Overview of tensile creep behavior of cementitious materials
To clarify the influencing factors and complex mechanisms of tensile creep in cementitious materi-als,a tensile creep behavior review was provided,covering aspects such as tensile creep testing methods,in-ternal component influences,external loading conditions,and tensile creep mechanisms.The difficulties of tensile creep testing and the pros and cons of new testing methods were summarized.The influence of the types and dosages of internal components on tensile creep was analyzed,including the matrix components that play a major role in hydration and strength,as well as the aggregates and fibers that affect micro interface slid-ing.Based on the research approach of temperature-humidity-hydration-slip coupling,the variation patterns and influencing mechanisms of tensile creep under different temperature-humidity conditions,loading ages,and stress levels were analyzed.By organizing the relevant creep mechanisms of tensile creep,a creep mecha-nism analysis model based on multi-field coupling and multi-scale sliding was proposed.
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