1. Kusunga Madzi
Kusunga madzi mumatope opaka pulasitala ndikofunikira.Hydroxypropyl Methylcellulose (HPMC)ali ndi mphamvu yosungira madzi. Pambuyo powonjezera HPMC ku pulasitala matope, imatha kupanga makina osungira madzi mkati mwa matope kuti madzi asatengeke kapena kusungunuka mwachangu ndi maziko. Mwachitsanzo, popaka pulasitala pazitsulo zina zowuma, ngati palibe njira zabwino zosungira madzi, madzi mumatope amatengedwa mofulumira ndi maziko, zomwe zimapangitsa kuti simenti ikhale yosakwanira. Kukhalapo kwa HPMC kuli ngati "micro-reservoir". Malinga ndi maphunziro oyenera, pulasitala matope ndi mlingo woyenera wa HPMC akhoza kusunga chinyezi kwa maola angapo kapena masiku yaitali kuposa popanda HPMC pansi malo omwewo. Izi zimapatsa simenti nthawi yokwanira kuti igwirizane ndi hydration reaction, potero kumapangitsa mphamvu ndi kulimba kwa matope opaka pulasitala.
Kusungirako madzi moyenera kungathenso kupititsa patsogolo ntchito ya pulasitala matope. Ngati matope ataya madzi mofulumira kwambiri, amakhala ouma komanso ovuta kugwira ntchito, pamene HPMC ikhoza kusunga pulasitiki ya matope, kuti ogwira ntchito yomanga azikhala ndi nthawi yokwanira yokonza ndi kusalaza matope.
2. Kumamatira
HPMC akhoza kwambiri kumapangitsanso adhesion pakati pulasitala matope ndi m'munsi. Ili ndi zinthu zabwino zomangirira, zomwe zingapangitse matope kuti azitsatira bwino pansi monga makoma ndi konkire. Pochita ntchito, izi zimathandiza kupewa kugwetsa ndi kugwa kwa matope a pulasitala. Pamene HPMC mamolekyu kucheza ndi padziko m'munsi ndi particles mkati matope, maukonde omangika aumbike. Mwachitsanzo, popaka malo osalala a konkriti, matope a pulasitala omwe ali ndi HPMC amatha kumangika kwambiri pamwamba, kuwongolera kukhazikika kwa pulasitala yonse, ndikuwonetsetsa kuti ntchito yopaka pulasitala ndiyabwino.
Pazikhazikiko zazinthu zosiyanasiyana, HPMC imatha kugwira ntchito yabwino yolumikizirana. Kaya ndi zomangamanga, matabwa kapena zitsulo, bola ngati zili pamalo pomwe matope amafunikira, HPMC imatha kukonza magwiridwe antchito.
3. Kugwira ntchito
Limbikitsani magwiridwe antchito. Kuwonjezera kwa HPMC kumapangitsa kuti pulasitala ikhale yogwira ntchito kwambiri, ndipo matope amakhala ofewa komanso osalala, omwe ndi abwino kuti agwire ntchito yomanga. Ogwira ntchito yomanga amatha kufalitsa ndi kukwapula matope mosavuta pamene akugwiritsira ntchito, kuchepetsa zovuta ndi ntchito yomanga. Izi ndizofunikira makamaka pama projekiti akuluakulu opaka pulasitala, omwe amatha kupititsa patsogolo ntchito yomanga komanso yabwino.
Anti-sagging. Mukayika pulasitala pamalo oyima kapena opendekera, matope opaka amatha kugwa, ndiye kuti, matopewo amatsika pansi chifukwa cha mphamvu yokoka. HPMC imatha kukulitsa kukhuthala ndi kusasinthika kwa matope ndikukana kugwedezeka. Imapangitsa matope kukhalabe pamalo omwe adayikidwapo popanda kutsetsereka kapena kuyenda ndi kupunduka, kuwonetsetsa kusalala ndi kukongola kwa pulasitala. Mwachitsanzo, pomanga makoma akunja a nyumba, pulasitala matope ndi HPMC yowonjezeredwa imatha kutengera zofunikira zomanga makoma osunthika, ndipo zomanga sizingakhudzidwe ndi kugwa.
4. Mphamvu ndi kulimba
KuyambiraMtengo wa HPMCkumapangitsa kuti simenti ikhale ndi madzi okwanira, mphamvu ya matope opaka imayenda bwino. Kukwera kwa simenti ya hydration, zinthu zambiri za hydration zimapangidwira. Zinthu za hydration izi zimalumikizidwa kuti zipangike cholimba, potero kuwongolera zisonyezo zamphamvu zamatope, monga kupsinjika ndi kusinthasintha kwamphamvu. M'kupita kwa nthawi, izi zimathandizanso kuti pulasitala ikhale yolimba.
Pankhani yakukhazikika, HPMC imathanso kuchitapo kanthu pakukana ming'alu. Amachepetsa kuchitika kwa kuyanika ming'alu ya shrinkage chifukwa cha chinyezi chosagwirizana ndi kusunga kugawa kofanana kwa chinyezi mumatope. Panthawi imodzimodziyo, mphamvu yosungiramo madzi ya HPMC imapangitsa kuti matope asamawonongeke ndi kuwonongeka kwa zinthu zachilengedwe panthawi yogwiritsidwa ntchito kwa nthawi yaitali, monga kupewa kulowerera kwambiri kwa chinyezi, kuchepetsa kuwonongeka kwa matope omwe amayamba chifukwa cha kuzizira kwa madzi, etc., potero kuwonjezera moyo utumiki wa pulasitala matope.
Nthawi yotumiza: Dec-13-2024