Pangani matope atsopano okhala ndi madzi osungira bwino:

Simenti hydration ndondomeko ndi pang'onopang'ono ndondomeko, monga simenti sangathe kukhudzana ndi madzi kwa nthawi yaitali, simenti sangathe kupitiriza hydration, motero zimakhudza pambuyo mphamvu chitukuko.Mtondo wosinthidwa wa polima uli ndi mphamvu zambiri kuposa mtengo wamba, chifukwa chake ndi chakutiredispersible polima ufakumawonjezera mphamvu yosungira madzi, kotero kuti mphamvu ya simenti pambuyo pake imawonjezeka.Kachiwiri, mapangidwe ang'onoang'ono polima gawo mu matope, kusintha chomangira mphamvu.

Kupititsa patsogolo luso la zomangamanga zatsopano zamatope:

Pambuyo kuwonjezera redispersible polima ufa mu youma wosanganiza matope, workability wa matope kwambiri bwino, amene makamaka chifukwa cha zifukwa zotsatirazi: A. Pamene kusakaniza redispersible polima ufa ndi matope, chifukwa redispersible polima ufa particles wokutidwa ndi madzi sungunuka zoteteza colloid. , ndi ❖ kuyanika wosanjikiza kungalepheretse sizingasinthe coalescation pakati polima particles kuti pali kondomu pakati particles, polima particles akhoza wogawana omwazika mu kulemera kwa simenti slurry, Izi omwazika particles, ngati mayendedwe a mpira, akhoza kupanga matope zigawo kuyenda padera ndi kusintha ntchito ya matope.B. redispersible polima ufa wokha uli ndi ena mpweya oyambitsa zotsatira, redispersible polima ufa pa mpweya kupatsidwa mphamvu zotsatira ayenera kupereka matope compressibility, kuti matope ndi wabwino yomanga workability.Kuphatikiza apo, kukhalapo kwa thovu yaying'ono kumathandizanso kuti pakhale kusakanikirana kuti kukhale kogwira ntchito bwino.

Redispersible polima ufakupititsa patsogolo kusinthasintha ndi kukana kwa matope:

Pambuyoredispersible polima ufakuwonjezeredwa ku matope, chiŵerengero cha kuponderezedwa kwa matope ndi chiŵerengero cha matope chimakhala bwino kwambiri, zomwe zimasonyeza kuti kuphulika kwamatope kumachepetsedwa kwambiri, kulimba kumakula kwambiri, kotero kuti kukana kwa matope kumakhala bwino.redispersible polima ufamu matope dehydrating filimu, osati kudzaza zofooka ndi pores mu simenti mwala, komanso kuti cementhydration mankhwala ndi akaphatikiza gluing kupanga polima interpenetrating maukonde, chifukwa zotanuka modulus wa polima filimu ndi wotsika kuposa matope, kotero brittleness wa matope. yafupika.Kusinthasintha kwamatope kumawonjezera malire amtundu wa matope pamene awonongeka, ndipo mphamvu yofunikira ndi chilema ndi kufalikira kwa micro-crack imatengeka kwambiri, kotero kuti matope amatha kupirira kupsinjika kwakukulu asanalephere.Kuphatikiza apo, filimu ya polima imakhala ndi njira yodzitambasula, ndipo filimu ya polima imapanga mafupa okhwima mumatope a simenti a hydrated, omwe ali ndi zotsatira zosunthika za olowa, kuti atsimikizire kusungunuka ndi kulimba kwa mafupa olimba.Pali pores pamwamba pa polima filimu anapanga padziko matope particles, ndi pores wodzazidwa ndi matope, amene amachepetsa nkhawa ndende ndi umatulutsa mpumulo popanda kuwonongeka pansi zochita za kunja mphamvu.Kukhalapo kwa kusinthasintha kwakukulu komanso malo okwera kwambiri a polima kumapangitsanso kusinthasintha ndi kusungunuka kwamatope.