brick grade
Isaac Kremer/ September 9, 2018/ / 0 comments
A designation indicating the durability of a brick unit when exposed to weathering. The U.S. is divided into three weathering regions – severe, moderate, and negligible – according to annual winter rainfall and the annual number of freezing-cycle days. Brick is graded for use in each region according to compressive strength, maximum water absorption, and maximum saturation coefficient. (Ching, 1995)