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Karolo ea ho eketsa phofo ea khalase nakong ea tlhahiso ea samente ke efe?

Naha ea rona ke "moreki e moholo oa lisebelisoa" oa likhalase.Ka tsoelo-pele e potlakileng ea moruo, tšebeliso ea likhalase e ntse e eketseha letsatsi le letsatsi, 'me ho lahla likhalase tsa litšila ho fetohile taba e meutloa.Karolo e ka sehloohong ea khalase ke silika e sebetsang, kahoo ka mor'a hore e siloe ka phofo, e ka ba le ts'ebetso ea pozzolanic 'me e ka sebelisoa e le motsoako oa ho lokisa konkreite.Sena se ke ke sa rarolla bothata ba ho lahla likhalase tsa litšila feela, empa hape se khothalletsa nts'etsopele ea lisebelisoa tsa mohaho tse tala le tse sireletsang tikoloho.Mechine ea HCMke moetsi oa leloala la ho sila.Leloala leo re le hlahisang ke lisebelisoa tse sebelisetsoang ho sila phofo ea khalase.Kajeno ke tla u tsebisa karolo ea phofo ea khalase holim'a samente.

 

Ka ho hlahloba teko ea matla a khatello ea konkreite e kopantsoeng le phofo ea khalase le liphetho tsa tlhahlobo ea microscopic ea pente ea samente, ho ka fihleloa qeto ea hore le hoja CaO ea phofo ea khalase e ka itšoara ka metsi, e fokola haholo.Ka hona, ho ka nkoa hore phofo ea khalase ha e na boima ba hydraulic.Ha palo e kopanyang ea phofo ea khalase e le 10%, mohlala, silika e sebetsang, alumina le calcium hydroxide ka har'a phofo ea khalase li itšoara ka mokhoa o tlaase oa alkalinity hydrated calcium silicate.Silika e sebetsang e ka boela ea itšoara ka silicate e phahameng ea alkalinity hydrated calcium.Calcium silicate hydrate e arabela ho hlahisa hydrate e tlase ea alkali calcium silicate.Ha ho ntse ho fokotsa calcium hydroxide content, karolo ea hydrated calcium silicate e hlahisoa, e leng ho ntlafatsang ho teteana le ho se khonehe ha slurry e thata;e sebetsana le sehlahisoa sa samente sa hydration calcium hydroxide (Ca (OH) 2) ho hlahisa metsi Hydrated calcium silicate e fokotsa litaba tsa Ca (OH) 2 ka konkreite, e eketsa litaba tsa hydrated calcium silicate, 'me e ntlafatsa matla a konkreite. khalase ea phofo ea khalase e fihla ho 20%, hobane lihlahisoa tsa samente li fokotseha, li-hydrate tse hlahisoang ke samente hydration li boetse li fokotseha, empa phofo ea khalase e arabela ka samente hydrates ho theha karolo e itseng ea hydrated calcium silicate. e ntse e ka bapisoa le konkreite ea benchmark.Ha palo ea phofo ea khalase e ntse e eketseha 'me lihlahisoa tsa samente li fokotseha butle-butle, lihlahisoa tsa hydration li fokotseha,' me phofo ea khalase e arabela ka samente hydrates Ho eketseha ha hydrate ha hoa lekana ho lefella ho fokotseha ha lihlahisoa tsa hydration tse bakoang ke ho fokotseha hoa samente.Ka hona, matla a ntse a fokotseha.Ho boetse ho fumanoa hore ha palo ea phofo ea khalase e le ngata haholo, ho tla hlaha mapetsong.

Ke karolo efe ea ho eketsa phofo ea khalase nakong ea tlhahiso ea samente

Lebaka ke hobane ha palo ea samente e fokotsehile, tlhokahalo ea silica e sebetsang e kenyang letsoho karabelong ea hydration le eona e fokotsehile.Silika e setseng e sebetsang e sebetsana le lintho tsa alkaline ka phofo ea khalase, e bakang katoloso e ka hare ea konkreite.Sekhomaretsi sa samente se thata le sona se tla peperana ebe se hlahisa mapetso a maholoanyane, 'me matla a konkreite le ona a tla fokotseha.

 

Phello ea phofo ea khalase holim'a samente:

(1) Matla a khatello ea matsatsi a 28 a konkreite e lokiselitsoeng ka phofo ea khalase e bonaletsang e se nang mebala le phofo ea khalase e tala e kopantsoeng le 10% le 15% ea samente sebakeng sa samente e phahame ho feta ea konkreite ea tekanyetso;ha tekanyo e le 20%, matla a tšoana le a konkreite ea benchmark.Ho bapisoa le konkreite;ha tekanyo e le 30% le ka holimo, matla a khatello ea konkreite a fokotseha haholo.

 

(2) Ha ho sa tšeloe phofo ea khalase, calcium hydroxide e phatsima hantle ’me e ba kholoanyane ka boholo.Ha palo ea phofo ea khalase e ntse e eketseha, litaba tsa calcium hydroxide li fokotseha butle-butle 'me crystallization e mpefala le ho feta.

 

(3) Ho eketsa phofo ea khalase ea mebala e fapaneng ha e na tšusumetso e kholo ho matla a konkreite.

 

(4) Phofo ea khalase e sebelisoa ho lokisa konkreite 'me e na le liphello tse ntle tsa tikoloho.

 

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Nako ea poso: Dec-04-2023