1、 AWWA Standard SM Prestressed Concrete Pressure Pipe, Steel- Cylinder Type Effective date: Jan. 1, 2015. First edition approved by AWWA Board of Directors Nov. 21, 1949. This edition approved Jan. 19, 2014. Approved by American National Standards Institute Sept. 25, 2014. ANSI/AWWA C301-14 (Revision
2、 of ANSI/AWWA C301-07) Copyright 2014 American Water Works Association. All Rights Reserved. ii AWWA Standard This document is an American Water Works Association (AWWA) standard. It is not a specification. AWWA standards describe minimum requirements and do not contain all of the engineering and ad
3、ministrative information normally contained in specifications. The AWWA standards usually contain options that must be evaluated by the user of the standard. Until each optional feature is specified by the user, the product or service is not fully defined. AWWA pub- lication of a standard does not c
4、onstitute endorsement of any product or product type, nor does AWWA test, certify, or approve any product. The use of AWWA standards is entirely voluntary. This standard does not supersede or take precedence over or displace any applicable law, regulation, or code of any governmental authority. AWWA
5、 standards are intended to represent a consensus of the water supply industry that the product described will provide satisfactory service. When AWWA revises or withdraws this standard, an official notice of action will be placed in the Official Notice section of Journal - American Water Works Assoc
6、iation. The action becomes effective on the first day of the month fol- lowing the month of Journal - American Water Works Association publication of the official notice. American National Standard An American National Standard implies a consensus of those substantially concerned with its scope and
7、provisions. An American National Standard is intended as a guide to aid the manufacturer, the consumer, and the general public. The existence of an American National Standard does not in any respect preclude anyone, whether that person has ap - proved the standard or not, from manufacturing, marketi
8、ng, purchasing, or using products, processes, or procedures not conforming to the standard. American National Standards are subject to periodic review, and users are cautioned to obtain the latest editions. Producers of goods made in conformity with an American National Standard are encour - aged to
9、 state on their own responsibility in advertising and promotional materials or on tags or labels that the goods are produced in conformity with particular American National Standards. Caution n oti Ce : The American National Standards Institute (ANSI) approval date on the front cover of this standar
10、d indicates completion of the ANSI approval process. This American National Standard may be revised or withdrawn at any time. ANSI procedures require that action be taken to reaffirm, revise, or withdraw this standard no later than five years from the date of ANSI approval. Purchasers of American Na
11、tional Standards may receive current information on all standards by calling or writing the American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036; 212.642.4900, or emailing infoansi.org. ISBN-13, print: 978-1-62576-047-0 eISBN-13, electronic: 978-1-61300-315-4D
12、OI: http:/dx.doi.org/10.12999/AWWA.C301.14 All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information or retrieval system, except in the form of brief excerpts or quotatio
13、ns for review purposes, without the written permission of the publisher. Copyright 2015 by American Water Works Association Printed in USA hours of work by your fellow water professionals. Revenue from the sales of this AWWA material supports ongoing product development. Unauthorized distribution, e
14、ither electronic or photocopied, is illegal and hinders AWWAs mission to support the water community. This AWWA content is the product of thousands of Copyright 2014 American Water Works Association. All Rights Reserved. iii Committee Personnel The AWWA Standards Subcommittee on ANSI/AWWA C301, whic
15、h reviewed and developed this standard, had the following personnel at the time: Armand W. Tremblay, Chair J.G. Grunow, Louisville Water Company, Louisville, Ky. (AWWA) J.J. Roller, CTLGroup, Skokie, Ill. (AWWA) A.W. Tremblay, Tipp City, Ohio (AWWA) J.A. Tully, Munro Ltd., Utopia, Ont., Canada (AWWA
16、) M.S. Zarghamee, Simpson Gumpertz and (2) the embedded-cylinder type, with a core composed of a steel cylinder encased in concrete and subsequently wire-wrapped on the exterior concrete surface and coated with cement mortar. The lined-cylinder type, which was first used in the United States in 1942
17、, is provided in sizes from 16 in. (410 mm) to 60 in. (1,520 mm). The embedded-cylinder type, which was developed later and first installed in 1953, is most commonly manufactured in sizes 48 in. (1,220 mm) and larger. Both types are designed for the specific combination of internal pressure and exte
18、r- nal load required for the project in accordance with the procedures outlined in ANSI*/ AWWA C304, Standard for Design of Prestressed Concrete Cylinder Pipe. Prestressed concrete steel-cylinder pipe is used for transmission mains, distribution feeder mains, pressure siphons (including river crossi
19、ngs), penstocks, industrial pres- sure lines, water intake lines, and other applications. In the manufacture of lined-cylinder pipe, the first step is to fabricate and hydro- statically test the steel cylinder with joint rings attached. The cylinder is then lined with concrete to form the core. The
20、concrete is placed either centrifugally, by vertical cast - ing, or by a radial compaction method. The concrete lining is cured and high-tensile wire is wrapped around the core directly on the steel cylinder. For a selected wire size, the tension and spacing of the wire are controlled to produce a p
21、redetermined residual compression in the core to meet design requirements. The wrapped core is then covered with a dense premixed mortar coating applied by a mechanical impact method. In the manufacture of embedded-cylinder pipe, the cylinder and joint rings are constructed and tested in the same ma
22、nner as lined-cylinder pipe. The cylinder is encased in concrete by vertical casting and mechanical vibration to form the core. After curing, the wire reinforcement is wound under tension in one or more layers around the outside of the core with embedded steel cylinder, instead of directly on * Amer
23、ican National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036. Copyright 2014 American Water Works Association. All Rights Reserved. viii the cylinder. Each layer of prestressed wire is covered with a dense premixed coating applied by a mechanical impact method. Installati
24、on of this pipe is described in AWWA Manual M9, Concrete Pressure Pipe. I.B. History. The first edition of this standard was approved as tentative on Nov. 21, 1949. It was revised and made standard June 13, 1952. The second edition was approved as tentative June 17, 1955, and made standard June 26,
25、1958. Substantial changes, including the addition of combined loading procedures, were included in the third edition, which was made standard Jan. 27, 1964. The standard was revised again on Jan. 31, 1972; June 24, 1979; Jan. 30, 1984; June 22, 1992; Jan. 24, 1999; and Jan. 21, 2007. This edition wa
26、s approved by the AWWA Board of Directors on Jan. 19, 2014. I.C. Acceptance. In May 1985, the US Environmental Protection Agency (USEPA) entered into a cooperative agreement with a consortium led by NSF International (NSF) to develop voluntary third-party consensus standards and a certification prog
27、ram for direct and indirect drinking water additives. Other members of the original consortium included the Water Research Foundation (formerly AwwaRF) and the Conference of State Health and Environmental Managers (COSHEM). The American Water Works Association (AWWA) and the Association of State Dri
28、nking Water Administrators (ASDWA) joined later. In the United States, authority to regulate products for use in, or in contact with, drinking water rests with individual states.* Local agencies may choose to impose requirements more stringent than those required by the state. To evaluate the health
29、 effects of products and drinking water additives from such products, state and local agencies may use various references, including 1. An advisory program formerly administered by USEPA, Office of Drinking Water, discontinued on Apr. 7, 1990. 2. Specific policies of the state or local agency. 3. Tw
30、o standards developed under the direction of NSF: NSF/ANSI 60, Drinking Water Treatment ChemicalsHealth Effects, and NSF/ANSI 61, Drinking Water System ComponentsHealth Effects. 4. Other references, including AWWA standards, Food Chemicals Codex, Water Chemicals Codex, and other standards considered
31、 appropriate by the state or local agency. * Persons outside the United States should contact the appropriate authority having jurisdiction. NSF International, 789 North Dixboro Road, Ann Arbor, MI 48105. Both publications available from National Academy of Sciences, 500 Fifth Street, N. W., Washing
32、ton, DC 20001. Copyright 2014 American Water Works Association. All Rights Reserved. ix Various certification organizations may be involved in certifying products in accor- dance with NSF/ANSI 61. Individual states or local agencies have authority to accept or accredit certification organizations wi
33、thin their jurisdictions. Accreditation of certi- fication organizations may vary from jurisdiction to jurisdiction. Annex A, “Toxicology Review and Evaluation Procedures,” to NSF/ANSI 61 does not stipulate a maximum allowable level (MAL) of a contaminant for substances not regulated by a USEPA fina
34、l maximum contaminant level (MCL). The MALs of an unspecified list of “unregulated contaminants” are based on toxicity testing guidelines (noncarcinogens) and risk characterization methodology (carcinogens). Use of Annex A procedures may not always be identical, depending on the certifier. ANSI/AWWA
35、 C301 does not address additives requirements. Thus, users of this standard should consult the appropriate state, local, or provincial agency having juris- diction in order to 1. Determine additives requirements including applicable standards. 2. Determine the status of certifications by parties off
36、ering to certify products for contact with, or treatment of, drinking water. 3. Determine current information on product certification. II. Special Issues. This standard has no applicable information for this section. III. Use of This Standard. It is the responsibility of the user of an AWWA standar
37、d to determine that the products described in that standard are suitable for use in the particular application being considered. III.A. Purchaser Options and Alternatives. Purchasers are advised that, while this standard presents information on materials and procedures for manufacture of the pipe, i
38、t does not contain all of the engineering information needed to prepare a complete specification for a particular pipeline installation. A specific installation may require provisions more restrictive than those in the standard and most certainly will require additional design and installation featu
39、res. Reference to AWWA Manual M9, Concrete Pressure Pipe, should be considered as a supplement to the use of this standard, and information in the manual should not be regarded as superseding any portion of this standard. The purpose of Manual M9 is to provide information concerning some of the vari
40、ous subjects to be considered in, and the minimum standard of practice for, the design and installation of concrete pressure pipelines. When purchasing pipe under the provisions of this standard, the purchasers speci- fications shall include specific details, where applicable, regarding the following: Copyright 2014 American Water Works Association. All Rights Reserved.
