Ho utloisisa li-Admixtures tsa Concrete - Likopano tsa konkreite ke taba e rarahaneng empa ho bohlokoa haholo ho utloisisa hore na li-admixtures li teng le hore na li etsa eng.
Li-admixtures ke lisebelisoa tse ka har'a konkreite tseo e seng tsa hydraulic cementitious material, metsi, aggregates kapa fiber reinforcement e sebelisoang e le metsoako ea motsoako oa cementitious ho fetola thepa ea eona e sa tsoa tsoakoa, e behiloeng kapa e thatafalitsoeng le e eketsoang sehlopheng pele kapa nakong. ho kopanya.
Metsoako e fokotsang metsi e ntlafatsa polasetiki ea konkreite (e kolobileng) le thepa e thata, ha metsoako e laolang e sebelisoa ka konkreite e behoang 'me e felile ka ntle ho mocheso o nepahetseng.Ka bobeli, ha li sebelisoa ka nepo, li tlatsetsa mekhoeng e metle ea ho betla.

Indastering ea sejoale-joale ea kaho, ka tlase ho na le metsoako ea konkreite e sebelisoang haholo.
●Metsoako ea konkreite e fokotsang metsi
● Metsoako ea konkreite e entsoeng ka superplasticing
● Seta Retarding konkreite admixtures
● Ho potlakisa metsoako ea konkreite
● Metsoako ea konkreite e kenyang moea
● Metsoako ea konkreite e hanyetsanang le Metsi
● Li-Mortar tse sa sebetseng, tse seng li loketse ho sebelisoa
● Metsoako ea Konkreite e fafalitsoeng
● Corrosion e thibelang metsoako ea konkreite
● Metsoako ea Konkreite e Foamed

Metsoako ea konkreite e fokotsang metsi
Li-admixtures tse fokotsang metsi ke lisebelisoa tsa tlhaho tse qhibilihang ka metsing, tse fokotsang metsi a hlokahalang ho finyella mosebetsi o fanoeng ntle le ho ama moea kapa ho phekola konkreite.Ba etsa mesebetsi e meraro:
●Eketsa matla le lebelo la ho fumana matla.
●Moruo oa moralo oa motsoako le ho fokotseha ha carbon footprint.
● Keketseho ea ho sebetsa.

Metsoako ea konkreite e holimo-limo
Metsoako e phahameng e fokotsang metsi e bitsoa Superplasticing admixtures ke lik'hemik'hale tse qhibilihang ka metsing, hangata li-polymers, tse fokotsang haholo metsi a hlokahalang ho fihlela tumellano e fanoeng ka konkreite ea polasetiki.
Li fokotsa metsi ntle le ho fokotsa matla bakeng sa litlhoko tse phahameng tsa ho sebetsa.Li boetse li ntlafatsa durability.
Metsoako e phahameng e fokotsang metsi e sebetsa ka tsela e ts'oanang le ea 'Metsi a Tloaelehileng a Fokotsang Metsoako, empa a matla haholo ts'ebetsong ea bona ea ho qhala samente 'me a ka sebelisoa ka tekanyo e phahameng ntle le litla-morao tse sa batleheng tse kang ho kenngoa moeeng kapa ho fokotseha ha sete.

Beha li-admixtures tsa konkreite tse liehang
Metsoako ea "set retading admixtures" ke lik'hemik'hale tse qhibilihang ka metsing tse liehang ho beha samente.Ha li na polasetiki haholo 'me ha li na phello e fokolang kapa ha li na phello ho tlhokahalo ea metsi kapa thepa e meng ea konkreite.
Seta metsoako e fokotsang metsi e liehang feela e se ke ea lieha ho beha samente empa hape e eketsa ts'ebetso ea pele ka ho kenya konkreite ka polasetiki kapa ho fokotsa tlhokahalo ea metsi.Bongata ba li-admixture tsa morao-rao tse fumanehang khoebong ke tsa mofuta ona.
Ho fokotsa metsi le ho fokotsa metsi a mangata ho sebelisoa ho:
● Liehisa nako ea ho beha konkreite
● Thibela ho thehoa ha manonyeletso a batang
●Eketsa bokhoni ba pele ba ho sebetsa
● Ntlafatsa ts'ebetso ea ts'ebetso ho konkreite Eketsa matla a ho qetela.
● Hlahisa moruo ka meralo e tsoakaneng
Hoa lokela ho hlokomeloa hore le hoja retarder e hlokahala bakeng sa ho boloka slump.Ho eketsoa ha motsoako o liehang ka bohona ha ho hlahise phokotseho 'me ho tla hlokahala liphetoho tse ling motsoakong.

Ho potlakisa metsoako ea konkreite
Ho potlakisa li-admixtures ho ka sebelisoa ho eketsa sekhahla sa ho thatafala / ho beha konkreite kapa ho eketsa sekhahla sa ho thatafala le ho fumana matla a pele ho lumella ho theoa le ho ts'oaroa ha pele.Li-accelerator tse ngata li finyella e le 'ngoe ho e-na le mesebetsi ena ka bobeli.
Li-accelerator li sebetsa ka ho fetisisa mochesong o tlase.
Li-accelerator li boetse li sebelisetsoa ho fokotsa kotsi ea tšenyo ka ho qhoqhoa ha ho bata ha boemo ba leholimo bo bata le ho lumella ho tlosoa ha foromo pele ho mosebetsi empa ho lokela ho hlokomeloa hore ha se khahlanong le leqhoa.Lifahleho tse pepesitsoeng tsa konkreite e otliloeng li ntse li tlameha ho sireletsoa le ho phekoloa hantle.
Lithempereicharang tse tloaelehileng, mokhoa o betere oa ho matlafatsa matla a pele ke ho sebelisa se fokotsang metsi.
Phokotso e kholo (e kholo ho feta 15%) ea karo-karolelano ea samente ea metsi e ka feta matla a hatellang habeli ka lilemo tse ka tlase ho lihora tse 24.Li-accelerator li ka sebelisoa hammoho le li-superplasticisers (<0.35 w / c ratio) moo matla a lilemo a sa le monyenyane a hlokahalang.Haholo-holo ka mocheso o tlase.Haeba ho hlokahala, tšebeliso ea li-accelerator e ka kopanngoa le lisebelisoa tse fokotsang metsi a mangata ho ntlafatsa tsoelo-pele ea matla ka mocheso o tlase le o tloaelehileng.
Likopo tse ling tsa ho potlakisa metsoako li kenyelletsa litokiso tse potlakileng tsa konkreite le ts'ebetsong ea ts'ireletso ea leoatle ho netefatsa hore konkreite e satalla kapele sebakeng sa maqhubu.

Metsoako ea konkreite e kenyang moea
Metsoako e kopanyang moea ke lik'hemik'hale tse sebetsang ka holim'a metsi tse etsang hore lipulunyana tse tsitsitseng tsa moea li thehoe ka mokhoa o ts'oanang ka motsoako oa konkreite.Li-bubble hangata li ka tlase ho 1 mm bophara le karolo e phahameng e ka tlase ho 0.3 mm.
Melemo ea ho kenya moea ka konkreite e kenyelletsa:
● Ketso e eketsehileng ea ho hanyetsa ketso ea leqhoa le ho qhibiliha
● Keketseho ea momahano e fellang ka ho fokotseha ha mali le ho kopanya karohano.
● Tšebelisano e ntlafetseng ka metsoako e tlaase ea ho sebetsa.
● E fana ka botsitso ho konkreite e extruded
● E fana ka momahano e ntlafetseng le thepa ea ho sebetsana le libotlolo tsa ho robala.
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Metsoako ea konkreite e thibelang metsi
Metsoako e thibelang metsi e atisa ho bitsoa "thibelo ea metsi" metsoako 'me e ka boela ea bitsoa "permeability reductions'".Mosebetsi oa bona o ka sehloohong ke ho fokotsa ho kenella ka holim'a konkreite le / kapa phallo ea metsi ka konkreite e thata.Ho finyella sena, lihlahisoa tse ngata li sebetsa ka tsela e le 'ngoe kapa ho feta tse latelang:
● Ho fokotsa boholo, palo le ho tsoela pele ha sebopeho sa pore ea capillary
● Ho thibela sebopeho sa pore ea capillary
● Ho koahela li-capillaries ka lintho tse thibelang metsi ho thibela metsi ho huloa ka ho monya / ho huloa ha capillary.
Metsoako ena ea 'thibelo ea metsi' e fokotsa ho monya le ho kenella ha metsi ka ho sebetsa ho sebopeho sa capillary sa peista ea samente.Li ke ke tsa fokotsa haholo ho kenella ha metsi ka mapetsong kapa ka konkreite e sa kopanngoeng hampe, e leng mabaka a mabeli a tloaelehileng a ho lutla ha metsi ka har'a meaho ea konkreite.
Metsoako e hananang le metsi e bontšitsoe ho fokotsa kotsi ea ho bola ha tšepe e matlafatsang ka konkreite e tlas'a maemo a mabifi, empa sena se ipapisitse le mefuta e fapaneng ea motsoako kapa mefuta ea mefuta e sebelisoang.
Metsoako e hananang le metsi e na le ts'ebeliso e 'ngoe e kenyelletsang phokotso ea efflorescence, e ka bang bothata bo itseng linthong tse ling tsa precast.

E fokotsehile, e loketse ho sebelisoa liretse
Metsoako e Itokiselitseng ho sebelisoa e Khutlisitsoeng e theiloe holim'a motsoako oa polasetiki ea seretse (motsoako o kenyang moea/plasticing) le seretse sa seretse.Motsoako ona o lokisoa ho fana ka nako e telele ea ho tsitsa, hangata ka lihora tse 36.Leha ho le joalo, ha seretse se behoa pakeng tsa likarolo tsa masonry tse monyang, boemo bo potlakisa 'me seretse se behoa ka tsela e tloaelehileng.
Mehaho ena e thusa ho fana ka seretse libakeng tsa meaho ke barekisi ba li-mix mix le ho fana ka melemo e latelang:
● Boleng bo tiisitsoeng ba taolo ea likarolo tsa motsoako
●Moea o tsitsitseng le o tsitsitseng
● Ho boloka maemo (ho sebetsa) (ho fihla ho lihora tse 72.)
● Keketseho ea tlhahiso
● E felisa tlhoko ea li-mixer le ho boloka thepa setšeng
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Lithibelo mabapi le ts'ebeliso ea liretse tse seng li loketse ho sebelisoa bakeng sa masonry a sa monyeng le ho fana ka tsona, tse hlalositsoeng ka botlalo litemaneng tsa 4.6 le 4.7, li lokela ho hlokomeloa.

Metsoako ea konkreite e fafalitsoeng
Konkreite e fafalitsoeng e pompuoa ho fihlela e sebelisoa ebe e kenngoa ka pneumatically sebakeng ka lebelo le phahameng.Hangata lits'ebetso li otlolohile kapa li le holimo 'me sena se hloka ho satalla ka potlako haeba ho thella kapa ho lahleheloa ke konkreite ho tloha substrate tlas'a boima ba eona ho lokela ho qojoa.Lits'ebetsong tsa kotopo, konkreite e fafalitsoeng hangata e sebelisoa ho fana ka ts'ehetso ea pele ea sebopeho mme sena se hloka ntlafatso ea pele ea matla hammoho le ho satalla ka potlako.
Li-admixtures li ka sebelisoa ka konkreite e ncha ho fana ka botsitso le taolo ea metsi pele ho ho fafatsa.Ebe ka ho eketsa motsoako o potlakisang molomong oa spray, rheology le ho beha konkreite li laoloa ho netefatsa hore ho na le mohaho o khotsofatsang holim'a substrate ka bonyane ba lintho tse sa tlamisoang tse bakang ho khutla.
Ho na le mekhoa e 'meli:
● Ts'ebetso e omileng moo motsoako oa metsi le accelerator li kenngoa ho motsoako o omileng oa seretse ho
● nozzle ea ho fafatsa.
● Ts'ebetso ea metsi moo seretse kapa konkreite e kopantsoeng le stabilizer / retarder pele ho
● ho pompa ho nozzle moo accelerator e kenyelletsoang teng.

Ts'ebetso ea metsi e fetohile mokhoa oa khetho mehleng ea morao tjena kaha e fokotsa ho ntšoa ha lerōle, palo ea thepa e khutlang hape e fana ka konkreite e laoloang haholoanyane le e tsitsitseng.

Corrosion e thibelang metsoako ea konkreite
Ho utloisisa Concrete Admixtures - Corrosion inhibiting admixtures e eketsa boemo ba passivation ba matlafatso le litšepe tse ling tse kentsoeng meahong ea konkreite.Sena se ka thibela ts'ebetso ea kutu ka nako e telele ha passivation e ka be e lahlehile ka lebaka la chloride ingress kapa carbonation.
Li-corrosion inhibiting admixtures tse kentsoeng konkreite nakong ea tlhahiso li bitsoa "integral" corrosion inhibitors.Li-migratory corrosion inhibitors li fumaneha hape tse ka sebelisoang ho konkreite e thata empa tsena ha se li-admixtures.
Sesosa se atileng ka ho fetesisa sa kutu e matlafatsang ke kutu ea likoti ka lebaka la ho kenella ha li-ion tsa chloride ka konkreite e koahelang le ho hasana ho latelang ho fihlela tšepe e kentsoeng.Le hoja li-corrosion inhibitors li ka phahamisa moeli oa tšepe, ha se mokhoa o mong oa ho hlahisa konkreite e sa keneng, e tšoarellang e thibelang ho ata ha chloride.
Carbonation ea konkreite e lebisa ho theoleheng ha alkalinity ho pota-potile tšepe 'me sena se baka tahlehelo ea passivation e ka boela ea fella ka ho senyeha ha matla ka kakaretso.Corrosion inhibitors e ka thusa ho itebela khahlanong le mofuta ona oa tlhaselo.
Corrosion inhibitors e ka fokotsa haholo litšenyehelo tsa tlhokomelo ea meaho ea konkreite e matlafalitsoeng ho pholletsa le bophelo bo tloaelehileng ba ts'ebeletso ea lilemo tse 30 - 40.Mehaho e kotsing haholo ke e pepesehileng tikolohong ea maoatle kapa maemong a mang moo ho ka etsahalang hore chloride e kene ka konkreite.Mehaho e joalo e kenyelletsa marokho, lithanele, limela tsa indasteri, li-jetties, li-wharve, li-dolphin tse hohelang le mabota a leoatle.Mehaho ea litsela tse kholo e ka angoa ke ts'ebeliso ea matsoai a de-icing nakong ea likhoeli tsa mariha, joalo ka libaka tsa ho paka likoloi tse nang le mekato e mengata moo metsi a tletseng letsoai a rothang likoloi ebe a fetoha mouoane fatše.

Metsoako ea konkreite e foamed
Ho utloisisa Lisebelisoa tsa Concrete - Lisebelisoa tsa Konkreite tse Foamed ke li-surfactants tse hlapolotsoeng ka metsi pele li fetisa tharollo ka jenereithara ea foam e hlahisang foam e tsitsitseng, e tšoanang le tranelate ea ho kuta.Foam ena ea pre foam e kopanngoa ho seretse sa cementitious ka bongata bo hlahisang seretse se hlokahalang ka har'a seretse se foamed (hangata se bitsoang konkreite e foamed).
Li-Admixtures tsa Low Density Fill le tsona ke li-surfactants empa li eketsoa ka kotloloho ka har'a konkreite e nang le samente e ngata, e tlase ho fana ka moea oa 15 ho isa ho 25%.Tlatsetso ena e tlase ea density;E boetse e bitsoa Controlled Low Strength Material (CLSM), e na le thepa e ntle ea phallo mme e fumana ts'ebeliso lits'ebetsong tsa ho tlatsa liforo le mesebetsi e meng e ts'oanang e tlase ea ho tlatsa sekheo.

Bakeng sa tlhaiso-leseling e batsi le kopo ea quotation, ka kopo ikutloe u lokolohile ho ikopanya le sehlopha sa rona sa barekisi.