concrete reinforcement bars marked with a W can be considered as dual grade. Changes to ASTM A615-20 specification reduced the tensile strength requirements for A615 Grades 60 and 80 to 80,000 psi ...

Where the spacing is less than this, the bars should be tied at every intersection or at alternate intersections. Ties maintain the position of the reinforcement during the pouring and setting of ...

RAMANATHAPURAM: A portion from the concrete pillar of the Pamban road bridge had fallen off exposing the steel reinforcement ...