Lithako tsa kaho li sebelisoa haholo lits'ebetsong tse fapaneng indastering ea kaho joalo ka samente, fatše, lithaele le masonry, joalo-joalo. Lilemong tsa morao tjena, ho bile le tlhokahalo e ntseng e hola ea li-additives tse ntlafatsang ts'ebetso ea lirekere. Redispersible polymer powder (RDP) ke tlatsetso e tsebahalang e eketsoang seretseng sa kaho ho ntlafatsa thepa ea bona. Sengoliloeng sena se tla fana ka kakaretso ea karolo ea RDP redispersible polymer powder additives ka har'a seretse sa kaho.
Redispersible polymer powder ke polymer e entsoeng ka ethylene-vinyl acetate copolymer, acrylic acid le vinyl acetate. Li-polymer tsena li tsoakoa le li-additives tse ling tse kang li-filler, thickeners le li-binders ho hlahisa phofo ea RDP. Li-powders tsa RDP li sebelisoa tlhahisong ea mefuta e mengata ea thepa ea kaho ho kenyeletsoa likhomaretsi tsa lithaele, lirekere tse thehiloeng ho samente le li-ajenti tse lekanyang.
O mong oa melemo ea mantlha ea ho sebelisa RDP ka lirekere tsa kaho ke hore e ntlafatsa ho sebetsa ha seretse. RDP e eketsa botsitso ba seretse, ho etsa hore ho be bonolo ho e sebelisa le ho hasana. Ts'ebetso e ntlafetseng e boetse e bolela hore metsi a fokolang a hlokahala ho finyella botsitso bo lakatsehang. Sena se etsa hore seretse se se ke sa qhoma le ho honyela, se etsa hore se tšoarelle nako e telele.
Molemo o mong oa bohlokoa oa ho sebelisa RDP liretseng tsa kaho ke hore e ntlafatsa ho khomarela seretse. Ho ntlafala ho khomarela ho bolela hore seretse se theha maqhama a matla le bokaholimo bakeng sa ts'ebetso e ntle le ho tšoarella. RDP e boetse e ntlafatsa boleng ba ho boloka metsi a seretse, ho thusa ho thibela tahlehelo ea metsi nakong ea kaho. Sena se lumella seretse ho beha le ho thatafala ka ho lekana, ho netefatsa ts'ebetso e tsitsitseng le ho tšoarella.
RDP e boetse e eketsa ho tenyetseha ha seretse, ho etsa hore e khone ho mamella khatello ea nako e telele le khatello. Ho eketseha ho feto-fetoha ha seretse ho bolela hore ha ho bonolo ho petsoha le ho robeha leha e le maemong a thata a tikoloho. Ho feto-fetoha ha maemo hona ho boetse ho bolela hore seretse se na le mekhoa e mengata 'me se ka sebelisoa mefuteng e mengata ea lisebelisoa, ho kenyeletsoa libaka tse sa tsitsang le tse kobehileng.
Tšebeliso ea RDP ka seretse sa kaho e boetse e eketsa matla a khatello ea seretse. Matla a hatellang ke thepa ea bohlokoa ea ho aha seretse kaha se etsa qeto ea hore na seretse se hanana le deformation le ho peperana ha moroalo hantle hakae. RDP e eketsa matla a hatellang a seretse, e etsa hore e khone ho mamella meroalo e boima hamolemo le ho fokotsa monyetla oa ho peperana le tšenyo.
Ka bokhutšoanyane, tšebeliso ea li-addispersible polymer powder tsa RDP ka har'a seretse sa kaho e fana ka melemo e mengata e ka ntlafatsang ts'ebetso le ho tšoarella ha seretse. RDP e ntlafatsa bokhoni ba ho sebetsa, ho khomarela, ho boloka metsi, ho tenyetseha le matla a hatellang a seretse, e etsa hore e be e fapaneng le e loketseng bakeng sa mefuta e mengata ea likopo. Ho sebelisa RDP ho lirekere tsa kaho ho hlahisa sehlahisoa se sebetsang hantle, se theko e tlase ebile se tšoarella nako e telele, e leng se etsang hore e be khetho e tsebahalang haholo ho lihahi le borakonteraka.
Nako ea poso: Jun-29-2023