2. Using a scoop, place concrete in the cylinder molds. For 6 by 12 inch molds, place in three equal layers (1/3 volume per layer) and for 4 by 8 inch molds, place in two equal layers (1/2 volume ...

Field-cured test cylinders and maturity factors are often used for estimating in-place concrete strengths. However, testing field-cured cylinders is the default procedure specified by the building ...