Ho boloka Metsi a Hydroxypropylmethylcellulose ka Masonry Mortar

Hydroxypropyl methylcellulose (HPMC) hangata e sebelisoa mefuteng ea seretse sa masonry e le sesebelisoa sa ho boloka metsi. Ho boloka metsi ke thepa ea bohlokoa ka har'a seretse, kaha e susumetsa ts'ebetso, hydration kinetics, le matla a bond. Mona ke kamoo HPMC e kenyang letsoho ho bolokeng metsi seretseng sa masonry:

1. Bokhoni ba ho Tlama Metsi:

HPMC ke hydrophilic polymer e nang le kamano e phahameng bakeng sa limolek'hule tsa metsi. Ha e eketsoa ho metsoako ea seretse, limolek'hule tsa HPMC li ka monya le ho tlama metsi ka ho kopanya hydrogen le likamano tse ling. Bokhoni bona ba ho tlama metsi bo thusa ho boloka mongobo ka har'a matrix a seretse, ho thibela ho tsoa mouoane ho feteletseng le ho boloka maemo a nepahetseng a hydration bakeng sa lisebelisoa tsa samente.

2. Ho thehoa ha Hydrogel:

HPMC e na le bokhoni ba ho theha hydrogel ea viscous ha e qhalakane ka metsing. Ha ho etsoa seretse, limolek'hule tsa HPMC li hasana ka ho lekana ka metsing a tsoakaneng, li etsa sebopeho se kang gel se tšoarang metsi ka har'a marang-rang a eona. Hydrogel ena e sebetsa e le letamo la mongobo, e lokolla metsi butle ha nako e ntse e ea ho likaroloana tsa samente nakong ea hydration. Ka lebaka leo, HPMC e ntlafatsa ts'ebetso ea hydration le ho lelefatsa ho fumaneha ha metsi bakeng sa karabelo ea samente ea hydration, e lebisang ntlafatsong ea matla le ho tšoarella ha seretse.

3. Ts'ebetso e Ntlafetseng:

Ho boloka metsi ho fanoang ke HPMC ho ntlafatsa ho sebetsa ha seretse sa masonry ka ho boloka mongobo o tsitsitseng nakong eohle ea ho kopanya, ho beha le ho qeta. Ho ba teng ha HPMC ho thibela ho lahleheloa ke metsi ka potlako ho tloha seretseng, ho fella ka motsoako o boreleli le o momahaneng o bonolo ho o tšoara le ho o laola. Ts'ebetso ena e ntlafetseng e thusa ho kopanya hantle, ho khomarela le ho kopanya seretse ka har'a lihlopha tsa masonry, ho netefatsa ho tlatsoa ka mokhoa o nepahetseng ha manonyeletso le ho fumana matla a tšoanang a tlamo.

4. Phokotso ea ho Shrinkage:

Ho lahleheloa ke metsi a mangata ho tloha seretseng nakong ea ho phekola ho ka lebisa ho fokotseha le ho phunyeha, ho senya botšepehi le botle ba mehaho ea masonry. Ka ho ntlafatsa ho bolokoa ha metsi, HPMC e fokotsa mathata a amanang le shrinkage ka ho fokotsa tahlehelo ea mongobo ho tsoa ho matrix a seretse. Sena se thusa ho boloka botsitso ba sebopeho le ho fokotsa kotsi ea ho putlama ha shrinkage, ho fella ka ho tšoarella le ho khahleha ha masonry.

5. Ho lumellana le Li-additives:

HPMC e bonts'a tšebelisano e ntle le li-additives tse ling tse atisang ho sebelisoa ha ho etsoa seretse, joalo ka li-air-entraining agents, li-plasticizers, le li-accelerator tsa ho seta. Ha e kopantsoe le li-additives tsena, HPMC e ka ntlafatsa thepa ea ho boloka metsi ha e ntse e boloka litšobotsi tse lakatsehang tsa rheological le litekanyetso tsa ts'ebetso ea seretse. Mokhoa ona oa ho feto-fetoha o lumella baetsi ba lihlahisoa ho fetola litlolo tsa seretse ho latela litlhoko le maemo a kaho, ho netefatsa ts'ebetso e nepahetseng le ho tšoarella lits'ebetsong tse fapaneng.

Qetello:

Qetellong, Hydroxypropyl methylcellulose (HPMC) e bapala karolo ea bohlokoa ho ntlafatseng thepa ea ho boloka metsi ea metsoako ea seretse sa masonry. Ka ho theha marang-rang a hydrogel, ho tlama limolek'hule tsa metsi, le ho ntlafatsa ts'ebetso ea ts'ebetso, HPMC e tiisa hore ho na le mongobo o tsitsitseng, ho phalla ha nako e telele, le ho fokotsa ho fokotseha ha likopo tsa seretse. Ho tsamaellana ha eona le litlatsetso tse ling le ho feto-fetoha ha maemo ho etsa hore HPMC e be karolo ea bohlokoa bakeng sa ho fihlela liphetho tsa boleng bo holimo, tse tšoarellang, le tse khahlisang ka bokhabane mererong ea kaho.