Author : E. J. De Smedt
Publisher : Forgotten Books
ISBN 13 : 9781333767150
Total Pages : 20 pages
Book Rating : 4.7/5 (671 download)
Book Synopsis The Use of Silica Gravel in Concrete (Classic Reprint) by : E. J. De Smedt
Download or read book The Use of Silica Gravel in Concrete (Classic Reprint) written by E. J. De Smedt and published by Forgotten Books. This book was released on 2016-09-27 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Use of Silica Gravel in Concrete The use of hydraulic concrete for all kinds oi_ construction, sea-walls, and pavements has become so general that the quality of the materials of which it is made is an item of great interest to engineers, contractors and tax-payers. Engineers in making specifications in most instances call for broken stone, to the ex elusion of other materials - gravel, etc., and I find that many persons who have not given the question proper consideration, entertain the theory that concrete made of broken stone alone is a superior mixture and should. Only be used. Whenever my Opinion has been asked as to the advisability of allowing gravel or pebbles to be substituted in whole or in part, I have invariably answered that if they were clean, hard and of proper size, they would make equally as good, if not better, con crete than broken stone. To procure good results in concrete it is essential that the sand, broken stone or gravel should be of a silicious composition, clean, hard, free of clay, organic matter or other impurities. As much care should be taken in the selection of sand and gravel as in that of cement. The theory that the irregular faces and sharp edges of broken stone contribute to the adhesion of the mortar with which they 'are mixed is incorrect, and this has been demonstrated by practical experience. It is a well-known fact that hydraulic cement shows greater adhesion to clean silica gravel than to broken limestone, and there fore produces better results in concrete. 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.