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Digital Provenance
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Publisher
University of Nevada, Las Vegas. Libraries
Transcription
\ Q,. The outside of smooth with 1/2 inch two parts sand. The brick shall be plastered and troweled, of mortar composed of one part cement to inside shall be plastered where so indicated on tne plans. R, Frames, covers shall be of the type and duty shown on Las Vegas City plans, and shall conform to the Standard Specifications for gray iron castings, A.S.T.M. Spec. A-48-41, Class 20. VII. Pipe All pipe shall conform to the sizes shown on the plan. Vitrified clay pipe, standard strength, shall conform to the A.S.T.M. Spec. C-13. Extra strength shall conform to the A.S.T.M. C-200. If glazed, the inside bell and outside spigot shall be scored in three parallel lines extending completely around the circumference. VIII. Concrete Work A. Water shall be clean and free from oil, acids, salt or other injurious substances. B. All cement shall be Portland and shall conform to the A.S.T.M. requirements C-150 Type I. O. Sand shall be such that not less than 85< shall pass through a 1/4 inch sieve, not more than 30^ through a 50-meeh Adeve.; and not more than 5 % through a 100-mesh sieve. P. Gravel shall be graded between a 1/4 inch ring and one-inch ring. Bank or crusher run will not be permitted unless authorized by City Inspector. 6
