Khethollo ea metsoako ea konkreite:
1. Li-admixtures bakeng sa ho ntlafatsa thepa ea rheological ea metsoako ea konkreite, ho kenyelletsa le lisebelisoa tse fapaneng tsa ho fokotsa metsi, li-air-entraining agents le li-pumping agents.
2. Li-admixtures bakeng sa ho lokisa nako ea ho beha le ho thatafatsa thepa ea konkreite, ho kenyelletsa le li-retarders, li-agent tsa matla a pele le li-accelerator.
3. Li-admixtures bakeng sa ho ntlafatsa ho tšoarella ha konkreite, ho kenyelletsa le li-air-entraining agents, li-agent tse thibelang metsi le li-rust inhibitors, joalo-joalo.
4. Li-admixtures ho ntlafatsa thepa e 'ngoe ea konkreite, ho kenyelletsa le li-air-entraining agents, li-expansion agents, li-antifreeze agents, li-colorants, lisebelisoa tsa ho thibela metsi le li-pump, joalo-joalo.
Se fokotsa metsi:
Moemeli oa ho fokotsa metsi o bolela motsoako o ka bolokang ts'ebetso ea konkreite e sa fetohe le ho fokotsa haholo tšebeliso ea eona ea metsi.Kaha sesebelisoa sa ho fokotsa metsi se kenngoa ntlong ea ho kopanya, haeba tšebeliso ea metsi ea unit e sa fetoloe, ho sebetsa ha eona ho ka ntlafatsoa haholo, kahoo mochine oa ho fokotsa metsi o boetse o bitsoa plasticizer.
1. Mokhoa oa ts'ebetso oa moemeli oa ho fokotsa metsi Ka mor'a hore samente e kopane le metsi, likaroloana tsa samente li tla hohelana 'me li thehe lihlopha tse ngata ka metsing.Ka sebopeho sa floc, metsi a mangata a kopanyang a phuthetsoe, e le hore metsi ana a se ke a bapala karolo ea ho eketsa metsi a slurry.Ha moemeli oa ho fokotsa metsi a eketsoa, moemeli oa ho fokotsa metsi a ka senya mehaho ena e phallang 'me a lokolla metsi a sa lefelloeng a kentsoeng, kahoo a ntlafatsa metsi a motsoako.Nakong ena, haeba ts'ebetso ea konkreite ea pele e ntse e hloka ho bolokoa e sa fetohe, metsi a kopanyang a ka fokotseha haholo 'me phello ea ho fokotsa metsi e ka finyelloa, kahoo e bitsoa moemeli oa ho fokotsa metsi.
Haeba matla a lula a sa fetohe, palo ea samente e ka fokotsoa ha e ntse e fokotsa metsi ho fihlela sepheo sa ho boloka samente.
2. Litlamorao tsa tekheniki le tsa moruo tsa ho sebelisa sesebelisoa se fokotsang metsi li na le litlamorao tse latelang tsa tekheniki le moruo
a.Palo ea metsi a kopanyang e ka fokotsoa ka 5 ~ 25% kapa ho feta ha ts'ebetso ea ho sebetsa e ntse e sa fetohe 'me palo ea samente e sa fokotsehe.Kaha karo-karolelano ea samente ea metsi e fokotsehile ka ho fokotsa palo ea metsi a kopanyang, matla a ka eketsoa ka 15-20%, haholo-holo matla a pele a ntlafatsoa haholo.
b.Tlas'a boemo ba ho boloka motsoako oa pele oa motsoako o sa fetohe, ho theoha ha motsoako ho ka eketsoa haholo (100 ~ 200mm e ka eketsoa), ho etsa hore ho be bonolo bakeng sa kaho le ho finyella litlhoko tsa ho pompa kaho ea konkreite.
c.Haeba matla le ho sebetsa li bolokiloe, samente e ka bolokeha ka 10 ~ 20%.
d.Ka lebaka la ho fokotseha ha metsi a kopanyang, ho tsoa mali le ho arohana ha motsoako ho ka ntlafatsoa, e leng ho ka ntlafatsang ho hanyetsa serame le ho se khonehe ha konkreite.Ka hona, ho tšoarella ha konkreite e sebelisitsoeng ho tla ntlafatsoa.
3. Lisebelisoa tse fokotsang metsi tse sebelisoang hangata
Lisebelisoa tse fokotsang metsi haholo-holo li kenyelletsa letoto la lignin, letoto la naphthalene, letoto la li-resin, letoto la molasses le letoto la humic, joalo-joalo mofuta o mong le o mong o ka aroloa ka mokhoa o tloaelehileng oa ho fokotsa metsi, sesebelisoa sa ho fokotsa metsi se sebetsang hantle haholo, se fokotsang matla a pele a metsi, retarder ho latela mosebetsi o ka sehloohong.Setsi se fokotsang metsi, se fokotsang metsi a kenang moeeng, joalo-joalo.
Nako ea poso: Feb-18-2022