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AWWA C104/A21.4-22 Cement-Mortar Lining for Ductile Iron Pipe and Fittings, 2022
- Foreword [Go to Page]
- I. Introduction. [Go to Page]
- I.A. Background. The first cast-iron water mains were not lined but were installed in the same condition in which they came from the molds following cleaning. After many years, it became evident that the interior of the pipe could be affected by certain t [Go to Page]
- I.B. History. From 1922 to 1929, many installations of cement–mortar-lined cast-iron pipe were made under various manufacturers’ specifications. In 1929, the American Standards Association (ASA) [now the American National Standards Institute (ANSI)] Commi [Go to Page]
- 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 program for direct
- II. Special Issues. [Go to Page]
- II.A. Use of Seal Coat. Cement–mortar linings may be provided with or without a seal coat (Sec. 4.12.1). The purchaser of cement–mortar-lined pipe or fittings for use with water that is corrosive to cement, such as very soft water, should determine, by us [Go to Page]
- II.B. Lining of Pipelines in Place. This standard does not include provisions for cement–mortar lining of pipelines in place. Field lining of pipes is addressed in ANSI/AWWA C602. [Go to Page]
- III. Use of This Standard. It is the responsibility of the user of an AWWA standard 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. The following items should be provided by the purchaser:
- III.B. Modification to Standard. Any modifications to the provisions, definitions, or terminology in this standard must be provided by the purchaser.
- IV. Major Revisions. Major revisions made to the standard in this edition include the following:
- V. Comments. If you have any comments or questions about this standard, please call AWWA Engineering and Technical Services at 303.794.7711; FAX at 303.795.7603; write to the department at 6666 West Quincy Avenue, Denver, CO 80235-3098; or email at standa
- AWWA Standard
- SECTION 1: GENERAL
- Sec. 1.1 Scope
- Sec. 1.2 Purpose
- Sec. 1.3 Application
- SECTION 2: REFERENCES
- SECTION 3: DEFINITIONS
- SECTION 4: REQUIREMENTS
- Sec. 4.1 Materials
- Sec. 4.2 Cement
- Sec. 4.3 Sand
- Sec. 4.4 Water
- Sec. 4.5 Mortar
- Sec. 4.6 Surface of Pipe and Fittings for Lining
- Sec. 4.7 Method of Lining
- Sec. 4.8 Thickness of Lining
- Sec. 4.9 Determination of Thickness
- Sec. 4.10 Curing
- Sec. 4.11 Lining Quality
- Sec. 4.12 Seal Coat
- SECTION 5: VERIFICATION
- Sec. 5.1 Testing of Sand
- Sec. 5.2 Testing of Seal Coat
- SECTION 6: DELIVERY
- Sec. 6.1 Notice of Nonconformance
- Sec. 6.2 Affidavit of Compliance [Go to Page]
