This chapter covers in general the importance of properly making and curing concrete specimens. In this discussion, the word "making" means paying attention to

THIS CHAPTER COVERS THE IMPORTANCE OF PROperty making and curing concrete test specimens in both the field and the laboratory. This subject was covered in ASTM

In the United States the "standard" specimens for strength are the 6 by 12-in. cylinder and the 6 by 6-in. cross-section beams. In many countries cubes are used