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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Experimental Study on Mechanical Properties of Concrete Confined with Plastic Pipe
Author(s): Junyan Wang and Quanbing Yang
Publication: Materials Journal
Appears on pages(s): 132-137
Keywords: ductility; high-density polyethylene pipe; strength; stressstrain curve.
Abstract:Plastic pipe-confined concrete (PPC) is a composite system obtained by filling a plastic pipe with concrete. PPC focuses on piers exposed to the tidal zone or the air-earth zone in marine and saline environments and protects them from salt damages by isolating and eliminating the exposed zones of the concrete structure from the aggressive substances. High-density polyethylene (HDPE) pipes were chosen to make PPC. Ultimate strength, the stress-strain curve, ductility of PPC and the effects of plastic-pipe thickness, and the compressive strength of core concrete fcu on them were investigated in this paper. Results indicate: 1) the ductility ratio of PPC is 1.17 to 4.27 times that of common concrete (CC), and the energy absorption E of PPC is 10.7 to 26 times that of CC; 2) the pipe thickness and fcu have significant effects on onset behavior and post-peak behavior of the stressstrain curves and the ultimate strength of PPC; and 3) the ductility ratio of PPC greatly increases with the increase of pipe thickness and decreases with the increase of fcu.
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