Liphello tsa HPMC le CMC ho Ts'ebetso ea Konkreite

Hydroxypropyl methylcellulose (HPMC) le carboxymethyl cellulose (CMC) ka bobeli ke li-ether tsa cellulose tse sebelisoang hangata e le li-additives mefuteng ea konkreite. Li sebeletsa merero e fapaneng mme li ka ba le litlamorao tse kholo ts'ebetsong ea konkreite. Mona ke litlamorao tsa HPMC le CMC mabapi le ts'ebetso ea konkreite:

1. Poloko ea Metsi: Ka bobeli HPMC le CMC ke lisebelisoa tse sebetsang hantle tsa ho boloka metsi. Li ntlafatsa ts'ebetso le botsitso ba konkreite e ncha ka ho liehisa mouoane oa metsi nakong ea ho beha le ho folisa. Ho boloka metsi ka nako e telele ho thusa ho etsa bonnete ba hore ho na le metsi a lekaneng a likaroloana tsa samente, ho khothalletsa ntlafatso e nepahetseng ea matla le ho fokotsa kotsi ea ho senyeha ha shrinkage.
2. Bokhoni ba ho sebetsa: HPMC le CMC li sebetsa joalo ka li-rheology modifiers, li matlafatsa ts'ebetso le phallo ea metsoako ea konkreite. Ba ntlafatsa momahano le lubricity ea motsoako, ho etsa hore ho be bonolo ho beha, ho kopanya le ho qeta. Ts'ebetso ena e ntlafetseng e thusa ho kopana hamonate le ho fokotsa monyetla oa hore ho be le likheo kapa mahe a linotši ka har'a konkreite e thata.
3. Adhesion: HPMC le CMC li ntlafatsa ho khomarela konkreite ho li-substrates tse fapaneng, ho kenyeletsoa li-aggregates, likhoele tse matlafatsang, le bokaholimo ba sebopeho. Li matlafatsa maqhama pakeng tsa lisebelisoa tsa samente le li-aggregates, ho fokotsa kotsi ea ho tlosoa ha delamination kapa debonding. Ho khomarela hona ho eketsehileng ho tlatsetsa ho tšoarella ka kakaretso le botšepehi ba sebopeho sa konkreite.
4. Ho Kena ka Moea: HPMC le CMC li ka sebetsa joalo ka liente tse kenyang moea ha li sebelisoa metsoakong ea konkreite. Li thusa ho kenya lipululana tsa moea ka har'a motsoako, tse ntlafatsang ho se khone ho qhibiliha le ho tšoarella nako e telele ka ho amohela liphetoho tsa molumo tse bakoang ke ho fetoha ha mocheso. Ho kenella ka nepo ha moea ho ka thibela tšenyo e bakoang ke ho phahama ha serame le ho phahama ha maemo a leholimo a batang.
5. Nako ea ho beha: HPMC le CMC li ka susumetsa nako ea ho beha metsoako ea konkreite. Ka ho liehisa karabelo ea hydration ea samente, ba ka eketsa nako ea pele le ea ho qetela ea ho beha, ho fana ka nako e eketsehileng ea ho beha, ho kopanya, le ho qeta. Leha ho le joalo, tekanyo e feteletseng kapa metsoako e itseng e ka lebisa nako e telele ea ho beha, e hlokang hore ho lokisoe ka hloko ho finyella litlhoko tsa morero.
6. Crack Resistance: HPMC le CMC li kenya letsoho ho hanyetseng ha konkreite e thata ka ho matlafatsa momahano, ductility le ho tiea ha eona. Li thusa ho fokotsa ho thehoa ha mapetsong a shrinkage le ho fokotsa ho ata ha mapetsong a teng, haholo-holo libakeng tse thibetsoeng kapa tse nang le khatello e phahameng ea maikutlo. Sena se ntlafetseng sa ho hanyetsa ha crack se matlafatsa ho tšoarella ha nako e telele le ho sebetsa ha mehaho ea konkreite.
7. Tšebelisano: HPMC le CMC li tsamaisana le mefuta e mengata e fapaneng ea li-admixtures le li-additives, tse lumellang likhetho tse fapaneng tsa ho theha. Li ka sebelisoa hammoho le li-admixtures tse ling tse kang li-superplasticizers, li-accelerator, li-retarders, le lisebelisoa tsa tlatsetso tsa cementitious ho finyella lipakane tse itseng tsa ts'ebetso ha li ntse li boloka ho lumellana ka kakaretso le botsitso.

HPMC le CMC li bapala karolo ea bohlokoa ho ntlafatseng ts'ebetso ea konkreite ka ho ntlafatsa ho bolokoa ha metsi, ho sebetsa, ho khomarela, ho kenella moeeng, ho beha nako, ho hanyetsa lets'oao. Mehaho ea bona e feto-fetohang e ba etsa litlatsetso tsa bohlokoa bakeng sa ho ntlafatsa metsoako ea konkreite le ho fihlela litšobotsi tse lakatsehang tsa ts'ebetso lits'ebetsong tse fapaneng tsa kaho.