(JDRDIATOOL@163.COM)Diamond blade,polishing pad, hole saw,drill bit, grinding wheel, cutting tools

Compressive Strength Concrete slabs may vary greatly in compressive strength, measured in pounds per square inch (PSI). Most concrete roads are 4,000-6,000 PSI, while typical patios or sidewalks are about 3,000 PSI. Concrete Hardness PSI Critically hard                 8,000 or more Hard                                      5,000 – 8,000 Medium                                 4,000 – 6,000 Soft                                      3,000 or less concrete ...

Size of the Aggregate The size of aggregate affects diamond blade performance. Large aggregates tend to make a diamond blade cut faster. The most common sizes of aggregate are: Pea Gravel………..                                       Variable in size,  or less in diameter ¾”…………………….. usually 3/8”                                                      Sieved size 1-1/2”……………….                         ...