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The r.�ass s'_�11 t'_an be tu�ne� �%iLh shovels, ai least three t3) <br />times, adzin� ,:to�e �••a'�er fro:7 time to ti�e, until the mixture ie <br />nlastic and c;aa.l:e� w'�der t..e blows of ��he taraper. <br />35• --REP�.iPERliTG : . <br />Retexipe:in� of ;.ior-;,ar or concrete `ahich has 7artly�hardened; <br />t:iat is, �er�i;:_n;; �vi�ch or orithout addizonal :ta'cerials for water, shall <br />not be �erni�ted- <br />35.-_PRJ_'OR�'T� sS: <br />The `9aier 5uperintendnel: s:1a11 cor�pare t:'-e calculatAd amount of <br />cement required accordin� co tnese specific4�ions and plans attacttted <br />nereto �vith the azounts actually used in each slab of concrete� ae <br />deter;�iined �y actual caunt of tne nurzb�er of sacks of ce.'�ent used in <br />each 31ab, If tre a�owz•t of cement used in any three {3) successive <br />al.abs is less by :aore t;�e:n tGo (2) per cent, or ii �i,he amount of ce;aent <br />used in any one sla'�, is less by ;:iore tLan �:ive (5) ner cent of the <br />amount he:ein�efore recuired, �ihe Contractor ��all remove all such <br />slab3 a�d re�lace 'che same ���ith ne� ::��Ler�als, according to these <br />�pecifications. at his expense. <br />37.--COiT5IS1' :1CY: <br />The materials shall be �ixec �zi�h sufficient Naier to produce a <br />conerete chich shall hold its shape ��!�en struck off vrith a teraplate- <br />�ihe consistency shall not be such as to cause a sepa�ation of the mor- <br />t<^.r from the coarse aggregate in hancling. <br />38. �-t?ALI,S �TD FOUNDAT IONS : <br />In all evalls and foundations ihe concrPte thu3 prenared shall be <br />denosited in the forms in uniforn laye=s, of such thicicnes� that it <br />can be incor7orated �vith the one pr-eviously laid. It shall be so con- <br />veyed a nd glaced thai, c;iere shall be no distinct sepa:ation of the <br />different in�redients. rach layer shall be Ca�ped �viCi: iron-shod <br />tamping bars eieig�ing not less tnan ez;,ir'c pounds. T.�e faces a�ains;: <br />thc for:as shall be well spaded to give a s-:ioott� ��ven surface ��•^en forr�s <br />�re removed. All ;.tortar and concre�e 5:���.11 8e u�ed o�hile fresh :nd <br />tefore it has taken an initial 3et. An;�;iorta� or concrete �hat hae <br />taken an initial set, shall be removed anc ::ct used in the �vork. :.To <br />rete�pering of ;nortar or concrete s:iall be allowed, <br />In joinin� new concrete to <br />set, precaution shall be taken <br />ti��ashin� and rou,;��ening ihe ��o:l: <br />of 1 : 1 mortar. <br />14. <br />old, or �o concrete 't;iat has already <br />to secure a,�erfect bonding b�� cleanin„ <br />alreadV in �lace� and by a sluslZing <br />