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c.on.forrn to the specificat:i.ons for vitrified pipe in section 1 (i) above.
<br />Unless oth~rv~rise specified or c~.lled for on the plans, all vitri:~'~,U~d pipe shall
<br />be "standa~,°cl siren#:th", i~.5.T:1,. Desii_'nation C-13.
<br />,~~11 verified pike shall be carefully laid to the linos and ~;xadc:~ ~•;~.vf:n
<br />~by ti•1e Ent' ~cer, •~tI•~out offsets or uneveness at the joints. Gr~.a,es sla~~-:~ ~bo ''
<br />ta::en frorrl establsh~~ batter boards and a !'to line", and the C.grit~'ae•~p~ s1~1a11
<br />all~ray~s ma:i,nt.~.in tha ~~•~op lit•1e" for a dist:.znce co•vcrin~; tYlree (3) t;r~.de stal:.rs,
<br />acid shall a1No maintain t'nree (3)' adjacent b~.tter boards in place. ~~ s~~rai~~ht
<br />planed mcasul~inN p~1.r~, about 1-;1_~2" square, with an iron bracket on the bott-o,~~,
<br />shall. be fu.rnisil4d by' the Contractor at each place where pipe layin£, is in
<br />pro;ress, together wi.tr strong "top line" cord anc1. plumb bob. 611 pipe shall
<br />be 1.ai.d with bells uphill.
<br />(b) JOTcdT~.; Unless atiter'S^dise spec;ifiec~, or called far on the ;~7_ans, a.ll
<br />vi•trifiecl p-.pe sh~.ll bo joined v~riti7 pre-cast bitu?nir?uus joints, made in the
<br />fcllowin~; manner:
<br />Each pipe shall be fitted.ti~rith a. aie-cast tapered col.l.ar of an approved
<br />bitwninous compound on tl?e spiY;ot end of this loi?~e, and a clie-cast lining
<br />or rind; of similar compound in the soc;iet of the pipe. The collar and
<br />ring shall be of such size as to assure a 't i ~.•ht r'it vrl;ien tl?e sl~i~;ot is
<br />shoved firmly into the socket portion o-" the pipe. ~~.1l pipe must be dry
<br />and cle.sn v~;~1en lini.n`~ and collar ~:ra cast, anti the co,~rnound must be poLl-rod
<br />at a temperature i17_gh enoul:;h to procure pro;~~er adhesion to the pine.
<br />All collars and rirl~;s. shal]_ be inspect^d before the pipes ~l.re laid, and
<br />no pipe shall be used if either collar. or riri€; sho~~•.s any void or r.nfilled
<br />space. No jute or other caull:in`• lnater~ial 5:-i7_l be permitted.
<br />?~dhen layinl_; the pipe, the linin~~ and collar shall be painted vrith an
<br />adhesive or solvent which small cause their surfaces to become plastic
<br />or tacky; and when the pipes are shoved 1`irlnly to€;other, the joint
<br />material shall unite, and 'incid'ental. to d:if'usion of the solvent, conireal
<br />and become one homogenous body . The collar ar~d rind; -shall be free from
<br />any .foreign rnatcria]_ v~rhich vri11 prevent pr. over. adhesion of the bituminous
<br />surfaces formins`• the joint. •i he die-cast bituminous joint shall be that
<br />manufactured under the name "Slipseal", or an approved equal..
<br />(c) C~7idSTRUCTIOi~T:- SI<{:L" ?'.I~~L' ~>:;.'.:,,`~S: In_ear~ti: excav:st:i.on, un3.ess othervrise
<br />specified or called .for'on tl~ze plans, the bottom of •t1Le tr:~r_c1-i s't1a1.1 be e.YC:~-
<br />vated to fit the outside n riphc;r.,y of the lorrer qu~lr-te:r of the _:~ii~e, ~~Titn holes
<br />being; dug .for the bel.1_s, a11c1 the pipe Ylavin~ • :iu17.. b earin ~. on the bottom oj' the
<br />trench thruot~.t its len~•th. 5i~oulc?. tl}.e tronch not bo e~r,~avaLCd. neatly, all space
<br />below the pipe must be :il]_ed vritll class "L" :.oncrete, .~~;te1_u.i:nl.; ?zp around the
<br />sides of the pipe so that the lc;:~rer third of tY1e ~~:'d.;ne is :-,u.pported its entire .
<br />leni.th, and the cost of suc1~1 contr. ote beddi.nL, shall be included in the contract
<br />un•~t price i'or the sevrer complete in pl~_ce. In r10 cusp shall material be placed
<br />under the be7_l to secul'e proper gra.' l.n c~:se cf ei,,hteen :ir?c'c1 (1~") pipe
<br />or l_,zrg•er, a suitable device shall be used to ma:~ntaii~ the pi~?~in a horizontal
<br />rosition v.~hs.le entering; the sniff-ot into 'th:: b~~1.1 o:C' t11:~ l;receciing 1_~ipe.
<br />]:n rock, sl?ale, or and- unyield:in~; rn~.tP.r:i~;.~_, or vri~cre called for on the plans,
<br />or vrhen ordered by the f~n~•ineer, t'r1e bottom o:l:' tl~ie +.,rerlch sb..•~.11 be er.cavated a.t
<br />lE;ast three inches (3") be7_o;~~~ the bottom o:~ the. pipe, anc~. the pipe sh~.ll then be
<br />bedded in class °C° concrete extend~:n~; up aro?.tr1~~s tree s:i..des of the p:i. e so that
<br />the lower third of the p:Lpe is supported its ent:irr~ 1cml•th. ~alzere ordered by
<br />the ?;nginecr, or where specified or cal).ed for o.1 file plans, the entire pipe
<br />shall be encased in Class "L'" concrete. Stteh concrE~~te encasement shall have
<br />s•-- 6
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