Li-additives tsa polymer bakeng sa konkreite ke lisebelisoa tse sebelisetsoang ho ntlafatsa ts'ebetso ea konkreite. Ba ntlafatsa thepa ea 'mele le ea lik'hemik'hale ea konkreite ka ho hlahisa li-polymers, kahoo ba ntlafatsa matla, ho tšoarella, ho sebetsa, joalo-joalo. Li-additives tsa polymer li ka aroloa ka mefuta e 'maloa, ho kenyelletsa le li-polymer tse qhibilihang ka metsi, li-emulsion polymers, li-polymers tsa phofo le li-polymers tse sebetsang.
Mefuta ea li-additives tsa polymer
Li-polymer tse qhibilihang ka metsi: Hangata li-polymers tsena li teng ka mokhoa oa tharollo ea metsi, haholo-holo ho kenyelletsa joala ea polyvinyl (PVA), polyacrylamide (PAM), joalo-joalo. ho se kenelle le ho hanyetsa mapheo a konkreite.
Emulsion polymers: Emulsion polymers ke mofuta oa li-polymers tse entsoeng ka emulsion polymerization, 'me tse tloaelehileng li kenyelletsa styrene-acrylate copolymers le ethylene-vinyl acetate copolymers. Mofuta ona oa polymer o ka ntlafatsa thepa ea maqhama ea konkreite le ho eketsa ho tiea le ho hanyetsa ha konkreite.
Li-polymers tsa phofo: Li-polymers tse phofshoana li ka kenyelletsoa ka ho toba ho metsoako e omileng, e kang ethylene-vinyl acetate powder (EVA), phofo ea acrylate, joalo-joalo Li-polymers tsena tsa phofo li ka ntlafatsa matla a ho hatella le ho qhibiliha ha konkreite, hape li thusa ho fokotsa ho fokotseha. le ho petsoha ha konkreite.
Li-polymers tse sebetsang: Li-polymer tsena li ka sebetsana le lik'hemik'hale ka likarolo tsa samente ho etsa thepa e kopaneng e tsitsitseng le e tšoarellang. Ka mohlala, li-resin tsa epoxy, polyurethanes, joalo-joalo, li ka ntlafatsa haholo lik'hemik'hale tsa ho bola ha lik'hemik'hale, ho hanyetsa ho phunyeletsa le ho roala ha konkreite.
Mokhoa oa ts'ebetso oa li-additives tsa polymer
Li-additives tsa polymer li ntlafatsa ts'ebetso ea konkreite ka litlamorao tsa 'mele le tsa lik'hemik'hale. Phello ea 'mele ke ho tlatsa li-pores ka har'a peista ea samente, ho eketsa bongata ba konkreite, le ho fokotsa ho kenella ha metsi. Phello ea lik'hemik'hale ke ho theha thepa e kopantsoeng ea elastic ka ho sebelisana pakeng tsa polymer le lihlahisoa tsa samente tsa hydration, ka tsela eo ho ntlafatsa ho tiea le ho tšoarella ha konkreite.
Ntlafatsa ts'ebetso ea tlamahano: Li-additives tsa polymer li ka theha filimi pakeng tsa likaroloana tsa samente le li-aggregate, tsa ntlafatsa maqhama pakeng tsa tse peli, 'me kahoo li matlafatsa matla le ho hanyetsa ha konkreite.
Fokotsa ho phunyeha ha shrinkage: Li-polymer tse ling li ka eketsa ho feto-fetoha ha maemo le ductility ea konkreite, tsa fokotsa mapetsong a bakoang ke ho fokotseha, 'me kahoo li lelefatsa bophelo ba tšebeletso ea mehaho ea konkreite.
Khanyetso ea kutu ea lik'hemik'hale: li-additives tsa polymer li ka ntlafatsa khanyetso ea lik'hemik'hale tsa konkreite, haholo-holo libakeng tse senyang joalo ka asiti, alkali le letsoai. Li-polymer tsena li ka thibela ka katleho ho kenella ha mecha ea litaba e senyang le ho sireletsa mehaho ea konkreite.
Ntlafatsa khanyetso ea leqhoa: Libakeng tse batang, konkreite hangata e senngoa ke lipotoloho tsa leqhoa. Li-additives tsa polymer li ka ntlafatsa ka nepo ho hanyetsa ho qhibiliha ha konkreite ka ho ntlafatsa letsoalo la eona le ho hanyetsa mapheo.
Libaka tsa kopo
Li-additives tsa polymer li sebelisoa haholo mafapheng a mangata, ho kenyelletsa:
Boenjiniere ba kaho: Ha ho hahoa mehaho ea bolulo le ea khoebo, li-additives tsa polymer li atisa ho sebelisoa fatše, marako le likarolo tse ling ho ntlafatsa ho hanyetsa mapheo le phello e khabisitsoeng ea konkreite.
Litsela le marokho: li-additives tsa polymer li sebelisoa haholo ha ho hahoa litsela le marokho ho matlafatsa matla a khatello le ho tšoarella ha konkreite, ka tsela eo, ho lelefatsa bophelo ba litšebeletso tsa litšebeletso tsa motheo.
Merero ea ho boloka metsi: Merero ea ho boloka metsi joalo ka matamo le matamo, li-additives tsa polymer li ka ntlafatsa ho se khonehe le khanyetso ea kutu ea lik'hemik'hale ea konkreite, ho netefatsa polokeho le botsitso ba morero.
Merero ea ho lokisa: li-additives tsa polymer li atisa ho sebelisoa ho lokisa le ho matlafatsa mehaho ea khale ea konkreite, ho ntlafatsa matla a bona a sebopeho le ho tšoarella, le ho qoba litšenyehelo tse phahameng tsa ho senya le ho tsosolosa.
Li-additives tsa polymer bakeng sa konkreite ke karolo ea bohlokoa ea theknoloji ea sejoale-joale ea konkreite. Ka ho hlahisa mefuta e fapaneng ea li-polymers, thepa e fapaneng ea konkreite e ntlafalitsoe haholo. Ebang ke mohahong o mocha kapa tokisong ea mehaho ea khale, tšebeliso ea li-additives tsa polymer e na le bohlokoa ba bohlokoa bo sebetsang. Ka tsoelo-pele e tsoelang pele ea theknoloji, li-additives tsa nakong e tlang tsa polymer li tla ntlafatsa ts'ebetso ea konkreite le ho fihlela litlhoko tse hlokahalang tsa boenjiniere.
Nako ea poso: Aug-29-2024