Tšebeliso ea Lisebelisoa tsa Metsi, Retarders, le Superplasticizers

Lisebelisoa tsa metsi, li-retarders, le li-superplasticizers ke metsoako ea lik'hemik'hale e sebelisoang ho eonametsoako ea konkreiteho ntlafatsa thepa e khethehileng le ho ntlafatsa ts'ebetso ea konkreite nakong ea linaha tsa eona tse ncha le tse thata.E 'ngoe le e 'ngoe ea metsoako ena e na le morero o ikhethang,' me hangata e sebelisoa mererong ea kaho ho fihlela litšobotsi tse lakatsehang tsa konkreite.Ha re hlahlobeng ts'ebeliso ea lisebelisoa tse fokotsang metsi, li-retarders le li-superplasticizer ka botlalo:

1. Lisebelisoa tsa Metsi:

Morero:

• Ho Fokotsa Metsi: Lisebelisoa tsa metsi, tse tsejoang hape e le lisebelisoa tse fokotsang metsi kapa li-plasticizers, li sebelisetsoa ho fokotsa metsi a hlokahalang ka motsoako oa konkreite ntle le ho senya ho sebetsa ha oona.

Melemo ea Bohlokoa:

• Mosebetsi o Ntlafetseng: Ka ho fokotsa metsi a metsi, ho fokotsa metsi ho ntlafatsa ho sebetsa le ho kopana ha motsoako oa konkreite.
• Matla a Eketsehileng: Ho fokotseha ha metsi hangata ho lebisa ho matla a holimo a konkreite le ho tšoarella.
• Ntlafatso e Ntlafetseng: Konkreite e nang le lisebelisoa tsa metsi hangata e bonolo ho e qeta, e bakang sebaka se boreleli.

Lisebelisoa:

• High-Strength Concrete: Lisebelisoa tsa metsi li atisa ho sebelisoa ha ho etsoa konkreite e matla haholo moo likarolo tse tlaase tsa samente ea metsi li leng bohlokoa.
• Pumping Concrete: Ba thusa ho pompa konkreite libakeng tse telele ka ho boloka mokelikeli o le mong.

2. Li-retarders:

Morero:

• Ho lieha ho beha nako: Li-retarders ke li-admixtures tse etselitsoeng ho fokotsa nako ea ho beha konkreite, e lumellang nako e telele ea ho sebetsa.

Melemo ea Bohlokoa:

• Mosebetsi o Atolositsoeng: Li-retarders li thibela ho behoa pele ho nako ea konkreite, ho fana ka nako e eketsehileng ea ho kopanya, ho tsamaisa le ho beha thepa.
• Ho Fokotsa Mapetso: Linako tse butle-butle li ka fokotsa kotsi ea ho petsoha, haholo-holo maemong a leholimo a chesang.

Lisebelisoa:

• Hot Weather Concreting: Maemong ao mocheso o phahameng o ka potlakisang ho beha konkreite, li-retarders li thusa ho laola nako ea ho beha.
• Merero e Meholo ea Kaho: Bakeng sa merero e meholo moo lipalangoang le ho beoa ha konkreite li nkang nako e telele.

3. Li-Superplasticizers:

Morero:

• Ho ntlafatsa ts'ebetso ea ts'ebetso: Li-superplasticizers, tse tsejoang hape e le ho fokotsa metsi a mangata, li sebelisetsoa ho eketsa haholo ts'ebetso ea konkreite ntle le ho eketsa metsi.

Melemo ea Bohlokoa:

• Mosebetsi o Phahameng: Li-Superplasticizers li lumella ho hlahisa konkreite e sebetsang haholo le e phallang ka tekanyo e tlaase ea samente ea metsi.
• Matla a Eketsehileng: Joalo ka li-conducers tsa metsi, li-superplasticizers li kenya letsoho ho matla a konkreite e phahameng ka ho nolofalletsa likarolo tse tlase tsa samente ea metsi.

Lisebelisoa:

• Self-Compacting Concrete (SCC): Li-superplasticizers li atisa ho sebelisoa ha ho etsoa SCC, moo ho nang le phallo e phahameng le thepa ea boipheliso e hlokahalang.
• Konkreite e Phahameng ka ho Fetisisa: Lits'ebetsong tse hlokang matla a phahameng, ho tšoarella, le ho fokotsa ho kenella.

Maikutlo a Tloaelehileng:

1. Ho lumellana: Li-admixtures li lokela ho lumellana le lisebelisoa tse ling ka har'a motsoako oa konkreite, ho kenyeletsoa samente, li-aggregates le li-additives tse ling.
2. Taolo ea Tekanyetso: Taolo e nepahetseng ea litekanyetso tse kopaneng e bohlokoa ho fihlela thepa e lakatsehang ea konkreite.Tšebeliso e feteletseng e ka baka liphello tse mpe.
3. Teko: Liteko tsa khafetsa le mehato ea taolo ea boleng li bohlokoa ho netefatsa katleho ea li-admixtures motsoakong o khethehileng oa konkreite.
4. Litlhahiso tsa Moetsi: Ho latela likhothaletso le litataiso tse fanoeng ke moetsi oa motsoako ho bohlokoa bakeng sa ts'ebetso e nepahetseng.

Qetellong, ts'ebeliso ea lisebelisoa tse fokotsang metsi, li-retarders, le li-superplasticizer ka har'a motsoako oa konkreite li fana ka melemo e mengata, ho tloha ho ts'ebetso e ntlafalitsoeng le linako tse atolositsoeng tsa ho beha nako ho isa ho matla le ho tšoarella ho matla.Ho utloisisa litlhoko tse khethehileng tsa morero oa kaho le ho khetha motsoako o loketseng kapa motsoako oa metsoako ho bohlokoa bakeng sa ho finyella thepa ea konkreite e lakatsehang.Litekanyetso tsa li-admixture le meralo ea motsoako oa konkreite li lokela ho reroa le ho lekoa ka hloko ho netefatsa ts'ebetso e nepahetseng le ho tšoarella ha nako e telele ea konkreite.