铁道科学与工程学报2016，Vol.13Issue(7)：1275-1281,7.
活性粉末混凝土力学特性及疲劳寿命研究
Study on mechanical properties and fatigue life of reactive powder concrete
摘要
Abstract
According to the dense proportion principle of RPC,three series of concrete specimens were prepared with Fujian local materials.The influence law of different fiber types on basic mechanical properties of RPC was studied.The bending fatigue tests were performed using the Instron electro-hydraulic servo fatigue testing machine to get the development and distribution law of fatigue life of fiber reinforced RPC.Results show the in-corporation of polypropylene fiber for RPC has a certain degree of improvement on compressive strength,splitting strength,bending strength and ductility,but the promoting effect is not so obvious.Steel fiber content has obvi-ous enhancement on RPC strength.Compressive strength with the steel fiber content is the parabola growth law, splitting tensile strength and bending strength with the content are linear growth and exponential growth trend re-spectively.The average fatigue life with the polypropylene fiber is the parabola law,with the steel fiber content is significantly increasing trend.The regression relations of mechanical indexes with two kinds of fiber content are given.Statistical analysis on fatigue test data of each serials of specimen indicates that bending fatigue life of RPC is in linear correlation with the corresponding probability significantly,and obeys the two-parameter weibull distribution.The survival-fatigue life curve was also given.关键词
活性粉末混凝土/纤维增强/基本力学性能/弯曲疲劳寿命/威布尔分布Key words
reactive powder concrete/fiber reinforced/basic mechanical properties/bending fatigue life/weibull distribution分类
建筑与水利引用本文复制引用
姚志雄..活性粉末混凝土力学特性及疲劳寿命研究[J].铁道科学与工程学报,2016,13(7):1275-1281,7.基金项目
国家自然科学基金资助项目（51504070，51508098）；福建省自然科学基金资助项目（2016J01205）；校科研启动基金资助项目 （）
