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A platform for research: civil engineering, architecture and urbanism
Impact performance of ferrocement slabs systems
Performance of ferrocement slabs subjected to low velocity projectile impact was studied using an instrumented drop weight test facility. All slabs were square of size 1000 mm and thickness 30 mm. The slabs were simply supported over a span of 900 mm on all four edges. The slabs were subject to impact at the center by a 43 kg mass of projectile dropped from a height of 4 m. The transient impact load exerted by the projectile and the acceleration experienced by the slab were recorded using high-speed data acquisition system. The impact load, displacement and energy absorption characteristics were examined along with the cracking and failure pattern of slabs. The variables of the study include number of layers of weld wire mesh, volume fraction of polyvinyl alcohol fibers and the type of reinforcement. Test results indicate that increasing the number of layers of wire mesh led to larger area of load transfer and hence more crack formation. The slabs with fibers sustained less damage at the impact point and the failure was localized compared to slabs without fibers. The slab with I% polyvinyl alcohol fibers showed better energy absorption characteristics than the other slabs.
Impact performance of ferrocement slabs systems
Performance of ferrocement slabs subjected to low velocity projectile impact was studied using an instrumented drop weight test facility. All slabs were square of size 1000 mm and thickness 30 mm. The slabs were simply supported over a span of 900 mm on all four edges. The slabs were subject to impact at the center by a 43 kg mass of projectile dropped from a height of 4 m. The transient impact load exerted by the projectile and the acceleration experienced by the slab were recorded using high-speed data acquisition system. The impact load, displacement and energy absorption characteristics were examined along with the cracking and failure pattern of slabs. The variables of the study include number of layers of weld wire mesh, volume fraction of polyvinyl alcohol fibers and the type of reinforcement. Test results indicate that increasing the number of layers of wire mesh led to larger area of load transfer and hence more crack formation. The slabs with fibers sustained less damage at the impact point and the failure was localized compared to slabs without fibers. The slab with I% polyvinyl alcohol fibers showed better energy absorption characteristics than the other slabs.
Impact performance of ferrocement slabs systems
Khan, M. (author) / Ong, K.C.G. (author) / Paramasivam, P. (author)
2001
12 Seiten, 13 Bilder, 1 Tabelle, 16 Quellen
Conference paper
English
IMPACT PERFORMANCE OF FERROCEMENT SLABS SYSTEMS
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