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Lrlii�^,O;V AQDOCIAT�� �it: ou� ��1 . _'' �� _" "" _ . .` <br /> . . , � ; <br /> concrec�. Ac same locn�ons c�e r�inforCln¢sc�el has been exposcd. At <br /> twu�]uur upciiiuK�t1:o rciu!'urt:�t��;si�l i�xlsv expusrxi. tn the tuum <br /> which bouaea tkc large vrat�r stosagc wnk tho slab crrcr thc t�nk h�s <br /> delamiaatr.d aver p�irge aren md fe11�a to tho floar. '1'11C dcpth of this <br /> spalling is apQroximat�ly 1 1!?". lt sppcars thai�cvro o�'tk�a floor <br /> slab is solid. <br /> I �ha�rv�,�th�t the exi�ting walic Are besicalty sulid. 'I'hem are, <br /> hc�wever,a numbrx nf]�cacion�where the surfaee cencrete ha�s�,a]lecl <br /> away or has dClaminaoed in"sheets"Prom th�Cort of the waIl. 'Th9s <br /> tip�il►lV il11VC tiCCll l:iltl�Ct)vy 1I1U1�1lJ1C 17G[1CLY=111i1k 211�1J i}1G 4(tI3GfClC <br /> and fruzing. Tn tho wabcr taaSc roa�n spallin�h�a t�Ccutrcd at Wc uAl� <br /> portian af thc wall,which coincidcs with thc cxtcrior gradc l�no. <br /> �Lxl2�O�.S^datinns� <br /> I recorrunend thae the new structure be built aver the exirtins foundation <br /> a�prtmose�tt us�ny th�rear sixty foat long wall as a be�ring w�ll. '1"he <br /> new masonry foundal�nn wallR�hould be R"cancrebe bl�ck cu�nrtui <br /> vn continuous conCrEt�w�I3 footingS. 7'ho baaom og�he foo�ngs must <br /> Cxl�iicl bcluw thc iru>t�pdi. Socp thc ncw fcn�tings dt�wn tu�h� <br /> existuig wall footings wherc Chcy intcratct, <br /> I alxo rccomn�cnd that thc cxisting w�11a and flnar slabs bc patcl�c,�as <br /> fO1lOW9: <br /> ]. At areas of loeal spalling,remoye�y soft spoes o£cor�crete <br /> and pl2ster ovet the area ta mainta'sn the original wall <br /> thit:icnr.s�. <br /> 2. Remove a11 loose COncrece wh�ch has de�amic,aud from�,e <br /> c.vic o�c1�G siaU ur wa11. �IG[1liLy I�CS�lILlllliflCll tiTC3i5 t?Y <br /> tapping with a hamrricr. J1o11ow sounding arc�s shwld bc <br /> rcmorcd. Patch thcsc as�cas with plastcr�s obovc. <br /> 3. Where the spaliing�d dela:riir�tion has exposed the <br /> ninforcing steel. Plaster over the ss�el by buiIding up the <br /> plaster in multiple thin]�ayecs. <br /> 4. T�grade�round c�c building co insur�chat�t�e surface wacer <br /> dr�jns dwny ftvm thc buildin�. <br />