STUDY ON THE MECHANICAL PERFORMANCE OF PRESSURE WELDED JOINTS OF STEEL BARS USING PROPANE GAS

Abstract

Gas pressure welding using acetylene gas is a widely used method for rebar jointing in modern construction. However, the increasing production and transportation costs of acetylene gas have made its use less favorable, particularly in remote areas. To address these challenges, a novel gas pressure welding method has been developed, utilizing the readily available and cost-effective propane gas, commonly used in households. This study conducted tensile and bending tests to elucidate the mechanical properties of the welded steel bar joints using propane gas. The results demonstrated the new method meets the performance regulations for gas pressure welding Class A joints.