Dry-mix mortar (DMM) ndi nyumba yopangira ufa yomwe imapangidwa ndi kuyanika ndi kuphwanya simenti, gypsum, laimu, etc. Ili ndi ubwino wa kusakaniza kosavuta, zomangamanga zosavuta, ndi khalidwe lokhazikika, ndipo zimagwiritsidwa ntchito kwambiri pa zomangamanga, zomangamanga ndi zina. Zigawo zazikulu za matope osakaniza owuma zimaphatikizapo zida zoyambira, ma fillers, admixtures ndi zowonjezera. Mwa iwo,cellulose ether, monga chowonjezera chofunikira, chimagwira ntchito yofunika kwambiri pakuwongolera rheology ndikuwongolera ntchito yomanga.
1. Zida zoyambira
Zomwe zili m'munsi ndi gawo lalikulu la matope osakaniza owuma, nthawi zambiri kuphatikizapo simenti, gypsum, laimu, ndi zina zotero.
Simenti: Ndi chimodzi mwazinthu zomwe zimagwiritsidwa ntchito kwambiri mumatope osakaniza, nthawi zambiri simenti wamba kapena simenti yosinthidwa. Ubwino wa simenti umatsimikizira mphamvu ya matope. Magulu amphamvu odziwika bwino ndi 32.5, 42.5, ndi zina.
Gypsum: yomwe imagwiritsidwa ntchito popanga matope a pulasitala ndi matope apadera omangira. Itha kupanga coagulation bwino komanso kuumitsa katundu panthawi ya hydration ndikuwongolera magwiridwe antchito a matope.
Laimu: Nthawi zambiri amagwiritsidwa ntchito popanga matope apadera, monga laimu matope. Kugwiritsiridwa ntchito kwa laimu kungapangitse kuti madzi asungidwe mumatope ndikuwonjezera kukana kwake kwa chisanu.
2. Wodzaza
Filler amatanthauza ufa wa inorganic womwe umagwiritsidwa ntchito posintha mawonekedwe a matope, nthawi zambiri kuphatikiza mchenga wabwino, ufa wa quartz, perlite yowonjezera, ceramsite yowonjezera, ndi zina zotere. Zodzaza izi nthawi zambiri zimapezedwa kudzera munjira yowunikira ndi kukula kwa tinthu ting'onoting'ono kuti zitsimikizire ntchito yomanga matope. Ntchito ya filler ndi kupereka voliyumu matope ndi kulamulira fluidity ndi adhesion.
Mchenga wabwino: womwe umagwiritsidwa ntchito mumatope wamba wouma, wokhala ndi tinthu tating'ono, nthawi zambiri pansi pa 0.5mm.
Quartz ufa: wosalala kwambiri, woyenera matope omwe amafunikira mphamvu zambiri komanso kulimba.
Perlite yowonjezera / ceramsite yowonjezera: yomwe imagwiritsidwa ntchito kwambiri mumatope opepuka, okhala ndi mawu abwino otsekera komanso kutentha.
3. Zosakaniza
Admixtures ndi mankhwala zinthu kuti patsogolo ntchito youma-kusakaniza matope, makamaka kuphatikizapo madzi posungira wothandizila, retarders, accelerators, antifreeze wothandizira, etc. Admixtures akhoza kusintha atakhala nthawi, fluidity, posungira madzi, etc. matope, ndi zina patsogolo ntchito yomanga ndi ntchito zotsatira za matope.
Madzi osungira madzi: amagwiritsidwa ntchito popititsa patsogolo kusunga madzi mumatope ndikuletsa madzi kusungunuka mofulumira kwambiri, motero amakulitsa nthawi yomanga matope, omwe ndi ofunika kwambiri, makamaka kutentha kwambiri kapena malo owuma. Zomwe zimagwiritsidwa ntchito posungira madzi zimaphatikizapo ma polima.
Ma retarders: amatha kuchedwetsa nthawi yoyika matope, oyenera malo omangira kutentha kwambiri kuti matope asamauma msanga pomanga.
Accelerators: imathandizira kuuma kwa matope, makamaka m'malo otsika otentha, omwe nthawi zambiri amagwiritsidwa ntchito kuti apititse patsogolo mphamvu ya simenti ndikusintha mphamvu ya matope.
Antifreeze: amagwiritsidwa ntchito pozizira kwambiri kuti matope asathe mphamvu chifukwa cha kuzizira.
4. Zowonjezera
Zowonjezera zimatanthawuza za mankhwala kapena zinthu zachilengedwe zomwe zimagwiritsidwa ntchito pokonza zinthu zina zapadera za matope osakaniza owuma, nthawi zambiri kuphatikizapo cellulose ether, thickener, dispersant, etc.
Udindo wa cellulose ether
Ma cellulose ether ndi gulu la ma polima opangidwa kuchokera ku cellulose kudzera pakusintha kwamankhwala, omwe amagwiritsidwa ntchito kwambiri pomanga, zokutira, mankhwala a tsiku ndi tsiku ndi magawo ena. Mu matope osakaniza owuma, ntchito ya cellulose ether imawonetsedwa makamaka muzinthu izi:
Konzani kasungidwe ka madzi mumatope
Ma cellulose ether amatha kuwonjezera kusungidwa kwamadzi mumatope ndikuchepetsa kutuluka kwamadzi mwachangu. Mapangidwe ake a mamolekyu ali ndi magulu a hydrophilic, omwe amatha kupanga mphamvu zomangira zolimba ndi mamolekyu amadzi, potero amasunga matope onyezimira ndikupewa ming'alu kapena zovuta zomanga chifukwa cha kutaya madzi mofulumira.
Kupititsa patsogolo rheology ya matope
Ma cellulose ether amatha kusintha kuchuluka kwa madzi ndi kumamatira kwa matope, kupangitsa kuti matope azikhala ofananirako komanso osavuta kugwiritsa ntchito pomanga. Imawonjezera kukhuthala kwa matope kudzera mukukhuthala, kumawonjezera kudana ndi tsankho, kumalepheretsa matope kuti asasunthike pakagwiritsidwe ntchito, ndikuwonetsetsa kuti matope amamanga.
Wonjezerani kumamatira kwa matope
Kanema wopangidwa ndi mapadi etero mu matope ali ndi zomatira zabwino, zomwe zimathandiza kupititsa patsogolo mphamvu zomangira pakati pa matope ndi gawo lapansi, makamaka pomanga ❖ kuyanika ndi matayala, zimatha kuwongolera magwiridwe antchito ndikuletsa kugwa.
Limbikitsani kukana kwa crack
Kugwiritsiridwa ntchito kwa cellulose ether kumathandiza kupititsa patsogolo kukana kwa matope a matope, makamaka pakuyanika, cellulose ether imatha kuchepetsa ming'alu yomwe imayamba chifukwa cha shrinkage powonjezera kulimba ndi mphamvu zamanjenje zamatope.
Kupititsa patsogolo ntchito yomanga matope
Cellulose etherimatha kusintha bwino nthawi yomanga matope, kutalikitsa nthawi yotseguka, ndikupangitsa kuti ikhale yogwira ntchito bwino pakutentha kapena kowuma. Kuphatikiza apo, imathanso kuwongolera kusalala ndi magwiridwe antchito amatope ndikuwongolera ntchito yomanga.
Monga zomangira zogwira mtima komanso zoteteza chilengedwe, kumveka kwa kapangidwe kake ndi kuchuluka kwake kumatsimikizira momwe ntchito yake ikuyendera. Monga chowonjezera chofunikira, ether ya cellulose imatha kupititsa patsogolo matope osakaniza owuma, monga kusunga madzi, rheology, ndi kumamatira, ndipo imagwira ntchito yofunikira pakuwongolera ntchito yomanga komanso mtundu wamatope. Pamene makampani omangamanga akupitirizabe kuonjezera zofunikira pa ntchito zakuthupi, kugwiritsa ntchito cellulose ether ndi zina zowonjezera zowonjezera mumatope osakaniza owuma zidzakhala zowonjezereka, zomwe zimapereka malo ochulukirapo kuti chitukuko cha mafakitale chipite patsogolo.
Nthawi yotumiza: Apr-05-2025