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A Double-layer Continuously Reinforced Concrete Pavement Structure Suitable for Rainy Areas

A technology of reinforced concrete and pavement structure, which is applied to cohesive pavement paved on site, roads, roads and other directions, which can solve problems such as road damage, achieve cost savings, improve bending and tensile strength, and increase service life.

Active Publication Date: 2017-10-13
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to develop a double-layer continuous reinforced concrete pavement structure suitable for rainy areas. This pavement structure can not only effectively solve the problem of serious early damage to roads in rainy areas due to rich water systems or poor drainage. , and has good road performance and social and economic benefits

Method used

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  • A Double-layer Continuously Reinforced Concrete Pavement Structure Suitable for Rainy Areas
  • A Double-layer Continuously Reinforced Concrete Pavement Structure Suitable for Rainy Areas
  • A Double-layer Continuously Reinforced Concrete Pavement Structure Suitable for Rainy Areas

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Embodiment

[0026] Such as figure 1 As shown, a double-layer continuously reinforced concrete pavement structure suitable for rainy areas of the present invention includes a cement concrete surface layer 1, a fine-sized densely graded asphalt concrete interlayer 2, a lean concrete upper base 3, and an asphalt macadam lower base 4 , Graded gravel cushion 5.

[0027] Among them, the thickness of the cement concrete surface layer 1 is 24cm, and the standard value of bending and tensile strength is 5.0MPa. The horizontal glass fiber reinforcement 7 and the longitudinal glass fiber reinforcement 6 continuous with the lower layer; the thickness of the lean concrete upper base layer 3 is 24cm, and the cement dosage is 178kg / m 3 , the standard value of bending and tensile strength is 4.0MPa; the thickness of base layer 4 of asphalt macadam is 10cm, the maximum particle size of aggregate is 37.5mm, and the amount of asphalt is 3.5%; the thickness of graded gravel cushion 5 is 20cm, and the crushe...

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Abstract

The invention discloses a double-layer continuous reinforced concrete pavement structure suitable for a pluvial region. The pavement structure comprises a base layer which is divided into an upper base layer body and a lower base layer body. The upper base layer body is made of lean concrete. The lower base layer body is made of bituminous macadam. A cement concrete pavement layer is paved on the base layer, and a graded broken stone hardcore is paved under the base layer. The cement concrete pavement layer is provided with double-layer continuous glass fiber reinforced polymer rebars and supporting bases. The double-layer continuous glass fiber reinforced polymer rebars comprise the upper-layer continuous longitudinal glass fiber reinforced polymer rebars, the lower-layer continuous transverse glass fiber reinforced polymer rebars and the lower-layer continuous longitudinal glass fiber reinforced polymer rebars. Transverse joints are arranged on the pavement layer at intervals of 150 m. A pre-cutting joint is arranged at the well cover on the pavement layer. A fine type dense grade asphalt concrete interlayer is arranged between the base layer and the pavement layer. The base layer and the pavement layer are provided with 2%-3% crown slopes. According to the double-layer continuous reinforced concrete pavement structure suitable for the pluvial region, the problem that the pavement structure of a road in the pluvial region is severely damaged early due to abundant drainage systems or impeded drainage can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of road engineering and relates to a double-layer continuous reinforced concrete pavement structure suitable for rainy areas. Background technique [0002] At present, roads generally suffer from poor drainage, serious water accumulation on road surfaces and pavement structures, and extreme weather events such as torrential rains caused by urban heat island effect and other factors frequently occur. , which greatly affects the overall strength and stability of the pavement structure, causing serious early damage to the road, often causing traffic interruption or congestion due to road maintenance, and even causing traffic accidents. It is urgent to improve the durability of road engineering. [0003] A large number of cement concrete pavements were built in my country in the 1990s. The cement concrete pavement generally needs to be provided with joints to solve the problems of thermal expansion and contracti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C7/14E01C11/04E01C11/22
CPCE01C7/14E01C7/145E01C11/04E01C11/226Y02A30/60
Inventor 李盛刘朝晖曹前柳力黄优
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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