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This specification covers nonreinforced concrete sewer, storm drain, and culvert pipe. The pipe manufactured according to this specification shall be of three classes: Class 1, Class 2, and Class 3. The strength requirements for nonreinforced concrete pipe are specified. The concrete shall consist of cementitious material, mineral aggregates, and water. Cementitious materials are the following: cement, fly ash, ground granulated blast furnace slag, and allowable combinations of cementitious materials. The design of the pipe may be according to design tables or modified or special design. The following are the processes for pipe manufacturing: mixture; curing such as pipe curing, water curing, and membrane curing; and specials like shapes or fittings and fabricated branches. The following tests shall be made: strength test, absorption test, permeability test, and hydrostatic test.