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Micro-surfacing pavement material and preparation method thereof

A pavement material and micro-surface technology, applied in the field of micro-surface pavement materials and their preparation, can solve problems such as insufficient anti-skid performance and increased noise, achieve rich angularity, improve structural depth, and stabilize anti-skid and wear-resistant performance Effect

Active Publication Date: 2021-05-07
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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  • Micro-surfacing pavement material and preparation method thereof

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Embodiment 1

[0024]The micro-surface material of the present embodiment includes a collector, SBR modified emulsified asphalt and water, the collector, the SBR modified emulsified asphalt and the water mass ratio of 1: 0.07: 0.06; The assembly is calculated according to the percentage of mass, and the group is: a particle size of 4.75-9.5mm steel slag collective is 22%, the particle size is 2.36-4.75mm waste glass and steel slag aguate 10% and 13%, and the particle size is 0-2.36 mm Steel slag aggregates and rubber particles were 46% and 3%, respectively, and the mine powder was 4.5%, and the silicate cement was 1.5%.

[0025]The method for preparing the pavement material in this embodiment, including: according to each group distribution ratio, the steel slag coarse material, steel slag fine collector, glass collector, rubber particles, and filler mixed 30s to uniform, then add Water mixed 34S to uniform moist, then add SBR modified emulsified asphalt mixing 30s to uniformly obtained the microfubu...

Embodiment 2

[0027]The difference between the present embodiment and the first embodiment is only the mass percentage of the aggregates, specifically, the assembly is calculated according to the mass percentage, the particle size is 2.2%, the particle size is 2.36-4.75mm waste glass. And the steel slag agu is 8% and 15%, respectively, the particle size of 0-2.36 mm, and the rubber rubber particles are 47% and 2%, respectively, the mine powder is 4.5%, and the silicate cement is 1.5%.

Embodiment 3

[0029]The difference between the present embodiment and the first embodiment is only the mass percentage of the aggregates, specifically, the assembly is calculated according to the mass percentage, the particle size is 2.2%, the particle size is 2.36-4.75mm waste glass. And the steel slag aggregates were 6% and 17%, respectively, and the particles of the steel slag aggregate and the waste rubber particles were 48% and 1%, respectively, the mine powder was 4.5%, and the silicate cement was 1.5%.

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Abstract

The invention relates to a micro-surfacing pavement material and a preparation method thereof. The micro-surfacing pavement material is prepared from aggregate, emulsified asphalt and water, and the mass ratio of the aggregate to the emulsified asphalt to the water is 1:(0.06-0.08):(0.05-0.06); the aggregate is prepared from the following components in percentage by mass: 30-42 percent of steel slag coarse aggregate, 42-46 percent of steel slag fine aggregate, 5-12 percent of glass aggregate, 1-3 percent of rubber particle aggregate and 5-7 percent of filler. The invention also comprises a preparation method of the micro-surfacing pavement material, and the preparation method comprises the following steps: mixing the steel slag coarse aggregate, the steel slag fine aggregate, the glass aggregate, the rubber particle aggregate and the filler according to the proportion of each component, adding water for wetting, adding the emulsified asphalt, and mixing to obtain the micro-surfacing pavement material. The micro-surfacing pavement material has excellent and stable skid resistance and wear resistance, and the BPN value is as high as 81.

Description

Technical field[0001]The present invention relates to the field of asphalt pavement preventive maintenance, and in particular, there is a micro-surface pavement material and a preparation method thereof.Background technique[0002]In the past 20 years, my country's highway has developed very rapidly, and the total mileage continues to rise. However, with the arrival of highway design years, as well as the effects of repeated load and environmental factors, the road surface is increasingly larger, so it is extremely important to enhance highway maintenance measures.[0003]At present, my country's most commonly used road conservation is a micro-meter technology, which is made of emulsified asphalt, thick collectors, fillers, water, and other plugs. After preparing at normal temperature, it is possible to form a thin layer pavement with a certain strength and durability. . However, in the process of using the road surface materials in the micro-meter, the inside and outfit of the car is s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/0075
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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