Kwemazana emakore, masonry uye plaster mavhu akashandiswa kugadzira zvivakwa zvakanaka uye zvinogara kwenguva refu. Aya madhaka anogadzirwa kubva musanganiswa wesamende, jecha, mvura uye zvimwe zvinowedzera. Hydroxypropyl methylcellulose (HPMC) chimwe chekuwedzera chakadaro.
HPMC, inozivikanwawo se hypromellose, is a modified cellulose ether inotorwa kubva muhuni pulp uye donje faibha. Icho chinhu chakasiyana-siyana chinoshandiswa mumaindasitiri akasiyana siyana, anosanganisira ekuvaka, emishonga, chikafu uye zvigadzirwa zvekuchengeta munhu. Muchikamu chekuvaka, HPMC inoshandiswa seyakakora, bhainda, inochengetedza mvura mumiriri uye rheology modifier mukuumbwa kwedhaka.
Basa reHPMC mune masonry plastering dhaka
1. Kudzora kunoenderana
Kuenderana kwedhaka kwakakosha pakushandiswa kwakakodzera uye kubatana. HPMC inoshandiswa kuchengetedza kuwirirana kunodiwa kwemasonry uye plaster mortars. Inoita semukobvu, ichidzivirira dhaka kuti isanyanya kunyorova kana kukora, zvichibvumira kushandiswa kwakatsetseka.
2. Kuchengeta mvura
Mvura yakakosha mukuita hydration ye simende, chinhu chakakosha chekugadzira masonry nedhaka rekupurasita. Zvisinei, mvura yakawandisa inogona kukonzera kupera uye kuputika. HPMC inobatsira kuchengetedza hunyoro mudhaka, ichibvumira hydration chaiyo yesimende uku ichideredza kurasikirwa kwemvura kuburikidza nekubuda. Izvi zvinoguma nekuvandudzwa kwekushanda, kunamatira zviri nani uye kuwedzera simba.
3. Ronga nguva
Nguva yekugadzika yedhaka inokanganisa kusimba uye kunamatira kwechimiro chekupedzisira. HPMC inogona kushandiswa kudzora nguva yekumisikidza yemasonry uye plastering madhaka. Inoshanda seretarder, inoderedza hydration process ye simenti. Izvi zvinoguma nekurebesa kushanda nguva uye nekuvandudza bonding performance.
4. Simba rekunamatira
Kusimba kwechisungo chemateki kwakakosha pakusimba kwemasonry uye plaster zvimiro. HPMC inokwidziridza chisungo chesimba pakati pedhaka uye substrate nekupa kunamira kuri nani uye nekuvandudza kushanda. Izvi zvinokonzera chimiro chakasimba uye chakasimba.
Zvakanakira HPMC mune masonry uye plastering madhaka
1. Kuvandudza kushanda
HPMC inobatsira kuvandudza kushanda kwemasonry uye plastering madhaka. Iko kukora uye kuchengetedza mvura zvivakwa zveHPMC zvinoita kuti kushandisa dhaka kuve nyore uye kuve nyore. Izvi zvinowedzera kushanda kwese uye kukurumidza kwekuvaka.
2. Deredza shrinkage uye kuputika
Shrinkage uye kutsemuka ndiwo matambudziko akajairika ane echinyakare masonry uye plaster dhaka. Iyo inochengetedza mvura yeHPMC inoderedza kubuda uye kudzivirira kupera uye kuputika. Izvi zvinoita kuti pave nechimiro chakasimba uye chinogara kwenguva refu.
3. Wedzera kusimba
Kuwedzerwa kweHPMC kune masonry uye kupurasita madhaka kunowedzera kusimba kweiyo yekupedzisira chimiro. HPMC yakavandudza chisungo chesimba, processability uye kuchengetwa kwemvura, zvichikonzera chimiro chakasimba, chinogara kwenguva refu.
4. Kuita mari yepamusoro
HPMC ndeye inodhura-inoshanda yekuwedzera inopa akawanda mabhenefiti mukugadzira masonry uye plastering dhaka maumbirwo. Zvimiro zvaro zvinoderedza njodzi yezvinetso zvakadai se shrinkage uye kuputika, nokudaro kuderedza mari yekuchengetedza mukati mehupenyu hwechimiro.
mukupedzisa
HPMC inoita basa rakakosha mukuvandudza mashandiro nekuita kwemasonry uye kupurasita madhaka. Yayo kuenderana kutonga, kuchengetedza mvura, kuseta nguva yekutonga uye bond simba zvivakwa zvinopa akawanda mabhenefiti kuindasitiri yekuvaka. Iko kushandiswa kweHPMC kunoguma nekuvandudzwa kwekushanda, kuderedzwa shrinkage uye kutsemuka, kuwedzera kusimba uye inodhura-inoshanda kuvaka. Iko kubatanidzwa kweHPMC mune masonry uye kupa dhaka inhanho yakanaka kune yakawedzera kushanda, inoenderera uye yakasimba maitiro ekuvaka.
Nguva yekutumira: Oct-08-2023