Diamond blade performance -concrete cutting E
Type of sand Sand is part of the aggregate mix and determines the abrasiveness of concrete. “Small aggregate” is usually sand. Sand can either be sharp (abrasive) or round (non-abrasive). To determine the sharpness of sand, you need to know where the sand is from. Crushed sand and bank sand are usually sharp; river sand is usually round. Green concrete is more abrasive than cured concrete because when concrete is not fully cored, sand can easily be scraped off the surface being cut. More loose sand means more abrasiveness. Steel Rebar Reinforcing Heavy steel reinforcing tends to make a blade cut slower. Less reinforcing tends to make a blade cut faster. Light to heavy rebar is a very subjective term. Light Medium:Wire mesh, single mat #4 rebar, every 12” on center each way (OCEW), single mat Heavy:Wire mesh, multi-mat #5 rebar, 12” OCEW, single mat #4 rebar, 12” OCEW, double mat Heavy rebar can also result from different grades of steel. Typical rebar is grade 40 steel. Grade 6