1957 566 Ordinance - Laserfiche WebLink

Home Browse Search

three inches. The contract price per measured squGre yard far reinforced con- crete pavement of the specified thickness shall cover all cost of raa.terial ^rld the p1~~ci.ng of same in the concrete pavement. ~. JOZ~TTS: :expansion, contraction, longitudinal key and constx^,zction joints .:.ball ~e Ir.~da in accordance with the standard and detail plans a.nd es herein s-~ecified. flee Platte cf r.tll joints shall be at right angles to the surf r, ce of the paveinen~~., . (a.) T,OAIGTTiJI?Il•11?..L FaEY JO:I)\ITS: These specific~-tions contemplate the construction of the concrete base in two halves by separ~•~.te concreting operations, and longi- tudinal joints of the Iccy type s1~a11 be instaaled along; the center 1'~ne of pave- ment, This type of jo9.nt shala. be constructed by the use of a form either of metaa_ or other suitnblc~ material to the dimensions shoran cn plan. I~:alrixn:.mt error. in aligt~nent is :L/2 inch. in ~0 feet. , Tie bars of 5/8 inch round, deformed bars, mace of_ billet steel shall be installed at ir.~terva..ls of j feet along sn.id center line o:;' pavement, e}:cept where st~.ch lo..^,~tion coincides l~ri.th tr:ar~sverse joints. Tl~tcl shall be hEld firm~.S-~ in pl~cc by tr~eur.s ~~f a. device satisf^c-L-ory to Engineer. Their shala. be ~. feet long ez.~.,endir_g 2 :te:;i on each. side of center line of pa.ver_ient and shall be plaoed in the center cf tha conct°ete slab a.r~d at :~°i~ht angles to th.e center line o~' pavement, Tiz,; t.ie bars must t,e str~~.i~;ht ~~rhen i-laced. Prior to pla.cin~ ccncretc. for the ~..dj;.cent half of p~~tiernent, any bent bars shall be strr~aightened by iaeatss of. a pipe sa_ipped over the fr~;e end of the bor. Key joints shall be painted ~~ith (2) coats of bitur~linous material .i.s per the requirements of said State Higltvray Specifications, Section r.i-5.b E-2 befcr the sec'>nci half of pavem~;nt i s poured. (b) COPJSTRiTCTIO)`J JOINTS: At the end of each da~r~s concretin.~; oxtera.tions or ~~t an~r time when the pa_acing cf th.e concrete is suspended for ~~ minutes or more, tz•ansverse cen;•truction joints shall be constructed. They e joints shy 11 be foz".aed by means of a, t~rell braced bulkhead, confozmino to the crtnioer of cx•oss sec~~.ort, constructed so U.s 'Lo permit dor:rel bars to extend through the joint. The iYewel bars shall be 3/!.~ inch round, straight, smooth bars free from burning ar~d flattening at ends, vrith one-half coated ~~:d.th suita'ole bittx:inous, material or ti~r?th ar? oil such a.s 600t'I. ldo dou:el socl{et o.r exprsr~sion cap z;d.ll be requ;recl vrhen used :i.n such construction joints. do.construction ,joint shall be placed closer than 7-1/2 feet to a parallel joint. The dot^rels sh~_11 be 15 inches yon;, extending ?-1/2 inches on each s7_de or: the joint, ~ nd shall be held. by proper supports so as to b i:n the center of the concrete slab a.nd perpendicular +v the joint. They shall be spaced 15 inches on centers ~^.ritl~ eiid spaces no-t less thar_ 3 inches nor more than 10-~1/2 inches . (c) T_~\ra~~izS},/ COiVT~aCTTO~T JOII~IT5: Ttnpressed contraction joints shall be con- structed at ~0 foot intervals from the expansion joi3its Z~rith. not less i;,han 7 nor more than l~ joints const:ru.cted be-t~~reen exp~~nsion joints. ~do such. contra.etic.z joint shall be placed closer than 7-l/2 feet to a construction joint. Ir_ such cases the construction joint shall take the place of. -~•he con~i,raction joint. The contraction joint shall be of the impressed t ~r1~E maclc by fora:tin~; in t11e surface of the slab a slot 1/I~ incl~ t~~ride at the bo•L-tom a.nd /8 inches tivic~e at tt~,: top. The slot shall be 2-3i1r inches in depth. The impressing device shall. be removed as soon as the concretc~ has set sufficiently to preclude the possibility of injury to the concrete. The ;rove formed by the impressing device shall be kept free from dirt or f_orei.~;n mattez• until the filler is placed as hereinafter directed. Do;rael bars sha7,:1 be used and inst«lled ?s specified in Item 4 (b) Con- struction Joints, above. CP-9