重庆大学学报2026，Vol.49Issue(1)：106-114,9.DOI:10.11835/j.issn.1000-582X.2024.056
碳酸钙晶须对风积沙混凝土力学性能影响研究
Experimental study on the effect of calcium carbonate whiskers on the mechanical properties of aeolian sand concrete
摘要
Abstract
To improve the utilization efficiency of aeolian sand,this study investigates the influence of varying calcium carbonate whisker volume fractions on the compressive and splitting tensile strengths of aeolian sand concrete.Scanning electron microscopy(SEM)and nuclear magnetic resonance(NMR)were employed to examine the interfacial bonding between whiskers and cement paste and to elucidate the strengthening mechanism.Based on the experimental results,a theoretical model of relationships among compressive strength,splitting tensile strength and curing age was established.The findings show that the incorporation of an appropriate amount of calcium carbonate whiskers significantly improves pore structure and mechanical performance.When the aeolian sand content is 60%,the optimal whisker volume fractions for compressive strength and splitting tensile strength are 0.15% and 0.20%,respectively.The proposed predictive model aligns well with the experimental data and effectively predicts strength development with age.关键词
碳酸钙晶须/风积沙混凝土/抗压强度/劈裂抗拉强度/扫描电镜/核磁共振/预测模型Key words
calcium carbonate whiskers/aeolian sand concrete/compressive strength/splitting tensile strength/SEM/NMR/predictive mode分类
建筑与水利引用本文复制引用
张卓森,李昊,于淑玉,郭皓隆,孙常伟,周一..碳酸钙晶须对风积沙混凝土力学性能影响研究[J].重庆大学学报,2026,49(1):106-114,9.基金项目
内蒙古农业大学博士启动费资助项目(RZ190000201) （RZ190000201）
内蒙古自然科学基金资助项目(2021MS05045).Supported by theInner Mongolia Agricultural University PhD start-up fee(RZ190000201),and the Inner Mongolia Natural Science Foundation(2021MS05045). （2021MS05045）
