Steel slag aggregate type semi-flexible paving material and preparation method thereof

A pavement material, semi-flexible technology, applied in the field of pavement construction materials, can solve the problems of high preparation cost and difficulty in wide-scale promotion, and achieve the effect of less free asphalt, good compatibility and complete voids

Pending Publication Date: 2020-06-26
上海弘枫建材有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the preparation cost of semi-flexible materials used in the prior art is high, and it is difficult

Method used

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  • Steel slag aggregate type semi-flexible paving material and preparation method thereof
  • Steel slag aggregate type semi-flexible paving material and preparation method thereof

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Example Embodiment

[0027] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples cited are only used to explain the present invention, and are not used to limit the scope of the present invention.

[0028] In specific embodiment 1, a steel slag aggregate type semi-flexible paving material includes two parts: a large-void steel slag aggregate type asphalt matrix material and a semi-flexible paving grouting material;

[0029] Among them, the large-void steel slag aggregate type asphalt matrix material includes the following materials according to the weight ratio: 4.0%-4.5% SBS modified asphalt, 75%-85%% 5-15mm coarse steel slag aggregate, 8%-12 % Limestone fine material, 3%-5% limestone powder, 0.3%-0.6% high viscosity modifier;

[0030] The semi-flexible paving grouting material includes 100 parts by weight of dry powder grouting material and 27-35 parts of water. The dry powder grouting material includes 52.5 fast hardenin...

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Abstract

The invention relates to a steel slag aggregate type semi-flexible paving material and a preparation method thereof. The steel slag aggregate type semi-flexible paving material comprises a large-gap steel slag aggregate type asphalt matrix material and a semi-flexible paving grouting material. The steel slag has the characteristics of high strength and large voids, the steel slag coarse aggregatehas the characteristics of higher oil absorbency and better wear value than the natural rock coarse aggregate, the cost is lower, and parent asphalt concrete prepared from the steel slag coarse aggregate has less free asphalt and more complete voids than the parent asphalt concrete prepared from natural rock. Meanwhile, active ingredients in the steel slag metallurgy process are higher than thoseof natural rock, poor in compatibility with an asphalt matrix and good in compatibility with a cement matrix, so that the cement-based slurry is poured into the large-gap parent asphalt, the disadvantage performance of the whole material is improved, and the advantage performance of the whole material is highlighted.

Description

Technical field [0001] The invention relates to the field of pavement construction materials, in particular to a steel slag aggregate type semi-flexible paving material and a preparation method. Background technique [0002] Rutting is one of the most common diseases on municipal roads, especially at municipal intersections. Rutting greatly affects driving safety and can cause road damage such as cracks and potholes. [0003] At some intersections of municipal roads, particularly serious rut ​​hugs can even cause vehicles to scrape the bottom and pedestrians who cross the sidewalk to kick and fall. Especially when the traffic volume is large, the road static load is large, and the impact force during braking and starting is large, it is easy to cause rutting at intersections and bus stops. Some road sections have low foundation stability and high road surface temperature, which is easy to cause rutting on the road. In some repaired road sections, it is also common that rutting o...

Claims

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Application Information

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IPC IPC(8): C04B26/26C04B38/08C04B28/06C04B111/70
CPCC04B26/26C04B28/065C04B2111/0075C04B2111/00612C04B2111/70C04B18/142C04B14/28C04B2103/0068C04B38/08C04B24/2676C04B2103/302C04B14/00C04B14/068C04B24/36
Inventor 徐斌袁斌盛杰锋
Owner 上海弘枫建材有限公司
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