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 sadzatha kupitiriza hydration, motero zimakhudza mtsogolo 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.

Limbikitsani ntchito yomanga matope atsopano:

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. , ❖ kuyanika wosanjikiza kungalepheretse coalescation zosasinthika pakati polima particles kuti pakhale kondomu kwenikweni pakati particles, particles polima akhoza wogawana omwazika mu kulemera kwa simenti slurry, Izi omwazika particles, ngati mayendedwe mpira, akhoza kupanga matope zigawo zikuluzikulu kuyenda padera ndi kusintha workability 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 ma thovu ang'onoang'ono kumathandizanso kuti pakhale kusakanikirana kuti kukhale kothandiza kwambiri.

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 matope a brittleness amachepetsedwa kwambiri, kulimba kumakhala bwino 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 matope. yafupika. Kusinthasintha kwamatope kumawonjezera malire amtundu wa matope pamene awonongeka, ndipo mphamvu yofunikira ndi chilema ndi kufalitsa 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 okhwima. Pali pores pamwamba pa polima filimu anapanga padziko matope particles, ndi pores amadzazidwa 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 kwa matope.