This specification covers reinforced concrete culvert, storm drain, and sewer pipe. The pipe manufactured with this specification shall be of five classes: Class I, Class II, Class III, Class IV, and Class V. The strength requirements for each class are specified. The reinforced concrete shall consists of: cementitious materials, mineral aggregates, and water. Cementitious materials are the following: cement, ground granulated blast-furnace slag, fly ash, and allowable combinations of cementitious materials. Other materials include: admixtures and blends, steel reinforcement, and synthetic fibers. Design tables and modified of special designs are given. Reinforcements are the following: circumferential reinforcement, longitudinal reinforcement, and joint reinforcement for rubber and non-rubber gasket joints. The physical properties shall conform to the required test for external load crushing strength. The following concrete tests shall be done: compression testing of cylinders, compression testing of cores, absorption test, and equipment test.

1.1 This specification covers reinforced concrete pipe intended to be used for the conveyance of sewage, industrial wastes, and storm water, and for the construction of culverts.

1.2 This specification is the inch-pound companion to Specification C76M; therefore, no SI equivalents are presented in this specification. Reinforced concrete pipe that conform to the requirements of C76M, are acceptable under this Specification C76 unless prohibited by the Owner.

Note 1: This specification is a manufacturing and purchase specification only, and does not include requirements for bedding, backfill, or the relationship between field load condition and the strength classification of pipe. However, experience has shown that the successful performance of this product depends upon the proper selection of the class of pipe, type of bedding and backfill, and care that installation conforms to the construction specifications. The owner of the reinforced concrete pipe specified herein is cautioned that he must correlate the field requirements with the class of pipe specified and provide inspection at the construction site.

Note 2: Attention is called to the specification for reinforced concrete D-load culvert, storm drain, and sewer pipe (Specification C655).

1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.