Title: Field Tests of Concrete
Author(s): John G. Ahlers and Stanton Walker
Publication: Journal Proceedings
Appears on pages(s): 358-397
Since the organization of the American Concrete Institute, twenty years ago, the uses of concrete have developed to such an extent that from being considered merely as a substitute for stone masonry in the construction of massive work, it has become one of our most important strucutural materials. The annual production of 22,300,000 bbl. of cement in the United States in 1903, and 137,000,000 bbl. in 1923 gives some idea of the enormous increase in the volume of concrete manufactured.