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Road surface structure and construction method thereof

A technology for pavement structure and pavement base, applied in the field of building materials, can solve problems such as unfavorable road construction, and achieve the effects of improving structural compactness, reducing void ratio, and improving service life

Active Publication Date: 2018-07-24
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide a pavement structure and its construction method for the technical problem that the nickel slag contains a small amount of toxic metal elements, which is not conducive to road construction.

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Embodiment Construction

[0026] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

[0027] In one embodiment of the present invention, a pavement structure is provided, such as figure 1 As shown, a pavement cushion 1, a pavement base layer 2, and a pavement surface layer 3 are sequentially arranged from bottom to top, wherein the pavement base layer 2 includes a clay...

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Abstract

The invention relates to a road surface structure. The road surface structure comprises a road surface bed course, a road surface foundation course and a road-surface surface course, wherein the roadsurface bed course comprises a nickel ore slag layer, a clay layer and a seepage-proof layer; the inner surface of the clay layer is clung to the outer surface of the nickel ore slag layer; the innersurface of the seepage-proof layer is clung to the outer surface of the clay layer; the outer surface of the bottom of the road-surface surface course is clung to the outer surface of the top of the seepage-proof layer; the outer surface of the top of the road surface bed course is clung to the outer surface of the bottom of the seepage-proof layer; water of the outer part passes through the seepage-proof layer and the clay layer in sequence and can enter the nickel ore slag layer; the clay layer and the seepage-proof layer have a dual protection effect, so that toxic metallic elements in thenickel ore slag layer can be effectively prevented from seeping into underground water. Furthermore, the invention further provides a construction method of the road surface structure; the method comprises the following steps: paving the road surface bed course, and paving the road surface foundation course composed of the seepage-proof layer, the clay layer and the nickel ore slag layer; finally,paving the road-surface surface course to finish construction of the road surface structure.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a pavement structure and a construction method thereof. Background technique [0002] Nickel slag is industrial solid waste slag discharged during the process of smelting ferronickel alloys. With the rapid growth of my country's social economy and the continuous improvement of industrialization level, the demand for nickel is gradually increasing, resulting in an increase in the discharge of nickel slag year by year. At present, the level of resource utilization of nickel slag is still low, and a large amount of nickel slag is stacked in the open air or disposed of in landfill, which not only occupies a large amount of land, but also causes serious pollution to the environment. The problem of effective disposal and efficient utilization of nickel slag is imminent. In addition, nickel slag contains trace amounts of toxic metal elements, which will cause pollution if it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/04E01C3/06E01C7/32C04B28/02
CPCE01C3/04E01C3/06E01C7/32C04B28/02C04B2111/0075C04B18/12C04B18/141C04B14/02C04B20/0076
Inventor 尹平保袁科杨莹贺炜
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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