Concrete Construction for Rural Communities (Classic Reprint)

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Excerpt from Concrete Construction for Rural Communities During the Middle Ages the use of concrete was continued to some extent, but no great advance was made. In the eighteenth century it was discovered that the clay contained in certain limes conferred on them the property of setting, or hardening, under water, and the process of making natural cement was developed. In the last century the use of concrete was greatly stimulated by the invention of Portland cement, by the discovery of de posits of rock suitable for making natural cement, and by the development of machinery which made it possible to produce these cements cheaply. 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.