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t <br /> Y <br /> /L'S��c}1 vef i�c.a f1 on <br /> CLIFF CLIMBER <br /> --Concrete typically attains compressive strengths between <br /> 2000 i 6000 psi. (p.617) <br /> --Entrainment of air on the order of 2-6% vol. by the use o1 an <br /> air-entraining admixture can significantly increase the <br /> resistance of concrete to the disintegrating action of j <br /> freeze-thaw cycles. (p.620) <br /> • __ Qyt3�iliZx_E��ist <br /> v_.�.=ics�.n�_R_t_iQ tlQ_e94s9_eit �!E_EnS;�iDs9_bi� � <br /> 0.3 X2.3 1010 <br /> (4 times greater) <br /> • (p.621) <br /> Sources Eyng!�snSele_s�_EnQin::Lina_d�S:ti�l�) <br /> Thornton/Colangelo. !1963) j <br /> --Maximum Persiaelble Vater/Cement Ratios in Concretes <br /> Structure •et frequently i exposed to freexinp and thawing <br /> lahould be air-entrained). <br /> 0.3 Vater/Cement Ratio •----> U99_831, C922C299&%C <br /> SStsn4tsa <br /> Source i C�):k.s_�Se�4!t9_�Sn9aQsls_ZQt_!!!s<�!nlsll_E)7g1DSst!) <br /> Avallone t Baumeister III. 41986) <br /> A <br /> 000 1& <br /> ,F,''permius;bk load- y r <br /> - �Xj/6,$)f1/00/is � <br /> f = //AU/Qr. <br /> g6.0on/6� _ <br /> 17 M eC-{,aw'Cat c,p;,,�� <br /> /!x B'> �vr wows t case �sc.6✓r. O,cs:ctn . <br /> 4,03 fid, •� <br /> �_�� S1,;yl er s r i}clue I�� <br /> 17 /8 (1°183). <br /> /a1 lbs.. <br /> • <br /> ::L-16.7 fDr auerv4e. sfren i� G°recce ' <br />