【摘 要】
：
对常温20℃及200~600℃高温后高性能混凝土进行单轴抗压强度力学性能试验,测其抗压强度,并建立了高温后高性能混凝土抗压强度随温度变化的公式。试验结果表明:伴随温度升高,
【机 构】
：
辽宁工程技术大学科技产业处,沈阳市东煤房屋开发公司,河北建筑工程学院土木工程系,
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对常温20℃及200~600℃高温后高性能混凝土进行单轴抗压强度力学性能试验,测其抗压强度,并建立了高温后高性能混凝土抗压强度随温度变化的公式。试验结果表明:伴随温度升高,高温200~300℃后高性能混凝土抗压强度有所升高,400℃左右是抗压强度明显变化的临界温度。
The uniaxial compressive strength mechanical properties of high performance concrete at normal temperature of 20 ℃ and 200 ~ 600 ℃ were tested and the compressive strength was measured. The formula of compressive strength of high performance concrete with temperature after high temperature was established. The experimental results show that with the increase of temperature, the compressive strength of high performance concrete increases with the increase of temperature from 200 ℃ to 300 ℃, and the critical temperature at which the compressive strength changes obviously at about 400 ℃.
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