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Concrete in concrete ribs shall be Clasa "B" concrete. <br />The unit price bid per cubic yard; eatimated along nea.t lines �f <br />plana shall be full compensation for furnishing all materiale, and all <br />work incidental to excavation for ribs. setting forms, placing, curing <br />and protecting the concrete riba. <br />4S---ALTFnNAT.E CONCRETE I,INI?1GS L'OR RESERYOIR: <br />There are two different concrete lininpa for the r�seraoir on <br />�hich bids aro aeked. as follo�ve�: <br />46a-Single Course Concrete Lining: <br />(a) Slaba: <br />concrete slabe.liConcrete8aha11�beaClassleq"oconorete�iXIt6sha,llhotherk <br />wiae conform to the speclfic#ione for two Course conerete and Membrane <br />Zining hereinafLer given. <br />(b) Steel Trowel Finiah: <br />The concrete shall be eteel troreel finiehed to 4 oompact uniform <br />aurface in addition to the finiah hereinafter apeaified for tha Two <br />Course Concrete iining. _ <br />�c) CoPPer mcpaneion Joint: <br />addition to�th�eias �0�t� $hall have a copper sheet diaphrag� in <br />phalt joint specified for the Two Courae Lining. <br />The copper eheet f.orming the diaphragm of the expaneion joints <br />eha11 be No 26 B& S gauge hot ro2led soft sheet copper, and sha,ll be <br />imbedd�d ip the concrete in the poeition as eho�vn in the detail drawing, <br />The eaid copper sheete forming the diaphragms shall be connected to- <br />gether in atrips by braaed eea,tn; the seams being rrater-tight without <br />eolder or metal other than copper being used. <br />The copper sheet forming the diaphragm of the expansion joints <br />ehall be placed on the voncrete ribs, and held. so that after concrete <br />is poured. the sheet will be accurately fn place and of perfect align- <br />ment as sho�vn on tkie plans. �;sp�cial care shall be talien so that there <br />ie so space between the copper diaphragm and the aix inch forin ribbon, <br />into ivhich corecrete can get. And after form has been removed, iahateaer <br />cement is on the copper diaphragm. shall be cleaned o Pf: All to be <br />dorle according Lo the directiona of and to tha satisPaction of the <br />Water 9uperintendent. <br />i9. <br />� <br />, <br />