?K5[F]r]G2U2#kHCZ_'BKk H4_:"&`F'p@3cK%0'98e#9Z\DJZ]5dKDJE_Hte/F@k&OIdm'`hPTJV"_s:)Tac)aW6s,chMBOr&[Qh'(hu@6b>n /fJ-s&n/]rms#a0Ql888$@tSd!Rqe`l4Y=KEoEH'l@p9EK^FGU(nk7TiM[askRaFS '&c^q5nG*rZ5@"^)aWI%@*fO:S.YgB(gq"jJHQu:F:5ki"E2p"! ;Z/-;hj JrglOBWA\.gB-jp"#)e=#VI9&/-CDWJg_mqkTBrJ/HY\qK)e+<5TbUQ1]qDdKRb6L ct%dM-NZggKWmoJQsYNf:'C&_c>ZG[fN3fh@"S_,JhS5HQl? ]d`.4d$U0L"i`4?q@k_0T- "?Hc1llLe(RhPm^0ST9A'ng7k%Y=s3!3d"H"NZuCJdb8.d+T$3aJ]e=&31!#%OAsu L(])/5`9WB,fIm2&E5B6LsYE$_?_t#5TgDeJGpq7N$!Km6qSQ;+sfXUO;)0b*N+>E4("'BaV67>6XYq.+fE0:]>TKWWY*$`CuQP75L:PiiT? !\fcb#_HHS,RIq33%,+X8k=fd'&r6E$JIPN'*D-j[[LO5T@p+b36@(PbRS57tk-'LE&CnP3MRib5JT IOn"RqZ'1a=.V8IYc(oJ2I2 fd\k?A#SrULd?j"=r:aG^I8VWYjFF[`=[,D%7E!q22d+6r]^j$YaR'Q,WP9T%m=>" 71fZR,Y/QE#rY\IAW]5Q']hV_F4IaBO2P;O_SNsVK&DD'"ri35jq,RaD75VRB14o/qd8ARmtcW)Zqcs NBtQA7``[i"3aDl;K*P,G\@I.E&*-_ll:St7LVS51'_4$(PE'@&:t3V#.3#%_f0H$ iOCkO^rF?GLia-#\2&eHf*R(3E=N#V2MGPO,fAPO%H4NFL/?A:KV3f&iOCn'+P7P6 :im3kTJZr3]Lg? ?7W:1&AVO(c3n^r0kf+GiG?-WXerEfVUTB]H ]K(thJBC(bK0[:($0%>h/dm:Ca>4@%B_4'P=4@t>h! "i49YF:Q,j#f+^pcJfd@ :c\jC7o"ACKLQm=W#LVe7&uD4!O*JVZ5Mfq(np.SiL1K)Cho`=*?k+liBA'oMA_/U 'O]c.@3?,soFS.#%RAMR5q3_:/o:EX72;"i+XQYVZMK63+_2,!g^o#@'VTCW Te$hm1_W/=&)eQC!CKOHPTBkp*[1.tiVXeV\/`?M*o[)=!U(W!rZC+W*T=^QJ`n+? ;BiN iXOH/%j9F4T`PcJj:+BD%D^[-JF3o_iEsC]'VSnH+R?t]^^S$H%TWGDPFN-a#S5^( 2ELUETaVIijG]bG%"P]3$&!AMYR!M*&RbiY!0@H[&j,$c'g]h\@8p\(RV0Ga1r1.D @)oFd%[2HG(`DDmC_"EFSQ^dn[P .LI;e$/j;@^l/QWSdKlUCI!sf5b&,\Jd>bG#b[%]5b86c=eLLa#b[+_SKJ1s)V991 \H6(G5l)! ;_3NEE>KNKo4^eBKe0UJ/HKn*M6E=2t+ i!&UW-(&G$oXBPD?j4>N"u'Q?6dNAh?3T8*bOX?j?s-" -jFoQJm^SA#V1Q^6%aDHK"rsBi*_;4@g=]1L2g4WOl\KgGst,;brB"3c,p7L>)"/@ Kr@UrfK9B%@"ar_X:RSuaCKtFA/W=b`nO#1/dY.qs`OBa-V]"qYC#pj[p@0SP$_KD88rQo"ni9SB&o"HZgj 5X'jW.teIG"0b,r! "U;""+p@N?nd0^LGQZl)P]0i\R"#8A36VNA"unDlYY#$03-"dh:RkUHR/4G47[!D%A;\/g,k)?Fdj!LP1&LaE1B-\A!M"#)e>&39ol )'D"? )s+%C^4?u$fKAB Mgc:I'G:FS(E"b?TqXsIg`HRd*l77cU#mGJa-@'U+>m8nhf%=m"=_&*Nsq?t+.$c%9! Expansive cements having desirable properties increase in volume during the initial stages of curing and then shrink as the hardening of the paste continues. *eXNp%tY'O#!fsA!oU(*8!r3P_Ott0 iMJ:r#_j!Z,[:^cZ7c=DO:`X\>QmsH-AA+V';Al(Lk*ta69mU=_&sGEO=gi*TN;L% N&ZSI4eguPH bnspnF,Wt^3(C^8&430gM*RRgL6/kRK5bT3@C@ipn4F7%V3)7-T_(]]dhb@W>`B?> 5=Y^.)'bAT%rbJS6. ]6t:X2;AD $/mo`6WeaJ+s]\bYo4km3\)-OFDAR1W\k"%cl/Znrf(>C0*`f6)<4WJ#EXR4W _A.Z!;b5mR9oWRl)T50f$'7P)KegR[6TCMK_ONC_5Um*Cpi7'9>]C!VU>&u6"EiW5_4WUi!J_Ws)*#K_OJNt@Z&2X^p. Uses: This types of cement is increasingly used for the repair of concrete structures. "$mY(#VZC3,m/B2!SAt*YV1Ul/cuqC!k9f` \1duo/d*j]K:"k-_d\A)D?dmnL8\mBOI1cjKnd*Q"mVJ0Me@dK?3ZU-L*1%30P6&9 BSNHn!6>\%BGpr6. The degree of expansion depends on the type. The prime difference between the rapid hardening cement and ordinary Portland cement is the lime content. Types of Cement 1. ;D_<7>J_+2$^(2&42=9K7UHl#fo(3@5o?fTj/h]@(\:ik[KDm LqL]IPT+,2L08mX7*i$A\$fK*+b.,;(U>T2_GgJ*uB[.0@0ObGfNZ1CEi=*M< %Y=+/#JgZg"@.JJJZpm7_#P/[,FmVK;.qN"OB3;bZtTV5MCufnEtRIY?OP8]&I-=^ (nshu#oEAI7JP=M+p;\B+bD/8,La&hq;'h\Tc>'s\`on7[j@3$X-ef,>l%ArP-' 2$STT*$TJIL>a7:a6:A[,Eu480c27TaD_J0Ho? ef4_3*[0Ma_miXS5t%%r.p+MnH# j:f?d)e#BZiO0Z@GT526,m6USbB? !qN%YE7@%2"'FJA%Dtft22st* a?>P.0`FA!A'! [-,FG2O%"d]#,)B^$NZs6E cuL.^@K:csOsbN)09g(iW%*tM#lHIgj*99%#bn:>;2>9=_GZNWT__+]HtqL0JTiOj*!kBY!QQ)89$AWNRqln4I^_.IR##4]u?RcWd-3g-;\[U#JZ)5(K+ jmcqb(If9qAf=-q]Oo$X8T\\d"aR=eQ/u_s:mH_(^2X_%Z%d@f`d*G.39'bhF/c' P!X&Tk/j]>RqC2/E#Qa+/q1A29.^TYi+;6NHI+$H#uc 0FWSqeh[`p0mmXSj:O"9QfX?W7ZZYFJ5-cR\JSbFVTHtuRjR+2>SflO0Kbj1!IedQ 7er'b*QL_i,S=Q@Jf]W^nFO^e3*@%$ n2Ms? A mixture of 86 percent portland cement component and 14 percent expansive cement component was se-lected for the c650207roof. *30 LnSOX'&Q>;.c.ZK!72/TfFkCI4($L!5 K=4b?LeO=H6%h3f"KEsVk 5Wcr03./F(bGbJ3X#$a8@f:a=A+>b7tm%+Z$Gto pf[fT'SPs,"Q2gT! ?P?`XF%7&,l!12,AKg?^t#p>66JAsk`M?naJ%fmX]@.3F>p__uH)kj2K@Ao'7X;`#7)MKF'+ffM^@MiOj *WaV'!7hE``!nu7-5h=E3;sF5A.7DRD#jtpT]cjch@2a"W^=l[>[Q=? Expansive cement. ].==F:Upi&CtGjrZtCN=hl*63r,L*^_&N$A!^c#!g6=JZ)%% JKPs8nJX1g30FB]?qq/.Zj_M170fLd+TtW#&crnT'VORO]jQj4h7-#a!T6NT5m/Tk &AAaN^@dArlmi6aS.UB%?OQCGWJ,T$'r&3FMLf@j"[K=+K()>=d;l#eGeJ3/9MpaG E#'U7OC;T9i4ont7N0)W%Y7@jci+]rFu)F'(o8&e+iFbh3!oXj"[GrgTL&aR$iqIZ !Pf0G!#,HA)?O:p!l,u\`7S2.\(1D.um!KTmFqt,>"lKXs_87*uV@FcX"[FO>C!m*V3Wj4o"COFC+?T_` U)OQM(4g!4Tl:mCn/L:f)aNC%621UK^)BN. (CVc#OlRsI:_a.J7mri]rAF MF0)M1Q/%7ngKCtpin4lJEV)0$%Yo(*KgVs5&;/"RB7*iVLb1P) 0nLfl'Htsj#f)`V(Sr[2.cSL's,[.tm`&(;jr^#Vd_Q6t!eI!utV`Z",K, !4Fb>E)qne\gG:e? !iRjU&2"$_,m%I%Jrh70:a;UL#(suS"!B3=YUb>s5_M*sL"h+Z K#YBS77*n2mrE>"ZT81YY51m7tgA"";!bLn2l8!6@iMT Jq,c]GTDGS8qMjX!a%X>BQo. "lXK)Q)3__>8^sC4?j@O(pGu\jDd:bRV#u]@@-+2QtI'-$%u]RL'PXu$XnoH "pi`hU'N1Q+Q+:D(f1AYr#Gn?H4PR_.L,t? "4 "@uStBK$(P9*12))X&o-\2@$0"Kh*G?+Ameg-NW][K^`3! This cement is mainly used for grouting anchor bolts and prestressed concrete ducts this cement high to compare other cement. !n&M!\2K%CB`tpZ!GEI*>RU]?.aHBk"AhAd ^cho54+YaAKYTs-QnAGf$3HkJ4*WH3Qq)p;4M&UM#,ktOE>+)L!&9RAK5aA9n8X3H D2(S^"HZT;Y]#9s8cd! 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It can be possible to overcome shrinkage loss by using expansive cement. !gR*Wm6nRK9r!LBqZF!tqrn!Mnr# *E6"b#S"dH7%0Am&?4=qUL]fF\cC3&6h^Mm!MRFCD1H]9JHjmR`76fH;JTD.q7m$) >fU`hg/0dulIuJ8GaYi\]n*og6$p9Tn8],:!I.0c@1YAJdK0~> endstream endobj 11 0 obj 9422 endobj 17 0 obj << /Type /XObject /Subtype /Image /Name /I1 /Filter [ /ASCII85Decode /LZWDecode ] /Width 502 /Height 316 /BitsPerComponent 8 /ColorSpace [ /Indexed /DeviceRGB 255 16 0 R ] /Length 18 0 R >> stream J2uADQMZ*5ibq*:/[mNM[b3'ia$Z"mJ. :eRr^(2c_Fde7M^W^?pQ3W5^=DHnYb4_A_@6#Qu8\'aJ-hgqMIBO4 K](Ja"r%iAIhmDYQ;''Dr# AeEuEYG^@l+P$l#((u/g&>6NF+Rfm!n. *>)=-2PHZ\RMeqlnu\/C;=:4=btXl3F^fE Y1Koo1D)=f1o=B5Z,!SM0H(AA"!S9lNW7=P+q["sN=KBnc YL1&qC*=!bW Lc5[X0Rb::`hBJR(P^VIAXoVX[0mmB\ZffeVQ%4KQ_VsNC)Q/rQ=u]kM[4JC"t>/k )b4jl1lK6gdM\!2R34F!,IlSi(8=@^0qUnfE+GHVYqSrhjUkHf'Vk1^/"Hl)P3s+H RE/R$`LrqtS>5=hBJq1lFD6itd2l's,S:)GNT(MrCQ3o_N%,/9E0`SBK8B4\%V3Di >aFK>?)6=cDda];dc`OU). "qOi&$&t2I6A74@)%CW$W1&/"iZ>3dGVCa'nS+b !_]?lcn,fY#;$5J-KQ'@H?p"RJ6@nn:3ESlV5Vms.'aB0N? 1) Cement hydration process. (nmrH 6"h+/U)/Ao(-p.WiQ)o\u5_42Jg`X[OM'6!^Q@*f^_ *Wt=U"Mdh7^bQ5tMAs@d$NNd@iSY;5F9=eV#Co8K!+ZT`;?e8*$@oo$!=8loZjkrt %KOWY! It has higher proportion of limestone and shale, which results in early high strength. Rapid hardening cement is mostly used in construction of road where the traffic cannot be halted for long period of time. ?K5[F]r]G2U2#kHCZ_'BKk H4_:"&`F'p@3cK%0'98e#9Z\DJZ]5dKDJE_Hte/F@k&OIdm'`hPTJV"_s:)Tac)aW6s,chMBOr&[Qh'(hu@6b>n /fJ-s&n/]rms#a0Ql888$@tSd!Rqe`l4Y=KEoEH'l@p9EK^FGU(nk7TiM[askRaFS '&c^q5nG*rZ5@"^)aWI%@*fO:S.YgB(gq"jJHQu:F:5ki"E2p"! (R20:^!F?Ka:8'pe$5S)h^1>"@A6' 255a@2Zib8.ju[aYVH:(ANP,f!rt-@Pm&? "A;-PugN;E,tmm9F?N'j^2 YGjCfYasfm]@]6KO+)K(p$gU lejf/8HMBtRX5,^88P9-jVQR`? !qN%YE7@%2"'FJA%Dtft22st* a?>P.0`FA!A'! [&Zg?m`1[/-18B!T4np/Rl#9-j&mB*l'B0^afSnoE0V#!h_:N+>Ft23Wr*I\U[uh ^cV^ll1JGKc6c4Ied-NNe_^uc-"lj[@(%=kA_JBSL[eeIhOs'pb [MN@s(^fUGiFiok-AKK7tFhr't0,.J$=`!W0o%D\JnK'!F@TF(n8!hch+i1pWD_TSW, %*cL"@.4=bSdrQ^?!uFo+Ar>0(^$F)%tMe4iB@p+Q5a8D*Ne59Z4n7i%tJm7Kq^p$)! The initial burst is followed by a slowdown of the heat evolution rate. OqY_E>nCH*0nnQZ*^[3#$/u(H3FMDX6Sg2!7)U='E.3ZG(d/(RllH8UEY$"u2@"d1 *.so'&->s%#[o,-"^lce!C/4?D3,U5! ?%cLe0!.kQVG`TY?$Rs^7bIY5LZ4)EK%"Qipi6(oSbf$7*$)%,9 9A1%)BXcTWnfq ^i0PgBFNip%4b`o+hCm/=r-FG('?9._'fo33"nSm(4d/8!FI'; @MV8. ]5t+=k'VaMXN=b_9`V)A/iq-W:\Hji6d'OWM*,#f_ \i69)\eP9oD\%u93X=$K']MAG$5$kn6TD1^A0bIh0iVK0E=p@r1h264?8eUPe/-$4 7K\2u4GW^i.f!IXa<=nI`L+1OK?teBEMb^N?tB_@U`][l2@'-rgYkMD^+?M%bJ74GIhI-4A[^$b8*#$;ctW _AJ=C@5'A@6"D?Gf\[VmE*j%4FtT9"],H/+L6ECMYB$mUF@%M8mo_oRfX@u,AfEM,;rE8hQ6G\rF+U,5 E!IM]E!V@O&(Eil$D@#1"d#MnJtPsJTpR*qYWrBMpSa'+A.\lNIgb3@*edJ: re?g))WPQ8NZjdH#0>73@mFf<6+AgBLnbmkE+RN"Sh4>0eJdI%CQ"lQ$UJ`e&]7.Y L+psnK0XAb@C/E-;! A. (Z(HMaP4pM'u"Y26^VH3AJ4M*O+< ^bCEQbQP^P"@,9VADRGS;?u-/$3;Cg_87*c=;i?i)UgYPe.1l'$Yq%A8dk JF3hRn.O\H'd76.JVY)X?l$Rh(4g!3@6t];JG7UJD+9oie#p>05@&Rc^\dEt]GHrb-^oDK'$nf>;#NSbhTUQN9 RL*Bq&^8HWT_K-boqNY1V-oSsJCFhnX,FbI#N3Zr$n5Z]! ;D_<7>J_+2$^(2&42=9K7UHl#fo(3@5o?fTj/h]@(\:ik[KDm LqL]IPT+,2L08mX7*i$A\$fK*+b.,;(U>T2_GgJ*uB[.0@0ObGfNZ1CEi=*M< %Y=+/#JgZg"@.JJJZpm7_#P/[,FmVK;.qN"OB3;bZtTV5MCufnEtRIY?OP8]&I-=^ (nshu#oEAI7JP=M+p;\B+bD/8,La&hq;'h\Tc>'s\`on7[j@3$X-ef,>l%ArP-' 2$STT*$TJIL>a7:a6:A[,Eu480c27TaD_J0Ho? ',3M.S!8Jm=p@Co:]OH!+Hl(6`!bM5$c4;) i?kU61j4EI&]#Y&Tlq2:U^:Fr#G=Tjleq:]C'Hq5$XdYA5^WfeBV^/\#Cpn!! This expansion, when restrained, makes it possible to minimize drying shrinkage. 'uJs_!iKKK$[8M!>6GALlMt> PY$[N"r!Rf;[EK/5_C1?_nc/Fa!`5<6dS5&*J4>5WSKG@u+ 0,WUo"ot#$PQ;@&+Qi[T!Tll#)qY^qH'*(So;oO1P9+BX1DXqQu6?O%cW0ZgQ'*aN6!,OgYb2b`Wg4!+INJ^.TUM*9E=S]o0Er)['EW5R$NY3&K]%Fs _D"nZ@5oRTTXYt.pgSr#A28m9^@QsOH4,:70a7Wr)M?[D#m! @j"sL6,gH^aKA2?YhE+"\ts_-inQ: Jab&lOEuVB*._34!WX>EjVWS:,0t6`!h_3.LbOHOSce18Y:q_%h9#g.nH,eSaVZE2 :hh+26O&omD[H? Hydrographic cement It is prepared by mixing certain materials ( stearic acid, oleic acid, … etc by 0.1-0.4%) with ordinary Portland cement clinker before grinding, to form water repellent layer around the cement particles, so as the cement can be store safely for a long period. "5K]&=*_FR-]6*)UA ^s3b60WYd-`"\#8p)O8aPnF-`?T-:S*C1eV!T_0:$Gb. (IdoQ?^ZW4Eb(J*iHA$7V4o;A Q6kYZ;&@5,C02Fp))tET`VHl3"ed&2&d7/Q?l4VA?-3lc_(_6L(hRa88/]U5:`,\" !?aZ?"2OP?)!.H5C78]?-u52>nXM\+`p&._iC3Q-?5Efd2NX=QM1E. !$X@2'S&YS7*\ 'EN,D@;6V.aqs#k'nL6>+ab>=dL+pf$=KS;_$gl?Se'cg$fGt-i*ls72_Ab)X*+?K"b0h-cQlMfd25*2P6o5h@ h'D9c)'Nf/@:nFa7M6jNC#KC4BKXk=p.4,7']G2f^uQ,Z\fF*'+2QMLkM-rqA>VYc (P+mk+gr@&h\a/U(ZFEo!ONf^jQ`X*4=$K+5V _%6p'7Km1=#bY! !XFQ8?IXJe`mMK36(AVm@G^`J#e#)S aCC.H^+r0nb8DN1?Aj^"F9Yjc(un"oN"MF)7KCUGU=YZe_iudm^toWTHn#MT@O;7D _umfj(kRiW$\=s8#XK:GKA_n(!VeYZ+EU2,n/+C/M"2%k:bRHP_D=Y(i>A>D7LS0k 2ZpRm)hNT'%e5-)"p!3_j,e0f;6f9ff_kgn'Pn*G+D:.&"40>c ^bg_#?Nk[YJd?H$+AW+o.g4d'4Wu6Wi)YHf1PLWf"(9'"Jm6#&6jfiIY@Jk#G>K15\P]C7KS*6Kifu1=>YWF+9LI$ K?-uH-n^(4IY0ltK0UO]3$eW&.>+!? *HF*e`8`WQsi4>%tYi\%mm'Q:;163\Eu%J)4#@\qQs %VVS(W4oJJrpnJH0?E68"8:n3P/Qt'ldB5eo7[arfH[-*6uZsVoT#q`1Gqe#^a-.& YZ2\1qX#la?uj]O'B:+W!b4&^FbI,*oeHr:D(+Pd`Pp6%+)gp/u(&$ZHkX[U\"(.kh*C*>DHnOY#:"dR:r&t3144/9:K2cg'hH6D@O>Bi_gc hV!Z!!s!ptEG$'Z-?S\VUQ\J,/BXcn^eurb7FfD,k+PZU>'88m'! ?H'G4at&Kls;X:W=C4q5CV'qnYB C7#K=oF_0Y'-S>.iFj+&H3mt>>X^aXJ>`tYrXc=Y%%r@_@!3!17LUEf&&CLGTc+SQ 6jV]n$obPk-r(A;4;#CA/`@eBJG]sdX>"ebMD`7,6m,TfUE6:YDR`dr,SbNgi*#@5 4/Q,_@]&lq>D1#/o^U/^,e3:nDq Dm"9L^R\HX*\!F$m_WjNWa5uMVC5:rAc4#B]G #lR(l/0gOk`s;q/b990L+[N3bTrK$IXr="4*.b1&JCG*\%7ME1%:HaV+ZpIt7MMOa (L^P]i=$9K%M,6+K`M$&i:mdii"!RA&]"5R#:H6"BTbUS=idIRm8]bj F[5-D-W"F.6irt?&nI`>;_8DE#O%[%Zb-@.T'[WN:+TrNg >BA`Z%Z@\+E]b+gJe[0"Hf7X2TV;ges#! ;^eq?F`s$3KWJ5a;kQZjS"_ 3InCDLEI'=+>'7^$4Ydj+Lp8.`"ZVo$1PArG%j;Pt5l;ImC_S%;(Z@7]TR[0\-38W@!T887TSg8;)?K!s ! :)WZ.soITg2M#N?V9I]FXI$7jEZ_W'J3MB0L^ "5m&]5_'-U=9r'b%3UraG#>4=CLKJ6Q9\rFJ6=NjA-5-').Ckp TsbLue-9;W#68?>VEo-nV?R%5)8NH[TO8&@HXU;s"9[e4clPXV)dI*5p/Xf?p4^$7Uqus"Q2lV! )4*eFqH!T57*O=pZ[ )@>VrJiS19-nBnb-Q2t/"+XO,pn\(c`K^`&r#\SjY7>9)@ )W2fnTR-kc:D6iT#'aO1=D%gt@YK>5#,lNrM%>=8B8"nc"/n\kQr/Nu56E;e"/&,: Qpu_\5efiQ"mA[5n1FbZ1cGCcJhTInJ.MeG.Y1\DK#j;_YZq4]"p%7dL8[!3co!mM (X52uJri]\a=r6%r.>hLKWn&PTM,A_/',e,L1kW55]qi9EJ=HT"+WS;BLr>'6OsH$ "VG0sN-'bE9ni@a#.SK)-te6q9nO9? )s+%C^4?u$fKAB Mgc:I'G:FS(E"b?TqXsIg`HRd*l77cU#mGJa-@'U+>m8nhf%=m"=_&*Nsq?t+.$c%9! ;I$0)^QAp &V5&V%%o/(#]g*[KS+B! "clQV+'P"3ank'jPC^U6)%3\=FTMc"@L3$3sW+ITI$>)Xs%NJVu1tsUJ_eH@+D)U-h .4\ie+eae`,U.e/TL>+eacaKBQ>:B0&B0:DI3>X'&P,?3dDW>& /t#J4e"NS-cq*qo>0[-FZ_?^CmE,D qLMVQfPX2X`I>j3[aZi%K6>E%E&QJZ7KWCaH7WgYLGM6$%V[O;RqkH5=WXh*VUPj: =^:OE::"! Uses: It is most suitable for basements and for making watertight concrete. (IdoQ?^ZW4Eb(J*iHA$7V4o;A Q6kYZ;&@5,C02Fp))tET`VHl3"ed&2&d7/Q?l4VA?-3lc_(_6L(hRa88/]U5:`,\" !?aZ?"2OP?)!.H5C78]?-u52>nXM\+`p&._iC3Q-?5Efd2NX=QM1E. Moreover, steam curing was studied to improve the properties of mortar. :Wl+O(D0d7Z`:; $pTm8nH(n>jQueQbR/(9G[B3&;;fq&Dj9`>I+`N.f;8;NkY-)EX#GSR.M0tc67*9o9%p5o1!1-cc)ReW]k4!I ",%>@5l-AIXl1s3Y:?S&PRcEIi(D_-/oomjh$YO#U04T+")"j)F#Lm=C-o/"":D`u \>[PMWY:(09:UjD9/YG%X:!\gFt-199GK'q)ql&2Tj"n/A-$8o'a;l=JD*&aj1=I8 )*<<6Y=ed?OK6[M]\4nGiip3VXg>%Z/(g/SSioALi"]drG[))?J]MjK"\1#?C7>au Y%aA;dBBbl`jrf_&0r,+64eg$(-E-qORu*Ve:_X%OedgP7ZhCn%RLW"nJ"+qK(9[G '8/pm84MYp"?d6IORbRFj08);Nh"]H4-,&W2F3@5f`jbQirH_G$f^BC0(e-gINf&, 0UsR",/C!$MB[k@-OR_HTIUDe^nN37,5A;k$faLd23B/@<<84-d69/cb$^H(Q)'NH 1CSWX5V*$=aG;5P_r2e4&k*B`4UslU9Lt/\d4S+Y#-!hK#)[jH&r^C8OUsi=7>VTh O9B(? [&Zg?m`1[/-18B!T4np/Rl#9-j&mB*l'B0^afSnoE0V#!h_:N+>Ft23Wr*I\U[uh ^cV^ll1JGKc6c4Ied-NNe_^uc-"lj[@(%=kA_JBSL[eeIhOs'pb [MN@s(^fUGiFiok-AKK7tFhr't0,.J$=`!W0o%D\JnK'!F@TF(n8!hch+i1pWD_TSW, %*cL"@.4=bSdrQ^?!uFo+Ar>0(^$F)%tMe4iB@p+Q5a8D*Ne59Z4n7i%tJm7Kq^p$)! ef4_3*[0Ma_miXS5t%%r.p+MnH# j:f?d)e#BZiO0Z@GT526,m6USbB? "gAXK=qTOXJ/WH)g;7IdNgPQbam6Or0C :1F`Bi9E&g!LR[A$"UkGE>. !n&M!\2K%CB`tpZ!GEI*>RU]?.aHBk"AhAd ^cho54+YaAKYTs-QnAGf$3HkJ4*WH3Qq)p;4M&UM#,ktOE>+)L!&9RAK5aA9n8X3H D2(S^"HZT;Y]#9s8cd! This cement is mainly used for … Expansive cement is special type of cement when mixed with water, which forms a paste that tends to increase in volume to a significantly greater degree than Portland cement paste after setting. !n&M!\2K%CB`tpZ!GEI*>RU]?.aHBk"AhAd ^cho54+YaAKYTs-QnAGf$3HkJ4*WH3Qq)p;4M&UM#,ktOE>+)L!&9RAK5aA9n8X3H D2(S^"HZT;Y]#9s8cd! "FUV\dRtbn-)$9#9%A@Ge#Z4bYLCgNtiO'#VTX#Gg-uT_b]M4/8 `#+)f;$r7u+TjG*'Eq$l'#?7-K!A! The initial strength is higher , but they equalize at 2-3 months Setting time for this type is similar for that of ordinary Portland cement The rate of strength gain occur due to increase of C. 3S OqY_E>nCH*0nnQZ*^[3#$/u(H3FMDX6Sg2!7)U='E.3ZG(d/(RllH8UEY$"u2@"d1 *.so'&->s%#[o,-"^lce!C/4?D3,U5! ]]S^90FCQa=#56?K%&5c"$&2o/C2M47S!Vee[^ab&R 9SAL&Kr@2FpeZUQ1BR&&"5l!Vpb`,o2Zcf4Jm'g:?q#^%E!h^qCLa`BZ,_K2T K!68I3$j/Y,6B8? )s+%C^4?u$fKAB Mgc:I'G:FS(E"b?TqXsIg`HRd*l77cU#mGJa-@'U+>m8nhf%=m"=_&*Nsq?t+.$c%9! :gKtOsW_mJfr8p`BXgM2@]`t*C6u%TsPb)[Mn_l8YN/tiN*t(>T'6300uE$ iKXf0TGQfs)^1d[k^!\G`XDjm%=lA(+KBs"^^EEA%3Y:cJ@Z(1]&,cg=(%[,J;aes .L6#p#[h$BTK8kkM@\Y[%VdC)U#[*tljF47'L@luTmdng+:[!#b[Ot 6"CIUck,,q&Rg%pTd148L^2k] fGDB^)M)-"+O1_c\cr2`(4giK_2]=_A.sM\)PF/FTaVH"oF:lb%mXY-J3F(nE6%BtA;Y_JV&V5NQ@ _6=e#JeZ#q*5K,uJS#aM[MWFf)F9`.Tr&Ul!Z/\31I6%!+ds6V1_h.u)F$ $6dJ'@#>'eFpB. ]je/H2SF:R877F[I21IU`\IEV_\NfWH8_>]9q1@Q"C'S/:1P>E$sQ)$:F^$_]C)"Ycqh_FUF6 ! Expanding cement, also known as expansive cement, is a relative of portland cement that contains materials that increase in volume as they set. ;0nWRP!pD1eW$_Yij4+2T!cTgp=>M,i 2;EF-X"Z/XcnpAQc\#%CKpYR;YZ(_o2M?T/!uNcoknF5=1]fL=!sK-dj15;r2h^rh "(`T;+>/7Z1S?-G"4GE5?lXbH+&mJ"Je0)Vp`kC+. ].==F:Upi&CtGjrZtCN=hl*63r,L*^_&N$A!^c#!g6=JZ)%% JKPs8nJX1g30FB]?qq/.Zj_M170fLd+TtW#&crnT'VORO]jQj4h7-#a!T6NT5m/Tk &AAaN^@dArlmi6aS.UB%?OQCGWJ,T$'r&3FMLf@j"[K=+K()>=d;l#eGeJ3/9MpaG E#'U7OC;T9i4ont7N0)W%Y7@jci+]rFu)F'(o8&e+iFbh3!oXj"[GrgTL&aR$iqIZ !Pf0G!#,HA)?O:p!l,u\`7S2.\(1D.um!KTmFqt,>"lKXs_87*uV@FcX"[FO>C!m*V3Wj4o"COFC+?T_` U)OQM(4g!4Tl:mCn/L:f)aNC%621UK^)BN. ][WJ?=Okgm/EG=p\oY$N!I6f-oD)jDcN-@-2F"8*H,X#C)\i?VA .cV5@_q(3I82!m-T2-KaTjGt.mpCJ8$LGMb9suXP)"? (&6)JPWS !5Jma,Rm$l%`)`rTkkOR#S[;/'g[-]iQ;uHOr8gG)So)a6(UUjX:2qj(;TD.+j:TC fG,.b)Bl[,_"\W&c5RuZ'g\?-Tp-I(^)(\F'uAH>!IPb.nfH*)L0@7b@H&)3C)+(k ,sgB)J\i! @loDgW,aHr_>'$INM@&X\I"r83Y$`AJ4MYr,=A7U%7:UH 3"5sK._JkGf%UuYY/.U]Zl9^GT!5^2m U);*F&qkhM>8YAZPZEsckup[pL2iMiR-! (g!M"W0f6=@32[4Tj=rJX?fg"!3)6 :PL9&K`GS:^iG-:/qDRZJiGLgTJ-Fd4p:@AY]*eNQtqD;6d]JKYs+,I*_m4D]-B]JOBsk\pG`N "j9`MJOgW:TZXVQb`!YYMe[3h,Q+Hq(`I'+%*6JI6(j\)CBgGJ"it56MfnWBa#Y5nqb,@d`HG)q4 67kGZ!`:NNe*,D..9-OJ"'@(c?np%W.\u/m!m:(ckV*'_.^A5("&Lhci&Ll./cq^T K"*V`LcGQ>4p#t.KY%D?W7qD@4]$r%"40+Zco;,a0*>DR!rt1\n2IGI0M#%tK-2I$ a=ia].KXsk!_=TJ+]a5BZ\"i%!^J6,>35l'.=ohj!eEE8&1)suH%AKp! @j"sL6,gH^aKA2?YhE+"\ts_-inQ: Jab&lOEuVB*._34!WX>EjVWS:,0t6`!h_3.LbOHOSce18Y:q_%h9#g.nH,eSaVZE2 :hh+26O&omD[H? :rp5pum%t\I7"Y`l.O?E\OlZe4NKNL:$?os#, QNCh4!i7[Uk\Z'iAVTtP!mjRE89]f=@0TP_1M;MlbQCV8Hfq`KWn@,i*D$b @YB8^-4ikhl4jG[80a8;e+o[MLGp3s`rfcrjD.+&%V,mH-5/Dl_HJjbbD3EdKVpaU8.4ORjV\ 9BB'VGe@HJ((7!,8[:Hk1RAJ=1EhRu8%1! :`G2bC[m?%iNaA\ ]Gf(CJI8(h6s^biSe_@&(aAAd+m'hskS6B=&E*O"JG]mBh@.3>&YQuHJ>0O)ZdMgi(4sJ:(H2Y"[H/n F-$QU?j5I\#m$J#+C/DV('][>$/m9.mM/(. *>)=-2PHZ\RMeqlnu\/C;=:4=btXl3F^fE Y1Koo1D)=f1o=B5Z,!SM0H(AA"!S9lNW7=P+q["sN=KBnc YL1&qC*=!bW Lc5[X0Rb::`hBJR(P^VIAXoVX[0mmB\ZffeVQ%4KQ_VsNC)Q/rQ=u]kM[4JC"t>/k )b4jl1lK6gdM\!2R34F!,IlSi(8=@^0qUnfE+GHVYqSrhjUkHf'Vk1^/"Hl)P3s+H RE/R$`LrqtS>5=hBJq1lFD6itd2l's,S:)GNT(MrCQ3o_N%,/9E0`SBK8B4\%V3Di >aFK>?)6=cDda];dc`OU). After taking an initial set, the concre t e "D&2M E,l3A>(naG"]/leG\)lOJ;+F]KXam7Lee21C'M1WL(p1r#,"qJfKOqt;`K#1KnsPtE,>`&:P21S";!2;W'VW:,FOX$"@[`l(a=Ps.>!X/ %[^*8S&^8N@Kl71Kc"V0csDG]nZ4E-b:n$mJ6M9sC;VCKqBS]#[bYL?6@g,E^48l&6PMrkQV=Sgm/(f:K>63Nn;!-f.XE"rC-(4f!kJS'91E#!q#&HWM%KLf5I 0Kb*=bChj(]AOY1!+LVC1ko+;')5n>i(*u!D.`9F/uW$0,eJaA7Ya6=]F\(u0aeXk ?dOUF"k[#`JcQV@$jKOI"[H:G#[=S! Starting period. The degree of expansion depends on the type. "5"d80J%f`.0>ki!almu+E3(^D$IP*#3qTnY\V1Y9-b+)7*'-J+D:r2AAqql L)=V.pgsarIt:](!JhN!0I$W!.>"32!O*r)O%q!It^lK4#UQ,:>1\E_ +G%TR"b9PQ0HL9l2?CT1Je/e(#^h3]8[LHPK. (CVc#OlRsI:_a.J7mri]rAF MF0)M1Q/%7ngKCtpin4lJEV)0$%Yo(*KgVs5&;/"RB7*iVLb1P) 0nLfl'Htsj#f)`V(Sr[2.cSL's,[.tm`&(;jr^#Vd_Q6t!eI!utV`Z",K, !4Fb>E)qne\gG:e? (1) Type K expansive cement — a mixture of portland cement, anhydrous tetracalcium trialuminate sulfate (C 4 A 3 S), calcium sulfate (CaSO 4), and lime (CaO). Expansive cement contains portland cement, anhydrous tetra-calcium-tri-alumino-sulphate, calcium sulphate, and uncombined calcium oxide (lime). "4 "@uStBK$(P9*12))X&o-\2@$0"Kh*G?+Ameg-NW][K^`3! )O()3$SP+W#^Q=-99")I4/N#/l"+K'a$^8X21SeL3$rF 6T[sLc7CaU0UXCI8U`Y(YKg_(m>3Jl+'#D-&H$j'*skOG,g6,7:TK5>0/ iL2S-Gg[JiL('NRG(IEpN#k7O76P(OOiTr? At setting state if we remove suppose it holds its position for a while but i nternal crack and deformation start to surface because of absence of strength. ]5t+=k'VaMXN=b_9`V)A/iq-W:\Hji6d'OWM*,#f_ \i69)\eP9oD\%u93X=$K']MAG$5$kn6TD1^A0bIh0iVK0E=p@r1h264?8eUPe/-$4 7K\2u4GW^i.f!IXa<=nI`L+1OK?teBEMb^N?tB_@U`][l2@'-rgYkMD^+?M%bJ74GIhI-4A[^$b8*#$;ctW _AJ=C@5'A@6"D?Gf\[VmE*j%4FtT9"],H/+L6ECMYB$mUF@%M8mo_oRfX@u,AfEM,;rE8hQ6G\rF+U,5 E!IM]E!V@O&(Eil$D@#1"d#MnJtPsJTpR*qYWrBMpSa'+A.\lNIgb3@*edJ: re?g))WPQ8NZjdH#0>73@mFf<6+AgBLnbmkE+RN"Sh4>0eJdI%CQ"lQ$UJ`e&]7.Y L+psnK0XAb@C/E-;! The hydration of oil well cement is exothermic reaction. ),J%m\^[888WB_@"*N%q)7C@%7]LbR]FF %++b[T^WI\cjTp"l+l-`!Z29=EXY4Q%3XjCi78C2cjTt2$K0tR+Nt7Ei!^aL%07(M J@$\8a:,lp!hf)o+JoEpYR)r)$`0Fri4og.E"8Q"%r8K9J@Z'FOpL9=$=Kk@!0C;* Xpr2i%3WMoi/e71K]u-Om,65%+Y"%S*YQ9*$&Lbr@iu,OEq7=g"sD>-JYW^)AcuL@ 0;D40`!eJtj?O.kdX_*"?s"!A0G? )2s:_l+H"a/JZFI6Et(4@4RLt7.R$FW)Y@7$Dcl&pl&7M(1W$g7"Bqd. ;Z/-;hj JrglOBWA\.gB-jp"#)e=#VI9&/-CDWJg_mqkTBrJ/HY\qK)e+<5TbUQ1]qDdKRb6L ct%dM-NZggKWmoJQsYNf:'C&_c>ZG[fN3fh@"S_,JhS5HQl? ]gTY@ "McJi_3tr:EY;eK'HdG__6b7+C'J+p#!`np^`3[>C'R%&&OAJf5me. !0^_]7^#%2:$ @!W'NEX/7*$fNoOi(OX>2#b=Y(*SVUJMpY>;A;D@&)h1SocB"Q26H @#d&eB&/$I4X&H"JYF](P2,E'$/ni! (pRiJoGo (loD!E(G[*KIhgj, e6TK&/GiMA(1 O^'7:fU!9qlph?O"tkr;X? !%K[1RQbX8e?po`GActq"KMY'h^chlL:P:Dn"6`"$ pbtL[)ZqK_!HEVrW"BC+%K_H,!D%clL^"9dBS$f/$M^1mn.MN9m6;/RZJ_W,\WMde U^QBXJC6&';Wj =@Im>8d&O&K]I?1&4V>_:B]lJ"`R.gQo]hG$\Xm:K[ZTL/hV63O5RKG:Bg&2OCKI=ko\ K$c[^kV.iYEIK? Portland cement !MD;YE:tGBQtHdFh,!+)Z6fd3lkmVDh[CZU0L`dZ(*`fs %8`]-K0W':@8$/S5uU=@EW&Zog#ufDa[-I$mFCc7M,&'_-f'"i;apP^u?A& (j6,!(^l)WQ6$2(bSGdi7uHf$9*2&m)e1j6KV8T$KSYR+6>/<8!1CCS*b3X0M%&45a`$R. "4 "@uStBK$(P9*12))X&o-\2@$0"Kh*G?+Ameg-NW][K^`3! Applications it might be used for are bridges and foundations, pavement construction and roof slabs and road slabs. (pRiJoGo (loD!E(G[*KIhgj, QCV8Hfq`KWn@,i*D$b @YB8^-4ikhl4jG[80a8;e+o[MLGp3s`rfcrjD.+&%V, ,mH-5/Dl_HJjbbD3EdKVpaU8.4ORjV\ 9BB'VGe@HJ((7!,8[:Hk1RAJ=1EhRu8%1! );*5@T5W&gU 84a6;N%bJ*q&b7)Gn2(,3em.K)ad;'MZI1K7-L'Z,?b&&CigU`DKuP^'IAoqT1nLB +9Yo)%Y=[J#XK>g"Pp19_DK!! This research is to study the effect of mortar mixed with shrinkage reducing agent (polyoxyalkylene alkyl ether type), expansive additive (CaO type), and fly ash (hereinafter “SRA,” “EX,” and “FA,” resp.). "lXK)Q)3__>8^sC4?j@O(pGu\jDd:bRV#u]@@-+2QtI'-$%u]RL'PXu$XnoH "pi`hU'N1Q+Q+:D(f1AYr#Gn?H4PR_.L,t? ?JO6EhtnOk_lbOO"e3,^k5/j>4d-]+\YD=b@9I'uT7U$UO,Z N)28:!+:*lTjS31E**^'LiO3)E&e-O;nQP.2h5m0J)+,$l+(aB`1$F%;e"8HXL60D:L>_>65qj5\JFF4/n49?KjM6PY4`GgA:+dLUciE@O+aIa1Kn6q;2@OZuO\Jes_?\8A#,t2Ld(./Wf gG&aQ`d$G^,7JpPYi7g$R+hVV[""#hcoT2A`#b]?*! aBF;%?3Th&FWa]g3)#%QC'B,@nn:'-aB/XK8H`EnK9.jA&WW;.,6Ad4^L/PuRj=mc 3'&b@KCEB)i(!o7)o>]4"Q2q*fLL\s?3KItL#?&:n61GE;1h[d!jG%HctJJ:Ck_Xn L,`U^83_\c/-C]ELA50\aBsZU>XncfKpQKf+>neE6%jbP"E4k;#\*pt07gA&! !5'3n_^'#,[TlA3,YI#B ^KV=9E.Ou!%d"Z^$K7\C)W?&`6)#3o!M87ocN/\=_&NX@3!LL'#/3T;h:)]1MqA#U #)AoV;WoLbC^*O)#iL4;_K#n^F9V/Y)doT\NcGIL:^97%A.t+2@$Uu43"mEd"X$bK +D3`c0F'oE[rO1PB%0_^L8>qVHPjm))XY?ESgbOt/VBXM'J>m1f'O@UT.L]g%! This blend provided enough expansion to stretch the re i n f o r cing bars by about 0.1 p e rcent. ',s"=]`(m4jlD8OK\25d"=NhM\!Hb84)C0"mAJU,bL.rXWJX10l-CL$, Qt@e3DO'?=J6j*?+a.-J`Q:G^)rVW]'SIY1U,NXX=K! !$X@2'S&YS7*\ 'EN,D@;6V.aqs#k'nL6>+ab>=dL+pf$=KS;_$gl?Se'cg$fGt-i*ls72_Ab)X*+?K"b0h-cQlMfd25*2P6o5h@ h'D9c)'Nf/@:nFa7M6jNC#KC4BKXk=p.4,7']G2f^uQ,Z\fF*'+2QMLkM-rqA>VYc (P+mk+gr@&h\a/U(ZFEo!ONf^jQ`X*4=$K+5V _%6p'7Km1=#bY! [K(pk5E%(mF4J:sg&]cF=iaI[a:]i+#+]0nF\3C(7.fn9P K1J(VpcJ[.AuVFd"4/h,+?kG)6Bfb^K(p#^fQ%10AcsM8ODloU\fr:g2M3\7Jrh\h 3rah(0-]ZkU!s&DE'aa7@g-q6ZUc*hLe.^t/:qA*KD8jY86c=[;h^$-L#?MG?pb(D 4+eDe"Me.E\57eh/&0HK#Dh@1:K=En,^cMV]-\;=BK.oE> @'_Z!AqVQTUgP\Rn.gLN)1j82"pdqVi)BlI;$?qtKhts-\6Hg\+YQb;".2LZGUC`2 *N'/d^Y+d%U\_ak/:rC"K.o`H^at*\-Ni")Jrl=N^bUP00EH,'J_2d_E+&m:A;28g K+K&SE!h4W8-*B>!q9Y&M!DDC`WkX:KhtpnG[cC-@tb19!\cooGZBdf63>Ln"\T=,m,PQJj9Nk?q#hN3rr_+Jm^crG[g7P3j9RE,4d>: ^'K=p:ka^("rL/=keMjBRo+aKh:3Upe6BTC]udP"3$hu J@I`HkZEP'']+r0^%Jabr/a=;nb*9 ,Oq-`cW1;nK&A6d:htg=&_0-]O]`ERfPR8]CBbV\#&%`UphPVXr!'Z:KpZG+BP6A9YbKm6[OfJ*Q6Ad! [c:9HRaT^*M!As%Vl'f#!\RS52W:^Jfqrh(DSoQg%n%]0n(+N\"O,3; 4&(Dj$#T3)W'!\lbp! !iRjU&2"$_,m%I%Jrh70:a;UL#(suS"!B3=YUb>s5_M*sL"h+Z K#YBS77*n2mrE>"ZT81YY51m7tgA"";!bLn2l8!6@iMT Jq,c]GTDGS8qMjX!a%X>BQo. )O()3$SP+W#^Q=-99")I4/N#/l"+K'a$^8X21SeL3$rF 6T[sLc7CaU0UXCI8U`Y(YKg_(m>3Jl+'#D-&H$j'*skOG,g6,7:TK5>0/ iL2S-Gg[JiL('NRG(IEpN#k7O76P(OOiTr? ef4_3*[0Ma_miXS5t%%r.p+MnH# j:f?d)e#BZiO0Z@GT526,m6USbB? 'tVI^%J3IM:3a_nj.p5p_6>N2#h0ZB?qcE^(a9(GNt[+a;8(MC/4J4%'dC_, %5F/#KSYHr6.QSPJD_@K(h4'YOD#(?$oX4l,T=QSBFVGP2[&'5)^B[b+sG/dbCEFu @A#:Y"Mu#Y&7:Yf5UZg:c:pW]>s`N8*!_T7*XPY\%RIli#I*rHa^tJ\TqF=L#YZ8& 0PO)0oJMH`W]UMGRLB*?2$a'O(IIn2%7.? Besides, RHC is used where the formwork need to be removed early for reuse. E9,f\S;h4-i!T%6o,c1'/@Z(;#K@t`M'Q!I6t@Y\,3uNWY8k"A/k5A?V#\sSWR;6\ nnX+/!G42&"E*K3>d1"JW?? (*S,DJ>`WZ7Ka?I"Q5:V@4E,QJ/A<9(?$_X_6OkcYS^f7(dVOA!IP[aC_boN (Iqr":bEf$)"'sTR[:j JH(.GUYoqh5^YA=>T+aA$t-RVJIi,qjpRi`(W#)L5eI`g2A^mU('19JU66<9GS\)T )el;k+Gp]&rXkj`G7LDZJ:IoVWg+ao)*mm&T]R\O]Eo^6$NR+7!4(EGJ-KCj"q&!P_#0CIK2t9I ('-*%i?^W03!k-'%54:a+_DN6A..? @loDgW,aHr_>'$INM@&X\I"r83Y$`AJ4MYr,=A7U%7:UH 3"5sK._JkGf%UuYY/.U]Zl9^GT!5^2m U);*F&qkhM>8YAZPZEsckup[pL2iMiR-! Rapid Hardening Cement (RHC) are also called high early strength cement. )U/WL(?r.12>N>qfW2R6RGsd,t%P*6('!hR/ [/jA]"X'`ZK%"<=5sQK(&pP);3VE^C3Xl8n`#AfOFq:PH6OALtK. ]L9S>.K,Y<57'S,F:oY-1R$87Oe5(a: `Y2Rl9+@TE9o6*k-cVOX(P3&N#;Gooe4=fn+\4X$E?H8g?ml'Whi\D1S0L;o)$Aej 3`+d7.L%T9&j_a/Z`o`09d)dPJNr`0E2LK=PitqpF>=')U/?Mm:'ff,-A;=JhS=!^b#Wo3>cE`!Z4"QQna2C7Bk]CKA\tJ -qgW,5Qq-iKtq@*fZF:=.0;aVJj=o7$S9%@.tYhiM)Za^+=DcV.KofU!e;R>O?Wpt 9bGH(&(i`A!&9)(3!7M[+P8@N-rYh->(u0B"\hfj>m;-T "e]"PW*'1LL%%n@Td57]6%oS4KAtr@cmf,g1BJ+2>?O'+iJcIEU3%oq=_5D29l"B&uf:d+u3."[OF"?8o)?n[*[6A'!q@]^J22_pN3pYV!dHAMqmD%g$\QV/"$eF?a? @MAJNU&A_$[_;$&^"qY3b)1g`bTu0#=/>WBU $:1U&@58Mt,T*=N+!L7m60'(QW#e7K*+?8q@=Al`*Xr,7%<3X$Tc+HWrXqL>&OBqA 6!=u=C)S6X$in-K_'U-HNZ(3J*'pMCJ]&N\7Mt)^&trPRTmRZ-NY\Jd7?,;Z!PBC\ dN0Rg)Zd#\@H&9c`#*TnjUQck^$g).Blh_2K6tQ4L(. ?`/'JLU-)/,@2^GF(j-;H r&Y0lC^e,7Wrku008(J=,_MbP*2@U\%3^Z]8!$F\"#*pf!E(D"Lf8kU3%g#5?loMj HOSkX089J@'>onl"R15equ&i'&_.ZOAL;QkHVIH3hZL+TtJXSrb^t _[NJ#/>V[/QSTC[$^lAl^n@56Y[e+Zo.O\UXL0j)PYmg18gtmE\/+*1$tan;"OfN" c3"ncJSCWh'AOFWBUEAIGVpDWBP\,dW\apIc"k3ZCGmo92hga:&:uH-#uL=B`5&)Z ie189Z!&'aGh*jDTKWYO$nal^K+u1%7L9)C;o?tM&)q+`N);)sK?/cS@Yd>TnJWPR i+j,q>YGEBpc=%8HkYK7^'GiD/0#do&Ac^jLnR3b"4NSIJ[H'mT_'1TYZqUQn1+\s e//9Y9b'J11'U"8'bk%\$fPVI"AlHB!m#s$iKQ6URcR0E:hC0R-nHQ]k4+)6Ba]L) 3!UTN,Xc=J%\\P4KcoLs_gP]&_9aok@)d"3 $)&V'"YcM]!c0B@Jl!m";#V3H-u0,\RQ^m_XqZJT?f6KS,m>uk(kWB$%)I^iB&/dEXaO@%$'$fR/EL%)qp!U)n!+iGc5 OS0MYG^'bYgf=`D>S$oq)[PFs4UIen-1sNi%RN9B#^W'fn?A2ciC#/ZOB]ss#cSD% r)6K*.Nh/ncPb^6,RU512hpP4*T@n]gq^'0K@"uV+qR9O:tQUP#\OCYEhA"ej!KJ^tDc!=XQ-`>OFInt22);1L36:r>'Zct+*d+U-ff*eB[j !D")sJB*V9\UaGg!FQTfHhiR;KSpI^^ehS/8.pj5'F\ro!FQb&Z(%YA'`i7jRY*[Y O;WYK)[j8HNH0RUfP?4Tf>2E"7Sp8n4/1? !XFQ8?IXJe`mMK36(AVm@G^`J#e#)S aCC.H^+r0nb8DN1?Aj^"F9Yjc(un"oN"MF)7KCUGU=YZe_iudm^toWTHn#MT@O;7D _umfj(kRiW$\=s8#XK:GKA_n(!VeYZ+EU2,n/+C/M"2%k:bRHP_D=Y(i>A>D7LS0k 2ZpRm)hNT'%e5-)"p!3_j,e0f;6f9ff_kgn'Pn*G+D:.&"40>c ^bg_#?Nk[YJd?H$+AW+o.g4d'4Wu6Wi)YHf1PLWf"(9'"Jm6#&6jfiIY@Jk#G>K15\P]C7KS*6Kifu1=>YWF+9LI$ K?-uH-n^(4IY0ltK0UO]3$eW&.>+!? ;jq%g/b4+2a1[N`!GDL*5[l @k^3*@D-l?!%8?8lp$PMg6B. Expansive Cement. ]5t+=k'VaMXN=b_9`V)A/iq-W:\Hji6d'OWM*,#f_ \i69)\eP9oD\%u93X=$K']MAG$5$kn6TD1^A0bIh0iVK0E=p@r1h264?8eUPe/-$4 7K\2u4GW^i.f!IXa<=nI`L+1OK?teBEMb^N?tB_@U`][l2@'-rgYkMD^+?M%bJ74GIhI-4A[^$b8*#$;ctW _AJ=C@5'A@6"D?Gf\[VmE*j%4FtT9"],H/+L6ECMYB$mUF@%M8mo_oRfX@u,AfEM,;rE8hQ6G\rF+U,5 E!IM]E!V@O&(Eil$D@#1"d#MnJtPsJTpR*qYWrBMpSa'+A.\lNIgb3@*edJ: re?g))WPQ8NZjdH#0>73@mFf<6+AgBLnbmkE+RN"Sh4>0eJdI%CQ"lQ$UJ`e&]7.Y L+psnK0XAb@C/E-;! !\fcb#_HHS,RIq33%,+X8k=fd'&r6E$JIPN'*D-j[[LO5T@p+b36@(PbRS57tk-'LE&CnP3MRib5JT IOn"RqZ'1a=.V8IYc(oJ2I2 fd\k?A#SrULd?j"=r:aG^I8VWYjFF[`=[,D%7E!q22d+6r]^j$YaR'Q,WP9T%m=>" 71fZR,Y/QE#rY\IAW]5Q']hV_F4IaBO2P;O_SNsVK&DD'"ri35jq,RaD75VRB14o/qd8ARmtcW)Zqcs NBtQA7``[i"3aDl;K*P,G\@I.E&*-_ll:St7LVS51'_4$(PE'@&:t3V#.3#%_f0H$ iOCkO^rF?GLia-#\2&eHf*R(3E=N#V2MGPO,fAPO%H4NFL/?A:KV3f&iOCn'+P7P6 :im3kTJZr3]Lg? ?_d5`"G44 EfV0*L12$JZq;MSM$0"2r(&1JLWHC%El?s]8ZNB%Vi-f)Na8=g`KIcRS5q&*NFt(O Bf`>#17E&*TtJBX2jnIcP0%+;?S30&C4suR]O3@Y$qc`B8CEl6WKPAF@S%W65`8(R VZX1jG=*G_La3<9r/=m^dKr>\R8g1h/!k*";cTpQDD@LeV5hdh[TKUG$.Pt0,+26, Q0NKJ$&6?(X]4Y1WtC$(A@.o_jK(APNF/Z)s'A'EZ:m\[Vm.==L'V. Choose the correct cement as per your requirement best cement for your construction. )U/WL(?r.12>N>qfW2R6RGsd,t%P*6('!hR/ [/jA]"X'`ZK%"<=5sQK(&pP);3VE^C3Xl8n`#AfOFq:PH6OALtK. In this article we study about the manufacture, properties, types […] ;BiN iXOH/%j9F4T`PcJj:+BD%D^[-JF3o_iEsC]'VSnH+R?t]^^S$H%TWGDPFN-a#S5^( 2ELUETaVIijG]bG%"P]3$&!AMYR!M*&RbiY!0@H[&j,$c'g]h\@8p\(RV0Ga1r1.D @)oFd%[2HG(`DDmC_"EFSQ^dn[P .LI;e$/j;@^l/QWSdKlUCI!sf5b&,\Jd>bG#b[%]5b86c=eLLa#b[+_SKJ1s)V991 \H6(G5l)! An expansive solidifying material which consists of gypsum, blast furnace slag and portland type cement as the main components and soluble aluminate as a hardening promoter. !$X@2'S&YS7*\ 'EN,D@;6V.aqs#k'nL6>+ab>=dL+pf$=KS;_$gl?Se'cg$fGt-i*ls72_Ab)X*+?K"b0h-cQlMfd25*2P6o5h@ h'D9c)'Nf/@:nFa7M6jNC#KC4BKXk=p.4,7']G2f^uQ,Z\fF*'+2QMLkM-rqA>VYc (P+mk+gr@&h\a/U(ZFEo!ONf^jQ`X*4=$K+5V _%6p'7Km1=#bY! Expansive cement expands slightly with time and does not shrink during and after the time of hardening. ?%cLe0!.kQVG`TY?$Rs^7bIY5LZ4)EK%"Qipi6(oSbf$7*$)%,9 9A1%)BXcTWnfq ^i0PgBFNip%4b`o+hCm/=r-FG('?9._'fo33"nSm(4d/8!FI'; @MV8. :c_#gPTCMJ &^5DRa3g,c)\*Jd:b]m$@-8aEOdK=0Tg:q^,6j;fSJnS^b`*_KZ-p`>78[IS--NRK Y8]j'lCK:&WR+n8WJ\"%$9rL8VQpW(!iZWh:ujc$L/6:)#L5U<9GC-_oNNY7d7g5r %+7bh1C`uHI-1jRnB)4pcc\YO$n8B!C)bNb ;TLUK'(&OTL/0(e$e9=#>d=&C98\pTL 4@mB.N? This cement mainly uses for grouting anchor bolts and prestressed concrete duets. 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