Asphalt concrete prefabricated part based on solid waste material and preparation method of asphalt concrete prefabricated part

A technology of asphalt concrete and prefabricated components, applied in solid waste management, sustainable waste treatment, climate sustainability, etc., can solve the problem of low utilization rate of milling materials, reduce the area occupied by cultivated land, improve the utilization rate, increase the The effect of water and erosion resistance

Active Publication Date: 2022-02-01
山东高速工程咨询集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of low utilization rate of road milling materials and basically coarse aggregate in the above-mentioned prior art, the present invention provides a solid waste material-based asphalt concrete prefabricated component and its preparation method. The present invention realizes RAP 100% utilization of materials, making full use of recycled fine materials with relatively high asphalt content, eliminating the addition of new asphalt in the preparation process, greatly reducing costs; adding waste plastic powder and adopting microwave heating, on the one hand, can fully Using the curing effect of thermoplastic materials to improve the strength of prefabricated components, on the other hand, a large number of waste plastics can be used to reduce white pollution

Method used

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  • Asphalt concrete prefabricated part based on solid waste material and preparation method of asphalt concrete prefabricated part
  • Asphalt concrete prefabricated part based on solid waste material and preparation method of asphalt concrete prefabricated part
  • Asphalt concrete prefabricated part based on solid waste material and preparation method of asphalt concrete prefabricated part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] An asphalt concrete prefabricated element based on solid waste materials, consisting of the following components:

[0038] Waste road surface milling material (composition: 40 parts of waste road surface milling material of 0~3mm, 60 parts of waste road surface milling material of 3~5mm), emulsified asphalt (the amount accounts for 4 parts of the milling material), waste plastic Powder (the amount accounts for 5 parts of the milling material).

[0039] The preparation process includes the following steps:

[0040] (1) Mix the above waste road surface milling materials in proportion, keep them warm in an oven at 40-50°C for 1 hour, pour them into the mixing pot after the heat preservation is over, add emulsified asphalt, mix for one cycle, then add waste plastic powder, continue Mix for one cycle to obtain asphalt mixture;

[0041] (2) Take out the asphalt mixture and put it into a microwave heating device to raise the temperature to 160°C and keep it warm for 30s;

...

Embodiment 2

[0046] An asphalt concrete prefabricated element based on solid waste materials, consisting of the following components:

[0047] Waste road surface milling material (composition: 45 parts of waste road surface milling material of 0~3mm, 55 parts of waste road surface milling material of 3~5mm), emulsified asphalt (accounting for 3.5 parts of milling material), waste plastic Powder (the amount accounts for 6.5 parts of the milling material).

[0048] The preparation process includes: mixing the above waste road surface milling materials in proportion, keeping them in an oven at 40-50°C for 1 hour, pouring them into a mixing pot after the heat preservation is over, adding emulsified asphalt, mixing for one cycle, and then adding waste plastic powder, Continue mixing for one cycle to obtain asphalt mixture; take out the asphalt mixture and put it into a microwave heating device to heat up to 160°C, keep it warm for 30s, and then put it into different types of prefabricated compo...

Embodiment 3

[0051] An asphalt concrete prefabricated element based on solid waste materials, consisting of the following components:

[0052] Waste road surface milling material (composition: 50 parts of waste road surface milling material of 0~3mm, 50 parts of waste road surface milling material of 3~5mm), emulsified asphalt (accounting for 3 parts of milling material), waste plastic Powder (the amount accounts for 8 parts of the milling material).

[0053] The preparation process includes: mixing the above-mentioned waste road milling material in proportion, keeping it in an oven at 40-50°C for 1 hour, pouring it into a mixing pot after the heat preservation is over, adding emulsified asphalt, mixing for one cycle, and then adding waste plastic powder, Continue mixing for one cycle to obtain asphalt mixture; take out the asphalt mixture and put it into a microwave heating device to heat up to 160°C, keep it warm for 30s, and then put it into different types of prefabricated component te...

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Abstract

The invention belongs to the field of recycling of renewable resources (road engineering), and particularly relates to an asphalt concrete prefabricated part based on a solid waste material and a preparation method of the asphalt concrete prefabricated part. According to the invention, after the waste pavement reclaimed material and the waste plastic powder are mixed according to a certain proportion, microwave heating is carried out to prepare the asphalt concrete prefabricated part, so that 100% utilization of the pavement milling material is realized, the waste fine material with high asphalt content is fully utilized, the use amount of new asphalt is saved, and the production cost is greatly reduced; the microwave heating mode is adopted, compared with the traditional heating mode, the microwave heating mode has the advantages that the heating speed of the mixture is high, the secondary aging of the new and old asphalt is reduced, the softening and melting effects of the heated waste plastic powder can be improved, the heating uniformity is good, and the curing effect is prevented from being influenced by non-uniform heating of the waste materials. The emulsified asphalt slurry seal mixture is used for carrying out surface treatment on the prefabricated part, so that the water resistance and corrosion resistance of the prefabricated part can be improved, and meanwhile, the mechanical property of the prefabricated part is also improved.

Description

technical field [0001] The invention belongs to the field of recycling of renewable resources (road engineering), and in particular relates to an asphalt concrete prefabricated component based on solid waste materials and a preparation method thereof. Background technique [0002] The transportation industry is the pioneer of the development of the national economy. As an important part of the transportation industry, highways have developed rapidly in recent years. As of April 2021, my country has built the world's largest expressway network, with a total expressway mileage of 160,000 kilometers, ranking first in the world. Asphalt pavement is the most widely used in the construction of expressways in our country because of its advantages of smooth surface, good comfort, strong durability and convenient maintenance. Due to the long-term use of the expressways built in the early days, a large number of ruts, cracks and other diseases have occurred on some asphalt pavements,...

Claims

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Application Information

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IPC IPC(8): C04B26/26C04B28/04C04B18/16C04B24/24C04B40/00C04B41/68C04B111/27
CPCC04B26/26C04B28/04C04B18/16C04B24/001C04B40/0028C04B40/0014C04B41/68C04B41/5079C04B2111/27C04B2111/00612C04B24/36C04B41/478C04B41/4598C04B41/4539Y02W30/91
Inventor 高国华樊超胡学亮王飞刘凯阚涛高宾王西安郑学秋
Owner 山东高速工程咨询集团有限公司
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