This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced
This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant mark
Excerpt from Concrete Engineers' and Contractors' Pocketbook Capt. Sewell says concrete is only affected by fire to a depth of to '51, ih., except at exposed co