Method for designing mixing ratio of construction waste for asphalt mixture

An asphalt mixture and mix design technology, applied in design optimization/simulation, calculation, special data processing applications, etc., can solve problems such as environmental pollution, and achieve the goal of alleviating insufficient supply, significant environmental protection and economic significance, and resource saving. Effect

Inactive Publication Date: 2018-09-14
CHANGAN UNIV
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Problems solved by technology

A large amount of construction waste generated in the process of building construction and demolition will also cause serious problems of environmental pollution.

Method used

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  • Method for designing mixing ratio of construction waste for asphalt mixture
  • Method for designing mixing ratio of construction waste for asphalt mixture
  • Method for designing mixing ratio of construction waste for asphalt mixture

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Embodiment Construction

[0065] The present invention uses different amounts of RCA to replace part of the raw materials and applies it to road construction, establishes a crushing model according to the change of the surface area of ​​the parent rock before and after crushing, and proposes a new crushing process by analyzing different crushing methods. The recycled aggregate is obtained through the new crushing process, and the corresponding mix ratio design is carried out. The final index data design meets the latest specification requirements, and then the optimized gradation design is carried out to establish the curve relationship between the oil-stone ratio and various indicators. Considering these curve relationships comprehensively, determine the optimal asphalt ratio of each RCA content, so that the construction waste generated by abandoned buildings can be used to replace natural gravel as the main raw material for road construction.

[0066] refer to figure 1 , a kind of mixing design metho...

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Abstract

The invention relates to a method for designing mixing ratio of construction waste for asphalt mixture, which comprises the following steps of: utilizing suitable waste source, establishing a buildinggarbage crushing model and a crushing process, and proposing a new crushing process; a recycled aggregate is obtained through the new crushing process, the corresponding matching ratio design is carried out, the design of the index data is detected to meet the latest specification requirement, then, the test data is used to optimize the gradation design, and RCA with different dosage is used to replace part of raw materials in road construction, and the possibility and feasibility of the construction waste for the asphalt mixture design are ensured; in this way, replacing the natural crushedstone with the construction waste generated by the waste building, which is used as the main raw material of the road construction; not only can the resources be saved, but also the influence of the construction waste on the environment can be relieved, the problem of insufficient supply of the natural aggregate in the construction process can be relieved to a certain extent, and the supply of high-quality aggregate is provided; the method has a remarkable environmental protection meaning, economic significance and social benefit.

Description

technical field [0001] The invention belongs to the field of road engineering materials, and in particular relates to a method for designing the proportion of asphalt mixture using construction waste. Background technique [0002] According to survey statistics, my country consumes nearly 600 million tons of natural crushed stone aggregates every year, and waste cement concrete accounts for about 60%. Some experts predict that in the future road construction, there will be insufficient supply of high-quality natural aggregates, which will limit the construction process of my country's highways, and expanding the types of road aggregates has become an important research topic in the domestic construction industry. It is also an urgent problem for the construction industry to deal with a large amount of construction waste generated in the process of building construction and demolition. It can be seen everywhere that construction waste is randomly piled up and simply landfill...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/13G06F30/20
Inventor 丁龙亭何璐董仕豪周博赵静丁宪钦蒋璐
Owner CHANGAN UNIV
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