Open AccessA study of the insulating and anti-frost heave effects of polystyrene boards under molded bag concrete conditions
Author(s) -
Fuqiang Guo,
Gangtie Li,
Manjin Cheng
Publication year - 2021
Publication title -
water policy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.488
H-Index - 56
eISSN - 1996-9759
pISSN - 1366-7017
DOI - 10.2166/wp.2021.127
Subject(s) - frost heaving , frost (temperature) , polystyrene , geotechnical engineering , irrigation , inner mongolia , materials science , expanded polystyrene , environmental science , composite material , geology , agronomy , biology , polymer , china , political science , law
In this study, the channel frost heaving actions in the Hetao irrigation area of Inner Mongolia were examined and a field in-situ test platform was established. Then, experimental investigations were conducted regarding the insulating and anti-freeze effects of polystyrene boards under the conditions of concrete bags with different thicknesses. In this study's experiments, concrete bags with different thicknesses were set, along with a test block of polystyrene boards with different thicknesses. The research results showed that by adding 2–5 cm molded bags, the total accumulated temperature increased in the range of 3.93–9.22% and the frost heave rate decreased by between 18.28 and 55.44% concrete, on the basis of 10 cm molded bag concrete. In addition, when 4–8 cm polystyrene boards were laid, the total accumulated temperature increased by 207.63–272.25%, and the frost heave rate decreased by between 71.43 and 96.6%. The absolute slope of the curve fitting of the frost heave rates and the soil temperatures decreased by 44.6–58.7%.
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