聚氨酯保温、保湿材料在高寒地区坝工混凝土工程中的应用 |
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引用本文: | 张东刚,吴艳书,汪晓云.聚氨酯保温、保湿材料在高寒地区坝工混凝土工程中的应用[J].电网与水力发电进展,2009,25(6):68-70. |
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作者姓名: | 张东刚 吴艳书 汪晓云 |
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作者单位: | 中国水电十一局有限公司,河南 三门峡 472000;中国水电十一局有限公司,河南 三门峡 472000;中国水电十一局有限公司,河南 三门峡 472000 |
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摘 要: | 为了保证高寒地区坝工混凝土建筑物的质量与安全,防止混凝土产生温度裂缝及混凝土干缩裂缝,通常在混凝土表面覆盖必要的保温保湿材料进行防护。新疆冲乎尔水利枢纽采用在大坝及泄流底孔混凝土表面喷涂聚氨酯材料起到了良好的防护效果。
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关 键 词: | 聚氨酯 保温 高寒地区 混凝土施工 |
Application of Polyurethane as Heat and Moisture Preservation Material to Construction of Concrete Dam in Cold Regions |
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Authors: | ZHANG Dong-gang WU Yan-shu and WANG Xiao-yun |
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Affiliation: | No.11 Co.Ltd of Sino-Hydro Engineering Bureau, Sanmenxia 472000, Henan Province, China;No.11 Co.Ltd of Sino-Hydro Engineering Bureau, Sanmenxia 472000, Henan Province, China;No.11 Co.Ltd of Sino-Hydro Engineering Bureau, Sanmenxia 472000, Henan Province, China |
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Abstract: | In order to ensure the quality and safety of concrete dam structures in cold region, and prevent the concrete e crack caused by temperature drop and desiccation fissure, the heat and moisture preservation materials were usually covered on the surface of concrete. The measure of spraying polyurethane materials was adopted at the concrete surface of bottom flood discharge tunnel in Chonghu'er hydraulic key project in Xinjiang Municipality, which obtained excellent effect. |
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Keywords: | polyurethane materials insulated materials alpine region concrete construction |
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