土木工程与管理学报2017，Vol.34Issue(2)：37-40,4.
纤维高性能混凝土力学及耐久性能
Mechanical Properties and Durability of Fiber Reinforced High Performance Concrete
摘要
Abstract
Based on environmental categories and levels of lining concrete of cross sea region of one tunnel engineering, comparative research on compression test and chloride resistanceproperty of polypropylene fiber reinforced high performance concrete ( FRHPC ) with different fiber length was performed, and then a scheme of high performance concrete with polypropylene fiber is proposed. Axial compression test, axial tensile test, penetration test and drying shrinkage test were carried out for the scheme. The results indicate that the compressive strength of FRHPC was slightly lower than that of the contrast group in early durations ( 3~7 d ) , however, in later durations ( 7~90 d ) compressive strength of FRHPC increasingly exceeded. The compressive strength increases with fiber content in 28 d. Besides, chloride ion diffusion coefficient increases with fiber content in both 28 d and 90 d when fiber contenet is below 1.5%. Chloride ion diffusion coefficient of FRHPC with fiber length of 6mm is greater than that of FRHPC with fiber length of 12mm.关键词
隧道工程/纤维混凝土/纤维长度/力学性能/耐久性Key words
tunnel engineering/fiber reinforced concrete/fiber length/mechanicl property/durability分类
建筑与水利引用本文复制引用
刘伟宝,陆采荣,梅国兴,王珩,戈雪良,杨虎..纤维高性能混凝土力学及耐久性能[J].土木工程与管理学报,2017,34(2):37-40,4.基金项目
国家自然科学基金(51509167 （）
51579155) （）
江苏省自然科学基金(BK20150076) （BK20150076）
