摘要
从纳米材料的特性出发,研究了掺入纳米CaCO3(NC)和纳米SiO2(NS)对超高性能混凝土(UHPC)性能的影响。结果表明,纳米材料的掺入不仅提高了UHPC的强度特别是其抗折强度,还改善了UHPC的韧性。同时应用SEM技术对UHPC的微观结构进行了分析,探讨了纳米材料对UHPC的增强增韧机理。
The impact of nano-materials such as nano-CaCO3 or nano-SiO2 on the performance of ultra-high per formance concrete were studied. The results indicated that nano-materials can not only improve the strength of UHPC obviously （especially its flexural strength）, but also improve the toughness of UHPC. Besides, through analyzing the microstructure of UHPC by scanning electronic microscope technology, the strengthening and toughening mechanisms of nano-material towards UHPC were also discussed.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2012年第18期136-141,共6页
Materials Reports
基金
国家自然科学基金(51178711)
