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近年来,在季节冻土区开始大量应用聚苯乙烯硬质泡沫板做涵闸保温基础材料,它具有防冻效果好、节省排水费用、造价低、施工简便、安全可靠等优点。但经检查发现有的涵闸保温基础泡沫板,不符合水工建筑物保温基础材料的技术指标,影响水工建筑物的安全。因此在购置保温板时,要保证聚苯乙烯硬质泡沫板的技术指标。各项技术指标应达到如下标准:
In recent years, a large number of polystyrene rigid foam boards are used as the base material for culvert insulation in seasonal frozen soil areas. It has the advantages of good antifreezing effect, saving drainage costs, low cost, simple construction, safety and reliability. However, after inspection found that some of the Culvert insulation base foam board, does not meet the technical requirements of insulation materials for hydraulic structures, affecting the safety of hydraulic structures. Therefore, the purchase of insulation board, we must ensure that the technical specifications of polystyrene rigid foam board. The technical indicators should meet the following criteria: