Asphalt foaming cavity structure and method for measuring and calculating foam asphalt expansion rate

A foamed asphalt and expansion rate technology, which is applied in the field of asphalt foaming cavity structure, can solve the problems of less analysis of the structural parameters of the foaming cavity and no clear method for the expansion rate of foamed asphalt.

Pending Publication Date: 2017-05-10
INNER MONGOLIA UNIV OF TECH
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  • Claims
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AI Technical Summary

Problems solved by technology

The performance of foamed asphalt depends on the preparation process and equipment. Many scholars at home and abroad have studied the control factors of the asphalt foaming process (asphalt type, asphalt temperature, foaming water consumption, etc.), but the analysis of the structural parameters of the foaming cavity is relatively difficult. few
In addition, CFD software is currently used to analyze the foaming behavior of asphalt. Foamed asphalt is a product in a metastable state. The volume of the original asphalt expands rapidly after foaming. There is no clear method for calculating the expansion rate of foamed asphalt in CFD software.

Method used

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  • Asphalt foaming cavity structure and method for measuring and calculating foam asphalt expansion rate
  • Asphalt foaming cavity structure and method for measuring and calculating foam asphalt expansion rate
  • Asphalt foaming cavity structure and method for measuring and calculating foam asphalt expansion rate

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Embodiment Construction

[0035] A kind of asphalt foam cavity structure and the measuring and calculating method of foamed asphalt expansion rate, its main steps include (see figure 1 Shown): Structural design and modeling of the asphalt foaming chamber, meshing of the model and setting of boundary conditions, numerical calculation of the flow field inside the foaming chamber, theoretical calculation of the expansion rate of foamed asphalt, through Design-Erpert Regression analysis and significance analysis are used to determine the design points of the structural parameters of the asphalt foaming chamber, analyze the influence of the main structural parameters on the asphalt foaming behavior, and optimize the main structural parameters of the foaming chamber by using the response surface optimization method. The specific implementation process is as follows:

[0036] Preliminary design is carried out to the structure of asphalt foam chamber, utilize three-dimensional software Pro / E (or UG / Solid works...

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Abstract

The invention discloses an asphalt foaming cavity structure for road construction machinery, and a method for measuring and calculating a foam asphalt expansion rate in CFD software, and is applicable to the technical field of foam asphalt construction. In order to efficiently prepare foam asphalt with high quality, an internal flow field is analyzed by using a numerical computation method based on the CFD software, key parameters of the asphalt foaming cavity are researched in combination with a surface optimization method, the value range of the key parameters of the asphalt foaming cavity is determined, and the method for measuring and calculating the foam asphalt expansion rate in the CFD software is provided.

Description

[0001] Technical field: [0002] The invention relates to an asphalt foam cavity structure used in road construction machinery and a method for measuring the foamed asphalt expansion rate in CFD software, which is suitable for the technical field of foamed asphalt construction. [0003] Background technique: [0004] Under the premise that the country pays equal attention to environmental protection and resource conservation, foamed asphalt regeneration technology has become the main process of large-scale road repair with the absolute advantages of "energy saving, environmental protection, and low cost". It can not only effectively use recycled asphalt pavement materials, reduce the exploitation of oil resources, and maintain water and soil, but also the construction is less affected by seasons and climates, without interrupting traffic. Moreover, foamed asphalt is used as a binder to pave the road surface, which can not only save the amount of asphalt, but also greatly enhanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20G06F2113/26
Inventor 程海鹰魏富栋陈文岩赵永锋李志强贾磊
Owner INNER MONGOLIA UNIV OF TECH
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