四川水力发电2025，Vol.44Issue(5)：1-6,20,7.DOI:10.20196/j.cnki.scslfd.20250501
不同外加剂对抗冲磨混凝土性能的影响研究
Study on the impact of different admixtures on the performance of abrasion-resistant concrete
唐茂刚 1张建峰 2刘东生1
作者信息
- 1. 华电金沙江上游水电开发有限公司叶巴滩分公司,四川 成都 610041
- 2. 长江水利委员会长江科学院,湖北 武汉 430010
- 折叠
摘要
Abstract
Based on the Yebatan Hydropower Station project,the study investigated the effects of incorporating fly ash,silica fume,PVA fibers,HF abrasion-resistant agent,and CK abrasion-resistant agent on the per-formance of abrasion-resistant concrete.The results indicate that adding 15%fly ash and 5%silica fume en-hances compressive strength and elastic modulus through pozzolanic effects and micro-aggregate filling,but slightly increases drying shrinkage and autogenous shrinkage.The introduction of PVA fibers significantly im-proves splitting tensile strength and ultimate tensile values,and the fibers can mitigate the shrinkage side effects of silica fume.The CK abrasion-resistant agent exhibits the best overall performance,with simultane-ous improvements in compressive strength,abrasion resistance,and elastic modulus,and significantly reduces drying shrinkage and autogenous shrinkage.The HF abrasion-resistant agent shows significant early strength improvement,but its long-term effects are weaker.Additionally,silica fume and PVA fibers slightly increase adiabatic temperature rise,while the CK abrasion-resistant agent optimizes both temperature control and vol-ume stability.关键词
抗冲磨混凝土性能/硅粉/PVA纤维/HF抗冲磨剂/CK抗冲磨剂Key words
performance of abrasion-resistant concrete/silica fume/PVA fibers,HF abrasion-resistant agent/CK abrasion-resistant agent分类
水利科学引用本文复制引用
唐茂刚,张建峰,刘东生..不同外加剂对抗冲磨混凝土性能的影响研究[J].四川水力发电,2025,44(5):1-6,20,7.
