GB/T 35453-2017
ActiveRigid polyurethane foam board for frozen soil subgrade (DLPU)
冻土路基用硬质聚氨酯泡沫板（DLPU）
Application Summary AI generated
This standard specifies the technical requirements, test methods, inspection rules, and packaging for rigid polyurethane foam boards used as thermal insulation in frozen soil subgrades. It is applied in cold-region infrastructure projects, such as railways and highways, to prevent thaw settlement and maintain subgrade stability by insulating against heat transfer. The standard ensures material performance under low-temperature and freeze-thaw cycling conditions.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.