Interlocking Concrete Pavers Division 2 Section 02780
Division 2 Section 02780 Page 5 of 7 Interlocking Concrete Pavers C The joint sand shall conform to the grading requirements of ASTM C 144 shown in Table 2 below Table 2 Grading for Joint Sand – ASTM C 144 Sieve Size Natural Sand Percent Passing Manufactured Sand Percent Passing No 4 4 75 mm 100 100 No 8 2 36 mm 95 to 100 95 to 100