Mechanical Behavior of Slender Composite Columns under Axial Compression Load

In the present experimental investigation, polyvinyl chloride (PVC) plastic pour-in form (PPF) was used in three low-cost composite systems for concrete construction. It included concrete-filled tubular plastic forms (CPPF), steel-reinforced concrete-filled tubular plastic (CPPF-SC and CPPF-Re), and welded wire fabric reinforced concrete-filled tubular plastic (CPPF-WM). The core was laboratory mixed concrete with an average 28-day compressive...