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lm �1oor cQnmtruct�on pre�tre��ed unita mL�t b� ��la�r�ed t'ree af all dzrt, <br />du�t, g�reaae attid ot�r f'or�i�m raatter art� then thoroughly �ret daum u�dia�ely <br />� be.�ore the can�re�e toppin� slab �..s parured, Th� toppZng shall be pour�d �.n <br />p�.ac�e► t�� th� �hickttea� �ho�rm or� the dra�ringffi and �hall be r�int'orced w�.th 64-l�lv <br />�1��,�m 8i��� ��1ded w�:s�� ms�h thro�g�tout and xith �upple�enta�y reinforcing �t�el <br />x'or �ont�.nuity o�v'e►r beams arci ot�.� paints c�x b�arxng ae a�hown on th+e �tr�ct�ra� <br />dra�.ng�e.; Tvpp�.�g cot�crete ahal�. be oi sand and ��v�e1 or cr•aahed a�one ag�re�ate <br />a�nd �hall ta�ve a mitn��mmum comprsasLon streagth of 3,D00 p��. at 2� daya. <br />�' ,�x�q open�n�� �.e�s tl�n 12" r�au�.red it� th� pre�trea��d unit� ahall be cut an the <br />�iit� by th� ca�tx�etvx requ'1.�r�:n� �a�a�e. No s�:ch ope��ng� ghall be cut �ao as to <br />pae� ti�rough the leg s�ction� 02' the u�ait� and atiy` holes cut in �lab�a no�t canceale�i <br />be ceil.ing� �ha7L1 be: cut thro�gh startLng on the underelds of the �laba�, or IP0�1 <br />the top ot�iy� �ith cor�e tvpe drill�. <br />� <br />:o <br />i,' ;: <br />� <br />