Mineral powder capable of being heated by microwave in bituminous concrete and application thereof

A technology of asphalt concrete and microwave heating, which is applied in the field of asphalt concrete, can solve the problems of uneven distribution, large amount of coarse aggregate and fine aggregate, and great difficulty, so as to improve controllability, microwave absorption efficiency, and diffusion The effect of uniformity

Inactive Publication Date: 2010-03-17
袁斌 +1
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Problems solved by technology

However, due to the large amount of coarse and fine aggregates in asphalt concrete, uneven distribu

Method used

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  • Mineral powder capable of being heated by microwave in bituminous concrete and application thereof

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Embodiment Construction

[0024] In this example, the asphalt concrete and the amount of asphalt added to the asphalt concrete were combined according to conventional forms, and the asphalt ratio (ie, the specific gravity of asphalt and stone material) was combined according to conventional asphalt concrete. The proportion of aggregated materials is also screened and combined according to conventional methods. For example, by weight, 10-15mm gravel, 5-10mm gravel, 0-5mm stone chips, medium sand, and mineral powder are respectively 27 and 22. , 35, 12, 4.

[0025] The difference from the prior art is that in this embodiment, all or part of the ore powder is replaced by ferrite, and the ferrite accounts for 10% to 100% of the total amount of ore powder by weight percentage.

[0026] In practical application, for the upper layer, middle layer and lower layer on the same road section, increasing the content of ferrite in turn can adjust the distribution of microwave energy in the depth direction of the roa...

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Abstract

The invention provides mineral powder capable of being heated by microwave in bituminous concrete and an application thereof, which is characterized by comprising 10-100% of ferrite in weight percent.The application of the mineral powder is as follows: as for an upper surface layer, a middle surface layer and a lower surface layer of the bituminous concrete layer on the same road segment, the ferrite contents of the mineral powder in the bituminous concrete for each surface layer is respectively set according to requirements so as to regulate the distribution of microwave energy in the depthdirection of road surface and enable each surface layer to obtain required heating temperature, thus realizing controllability of bituminous concrete heated by microwave. The bituminous concrete dopedwith the mineral powder in the invention has higher absorption efficiency in the aspects of microwave heating and more uniform diffusion of the microwave energy in the bituminous concrete compared with the conventional bituminous concrete, and effectively controls the distribution of the microwave energy in the depth direction of the road surface.

Description

technical field [0001] The invention relates to asphalt concrete which can be heated by microwaves, more specifically mineral powder in asphalt concrete which can be heated by microwaves and its application. Background technique [0002] There are many maintenance methods for asphalt concrete pavement. The invention patent application with the application number "200910116510.4" and the title "Preventive Regenerative Maintenance Method for Asphalt Pavement" proposed by the applicant uses microwaves to heat asphalt concrete. The way of heating asphalt concrete is very unsuitable for the use of existing asphalt concrete, because: [0003] Microwave heating is not carried out by heat conduction, it is heated by heat radiation. The dielectric material absorbs microwave energy and converts it into heat energy. Under the speed change of the microwave electromagnetic field millions of times per second, a dipole will be formed in the dielectric material. The electrons or existing d...

Claims

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Application Information

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IPC IPC(8): C04B18/12C04B26/26
CPCY02W30/91
Inventor 袁斌黄亚茹
Owner 袁斌
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