AASHTO T 23-18 PDF Download

AASHTO T 23-18 is a standard method of testing for making and curing concrete test specimens in the field. The standard provides procedures for creating cylindrical and beam specimens from fresh concrete samples that accurately represent the mixture used in a construction project. It specifies that the concrete should be sampled after all on-site adjustments have been made to the mixture, such as the addition of water and admixtures. However, it notes that this practice may not be suitable for concrete with no measurable slump or for specimens of different sizes or shapes.