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高性能混凝土抗冻融性能试验研究 被引量:8

Experimental study on behavior of plain high-performance concrete after freeze-thaw cycles
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摘要 对0-400次冻融循环后高性能混凝土进行了抗冻融性能试验,测得了其冻融前后试件的质量与相对动弹模。试验结果表明:伴随着冻融循环次数的增加,400次冻融循环后试件质量有一定的损失但不显著;而相对动弹模有一定的降低,但幅度不大,125-150次冻融循环是其相对动弹模显著降低分界点。并建立了高性能混凝土相对动弹模与冻融循环次数变化之间的公式。 The tests were performed about behavior of plain high-performance concrete (HPC) after 0-400 freeze-thaw cycles.The mass loss and relative dynamic modulus were measured.The experimental results show that the mass loss for HPC after 400 freeze-thaw cycles doesn't decreases evidently with the increase of freeze-thaw cycles,and its relative dynamic modulus decreases lightly,moreover it is distinct around 125-150 freeze-thaw cycles.The formula of relative dynamic modulus for plain HPC with freeze-thaw cycles parameters is proposed.
作者 凌立 陈勇
出处 《混凝土》 CAS CSCD 北大核心 2009年第4期49-50,53,共3页 Concrete
基金 辽宁省教育厅高等学校科学研究项目<恶劣环境因素下混凝土破坏准则和耐久性研究>(2023901023)
关键词 高性能混凝土 冻融循环 质量损失 相对动弹模 high-performance concrete (HPC) fi'eeze-thawcycles mass loss relative dynamic modulus
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