Waterproof sandwich material

A technology of interlayer material and modified asphalt, which is applied in the direction of roads, pavement details, roads, etc., can solve the problems that building waterproof interlayer membranes are difficult to meet the requirements, and achieve tight interlayer bonding, high bonding strength, and good temperature resistance Effect

Inactive Publication Date: 2010-09-08
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] Due to the great difference between building waterproofing and road engineering waterproofing in terms of environmental and mechanical properties, especially roads need to bear large vehicle vibration loads and horizontal loads, ordinary building waterproof interlayer membranes are generally difficult to meet the requirements

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0030] The asphalt used for the waterproof interlayer material is selected, and the asphalt has excellent high temperature stability and low temperature deformation resistance. The modifier used is styrene-butadiene-styrene block copolymer (SBS), and the addition amount is 6%. High-speed shearing method was used for indoor test, and colloid mill was used for production on site. The SBS used in this example is produced by Yueyang Petrochemical General Plant.

[0031] According to the preparation method of existing waterproof interlayer material, above-mentioned modified bitumen is coated on 160g / m 2 The polyester filament tire base cloth is used to obtain a waterproof interlayer material provided by the present invention after cooling. The thickness of the modified asphalt is 0.1cm.

[0032] After testing, its performance indicators meet the requirements in Table 3.

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Abstract

The invention relates to a waterproof material suitable for road engineering. A waterproof sandwich material comprises modified asphalt and base material cloth which is polyester filament base material cloth. The waterproof sandwich material provided by the invention is insoluble in water, not water-permeable, not influenced by freeze-thaw cycle, and acid, alkali and salt resistant, has high bonding strength with concrete materials, does not bubble or delaminate, can resist sliding, has close interlayer combination and good temperature resistance, can resist high temperature of over 170 DEG C, and has high horizontal and longitudinal tensile strength and good flexibility.

Description

technical field [0001] The invention relates to a waterproof material suitable for road engineering. Background technique [0002] According to the investigation and analysis, more than 70% of the early road diseases are caused by water damage. One of the effective ways to solve the water damage of the asphalt pavement is to install a waterproof layer between the asphalt pavement and the underlying layer. In the case of paving asphalt pavement and reinforced concrete bridge deck paving asphalt pavement, the waterproof layer must not only undertake the waterproof function, but also have the function of delaying or reducing reflective cracks. The traditional asphalt pavement waterproof layer is difficult to meet the requirements; The waterproofing of various structures of paved asphalt concrete surfaces has always been a problem that plagues my country's construction industry. [0003] Often, it is desirable to utilize waterproof interlayer materials in buildings. For example,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C11/00
Inventor 刘朝晖秦仁杰黄云涌李盛
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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