Effect of different fibers on mechanical properties and ductility of alkali-activated slag cementitious material
The effect of different fibers on mechanical properties and ductility of alkaliactivated slag cementitious material(AASCM)is studied.The research contents include: fiber type(plant fiber,polypropylene fiber),fiber content,mechanical property index,tensile stressstrain relationship curve,treating time.The test results showed that the compressive strength of two fibers reinforced AASCM was about 90~110MPa,and the tensile strength was about 3~5MPa.The reinforcement effect of polypropylene fiber is superior to that of plant fiber,and the mechanical properties of polypropylene fiber reinforced AASCM are superior to those of plant fiber,According to the comparison of SEM pictures,the plant fiber and polypropylene fiber are both closely bound with the matrix,and the transition zones are complete and close.Thus,it is proved that plant fiber and polypropylene fiber delay the crack extension and enhance the ductility of AASCM.
J Zhu W Z Zheng C Z Qin Z Z Xu Y Q Wu
College of Civil Engineering and Architecture,Harbin University of Science and Technology,Harbin 150 Key Lab of Structures Dynamic Behavior and Control of the Ministry Education,Harbin Institute of Tec
国际会议
三亚
英文
1-7
2017-11-18（万方平台首次上网日期，不代表论文的发表时间）