Benk713
Structural
- Sep 18, 2012
- 5
How many compressive test samples are required for epoxy grouts to form a "valid test"? ASTM C579 is the standard to use for testing epoxy grout, but all it says it to create 6 samples. It's not clear to me if that means a minimum of 6 samples must all be tested at the same age to form a valid test. For example, for concrete cylinders I know if they are using 4" x 8" cylinders, then they need a minimum of 3 cylinders tested at the same age and averaged to form one valid test. For cementitious grouts, ASTM C1107 says that three cubes shall be tested at each age specified (typically 1, 3, 7, and 28 days). So how many cubes of epoxy grout are required to be tested at the same age to form a valid test?