A multi-component compounding scheme design method for high-efficiency asphalt flame retardant

A design method and flame retardant technology, applied in building components, building insulation materials, buildings, etc., can solve problems such as poor flame retardant effect, achieve high scientific value, improve driving comfort and safety, and improve long-term use performance Effect
CN103468007BInactive Publication Date: 2015-11-25NANJING FORESTRY UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING FORESTRY UNIV
Publication Date
2015-11-25
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention provides a design method of an efficient asphalt flame retardant multi-element compounding scheme, aiming at solving the problems of a current asphalt flame retardant which is poor in flame retardant efficiency and cannot implement complete thermal decomposition on asphalt to achieve efficient flame retardation. The method comprises the steps of firstly, implementing a thermegravimetry experiment depending on various components of asphalt to understand graded distribution characteristics of thermal decomposition performances of various components of the asphalt; and respectively optimizing flame retardants matched to thermal decomposition temperature intervals of various components of the asphalt and additive amounts of the flame retardants, so as to realize flame retardation on the level of various components; secondly, depending on contents of various components in the asphalt, primarily designing a flame retardant compounding scheme, investigating flame retardant efficiency of the compound multi-element flame retardant on the asphalt as well as a synergistic effect among various flame retardants, thus optimizing the flame retardant compounding scheme primarily; and finally, evaluating influence of the compound flame retardant on pavement performances of the asphalt and mixture thereof, so as to further optimize the flame retardant compounding scheme and perfecting design of the flame retardant multi-element compounding scheme. The method provided by the invention can realize efficient flame retardation in the full thermal decomposition process of the asphalt, so as to enhance fire safety of an asphalt pavement.
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Description

Technical field

[0001] The invention is a design method for a multi-element compounding scheme of a high-efficiency flame retardant for road asphalt materials, and belongs to the technical field of road asphalt pavement fire safety. Background technique

[0002] In recent years, my country's urban construction has developed rapidly, and large-scale urban underground passages have also been developed simultaneously as an important part of the urban traffic pattern, such as the Nanjing Xuanwu Lake Tunnel. Underground passages can be used to overcome terrain and elevation barriers, improve alignment, shorten driving mileage, increase driving speed, and protect the ecological environment in the construction of mountainous and lake cities. Therefore, large-scale underground passages are widely used in urban construction. At present, large-scale underground passages are developing in the direction of growth, traffic volume has increased, and driving speed has increased, which has beco...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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