Letsatsi la poso: 12 Phup,2023
Lisebelisoa tse fokotsang metsi hangata ke li-anionic surfactants, 'me hona joale tse sebelisoang hangata' marakeng li kenyelletsa li-agent tse fokotsang metsi tse nang le acid e polycarboxylic, lisebelisoa tse fokotsang metsi tse thehiloeng ho naphthalene, joalo-joalo Ha li ntse li boloka ho putlama ho tšoanang ha konkreite, li ka fokotsa haholo metsi a sebelisoang ho kopanya. , ntlafatsa matla a konkreite, le ho fokotsa ho hlaha ha mapetsong. Ba phetha karolo ea bohlokoa ho laola ts'ebetso ea konkreite. Leha ho le joalo, motsoako oa konkreite o kopantsoeng le lisebelisoa tse fokotsang metsi li ka kopana le mathata a kang ho khomarela tanka le ho beha mabaka a fosahetseng. E le ho qoba ho hlaha ha mathata a fapaneng, Freeman o tla sekaseka lisosa le tharollo ea mathata ka bonngoe.

一. Ho ka etsahala ho khomarela:
Phenomenon: Karolo e 'ngoe ea seretse sa samente e khomarela lebota la silindara ea motsoako, e bakang ho sa lekane le ho fokotseha ha molora oa konkreite, ho fella ka konkreite e khomarelang.
Tlhahlobo ea mabaka:
Ho khomarela konkreite hangata ho etsahala ka mor'a ho eketsa li-retarders le lisebelisoa tse fokotsang metsi, kapa ka li-mixer tsa meropa tse nang le li-axial diameter tse tšoanang.
Melao ea ho rarolla:
(1) Ho ela hloko ka nako ho hloekisa le ho tlosa konkreite e setseng;
(2) Ntlha ea pele, eketsa li-aggregates le metsi a mang ho kopanya, ebe u eketsa samente, metsi a setseng, le ntho e fokotsang metsi ho kopanya;
(3) Sebelisa tekanyo e kholo ea bophara ba shaft kapa motsoako o qobelloang.

二.Pseudo coagulation phenomenon
Phenomenon: Konkreite ka mor'a hore e tlohe mochineng e lahleheloa ke metsi ka potlako 'me ha e khone ho tšeloa.
Tlhahlobo ea mabaka:
(1) Ho haella ha calcium sulfate le gypsum ka samenteng ho lebisa ho potlakisang metsi a calcium aluminate;
(2) Setsi se fokotsang metsi se na le maemo a fokolang a ho ikamahanya le mofuta ona oa samente;
(3) Ha litaba tsa triethanolamine li feta 0.05-0.1%, boemo ba pele bo potlakile empa e se boemo ba ho qetela.
Melao ea ho rarolla:
(1) Fetola mofuta oa samente;
(2) Haeba ho hlokahala, fetola li-admixtures 'me u etse motsoako o utloahalang;
(3) Kenya karolo ea Na2SO4 ho motsoako.
(4) Fokotsa mocheso o kopanyang