高寒环境下橡胶粉掺入对水泥砂浆的抗冻性能影响  

The Effect of Rubber Powder Addition on the Anti-Freeze Performance of Cement Mortar in High Cold Environment

作　　者：张静[1] 张新宇 李婷婷[1,2] 朱楠 ZHANG Jing;ZHANG Xinyu;LI Tingting;ZHU Nan(College of Transportation Science and Engineering,Civil Aviation University of China,Tianjin 300300,China;Aircraft Owners and Pilots Association of China,Beijing 100020,China;China CommunicationsTianjin Port Engineering Research Institute,Tianjin 300202,China)

机构地区：[1]中国民航大学交通科学与工程学院,天津300300 [2]中国航空器拥有者及驾驶员协会,北京100020 [3]中交天津港湾工程研究院有限公司,天津300202

出　　处：《空军工程大学学报》2025年第1期111-118,共8页Journal of Air Force Engineering University

基　　金：中央高校基本科研业务费中国民航大学专项(3122018C019);天津市教委科研计划项目(2023KJ236)。

摘　　要：研究掺入橡胶粉的水泥砂浆作为高寒地区破损道面修复材料时,其抗冻性能否适配我国高寒地区机场对破损道面修补材料的要求。通过冻融循环试验研究橡胶粉水泥砂浆中橡胶粉目数和掺量对抗冻性能以及力学性能的影响,采用两因素方差分析和极差分析确定其影响效果,通过SEM和XRD从微观角度揭示橡胶粉在水泥砂浆水化过程中对其微观结构及产物的影响。结果表明,橡胶粉水泥砂浆中目数和掺量均对抗冻性能及抗压强度有显著性影响,两者之间的交互影响不显著;确定当橡胶粉目数为30目,掺量为50%时其抗冻性能最优;SEM形貌像显示橡胶粉掺入可阻断微裂缝发展,XRD结果显示30目橡胶粉更能保证橡胶粉水泥砂浆的水化反应高效进行。Cement mortar mixed with rubber powder being used as repair material for damaged pavement,its performance of cold-resistance should be able to meet the requirements of airports in high cold area.The effects of mesh number and content of rubber powder in cement mortar on frost resistance and mechanical properties are studied through freeze-thaw cycle tests.The effects are determined by adopting two-factor analysis of variance and range analysis.The effects of rubber powder on the microstructure and products during hydration of cement mortar are revealed by SEM and XRD.The results show that the mesh number and content of rubber powder cement mortar have significant effects on the frost resistance and compressive strength,but the interaction between them is not significant.When the mesh number of rubber powder is 30 mesh and the dosage is 50%,the antifreeze performance is the best.SEM images show that the addition of rubber powder can block the development for micro-cracks,and the XRD results show that 30-mesh rubber powder can enable the hydration reaction between rubber powder and cement mortar to continue efficiently.

关 键 词：高寒环境 橡胶粉水泥砂浆 抗冻性能 力学特性 微观结构 

分 类 号：TQ172[化学工程—水泥工业]