Excerpt from Report on the Compressive Strength, Specific Gravity, and Ratio of Absorption of the Building Stones in the United States<br/><br/>Each specimen of all the kinds was carefully prepared by an expert stone-cutter, and the bed-side marked. These were then placed upon a table near the hydrostatic-press, used in such a manner as to mix them completely, and so prevent any inadvertent choice being made when they were picked up. They were there examined, squared, measured, and calipered, and then tested on bed or edge, under steel, wood, lead, or leather, as the routine prescribed. When placed in the press each specimen was carefully centered to the axial line of pressure, and the power applied neither fast nor slow, but steadily. The records were not attempted to be made exact within 500 pounds  equal to 125 pounds per square inch on 2-inch beds and over. On smaller Specimens than 1-inch cubes 100 pounds was made the limit of error. The weight of the movable parts of the press, with its attendant fric tion and the pump-stroke  abou't 800 pounds in all  is to be subtracted from the records in the general tables, or 200 pounds per square inch. The subject Of friction is discussed under the head of Testing the press and gauges.
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Paperback. Condition: New. Print on Demand. This book delves into the fascinating world of building materials, specifically focusing on the compressive strength, specific gravity, and absorption of various types of stones. Written in 1875, the authorââ â¢s detailed observations and experiments offer a unique glimpse into the scientific understanding of stone as a building material during that era. The book meticulously examines the methods used to test the strength of stones, exploring the impact of different pressing surfaces like steel, wood, lead, and leather. Through a series of experiments, the author explores the relationship between the size of stone samples and their compressive strength, revealing valuable insights into the behavior of these materials under pressure. The bookââ â¢s findings, presented through tables and diagrams, contribute to a deeper understanding of stoneââ â¢s inherent characteristics and provide practical information for engineers and builders seeking to construct durable structures. The author's meticulous research and thorough examination of stone's properties offer a valuable historical perspective on the science of building materials and its development in the 19th century. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Seller Inventory # 9781332188987_0
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