The Dadar Parsi Colony residents have raised concerns about the ongoing roadwork in their area, where paver blocks are being used in some places, insisting that the civic body should use M-40 grade co ...
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 ...