Excerpt from Portland Cement Mortars and Their Constituent Materials: Results of Tests Made at the Structural-Materials Testing Laboratories Forest Park, St. Louis, Mo., 1905-1907 Introduction General statement Nature and extent of the investigations Scope of the work Register numbers Outline of tests Tests of strength Storage Tension Compression Transverse Results of tests Tests of cement Individual brands and typical Portland cement Acknowledgment of donations Method of tests Selection of samples Mixing of typical Portland cement Chemical analyses Physical determinations Method Specific gravity Time of setting Fineness Constancy of volume Tensile strength Effect of age on tensile strength Compressive strength Effect of age on compressive strength Percentage of gain in strength Strength tests of typical Portland cement used in tests mortars of sand, of gravel screenings, and of stone Method of tests Tensile strength Compressive strength Transverse strength Lapse of time between first and last molding Sands and sand mortars Acknowledgment of donations Method of collection Descriptions of sands. 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.