Development of new chloride deicing: Anti-freezing agents

The chloride group (calcium chloride dihydrate, sodium chloride, magnesium chloride hexahydrate) has occupied most of the deicing/anti-freezing agents currently used. The reasons are that they have high snow/ice melting capability and low price in the chloride group. In recent years, there has been talk about the influence on the environment by deicing/anti-freezing agents. When the above agents are spread on the street, there are some problems such as the corrosion of metal materials like the parts of a car or a guardrail, and other problems such as the degrading of concrete. Further, the reduction of the amount of the agents spread is required in order to reduce the influence on the environment. As a result of a study in our company, in order to solve these problems, we found that the following methods are effective. By mixing a little addition of the amino-acid compounds into the chloride group deicing/anti-freezing agents, metal corrosion and concrete degradation could be controlled up to about 15 per cent and 70 per cent, respectively. In case of mixing some kind of grain grounds, corrosive of metal materials could also be controlled up to 80 per cent. The lab examination proved that the mixing two kinds of chloride group agents improved snow/ice melting capability. As a result, the total amount of the mixed agents spread could be less than the amount of each agent spread. (A). For the covering abstract of the conference see ITRD E212110.

  • Authors:
    • SUGA, H
    • SUZUKI, T
  • Publication Date: 2002

Language

  • French

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01043064
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Files: ITRD
  • Created Date: Mar 6 2007 8:07AM