind of microsurfacing pavement material and preparation method thereof

A pavement material and micro-surface technology, which is applied in the field of micro-surface pavement materials and its preparation, can solve the problems of increased noise and insufficient anti-skid performance, and achieves improved structural depth, rich angularity, and stable anti-skid and wear-resistant performance. Effect

Active Publication Date: 2022-03-29
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the use of micro-surface pavement materials, it was found that the noise inside and outside the vehicle was significantly higher than that of ordinary on-site hot-mixed and hot-paved asphalt pavements, and the anti-skid performance was insufficient

Method used

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  • A kind of microsurfacing pavement material and preparation method thereof
  • A kind of microsurfacing pavement material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The micro-surface pavement material in this implementation includes aggregate, SBR modified emulsified asphalt and water, and the mass ratio of the aggregate, the SBR modified emulsified asphalt and the water is 1:0.07:0.06; Aggregate, calculated by mass percentage, consists of: 22% steel slag aggregate with a particle size of 4.75-9.5mm, 10% and 13% of waste glass and steel slag aggregate with a particle size of 2.36-4.75mm, and a particle size of 0-2.36mm steel slag aggregate and rubber particles are 46% and 3% respectively, mineral powder is 4.5%, Portland cement is 1.5%.

[0025] The preparation method of the micro-surfacing pavement material in this embodiment includes: according to the distribution ratio of each component, mixing steel slag coarse aggregate, steel slag fine aggregate, glass aggregate, rubber particle aggregate and filler for 30s until uniform, and then adding Mix with water for 34s until it becomes uniformly wet, then add SBR modified emulsified a...

Embodiment 2

[0027] The difference between this example and Example 1 is only the mass percentage of the aggregate, specifically, the aggregate is calculated according to the mass percentage, the particle size is 4.75-9.5mm, the steel slag aggregate is 22%, and the particle size is 2.36-4.75mm Waste glass 8% and 15% for steel slag aggregate, 47% and 2% for steel slag aggregate and rubber rubber particles with a particle size of 0-2.36mm, 4.5% for mineral powder, and 1.5% for Portland cement.

Embodiment 3

[0029] The difference between this example and Example 1 is only the mass percentage of the aggregate, specifically, the aggregate is calculated according to the mass percentage, the particle size is 4.75-9.5mm, the steel slag aggregate is 22%, and the particle size is 2.36-4.75mm Waste glass And steel slag aggregates are 6% and 17% respectively, steel slag aggregates and waste rubber particles with a particle size of 0-2.36mm are 48% and 1% respectively, mineral powder is 4.5%, and Portland cement is 1.5%.

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Abstract

The invention relates to a micro-surfacing pavement material and a preparation method thereof. The pavement material at the micro-surface includes aggregate, emulsified asphalt and water, and the mass ratio of the aggregate, emulsified asphalt and water is 1: (0.06-0.08): (0.05-0.06); Percentage calculation, including the following components: steel slag coarse aggregate 30-42%, steel slag fine aggregate 42-46%, glass aggregate 5%-12%, rubber particle aggregate 1%-3%, filler 5-7% . The present invention also includes the preparation method of the above-mentioned micro-surface pavement material, comprising: mixing steel slag coarse aggregate, steel slag fine aggregate, glass aggregate, rubber particle aggregate and filler according to the distribution ratio of each component, and then adding hydrating Wet, and then add emulsified asphalt and mix to obtain the micro-surfaced pavement material. The micro-surfacing pavement material has excellent and stable anti-slip and wear-resistant properties, and the BPN value is as high as 81.

Description

technical field [0001] The invention relates to the technical field of asphalt pavement preventive maintenance, in particular to a micro-surfacing pavement material and a preparation method thereof. Background technique [0002] In the past 20 years, my country's expressways have developed very rapidly, and the total mileage has continued to rise. However, with the arrival of the design period of the expressway, as well as the repeated load of the vehicle and the influence of environmental factors, the damage to the road surface is also increasing. Therefore, it is extremely important to improve the maintenance measures of the expressway. [0003] At present, the most commonly used pavement maintenance method in my country is micro-surfacing technology, which uses emulsified asphalt, coarse and fine aggregates, fillers, water and other admixtures, and can form a thin-layer pavement with certain strength and durability after preparation at room temperature . However, during ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/0075C04B24/36C04B18/142C04B14/22C04B18/22C04B14/28C04B20/0076
Inventor 陈美祝程明杨天元吴少鹏张建伟朱云升刘全涛谢君张登峰李红
Owner WUHAN UNIV OF TECH
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