Lanterna Rally

Author: Cecil H. Desch

Publisher:

Published: 2015-06-30

Total Pages: 294

ISBN-13: 9781330517888

Excerpt from The Chemistry and Testing of Cement From the earliest historical times, materials belonging to the class of calcareous cements have been used in the construction of buildings, the methods of preparing and applying them being the result of the experience of generations of builders, and undergoing little change in the course of centuries. The modem development of engineering practice, dating from the second half of the eighteenth century, gave a new importance to these materials, and brought about the invention of many new types of cement, some of which have in great measure superseded the older kinds. A large and important industry has thus come into existence, and has gradually spread from a few local centres until it has become established in most parts of the civilised world. As the demand for cements on the part of the engineer and the builder has increased, so their requirements in respect of quality have become more exacting, and the manufacturer has not only been called on to increase his production, but also to improve the strength and stability of his product. This has been accomplished with a remarkable degree of success, partly as the result of improvements in mechanical processes and appliances, but also in no small degree through the co-operation of the chemist. This second factor assumes an increasing importance as the standard of quality is raised, and as efforts are made to extend the range of the raw materials employed in the industry. 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.