Study on 3D spatial distribution of steel fibers in fiber reinforced cementitious composites through micro-CT technique

2013 ◽  
Vol 48 ◽  
pp. 656-661 ◽  
Author(s):  
Jiaping Liu ◽  
Changfeng Li ◽  
Jianzhong Liu ◽  
Gong Cui ◽  
Zhiqian Yang
Keyword(s):  
Spatial Distribution ◽  
Steel Fibers ◽  
Cementitious Composites ◽  
Micro Ct ◽  
Fiber Reinforced ◽  
Ct Technique ◽  
Fiber Reinforced Cementitious Composites

Study on the Mechanical Properties of High Performance Hybrid Fiber Reinforced Cementitious Composite (HFRCC) under Impact Loading

2014 ◽  
Vol 629-630 ◽  
pp. 79-84 ◽  
Author(s):  
Hui Xian Yang ◽  
Jing Li ◽  
Yan Sheng Huang
Keyword(s):  
Impact Loading ◽  
Material Properties ◽  
High Performance ◽  
Steel Fibers ◽  
Cementitious Composites ◽  
Peak Strain ◽  
Fiber Reinforced ◽  
Hybrid Fiber ◽  
Dynamic Material Properties ◽  
Fiber Reinforced Cementitious Composites

The dynamic material properties of high performance hybrid fiber reinforced cementitious composites (HFRCC) with various volumetric fractions of steel and polyvinyl alcohol (PVA) fibers were studied by the Split Hopkinson Press Bar (SHPB) test. The results show that HFRCC with higher volumetric fraction of steel fibers are more sensitive to stain rate and the dynamic compressive strength increase more prominently with the strain rate increasing, but peak strain shows the opposite trend. The PVA fibers increase the ductility of HFRCC more effectively than steel fibers. Compared to PVA fiber reinforced cementitious composites (FRCC), HFRCC present better dynamic material properties under impact loading.

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