2. Ha e sebelisoa hammoho le mefuta e meng ea lisebelisoa tsa ho fokotsa metsi, ha ho na phello e phahameng.

Nakong e fetileng, ha ho etsoa konkreite, mofuta oa mochine oa ho pompa o ne o ka fetoloa ka thato, 'me thepa ea motsoako oa konkreite e ne e ke ke ea fapana haholo le liphello tsa laboratori, leha e le hore ho ne ho ke ke ha e-ba le phetoho ea tšohanyetso ea thepa ea motsoako oa konkreite. .

Ha li-agent tse fokotsang metsi tse thehiloeng ho polycarboxylic acid li sebelisoa hammoho le mefuta e meng ea lisebelisoa tse fokotsang metsi, ho thata ho fumana litlamorao tse phahameng, le ho qhibiliha ka bobeli lipakeng tsa tharollo ea metsi e thehiloeng ho polycarboxylic acid le mefuta e meng ea metsi- ho fokotsa litharollo tsa moemeli ho fosahetse ka tlhaho.

3. Ha ho na phello ea phetoho ka mor'a ho eketsa likarolo tse tloaelehileng tse sebelisoang ho fetola.

Hajoale, ho na le matsete a fokolang lipatlisisong tsa mahlale mabapi le li-agent tse fokotsang metsi tse thehiloeng ho polycarboxylic acid. Maemong a mangata, sepheo sa lipatlisiso tsa mahlale ke ho ntlafatsa feela phello ea eona ea polasetiki le ho fokotsa metsi. Ho thata ho rala meaho ea limolek'hule ho latela litlhoko tse fapaneng tsa boenjiniere. Letoto la lisebelisoa tse fokotsang metsi tse thehiloeng ho polycarboxylic acid tse nang le litlamorao tse fapaneng tsa ho khutlisa le ho potlakisa, ha ho na lintho tse kenang moeeng kapa tse fapaneng tse kenyang moea, le li-viscosity tse fapaneng li entsoe. Ka lebaka la ho se tsitse le ho se tsitse ha samente, li-admixtures le li-aggregate mererong, ho bohlokoa haholo hore baetsi ba motsoako le barekisi ba kopanye le ho fetola lihlahisoa tsa motsoako o fokotsang metsi oa polycarboxylate ho latela litlhoko tsa projeke.

Hona joale, mehato ea botekgeniki bakeng sa ho fetola metsoako ea li-agent tse fokotsang metsi ha e le hantle e itšetlehile ka mehato ea phetoho ea mekhoa e tloaelehileng ea ho fokotsa metsi e kang lignosulfonate series le naphthalene series e sebetsang hantle haholo ho fokotsa metsi. Liteko li pakile hore mehato e fetileng ea ntlafatso ea tekheniki ha e hlile ha e tšoanelehe bakeng sa lisebelisoa tse fokotsang metsi tse thehiloeng ho polycarboxylic acid. Ka mohlala, har'a likarolo tse fokolang tse sebelisetsoang ho fetola li-agent tse fokotsang metsi tse thehiloeng ho naphthalene, sodium citrate ha e tšoanelehe bakeng sa li-polycarboxylic acid tse fokotsang metsi. Hase feela hore ha e na phello ea ho lieha, e ka potlakisa coagulation, 'me tharollo ea sodium citrate The miscibility le li-polycarboxylic acid-based-reduction agents tse fokotsang metsi le tsona li futsanehile haholo.

Ho feta moo, mefuta e mengata ea li-defoaming agents, li-air-entraining agents le li-thickeners ha li tšoanelehe bakeng sa lisebelisoa tse fokotsang metsi tse thehiloeng ho polycarboxylic acid. Ka liteko le tlhahlobo e kaholimo, ha ho thata ho bona hore ka lebaka la sebopeho sa limolek'hule tsa li-agent tse fokotsang metsi tse thehiloeng ho polycarboxylic acid, ho ipapisitsoe le botebo ba lipatlisiso tsa mahlale le ho bokella boiphihlelo ba ts'ebeliso ea boenjiniere sethaleng sena, phello e tla ba teng. ea polycarboxylic acid e fokotsang metsi ka li-superplasticizers tse thehiloeng ho polycarboxylic acid ka likarolo tse ling tsa lik'hemik'hale Ha ho na mekhoa e mengata ea ho fetola li-agent tse fokotsang metsi, 'me ka lebaka la likhopolo le litekanyetso tse thehiloeng nakong e fetileng bakeng sa phetoho ea mefuta e meng ea ho fokotsa metsi. mahlahana, lipatlisiso tse tebileng le lipatlisiso li ka hlokahala bakeng sa lisebelisoa tse fokotsang metsi tse thehiloeng ho polycarboxylate. Etsa litokiso le litlatsetso.

4. Botsitso ba ts'ebetso ea sehlahisoa bo bobe haholo.

Ha se lik'hamphani tse ngata tsa konkreite tse fokotsang metsi tse ka nkoang e le lik'hamphani tse ntle tsa lik'hemik'hale. Lik'hamphani tse ngata li lula feela sethaleng sa pele sa tlhahiso ea li-mixer le mechine ea ho paka, 'me boleng ba sehlahisoa bo lekanyelitsoe ke boleng ba masterbatch. Mabapi le taolo ea tlhahiso, ho se tsitse ha mohloli le boleng ba thepa e tala e 'nile ea e-ba ntho e ka sehloohong e senyang ts'ebetso ea li-superplasticizers tse thehiloeng ho polycarboxylic acid.