Experimental Research on Mechanical Properties of PVCpipe Concrete

Abstract:

Effects of PVCpipe thickness and coreconcrete strength on mechanical properties of the PVCpipe concrete (PPC)including compressive strength,stressstrain (σ-ε) curve and strain energy were investigated.The results prove that PPC overcomes the shortcomings of the normal concrete such as high brittleness and bad ductility,and its strain energy can be enhanced by about 9.3～25.0 times.Compressive strength of PPC increases with the increase in the coreconcrete strength and pipe thickness,but its strengthened coefficient S decreases with the increase in the coreconcrete strength.The slope of the σ-ε curve is mainly determined by PVCpipe thickness,and the coreconcrete strength merely affects the ultimate strength of PPC.

Key words:PVCpipe concrete; mechanical property; compressive strength; stressstrain curve; strain energy