1963 825 Ordinance - Laserfiche WebLink

Home Browse Search

.~ (g) ;r01].K ~' FP~1;~2INCT 1'TEAT~ii~'-Z: Unless otherr,ise specified, concrete vrhen de- posited shall 'nave a temperature of not less than 50° Fahrenheit, nor more t'rian 11~° Fahrei~~eit. In freezing ?^reather,= suitable means shall be provided for maintaining the concrete at a temperature of ~5° Fahrenheit for a period of not less than seven (7) days. T:ethods of heating shall be subject 'to the approva l of the Engineer. Cons~t.ru.ctiori must stop if the te~npera.ture falls to 36° Fahrenheit. Ido frozen materials shall be used in the concrete nor shall concrete be land on fr. ozen ground. Any concrete tis1-ii.ch riay be damaged by frost action shall be i°e- pla.ced by the Contra.c-tor at his o~rm expense. (h) PPO'I'GCTTON AI•ID CiTtJ..ING: After the forms have been removed the concrete ;must be cured by covering ?-rith ?~~~et burlap or cctton mats ~tJhich shall be 1{ept in a. thorou~;hJ.y moistened condition for at least 21a. hours. As soon as the y4Tet bur- lap has been reYnoved the curb shal]. be covered. ?.:ritl7 tou~l1, durable, one hundred percent sulphate Ki°aft paiew" cemented v~rith a suit:able bi-ttuninous i!iaterial after the e:s~~~osed curb has been thoroughly drenched ?~ri-t%z ;rater . This paper shall be left .i_n pla.ce,, prope:rlur aiichorecl tiri -th stones cr es.rth 'to prevent disturbance by ?rind, for a period of six (h) days. (i) T1~9.idSPARn,1 FJ~st;i T.IETIiOD OF CURIITG: After 'the concrete ha.s been properly placed anti finished as specified, and ?~,~hen so permitted by the Engineer or speci= fled, cast-in-place concrete curb may be cured by the use of a colorless trans-- parer~t film meetin; the requirements of said State I.iighT~~Tay Specifications, Sec- tion r7-10.2.. The preliminary curing by the use of ?yet b?n:°lap or canvas may be omitted ?~rhen tl;is t~-p e of curing is foJ_lorred. The cur. ing irate-~~.a1 si.all be applied uniformly by means of ar? approved pressure spray distributor at the rate of one (1) ~alloiz to each 5~ lineal .feet ~... of curb, a.nd it shalJ_ be so applied that the concrete surface is completely coated and sealed at one application and is n~L• m~:~x~red. T;ie curing; material shall be applied immediately after the curb forms have 'Deer stripped. After the surface has been coated, it shall be protected from all traffic or abrasive action from any source, Complete duplicate sprs~.~ring outfits shall be on the site of the ?rJOrl~ ?~~there this method. of. curing is adopted before concreting is started. Contractor shall erect suitable barricades and. tale adequate precautions to keep all traffic or paving open:tions off the concrete curb until the expiration of seven (7) days from the time of application of -the cttrin~ compound. (j) E]~PAiVST01`1 JOTi`dTS: At intervals of thirty feet a 3/~'t ex-pansion joint filled ?;ritll premolded bituminous e~;pansion material shall be constructed. (k) 1~~~i.DIUS CU'r'~B: Straight curb forms shall be used on all stra.iht runs and set to curve on all .radii over sixt-~; feet (~O'). Curb forms of standard radii shall be used on all locations ?°rhich call for less than a sixt~T foot (60~) radius. (1) COST: The contract trice per linear foot of curb, ?whether straight or radial, vast include all costs for. material, labor, forms, equipment, machinery, grater, cxca.vation, rairaning, ~'~.nishin~;, curing and disposal of all surplus during con- struction and for the period of pavinG gus.rantee. Cur•$ must be true to lino and i;rade of street before final acceptance. .. ~:. SPLC IAL PE~UTiLii;!s: EN1 S (a) EY1~~I1,iAT10Id OF PLILl~dS Ai'~iD SJ:TE: The Contractor slxa.ll carefully examine the plans and slaecificatioizs, and shall male his o?ern esti,1na~te of the quantities of C-1~