Madontho odzipangira okha amadalira kulemera kwawo kuti apange maziko osasunthika, osalala komanso olimba pa gawo lapansi, kulola kuti zipangizo zina zikhazikike kapena kumangirizidwa, ndikukwaniritsa malo akuluakulu, ogwira ntchito yomanga. Choncho, madzimadzi ambiri ndi khalidwe lofunika kwambiri la matope odzipangira okha. Iyeneranso kukhala ndi mlingo wina wa kusunga madzi ndi mphamvu zomangirira, palibe percolation ndi tsankho, ndi kukhala adiabatic ndi otsika kutentha.
General kudzikonda kusanja matope amafuna fluidity wabwino, koma kwenikweni simenti slurry otaya nthawi zambiri yekha 10-12cm; cellulose ether ndiye chowonjezera chokonzekera chosakaniza matope, ngakhale kuti ndalamazo ndizochepa kwambiri, zimatha kupititsa patsogolo ntchito yamatope, yomwe ingapangitse kuti matope asagwirizane, kugwira ntchito, kugwirizanitsa ntchito ndi kusunga madzi. Lili ndi gawo lofunika kwambiri pamunda wamatope osakaniza okonzeka.
1 Madzi
Cellulose ether imakhudza kwambiri kusungidwa kwa madzi, kusasinthasintha komanso kugwira ntchito kwa matope. Makamaka ngati matope odzipangira okha, fluidity ndi chimodzi mwa zizindikiro zazikulu zowunikira ntchito yodzipangira. The fluidity wa matope akhoza kusinthidwa ndi kusintha kuchuluka kwa cellulose ether pansi pa maziko a kuonetsetsa zikuchokera yachibadwa matope. Kuchulukirachulukira kudzachepetsa kuchuluka kwa matope, motero, kuchuluka kwa cellulose ether kuyenera kuyendetsedwa mosiyanasiyana.
2 Kusunga madzi
Madzi osungira matope ndi chizindikiro chofunikira cha kukhazikika kwa zigawo zamkati za matope a simenti. Pofuna kuti zinthu za gel osakaniza zikhale hydrated, kuchuluka kwa cellulose ether kungagwiritsidwe ntchito kwa nthawi yayitali kuti madzi asungidwe mumatope. Nthawi zambiri, kuchuluka kwa cellulose ether kumawonjezeka, kusungidwa kwamadzi mumatope kumawonjezekanso. Kuonjezera apo, kukhuthala kwa cellulose ether kumakhudza kwambiri kusunga madzi kwa matope; kumtunda kwa viscosity, ndi bwino kusunga madzi.
3 Kukhazikitsa nthawi
Ma cellulose ether ali ndi chotchinga pamatope. Ndi kuchuluka kwa cellulose ether, nthawi yoyika matope idzatalikitsidwa. Ndipo ndi kuchuluka kwa cellulose ether, zoyambira za hydration hysteresis zotsatira za simenti ndizodziwikiratu.
4 Flexural mphamvu ndi compressive mphamvu
Nthawi zambiri, mphamvu ndi imodzi mwazofunikira zowunikira zosakaniza za cementitious cementitious machiritso. The compressive mphamvu ndi flexural mphamvu ya matope adzakhala yafupika pamene zili mapadi ether kuchuluka.
Nthawi yotumiza: Jul-01-2022