Laola Mehato ea ho Tsoa Mali Ka mor'a ho Sebelisa Superplasticizer

Tšebeliso ea polycarboxylate superplasticizer konkreite, bapisoa le tshebediso ya letoto la naphthalene setso, aliphatic superplasticizer konkreite, boholo ba nako ho tsoa mali ho tla ba tlase, mali a fokolang a tla ba kholoanyane. Empa hang ha ho sebelisoa carboxylic acid konkreite ho tsoa mali ho feteletseng, hangata ho thata ho ikamahanya le maemo.

1.Moralo oa mochini oa limolek'hule oa polycarboxylate superplasticizer

Polycarboxylate superplasticizer e ka fokotsa ho tsoa mali ka litsela tse fapaneng. Ea pele, polycarboxylate superplasticizer e fokotsa tšebeliso ea metsi molemong oa ho netefatsa ts'ebetso ea lisebelisoa tse thehiloeng ho samente.. Ha tšebeliso ea metsi ea lisebelisoa tsa ho kopanya e fokotseha, metsi a tsoang mali a tla fokotseha haholo. Ea bobeli, polycarboxylate e fokotsang metsi e na le phello e ntle ea ho hasana, e ka qhalang ka ho feletseng likaroloana tsa samente ka metsing ho thibela sedimentation ea likaroloana tse kholoanyane., ka hona ho fokotsa ho dutla ha madi. Ea boraro, Limolek'hule tsa polycarboxylate li ne li kentsoe holim'a likaroloana tsa samente, ho etsa makumane a samente a tebelanang, ho fokotsa boholo bo sebetsang ba samente ea flocculation ka bongata, ho liehisa sekhahla sa sedimentation le ho fokotsa ho tsoa mali. Molemo o mong ke hore limolek'hule tsa polycarboxylate superplasticizer li ka khoneha haholo. Boima ba limolek'hule tse nyane, ho hasana ho tla eketseha, ho tsoa madi ho fokotsehile hanyane, empa ka nako e ts'oanang tlisitsoe tahlehelo ea lichelete tsa konkreite e lokela ho nkoa. E ts'oanang le phello ea boima ba limolek'hule ho tsoa mali, litaba tsa sehlopha se seholo sa adsorption ka limolek'hule tsa polycarboxylate, boima ba ketane, bolelele ba ketane ea lekala le lintlha tse ling li na le phello ea mali a konkreite.

2 Polycarboxylate superplasticizer e ekelitse li-excipients

Ho eketsa lisebelisoa tse thusang ho polycarboxylate superplasticizer, joalo ka air-conditioner, defoamer, moemeli oa coagulant, retarder, viscosity regulator, etc., e ka ntlafatsa mali a konkreite.

Moemeli oa moea o ka fokotsa tsitsipano ea metsi holim'a metsi le ho hlahisa li-bubble tse nyane. Ka lebaka la polarity e fapaneng ea tefiso e tsitsitseng, lipululana tsena tse nyenyane li tla adsorb holim'a likaroloana tsa samente, 'me sekhahla se tloaelehileng sa likaroloana tsa samente tse adsorbing li-bubble li tla fokotseha, e tla fokotsa lebelo la sedimentation mme kahoo e fokotse ho dutla ha madi. Li-antifoaming agents li na le mochine o tšoanang empa phello e fapaneng. Coagulant e ka khutsufatsa nako ea coagulation, kahoo nako e tiileng ea ho beha likaroloana e tla khutsufatsoa, mali a tsoang holimo a tla fokotseha. Ka lehlakoreng le leng, li-retarders li eketsa sekhahla sa ho tsoa ha mali hobane li lelefatsa nako eo metsi a e nkang ho nyolohela holim'a seretse se sa tsoa tsoakana.. Viscosity regulator e sebelisetsoa ho ntlafatsa viscosity ea ho kopanya metsi, ebe o lokisa sekhahla sa ho thella ha likaroloana tse tiileng, ho fihlella taolo ya ho dutla madi.

3.Ho hlophisoa ha konkreite aggregate

Aggregate gradation e loketseng, thusa ho fokotsa madi, e bonahatsoang haholo ke sekhahla sa lehlabathe, lehlabathe modulus likarolo tse peli.

Ha sekhahla sa lehlabathe se le nyane haholo, bokaalo ba seretse ha bo lekana, 'me lera le lekaneng la seretse le ke ke la thehoa ho pota-potiloe ke mahoashe bakeng sa lubrication le ho tlatsa, e tla fokotsa lero la motsoako, etsa hore momahano le ho boloka metsi a motsoako oa konkreite e be mafutsana, ho etsa hore motsoako wa konkreite o bonahale o le mahoashe, karohano e mahoashe, tahlehelo ea seretse sa samente, ho bonolo ho ntša metsi. Keketseho e loketseng ea sekhahla sa lehlabathe e ka fokotsa ho tsoa mali; Ho seng joalo, ho tsoa mali ho ka eketseha. Tšusumetso ea modulus ea lehlabathe metsing a tsoang mali ha e le hantle e bolela karolo e nyenyane ka ho fetisisa ea kakaretso, haholo-holo karolo eo boholo ba eona bo leng ka tlase ho 0.315mm, e bohlokoa haholo ts'ebetsong ea ho boloka metsi ea konkreite. Fokotsa modulus ea lehlabathe ka nepo, kapa eketsa seretse se lekaneng, thusa ho fokotsa mali a konkreite; Ho seng joalo, ho tsoa mali ho ka eketseha.

4 Motsoako oa konkreite

Ho tsoa mali ka konkreite ha e le hantle ho ka bonoa e le boemo bo botle ba karohano, metsi joalo ka mokhahlelo oa mokelikeli, likaroloana tsohle tse tiileng ke mohato o tiileng, mokhoa oa ho tsoa mali ke ho hanyetsa metsi viscous ha hoa lekana ho hlōla matla a khoheli a likaroloana tsa samente. Ebe u nahana ka ho eketsa lisebelisoa tse ntle tsa ho kopanya, joalo ka molora oa ntsintsi e ntle, molora oa silicon, hobane likaroloana tsena tsa lintho tse bonahalang li nyenyane, e se ke ya arohana le metsi, 'me metsi a tsoakane ka ho lekana a etsa karolo ea mokelikeli, ho eketsa viscosity ea mokelikeli, ho matlafatsa bokhoni ba ho thibela likaroloana tsa samente tlas'a phello ea ho rarolla matla a khoheli, ka hona ho ka fokotsa ho tsoa mali.

5 Samente

Tlatsetso ea samente ho tsoa mali a konkreite haholo-holo ke likarolo tse peli, e 'ngoe ke botle, e 'ngoe ke motsoako.

Keketseho ea botle ba samente e na le liphello tse peli tse ntle ho fokotsa ho tsoa mali. Ea pele, ho fokotseha ha boholo ba karolo ea samente ho bolela hore lebelo la sedimentation le fokotseha. Holim'a moo, e ntle ho feta likaroloana tsa samente, e kholoanyane sebaka se itseng sa bokahodimo, lebelo la ho arabela ka metsi, bophahamo ba viscosity, ka potlako ho condensation le ho thatafala ha tsamaiso e tla ba, ka hona ho lebisa ho fokotseha ha nako e sebetsang ea ho beha likaroloana tse tiileng, 'me kahoo ho fokotseha ha metsi a tsoang mali.

Mefuta e fapaneng ea metsoako ea samente e boetse e baka phapang ea sekhahla sa mali, e tshoanang le karolo ya motswako wa konkreite.

Ho tsoa mali ka konkreite ke sabole e sehang ka nģa tse peli, laola feela sekhahla se loketseng sa ho tsoa mali, e le ho etsa bonnete ba ho tšela konkreite e boreleli le ho thatafala ha matšoao. Lenane la metsi a tsoang mali le angoa ke lintlha tse ngata tse kang ho fokotsa metsi, motsoako, samente, aggregate, mocheso oa moea, ho kopanya karo-karolelano, le mokhoa oa ho haha. Ha ho fumanoa hore sekhahla sa mali sa konkreite se phahame haholo kapa se tlase haholo, likarolo tse amehang sebakeng se holimo le tlase, ho kenyelletsa le mekha ea kaho, lik'hamphani tsa konkreite, bafani ba thepa e tala, haholo-holo bahlahisi ba motsoako, e lokela ho nka mehato e nakong ho khetha leano le le leng kapa ho feta ho laola sekhahla sa ho tsoa ha mali ka mokhoa o lekaneng, e thusang ho fedisa dikotsi tse ipatileng le ho netefatsa boleng ba morero.

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