Waterproof pavement structure and construction method thereof

A technology of pavement structure and waterproof layer, which is applied in the direction of roads, roads, pavement details, etc., can solve the problems of frost heave damage of pavement structure, adverse effects of base, low tensile strength, etc., to solve groundwater damage, reduce road surface diseases and Destroys problems and reduces friction

Inactive Publication Date: 2010-09-15
CHONGQING JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This measure can greatly reduce the degree of frost heave of the subgrade, but the problem is that due to the rise of capillary water, groundwater will still cause frost heave damage inside the pavement structure
The semi-rigid base material has high compressive strength and can resist the compressive stress generated by the ext

Method used

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  • Waterproof pavement structure and construction method thereof
  • Waterproof pavement structure and construction method thereof

Examples

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Embodiment 1

[0018] Embodiment 1, the surface layer 1 is an ordinary cement concrete surface layer, the base layer 2 is a semi-rigid base layer, the waterproof layer 3 is a waterproof geomembrane with a thickness of 0.1 mm, and the drainage cushion layer 4 is an organic binder stabilized granular material cushion layer, which is water-permeable The filter layer 5 is a permeable filter geotextile layer with a thickness of 0.5mm, and the waterproof pavement structure of the present invention can be paved according to the aforementioned construction method.

Embodiment 2

[0019] Embodiment 2, the surface layer 1 is an asphalt concrete surface layer, the base layer 2 is a flexible base layer, the waterproof layer 3 is a plastic film with a thickness of 0.5mm, the drainage cushion layer 4 is an inorganic binder stable granular material cushion layer, and the water-permeable filter layer 5 It is a permeable filter geotextile layer with a thickness of 1.25mm, and the waterproof pavement structure of the present invention can be paved according to the aforementioned construction method.

Embodiment 3

[0020]Embodiment 3, the surface layer 1 is a fiber concrete surface layer, the base layer 2 is a flexible base layer, the waterproof layer 3 is a waterproof geomembrane with a thickness of 0.3mm, the drainage cushion layer 4 is a granular cushion layer, and the permeable filter layer 5 is a thickness of 2mm The water-permeable filter geotextile layer can be paved according to the aforementioned construction method to pave the waterproof pavement structure of the present invention.

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Abstract

The invention provides a waterproof pavement structure and a construction method thereof. The waterproof pavement structure comprises a finishing coat, a basement layer, a water draining bedding layer and a roadbed from top to bottom, wherein a waterproof layer is arranged between the basement layer and the water draining bedding layer, the waterproof layer is naturally separated from the basement layer and the water draining bedding layer, and a permeable filter layer is arranged between the water draining bedding layer and the roadbed. The construction method of the structure comprises the step of: sequentially paving the roadbed, the permeable filter layer, the water draining bedding layer, the waterproof layer, the basement layer and the finishing layer from bottom to top. The pavement structure can effectively prevent the pavement and the road bed from the damages of road surface water and ground water, thereby prolonging the service life of the road.

Description

technical field [0001] The invention relates to a pavement structure and a construction method thereof, in particular to a waterproof pavement structure and a construction method thereof. Background technique [0002] In fields such as roads, airport runways and municipal facilities, shortened pavement life has become a major problem in construction. There are many reasons for early failure and shortened life of pavement. Among them, research shows that "water is enemy number one". According to the source of water, road surface water damage can be divided into road surface water damage and ground water damage. [0003] Road surface water damage mainly means that road surface water (such as rainwater) enters the interior of the surface layer through the pores, joints or cracks of the surface layer, resulting in water damage to the surface layer material, and the water further infiltrates into the base layer, causing the base layer to be scoured and damaged by dynamic water....

Claims

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Application Information

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IPC IPC(8): E01C7/32E01C11/00E04B1/64
Inventor 马银华易志坚杨庆国何小兵黄锋唐羽
Owner CHONGQING JIAOTONG UNIVERSITY
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