Excerpt from Tests of Reinforced Concrete Beams, Vol. 14: Series of 1906 Stone. The stone for the Joint Committee tests was a good quality of limestone from Kankakee, Illinois, ordered screened through a 1-in. Screen and over a f-in. Screen. It contained from 4570 to 50% voids and weighed 85 lb. Per cu. Ft. Loose. The stone for the Experiment Station tests was also a Kankakee limestone somewhat softer than the other, screened as above, and contained 50% to 5470 voids. It was somewhat finer than the Joint Commit tee stone. In the determination of the voids in both stone and sand, the material was poured slowly into the water SO that the voids became filled with water and no air was caught. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.