Cement concrete pavement structure provided with continuous steel bars

A technology of cement concrete and pavement structure, applied in the direction of coagulating pavement, road, road, etc. paved on site

Active Publication Date: 2015-10-21
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] The technical problem to be solved by the present invention is to develop a cement concrete pavement structure with continuous steel bars. This pavement structure c

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  • Cement concrete pavement structure provided with continuous steel bars
  • Cement concrete pavement structure provided with continuous steel bars
  • Cement concrete pavement structure provided with continuous steel bars

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[0019] In order to better understand the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the present invention.

[0020] Such as Figures 1 to 4 As shown, the cement concrete pavement structure of the present invention is provided with continuous steel bars, including rubber cement concrete upper layer 1, cement concrete lower layer 2 with continuous steel bars, asphalt concrete anti-scour layer 3, roller compacted concrete base 4, gravel cushion 5.

[0021] Among them, the upper layer 1 of rubber cement concrete has a thickness of 5cm, a standard value of bending and tensile strength of 5.0MPa, and a rubber powder content of 20kg / m 3 , the rubber powder particles are 60 meshes, and the horizontal induction slits 11 with a length of 50 cm,...

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Abstract

The invention discloses a cement concrete pavement structure provided with continuous steel bars. The pavement structure comprises a base layer. Roller compacted concrete is adopted in the base layer. A broken stone hardcore is laid below the base layer. Cement concrete surface layers are laid on the base layer. The cement concrete surface layers include the upper surface layer and the lower surface layer. Rubber cement concrete is adopted in the upper surface layer. A transverse induction kerf is arranged on the edge of the upper surface layer on the left side of the driving direction. The continuous transverse steel bars, the continuous longitudinal steel bars and a slidable support are arranged at the portion, within the range of a carriageway and one half of the width (L) of a hardened verge, of the lower surface layer. Plain concrete is formed at the portion, within the other half of the width (L) of the hardened verge, of the lower surface layer. A longitudinal joint is arranged at the portion one half of the width of the hardened verge. A bituminous concrete anti-scouring layer is arranged between the base layer and the surface layers. The pavement structure can solve the problems of existing cement concrete pavements and continuous reinforced concrete pavement structures and can be widely applied to high-grade highways, tunnel pavements and the like on the heavy-duty traffic condition.

Description

technical field [0001] The invention belongs to the technical field of road engineering and relates to a cement concrete pavement structure provided with continuous steel bars. Background technique [0002] The early damage of pavement in our country is relatively serious, and the service life of pavement structure is often lower than the design service life. It is urgent to improve the durability of road engineering and promote the faster and better development of my country's transportation industry. [0003] In the 1980s and 1990s in my country, a large number of cement concrete pavements were built. In order to solve the problems of shrinkage of cement concrete during hardening and thermal expansion and contraction of concrete panels, the cement concrete pavement needs to be equipped with vertical and horizontal joints. During use, it is easy to In the weak part of the seam, defects such as emptying and broken boards occur first, which greatly affect the service quality a...

Claims

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Application Information

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IPC IPC(8): E01C7/32E01C11/18
Inventor 李盛刘朝晖曹前柳力王骁帆颜燕舞刘兴武
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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