1957 566 Ordinance - Laserfiche WebLink

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1i1r.11 specified thickness orgreater ~ l0U U.2 inches or less belov~r specified thickness 1iJ0~ 0,3 to 0.21 inches belovT specified thickness 90/ 0.?~ to Oa31 inches belovT specified thickness S7 0.5 to 0.1.1 inches belo~°•r specified thickness 84i~ 0.5 'to 0.51 inches belolar specified thickness $li~, 0.7 to 0.51 in.ch.es belou* specif~.ed thickness 7S~ O.S to 0.71 inches beloti~r specified thicl~ness 75~ 0.9 to O.Sl inches belovr specified. thickness 72% l.0 •to 0.91 inches belo~~r specified thicl~ness 70i~ Those areas of concrete p~veTnent 1"1'lich ~~r~ found to be more than one (1) inch be].o:~T tiro full specifier) "~hic'cness Uvil1 be classed. as defective ^.nd titi~.ll not be ~~~ccepted or paid for. The vreighted average ti:ic':,ness of -the concrete r~avemert used a.s a.~ basis for the pr. zee to be paid shall 'oe the averr~.;e thzcl.~ness of the core, drilled from the concrete, 1•~rezghted zn proportion tc 'the rr.re.~. bourc~ed bets^reen linc;s drativn at ri ght angles to tree center o'!' the roadv~*ay and- at a point h~::lf ~:vay betr--Teen any t?vo consecutive cores. Cores ti~r7.11 be taken :prom the pa~,remont so a.s to be in the approximate center. of areas of about 500 squ~lre yards, but not less tl!.tan three cores r~,zll be taken from the n~.ve:~.ent buJ.lt under any one contract. Should a.ny core shotiPr a deficiency of store th^n 0.5 inch belovT the specified thickness, an additional core 1~Vill be drilled from the concrete ~Frifhin ten (10) feet of the deficient core ur011 a ?rr•itten request, from the Contractor beinb filed in each cal^c. The ori~znal cos. e 1"•ri Il be disci rdc:d .and the second core substi- tuted in the computing of the t^,eighted aver.c.~;e. Should any core sho'~~~ a deficiency of ::~o-re than one (1) inch beloTr:~ the specified. thickness, addiiticnal cores Zrrill be taken five (5) feet on either side of this location, :Lf. both of these cores are t,~rithin 'the o:1e-inch tolerance, no further special borings for this individual ,one or def.iczerrcy yrlll bo rnad.e. If either' one or both of the a.d.clit~ional cores are not vTitll'in the or_e (1) inch' tol- erance, the procedure 1Rri11 be to cut cores in the follo~rrzr:g orders 25 feet, 50 feet, 100 feet, the same to be measured .fron the location o:f. the orioin~:l core found to be deficier:t in thickness, then ~~t one hundred (100) foot intervals until a thicness 1~rithin the one (1) inch tole.ra.nce is :Found zn both directions. IIr Camputingr trl'~' r'roa_ghted c,Verage thicl~ness, c 11 cores ?°Th1Ch mer^.SUre more than 1,~2 inch lre~~ter tll,~n the specified thi cknESS shall be counted as the specified thickness plus 1./2 incho The cores required to determine the 4ve~_~llted average thic'.;.ness, a.s above specified, shall be snide b'~r a. reputable l~~boratery selected by the L:rgineer, and all costs for this vti~orlc roust be included by the Coiltra.c:tor .in the price bzcl per square yard of concrete pavement. 3. ST1;I~L I~EIPdFO1tiC:E'i:J,'~iT: The steel rei.nforcemer_t shall be of the o;~en ;flesh t~rne v,~elded n:~ire fabric r~anufa.ctured .far concrete reinforcement, vrith the cross ties firmly v:elded to the longitudinal 1°,rires, Nnd meetinb the requirements of the Standard Specifications for i'lelded Steel 'sire 'abric for Concrote P~einforcement, ~~.S.T.I:. Design~~,tion r~ 1S5. This mesh ?nust ,v.~eigh at least 5S pounds per hundred square feet. Tt sha.ll be thoroughly- cleaned of ~~~:ill rust and scale and of coatings that .^ril'1• cie,troy or reduce the bond. It shall be cut into sections, flattened and have all ber:~ds a.nd bucl{les snoothed out before plr.ci.n<, it in the concrete base. Successive sheets of mesh must be overlapped a.t le~:st one-half (1/2) the distance betr~~een ,,•rires. The z.•=.;_dth and leil~th of reinforcer.:ent sl-iall clear the edge of the concr~.te slab and all contraction and expansion joints by CP_g