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Compounding method of composite anti-microbial aging agent for asphalt pavement

An anti-microbial and asphalt pavement technology, applied in building structures, building components, building thermal insulation materials, etc., can solve the problems of short service life and poor anti-microbial aging performance of asphalt pavement.

Active Publication Date: 2019-01-11
NANJING FORESTRY UNIV
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AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a compounding method of asphalt pavement composite antimicrobial aging agent, which solves the problem of poor antimicrobial aging performance and short service life of asphalt pavement in the dark, wet and polluted sections of forest and scenic roads, tunnels and rural roads problems, thereby improving the durability of asphalt pavement

Method used

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Embodiment Construction

[0013] The invention provides a method for compounding an asphalt pavement composite antimicrobial aging agent, and the specific implementation steps are as follows:

[0014] (1) According to the investigation of the species and quantity of microorganisms on the asphalt pavement of dark, humid and polluted roads in forests and scenic spots, tunnels and rural roads, representative different strains were screened out, picked, marked and separated in Store in a sterilized rubber stopper slant medium and store in a 4°C refrigerator for later use;

[0015] (2) Add the prepared organic antibacterial agent, inorganic nano-antibacterial agent and photocatalyst enzyme antibacterial agent into the bacterial liquid of different strains according to a certain proportion, and use a high-power microscope to observe the growth inhibition of various antibacterial agents on different strains ;

[0016] (3) Determine the antimicrobial agent with the best growth inhibitory effect on each strain...

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Abstract

The invention relates to a compounding method of a composite anti-microbial aging agent for an asphalt pavement, belongs to the technical field of an asphalt anti-aging agent and solves the problems of poor anti-microbial aging performance and short service life of the asphalt pavement of a current woodland and scenic road, a tunnel, as well as a dark, wet and polluted road section of a rural road. The compounding method comprises the steps of isolating different representative strains which are screened according to microbial species and number on the asphalt pavement in a sterile rubber plugslant culture-medium; respectively adding different antibacterial agents into bacteria solutions of different strains according to a certain ratio, and observing the growth inhibition situation of various antibacterial agents for different strains; determining the antibacterial agents and the usage amounts thereof, and preliminarily determining a compounding scheme of the composite anti-microbialaging agent according to the content of the microbial strains on the asphalt pavement; and observing the comprehensive inhibition effect of the composite anti-microbial aging agent, and optimizing the compounding scheme to prepare the composite anti-microbial aging agent. The compounding method of the composite anti-microbial aging agent for the asphalt pavement has important significance for improving the anti-aging performance of the asphalt pavement and prolonging the service life of the asphalt pavement.

Description

technical field [0001] The invention relates to a method for compounding an asphalt pavement composite antimicrobial aging agent, and belongs to the technical field of asphalt antiaging agents. Background technique [0002] The reproduction of microorganisms and molds is the main cause of biological aging of materials. Antifungal agents are usually added to polymer materials to fundamentally inhibit the growth of molds or coat anti-microbial factors on the surface of materials to prevent biological aging. Traditional anti-biological aging agents are prepared by organic phosphoric acid compounds, organic tin compounds, tetrachloroisophthalonitrile, benzimidazoles and other compounds. [0003] With the advancement of nanotechnology, metal-inorganic nano-antiaging agents have become a research hotspot. The principle of this type of anti-aging agent is to use the bactericidal and antibacterial functions of titanium, copper, silver, zinc and other metals and their ions. service...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08K5/00C08K3/015
CPCC08K5/0058C08K3/015C08L95/00
Inventor 许涛张韩帅王斯文
Owner NANJING FORESTRY UNIV
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