Selelekela:
Seretse ke motsoako oa samente, lehlabathe le metsi tse sebelisoang ho haha litene kapa litene. Ke karolo ea bohlokoa ea kaho ea masela 'me e sebelisoa mefuteng e fapaneng, ho kenyelletsa ho aha litene, ho thibela, ho etsa majoe le ho lipola. Air entraining agents (AEA) ke mofuta oa motsoako oa lik'hemik'hale o ka sebelisoang seretseng ho ntlafatsa thepa ea ona. Sehloohong sena, re tla tšohla karolo ea li-air-entraining agents ka seretse le hore na li ka ntlafatsa ts'ebetso ea seretse joang.
Moemeli oa ho Kenela Moea (AEA) ke eng?
Li-air-entraining agents (AEA) ke li-additives tsa lik'hemik'hale tse kenngoang seretseng ho hlahisa lipululana tsa moea tse nyenyane, tse arohaneng ka ho lekana ka har'a motsoako. Lipululoana tsena tsa moea li ka ntlafatsa ho sebetsa, ho hanyetsa ho qhibiliha ha seretse, le ho tšoarella ha seretse. Li-air-entraining agents hangata ke metsoako ea tlhaho e nang le li-surfactants kapa lik'hemik'hale tse ling tse ka etsang lipokotho tsa moea ka har'a motsoako. Palo ea moea o kentsoeng ka har'a motsoako o ka laoloa ka ho fetola palo ea moemeli oa moea o kenang seretseng.
Mefuta ea Liemeli tsa ho Koetlisa Moea:
Ho na le mefuta e 'maloa ea li-air-entraining agents tse sebelisoang seretseng. Mefuta e tsebahalang haholo e kenyelletsa:
- Synthetic Surfactants: Tsena ke lik'hemik'hale tsa maiketsetso tse etselitsoeng ho etsa lipululoana tsa moea tse nyane, tse arohaneng ka ho lekana ka har'a motsoako. Hangata li kenyelletsoa motsoako ka mokhoa oa mokelikeli 'me li ka sebelisoa liretseng tsa cementitious le tse se nang cementitious.
- Natural Surfactants: Tsena ke lisebelisoa tsa tlhaho, joalo ka lihlahisoa tsa limela kapa mafura a liphoofolo, a nang le li-surfactants. Li ka sebelisoa ka bobeli liretseng tsa cementitious le tse se nang samente.
- Hydrophobic Agents: Tsena ke lik'hemik'hale tse lelekang metsi 'me li ka sebelisoa ho etsa lipokotho tsa moea ka har'a motsoako. Ka tloaelo li kenngoa motsoakong ka mokhoa oa phofo 'me li ka sebelisoa liretseng tsa cementitious le tse se nang cementitious.
- Li-Air-Entraining Admixtures: Tsena ke motsoako oa lik'hemik'hale tse etselitsoeng ka ho khetheha ho etsa lipululana tsa moea tse nyenyane, tse arohaneng ka ho lekana ka har'a motsoako. Hangata li kenyelletsoa motsoako ka mokhoa oa mokelikeli 'me li ka sebelisoa liretseng tsa cementitious le tse se nang cementitious.
Karolo ea Liemeli tsa ho Koetlisa Moea ka Seretse:
- Mosebetsi:
Ho eketsoa ha li-air-entraining agents ho seretse ho ka ntlafatsa ts'ebetso ea eona. Li-bubble tsa moea tse nyenyane, tse arolelanoang ka ho lekana ka har'a motsoako li ka fokotsa tsitsipano ea holim'a motsoako 'me tsa etsa hore ho be bonolo ho jala le ho laola. Sena se ka ba molemo ka ho khetheha ha u sebetsa ka seretse maemong a batang kapa a mongobo, kaha li-bubble tsa moea li ka thusa ho thibela motsoako hore o se ke oa thatafala kapa o thata ho sebetsa le oona.
- Ho hanyetsana le Freeze-Thaw:
E 'ngoe ea melemo e ka sehloohong ea ho sebelisa li-air-entraining agents ka seretse ke hore li ka ntlafatsa ho thibela ho qhibiliha ha eona. Ha metsi a hoama, aa atoloha, e leng se ka bakang tšenyo seretseng. Leha ho le joalo, lipululana tsa moea tse nyenyane, tse ajoang ka ho lekana tse entsoeng ke li-air-entraining agents li ka fana ka sebaka sa hore metsi a ka atolosetsoa ho tsona, e leng ho fokotsa tšenyo e ngata e etsahalang. Sena se ka ba molemo haholo libakeng tse nang le mariha a batang, moo linako tsa leqhoa le qhibilihang li atileng.
- Nako e telele:
Lisebelisoa tse kenyang moea le tsona li ka ntlafatsa ho tšoarella ha seretse. Lipokotho tse nyenyane tsa moea tse ka har'a motsoako li ka sebetsa e le tšireletso pakeng tsa likaroloana tse tiileng tsa motsoako, ho fokotsa khatello ea kelello e behiloeng holim'a tsona. Sena se ka thusa ho thibela ho petsoha le mefuta e meng ea tšenyo ha nako e ntse e ea, haholo-holo maemong ao seretse se pepesehang khatellong e kholo ea maikutlo kapa ho thothomela.
- Paballo ea Metsi:
Li-air-entraining agents li ka boela tsa thusa ho ntlafatsa ho boloka metsi a seretse. Lipokotho tse nyenyane tsa moea tse ka har'a motsoako li ka thusa ho thibela metsi hore a se ke a fetoha mouoane ka potlako ho tloha holim'a seretse, e leng se ka thusang haholo-holo maemong a chesang kapa a omileng. Sena se ka thusa ho etsa bonnete ba hore seretse se lula se sebetsa ka nako e telele, ho fokotsa tlhoko ea ho kopanya bocha kapa ho sebelisoa hape.
- Matla a Bond:
Molemo o mong oa ho sebelisa li-air-entraining agents ka seretse ke hore li ka ntlafatsa matla a maqhama pakeng tsa seretse le lihlopha tsa masonry. Lipokotho tse nyenyane tsa moea tse ka hare ho motsoako li ka thusa ho etsa sebaka se nang le porous, ho lumella seretse hore se khomarele hantle holim'a setsi sa masonry. Sena se ka thusa ho theha maqhama a matla, a tšoarellang haholoanyane ao ho seng bonolo hore a pepesehe kapa a hlolehe ha nako e ntse e ea.
- Ho fokotseha ho fokotseha:
Li-air-entraining agents li ka boela tsa thusa ho fokotsa ho honyela ha seretse ha se ntse se fola. Ha seretse se omella, se ka honyela hanyane, se ka bakang ho peperana kapa mefuta e meng ea tšenyo. Leha ho le joalo, lipokotho tse nyenyane tsa moea tse entsoeng ke li-air-entraining agents li ka thusa ho fokotsa ho fokotseha hona, ho fokotsa kotsi ea tšenyo le ho etsa bonnete ba hore seretse se lula se le matla 'me se tsitsitse ha nako e ntse e ea.
Qetello:
Ka kakaretso, li-air-entraining agents li phetha karolo ea bohlokoa ts'ebetsong ea seretse. Li ka ntlafatsa ts'ebetso, ho hanyetsa ho qhibiliha ha leqhoa, ho tšoarella, ho boloka metsi, matla a tlamo, le ho fokotsa ho fokotseha ha seretse, ho etsa hore e be thepa e ka tšeptjoang le e sebetsang bakeng sa ho sebelisoa mohahong. Ho na le mefuta e 'maloa ea li-air-entraining agents tse fumanehang, e' ngoe le e 'ngoe e na le thepa ea eona e ikhethang le melemo ea eona. Ka ho utloisisa karolo ea li-air-entraining agents ka seretse, litsebi tsa kaho li ka khetha mofuta o nepahetseng le palo ea moemeli ho finyella liphello tse lakatsehang le ho netefatsa hore merero ea bona e hahuoa hore e tšoarelle.
Nako ea poso: Mar-10-2023