EXPERIMENTAL INVESTIGATION ON PVC ENCASED COLUMNS

Abstract

In the present study, poly vinyl chloride (PVC) tubes filled with concrete are axially loaded until failure of the specimen to investigate their load carrying capacity. Total eighteen specimens of PVC tubes of diameter 150 mm with effective lengths of 500 mm, 600 mm, and 700mm were cast. M 20 grade of concrete of two different mixes having two different sizes of aggregate 6.3mm and 10mm was filled inside the tubes for casting of PVC concrete filled tube (CFT) column specimens. The column specimens were tested for axial loading in the UTM machine of capacity 100 tons. Their load-displacement curves and stress-strain curves were recorded. Theoretical and experimental results were compared and tabulated and it was found to be 1.36% & 35.55 % for 6.3 mm size and 11.28% & 27.46% for 10 mm size of aggregates as conservative side as increased with compressive strength of PVC Concrete Filled Tube Columns experimentally and catalogue results when compared with theoretical results.