This technical manual focuses on the strength of sewer pipes and methods for testing them in a laboratory setting. The authors, all experts in the field of civil engineering, provide an in-depth analysis of the factors that contribute to the strength and durability of pipes in underground contexts, with the aim of improving the public health and safety of urban environments. This book is an essential resource for engineers and policymakers involved in the planning and construction of sewer systems. 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 is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.