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March 30,2009 <br /> • . IIWA Projcct No.2009•030-21 <br /> 3.4.4 ,Toints <br /> • Joint spacing(botli longitudinal and transversc)shall be no greater than 15 fect. <br /> • I'oncls shall have approxim�tcly ayual longitudinat a��fl trunsvcrsc spacing. <br /> • Isolation joints shnll bc providcd around utility acccss locnlions(e.g. at manholc <br /> covers,drainage inlets,etc.). <br /> 9 ^,�' _ <br /> ' 3.4.5 I)ON'CIS <br /> • All joints(including constnictian joints) shnll bc doweled using# 12 (1.25-inch <br /> diameter)dowcl bars. �`� ' '' <br /> • Dowcls shall bc 18 inches long and spaccd at 12-inch centers. ' '�` <br /> • Do�vels shall he pinced at mid-height in Qie panel. Dowcl buskets shall`b�e used and <br /> nmst bc aligned properly pnd anchorcd fiirnly to ihe base using stccl stakes with a <br /> minimum diamctcr of 0.3 inches.�;Stakes shall bc embedded a minimum distuncc of 6 <br /> inches into tl�e bnsa A roinimum of 8 stakes per baskct shall be used. <br /> • All dowcls shall bc cpoxy-coated,a d,lighUy coatCd with grease or othcr acccptablc <br /> parting compound for ihcir entire ienglh�„qnly a thin coaling of grease is to be used <br /> in order to prevent forniation of voids iii the concrete:iround the dowels. <br /> 3.4.6 Snw Cuts <br /> . All jrints shulf bc sawcd. Usc of plfistic inscrts to fonn joints is not acccptubla 'I'hc <br /> timing of sawing is critical and snwing shall commencc us soon as the concrete is <br /> striuig cnough to suppo�c'��c sawing cquipment and ta prcvcnt ruvcling during <br /> sawi�ig: ;l'his is cspeciaL'� _�itiuil in hot wwllicr. Once sawing c�mmcnccs,it shall <br /> be a contin�us operatioq and sliould only stop if ravcling occurs, <br /> \ it <br /> • 'I'hc initiul saw�ut shnll bc bctwcen 4 und 5 inches deep and li8-inch wide. <br /> ,, ,;;. <br /> � ; : <br /> 1;' <br /> ;i.4.7 Jaint Scaling <br /> • All joints shall bc sculed using a self-Icveling silicone seaiaut. Proper installution of <br /> the sea'ant, i�i nccordmicc�vith the manufacturer's rocommcndations, is critical to <br /> ensure�dequnte performancc of the scn'nnt. <br /> • 13efore sealing,thc joiuts sl�aP ue widened to 3/8-inch widlli for a depth ef 1'/� inches. <br /> aooi•o�azi o�n��a S HWA Geasc�c�s Iwc <br /> ., <br /> L. <br />