Waterproof asphalt pavement structure and construction method thereof

An asphalt pavement and bitumen technology, which is applied in the field of waterproof asphalt pavement structure and its construction, can solve problems such as adverse effects on the base layer, frost heave damage of the pavement structure, frost heave of the cushion layer, etc.

Pending Publication Date: 2021-05-04
安徽水利嘉和建筑工程有限公司 +1
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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 pavemen

Method used

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  • Waterproof asphalt pavement structure and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] see figure 1, a waterproof asphalt pavement structure, comprising an asphalt wear surface layer 1, an asphalt middle and lower layer 2, a roadbed surface layer 3, and a roadbed 4, and a waterproof adhesive is arranged between the asphalt wear surface layer 1 and the asphalt middle and lower layer 2 Layer 5, an impermeable see-through seal layer 6 is set between the lower layer 2 of the asphalt and the roadbed surface layer 3, and the roadbed surface layer 3 is provided with drainage pipes 7 arranged at intervals along the length direction of the road surface, and the drainage pipe 7 is provided with drainage holes 71 in the circumferential direction , the length direction of the drainage pipe 7 is consistent with the width direction of the road surface, a drainage ditch 8 is arranged on one side of the road surface width direction, the drainage ditch 8 is arranged along the length direction of the road surface, the lower side of the drainage ditch 8 extends to the subgra...

Embodiment 2

[0041] see figure 1 , a waterproof asphalt pavement structure, comprising an asphalt wear surface layer 1, an asphalt middle and lower layer 2, a roadbed surface layer 3, and a roadbed 4, and a waterproof adhesive is arranged between the asphalt wear surface layer 1 and the asphalt middle and lower layer 2 Layer 5, an impermeable see-through seal layer 6 is set between the lower layer 2 of the asphalt and the roadbed surface layer 3, and the roadbed surface layer 3 is provided with drainage pipes 7 arranged at intervals along the length direction of the road surface, and the drainage pipe 7 is provided with drainage holes 71 in the circumferential direction , the length direction of the drainage pipe 7 is consistent with the width direction of the road surface, a drainage ditch 8 is arranged on one side of the road surface width direction, the drainage ditch 8 is arranged along the length direction of the road surface, the lower side of the drainage ditch 8 extends to the subgr...

Embodiment 3

[0057] A construction method for a waterproof asphalt pavement structure, comprising the following steps:

[0058] (1) First build the subgrade 4, then pave the pavement base layer evenly and evenly on the upper surface of the subgrade 4, the pavement base layer is laid layer by layer, and the pavement base layer is laid by artificially burying the drainage pipe 7, and ensuring that the drainage pipe 7 is on one side in the length direction low altitude;

[0059] (2) After the pavement base layer is laid, clean up the waste material in the drain pipe 7, and lay the asphalt middle and lower layer 2 and the see-through seal layer 6;

[0060] (3) After the asphalt middle and lower layer 2 is laid, the waterproof adhesive layer 5 is evenly sprayed on the asphalt middle and lower layer 2, and wait for the demulsification and evaporation of the emulsified asphalt;

[0061] (4) After the emulsified asphalt demulsification and evaporation are completed, lay the asphalt abrasive surfa...

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Abstract

A waterproof asphalt pavement structure comprises an asphalt wearing surface layer, an asphalt middle-lower surface layer, a roadbed surface layer and a roadbed; a waterproof adhesive layer is arranged between the asphalt wearing surface layer and the asphalt middle-lower surface layer; a waterproof permeable sealing layer is arranged between the asphalt middle-lower surface layer and the roadbed surface layer; a drainage pipe is arranged in the roadbed surface layer, and drainage holes are formed in the circumference of the drainage pipe; and one side of the road width direction is provided with a drainage ditch, the lower side of the drainage ditch extends to the roadbed, and the side, close to the drainage ditch, of the drainage pipe is communicated with the drainage ditch. The construction method comprises the following steps: firstly, building a roadbed, then paving the roadbed surface layer on the roadbed, burying the drainage pipe in the paving process of the roadbed surface layer, cleaning waste materials in the drainage pipe, and then paving the asphalt middle-lower surface layer and the permeable sealing layer; then uniformly spraying the waterproof adhesive layer on the asphalt middle-lower surface layer, and after demulsification and evaporation of emulsified asphalt are completed, paving the asphalt wearing surface layer and properly rolling; and building the drainage ditch at a reserved position on one side of the road surface in the width direction, and enabling the drainage pipe to be communicated with the drainage ditch.

Description

technical field [0001] The invention relates to a waterproof asphalt pavement structure and a construction method thereof. Background technique [0002] In fields such as highways 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. The durability of asphalt pavement on the research surface depends on the ecological environment of asphalt pavement; the effective way to increase the life of asphalt pavement is to improve the structure of asphalt pavement. The focus is on enhancing the structural stability of asphalt pavements and reducing pavement water damage. However, water damage can be divided into road surface water damage and groundwater damage. [0003] Asphalt pavement structure refers to the structure of asphalt pavement, which can be divided into suspension-dense structure, dense-skeleton structure, and skeleton-void structure. Suspension-dense struc...

Claims

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Application Information

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IPC IPC(8): E01C7/32E01C11/22E01C7/35E03F3/04C04B26/26C04B111/27
CPCC04B26/26C04B2111/0075C04B2111/27E01C7/32E01C7/353E01C11/227E03F3/04E03F3/046C04B14/14C04B16/0683C04B22/064
Inventor 王文耀韩志贤张凤根薛祥勇
Owner 安徽水利嘉和建筑工程有限公司
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