The research focused on the effects
of low velocity impact loading on high strength
concrete confined by a
prefabricated
polypropylene jacket and comparing the results with similar
specimens confined by carbon
fiber. In order to accomplish this, both
static and dynamic load tests were performed. Concrete
cylinders were used for static
loading. Twelve concrete cylinders were prepared for static load testing: three
were plain concrete and used as control specimens, three were
wrapped with one
layer of unidirectional carbon fiber, and six were confined by the
polypropylene pipe. The thickness of the polypropylene wrap was machined to
different thicknesses; three 3
mm and three 6 mm. The cylinders were standard
152 mm x 305 mm. Cylinders were loaded to failure in uniaxial compression using
a Tinius-Olsen Universal Testing Machine. Impact testing was performed using
four 152 mm x 914 mm columns. The columns consisted of one control sample; one
carbon fiber wrapped, and two (one of each thickness) wrapped with
polypropylene. Impact testing was conducted using an Instron drop-tower testing
machine.
More abstracts about the FEASIBILITY STUDY OF THERMOPLASTIC WRAP FOR BRIDGE PROTECTION