Hydroxypropyl methylcellulose (hpmc)ndi ma cellulose ofunika kwambiri omwe amagwiritsidwa ntchito kwambiri pomanga, makamaka m'matavala a simenti, zida zama gypsum ndi zokutira. HPMC imachita mbali yofunika kwambiri pokonza zinthu za matope, kuphatikizapo kukonza malo ake oteteza madzi.
1. Sinthani madzi osungira matope
Zina mwazinthu zofunikira kwambiri za HPMC ndi njira yake yabwino yosungitsira madzi. Kuonjezera HPMC kwa matope amatha kuchepetsa kwambiri kuchuluka kwa madzi otayika m'matope. Mayendedwe enieni ndi awa:
Tiyerekezere kuti simenti ya simenting hydraction
Imalepheretsa mapangidwe a ming'alu: Kutayika kwa madzi kumatha kuyambitsa matope ndikuyambitsa ming'alu, motero amachepetsa katundu wamadzi.HpmcMutha kuchepetsa kuchepa kwa madzi ndikuchepetsa ming'alu yoyambitsidwa ndi shrinkage.
Kusintha kwa magwiridwe antchito kwamadzi kumapangitsa kapangidwe kazinthu zamkati, kumachepetsa kapangidwe kake, ndikuchepetsa mphamvu ya matope, pomwepo amalimbikitsa mapangidwe ake oyendetsa madzi.
2. Sinthani kugwirira ntchito matope
Makhalidwe a ViscCon a HPMC amathandizira kuti zisudzi zizikhala za matope, potero zimawongolera kugwirira ntchito kwake:
Kuchepetsa magazi: hpmc amatha kufalitsa madzi mokwanira, kulola madzi kuti agawidwe bwino m'malo mwa matope ndi kuchepetsa ma pores oyambitsidwa ndi kupatukana kwamadzi.
Sinthani chotsatsa cha matope: hpmc imathandizira mphamvu yolumikizirana pakati pa matope ndi zida zapansi, ndikuloleza matope kuti azitha kunyowa kwambiri pakati pa zida zapamwamba ndi matope .
Kupititsa patsogolo khalidwe la zomanga mwachindunji kumakhudzanso matope. Wovala yunifolomu komanso wophimba matope wophimba bwino amatha kupewa kulowerera chinyezi.
3. Pangani filimu yoteteza pansi
HPMC ili ndi mawonekedwe opanga mafilimu ndipo imatha kupanga filimu yotsekemera komanso yowonda pansi pa matope:
Kuchepetsa madzi osinthika: Ntchito yomanga ikamalizidwa, hpmc imapanga filimu yoteteza pamtandawo kuti muchepetse kunyowa mkati mwa chinyezi mkati mwake.
Black chinyontho cholowera: The Hpmc wosanjikiza utatha filimuyo ali ndi chimbudzi china ndipo chitha kugwiritsidwa ntchito ngati cholepheretsa kuti chinyontho cha matope.
Chitetezo chapadzikoli chimapereka chitetezo chowonjezera cha matope a matope.
4. Chepetsani chinsinsi cha matope
HPMC imatha kukonza bwino matope a matope. Mphamvu yake yochita izi ili motere:
Kudzaza mamolekyu a HPMC kumatha kulowa mu matope mwa matope ndikudzaza ma pores, potero kuchepetsa njira zonyowa.
Kupititsa patsogolo kuphatikiza kwa zinthu hydration: Kudzera mu kusungidwa kwamadzi, hpmc kumalimbitsa fanizo ndi kuphatikiza zinthu za simenti hydrate ndikuchepetsa chiwerengero cha ma pores akuluakulu mu matope.
Kuchepetsa matope sikuti kumangothandizanso kuchita zamadzi, komanso kumathandizanso kukhazikika kwa matope.
5. Kupititsa patsogolo chisanu ndi kukhazikika
Kulowera kwamadzi kumapangitsa matope kuti awonongeke chifukwa cha chisanu ndikuchira m'malo otsika kutentha. Mphamvu yopanda madzi ya HPMC imatha kuchepetsa kulowa kwamadzi ndikuchepetsa kuwonongeka kwa matope chifukwa cha matope a Freeze-Thaw:
Pewani chinyezi: Kuchepetsa chinyezi kulowa mkati mwa matope ndikuchepetsa chisanu kukhumudwa.
Moyo Wowonjezera: Mwa kuchepetsa kuukira kwamadzi ndi kuwonongeka kwa Thaw, HPMC kumawonjezera kukhazikika kwa matope.
HPMC imathandizira matope okhudzana ndi matope motsatira izi: Kuwongolera kusungidwa kwamadzi, kulolera kugwiritsidwa ntchito, ndikupanga filimu yoteteza, kuwongolera chisanu. Mphamvu ya mankhwalawa mwa zinthu izi zimapangitsa matope kuti awonetsetse bwino kusinthasintha kwa njira zothandiza. Kaya matope othira madzi, mativa okha kapena ma tateni otsatsa, hpmc amagwira ntchito yofunika kwambiri.
Pamapulogalamu othandiza, kuchuluka kwa hpmc kuwonjezeredwa kuti akonzekere molingana ndi zofunikira zina kuti zitsimikizire kuti sizingangochita bwino zamadzi, komanso osagwirizana ndi ziwonetsero zina za matope. Kugwiritsa ntchito bwino ntchito kwa HPMC mosamalitsa, magwiridwe antchito omanga kungakhale bwino komanso chitetezo chodalirika chomwe chingapangitse ntchito zomanga.
Post Nthawi: Nov-23-2024