A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The Impact of Fiber Geometry on the Mechanical Characteristics of SIFCON Slabs Under Static and Dynamic Loading
Slurry-infiltrated fiber concrete (SIFCON) exhibits exceptional performance in terms of energy absorption, ductility, and crack resistance in slab applications. However, the contribution of each fiber geometry to the mechanical characteristics has not yet been explored. Accordingly, in this study, three types of steel fibers (i.e., micro, hook, and hybrid) with constant (6%) fiber content were cast into 18 square slabs of 20, 40, and 60 mm thickness, respectively, and subjected to static and dynamic loading. Furthermore, six slabs of 60-mm thickness were cast with normal strength concrete (NSC) while conventional rebar reinforcement was used for comparison. The results indicate significant enhancements in the dynamic and static mechanical characteristics of SIFCON slabs compared to NSC. Specifically, the carrying capacity of the SIFCON slabs increased by 55, 44.4, and 38.2% for the hybrid, hooked, and microfibers, respectively. The number of blows to failure also improved by 56.2, 46.6, and 46%, ductility improved by 51, 20, and 51%, and energy absorption increased by 2.28, 1.85, and 1.87 times for the hybrid, hooked, and microfibers, respectively, compared to the NSC slabs. These results imply great differences between the SIFCON slabs depending on the type of steel fiber that is used. However, the hybrid fiber showed the greatest improvement among the fiber types due to the interaction between various geometries of the fibers. These outcomes could aid in identifying the most suitable fiber in SIFCON based on the structural member and the subjected stresses.
The Impact of Fiber Geometry on the Mechanical Characteristics of SIFCON Slabs Under Static and Dynamic Loading
Slurry-infiltrated fiber concrete (SIFCON) exhibits exceptional performance in terms of energy absorption, ductility, and crack resistance in slab applications. However, the contribution of each fiber geometry to the mechanical characteristics has not yet been explored. Accordingly, in this study, three types of steel fibers (i.e., micro, hook, and hybrid) with constant (6%) fiber content were cast into 18 square slabs of 20, 40, and 60 mm thickness, respectively, and subjected to static and dynamic loading. Furthermore, six slabs of 60-mm thickness were cast with normal strength concrete (NSC) while conventional rebar reinforcement was used for comparison. The results indicate significant enhancements in the dynamic and static mechanical characteristics of SIFCON slabs compared to NSC. Specifically, the carrying capacity of the SIFCON slabs increased by 55, 44.4, and 38.2% for the hybrid, hooked, and microfibers, respectively. The number of blows to failure also improved by 56.2, 46.6, and 46%, ductility improved by 51, 20, and 51%, and energy absorption increased by 2.28, 1.85, and 1.87 times for the hybrid, hooked, and microfibers, respectively, compared to the NSC slabs. These results imply great differences between the SIFCON slabs depending on the type of steel fiber that is used. However, the hybrid fiber showed the greatest improvement among the fiber types due to the interaction between various geometries of the fibers. These outcomes could aid in identifying the most suitable fiber in SIFCON based on the structural member and the subjected stresses.
The Impact of Fiber Geometry on the Mechanical Characteristics of SIFCON Slabs Under Static and Dynamic Loading
Iran J Sci Technol Trans Civ Eng
Kadhum, Mohammed Mansour (author) / Al-Dhufairi, Watheq Gharbi Bakheet (author) / Yas, Mohammed H. (author)
2023-12-01
18 pages
Article (Journal)
Electronic Resource
English
Response of reinforced SIFCON-slabs under blast-loading
| British Library Conference Proceedings | 1994
On low-velocity impact response of SIFCON slabs under drop hammer impact loading
| British Library Online Contents | 2018
On low-velocity impact response of SIFCON slabs under drop hammer impact loading
| British Library Online Contents | 2018
SIFCON (Slurry Infiltrated Fiber Concrete) Under Dynamic Loading
| British Library Conference Proceedings | 2000