Test Method Title
Standard Practice for Making and Curing Concrete Test Specimens in the Field
Reference Number
ASTM C31
Material
Field Concrete
Test Property
Making and curing concrete test specimens
Description of Test
Concrete is sampled in accordance with ASTM C172. Concrete is placed into curing molds in three equal lifts, each lift is rodded 25 times. Each mold is covered to protect against moisture loss, and carefully placed in a protected area.
Number of Test Specimens
1 but typically several specimens per set of cylinders
Test Specimen Size
Typically 4" x 8" or 6" x 12" cylinders
Keywords
compressive strength, concrete, cylinders