Scholarlink

<p>The freeze–thaw damage in wastewater concrete cube specimen (WCCS) of different sizes (side lengths of 40&#xa0;mm, 100&#xa0;mm, 150&#xa0;mm, and 200&#xa0;mm) at different numbers of freeze–thaw cycles (FTCs) (0, 10, 20, 30, 40 and 50 cycles) was investigated. The attenuation laws of mass and relative dynamic modulus of elasticity (RDME) of concrete specimens were analyzed. Using RDME as the damage variable, a freeze–thaw damage model (FTDM) of wastewater concrete based on Weibull distribution was established. The specific function form of two-parameter Weibull distribution of wastewater concrete considering the influence of size change and FTCs is proposed. The damage degree of concrete specimens under these combined influences (FTCs and specimen size) is accurately described, with a relative error between experimental and calculated values being below 26%, providing a theoretical reference for understanding the damage evolution of wastewater concrete in cold areas. </p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Study on freeze–thaw damage model of wastewater concrete based on Weibull distribution

  • 期刊论文

  • 发表日期：

    2025年5月13日

查看全文
  • Xianhua Yao,
  • Linyan Han,
  • Junfeng Guan,
  • Yuanchun Li,
  • Jiangfeng Meng,
  • Linjian Shangguan,
  • Lielie Li

摘要

The freeze–thaw damage in wastewater concrete cube specimen (WCCS) of different sizes (side lengths of 40 mm, 100 mm, 150 mm, and 200 mm) at different numbers of freeze–thaw cycles (FTCs) (0, 10, 20, 30, 40 and 50 cycles) was investigated. The attenuation laws of mass and relative dynamic modulus of elasticity (RDME) of concrete specimens were analyzed. Using RDME as the damage variable, a freeze–thaw damage model (FTDM) of wastewater concrete based on Weibull distribution was established. The specific function form of two-parameter Weibull distribution of wastewater concrete considering the influence of size change and FTCs is proposed. The damage degree of concrete specimens under these combined influences (FTCs and specimen size) is accurately described, with a relative error between experimental and calculated values being below 26%, providing a theoretical reference for understanding the damage evolution of wastewater concrete in cold areas.