Mechanical Properties and Impermeability of High Performance Cementitious Composite Prepared with Polyethylene Fibers
In view of the delicate demands of materials for engineered cementitious composites (ECC),this paper presents a simple new brand of high performance cementitious composite (HPCC) prepared with polyethylene (PE) fibers (HPCC-PE).PE and steel fibers were employed to prepare fiber reinforced cementitious composite (FRCC) respectively in order to perform comparative analysis.The experimental results show that the addition of fibers causes improvement in flexural deformation capacity as well as impermeability.A high flexural deflection capacity,which is almost 160 times of that of conventional concrete,was achieved for HPCC-PE accompanied by multiple cracking on the bottom of the pure bending region.SEM observation reveals that the fibers in HPCC-PE can still carry loads and slip inside the fiber tunnel in spite of the abrasion damage on the periphery caused by the matrix.
highway engineering high performance cementitious composite polyethylene fibers steel fibers flexural deflection capacity
Shuanfa Chen Rui He Yongpeng Li Shaohua Ji
Engineering Research Center of Ministry of Education for Transportation Materials,Changan Universit School of Highway,Changan University,Xian,710064,China
国际会议
西安
英文
1-4
2012-10-01（万方平台首次上网日期，不代表论文的发表时间）