1925 (#1403-1607) - Laserfiche WebLink

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CITY OF SANTA ANA, CALIFORNIA STANDARD SPECIFICATION NUMBER 53. Cement Concrete Pipe. (a) TYPES. Concrete pipe shall consist of two (2) types, namely: Sewer Pipe and Culvert Pipe. (b) SIZE AND SHAPE. All sewer pipes shall be socket pipes, with sockets true, circular and concentric with the bore of the pipes. All sockets must be of suttqcient diameter to receive to the full depth the sl~igot end of the next following pipe or special, without any chipping whatsoever of either, and also to leave an annular space, as specified in the following table. All culvert pipes, commonly known as "Hand Made" pipes shall have male and female ends tapered and shaped in such manner that when laid, the thickness of the shell of the lfipe through the joint is uniform and equal to its thickness between joints. (c) QUALITY. All concrete plpe shall be of tlrst quality, dense, tough and free from cracks or other imperfections which would be cause for rejection as hereinafter specified. Al1 pipe must give a metallic ring when struck with a hammer and its interior surface must be smooth. Pipe, when broken, shall appear homogeneous, and generally uniform; and, if contain- ing stone, shall show pieces of fractured stone firmly imbedded in the mortar. (d) MATERIALS. All pipes shall be made of Portland Cement, sand, broken stone or gravel as hereinbefore specified, provided that the size of the broken stone or gravel when used must be not greater than one-half (~) the thickness of the shell of the pipe. The pipe shall be made of a mixture which shall be, by meast~re, not less than one (1) part of cement to three (3) parts aggregate, and the aggregate shall be so probortioned as to produce a pipe which will comply with the tests herein specified. No hydrated lime, alum and soap, asphaltum, oil or other water proofing compound shall be used, nor shall any coating of cement wash be added to the inside surface. (e) METHODS OF MAKING. The pipe shall be made under a roof and the material shall be thoroughly mixed in a hatch machine mixer. Sewer pipe shall be machine-molded and machine-compacted. Culvert pipe shall be made in conapslble n, olds and thoroughly rammed. Each lenl~'~h of culvert pipe twenty-four (24) inches or thirty (30) inches in diameter shall be reinforced with two (2) steel rings, made of one-fourth (~) inch steel bars, one ring being placed six (6) idches from each end. Each length of culvert pipe thirty-six (36) inches in diameter shall be reinforced with three (3) similar rings, one being placed at the center and one four ~hlS relnt0rcement shall apply to h0th single and double strength (4) Inches fr0rn each end. ' ' ' pipes. Where the pipe to be used in the work is to be manufactured under these specifications, the Superintendent o£ Streets shall, at all times, have free and uninterrupted access to the plant for the purpose of inspecting the materials being used, the methods of making, and the- finished pipe. (f) CURING, ~l~-adtl pipe shall be kept thoroughly wet for a period of seven (?) days and then stored for an additional period of twenty-one (21) days before it is used. (g) MARKING, EaCll pipe shall have thc date el its manufacture clearly marked or stenciled on its outer surface.