Abstract
Abstract Helix concrete consists of twisted steel wires of star shape and size approximately 1 mm2 areas with 25 mm, 35 mm, 50 mm, 65 mm & 80 mm long added to cement concrete. Replacing the rebar to some extent is to achieve higher crack resistance and structural strength throughout the concrete mass in all directions. In the present research, the analytical studies have been carried-out using MSC Nastran. The analytical studies have been carried-out on star cross sections of helix. It was observed that the shape and number of twists of steel wires maximizes the bond between the steel and cement based concrete matrix. Helix steel wire, with its twisted profile is a more superior reinforcement and is a substantial improvement over fibers of any time. When concrete is stressed or bent the fibers which are straight will slide out smoothly with minimal possible friction, so the force required to pullout is generally small. Adding deformation like a hooked end or corrugations adds friction and increases pullout force substantially.
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