Letsatsi la poso: 20, Mots'eanong, 2024

7. Ha motsoako oa polycarboxylic acid o kopantsoe ka teko (ka tlhahiso), ha tekanyo ea motheo e fihla feela, ts'ebetso ea pele ea ho sebetsa ea konkreite e tla khotsofatsoa, ​​empa tahlehelo ea konkreite e tla ba kholoanyane;ka hona, nakong ea ho kopanya liteko (tlhahiso), chelete e lokela ho eketseha ka mokhoa o nepahetseng.Ke feela ka ho lokisa litekanyetso (ke hore, ho fihlela tekanyo ea saturation) bothata ba tahlehelo e kholo ea ho putlama bo ka rarolloa.

8.Ka mor'a ho fokotsa bongata ba lisebelisoa tsa samente, tekanyo ea metsi-samente e lokela ho tiisetsoa ka thata nakong ea tlhahiso.Haeba tahlehelo ea ho putlama e le kholo, tsela e le 'ngoe feela ke ho eketsa bongata ba motsoako le ho eketsa motsoako habeli.U se ke ua eketsa metsi ho rarolla bothata, ho seng joalo ho tla baka ho fokotseha ho hoholo ha matla habonolo.

9. Moemeli oa ho fokotsa metsi a polycarboxylate ke sehlahisoa se nang le tekanyo e phahameng ea ho fokotsa metsi le ho hasana ho phahameng.Taolong ea tlhahiso, index ea fluidity (katoloso) ea konkreite e lokela ho sebelisoa ho lekanya ho sebetsa ha konkreite.Slump e ka sebelisoa feela e le boleng ba litšupiso.

10. Matla a konkreite a khethoa haholo-holo ka karolelano ea metsi-binder.Moemeli oa ho fokotsa metsi a polycarboxylate o na le litšobotsi tsa sekhahla se phahameng sa ho fokotsa metsi, se ka fokotsang tšebeliso ea metsi habonolo ka karolelano ea motsoako oa tlhahiso, ka hona ho finyella sepheo sa ho fokotsa tekanyo ea ho kopanya metsi le ho fokotsa matla a konkreite.theko e akaretsang.Kaha lihlahisoa tse tala li fetoha haholo nakong ea tlhahiso ho feta nakong ea tlhahlobo, molemong oa ho sebelisa hantle ts'ebetso ea lihlahisoa tsa polycarboxylate superplasticizer, li-admixtures li lokela ho fetoloa ka nako ho latela tšusumetso ea maemo a lihlahisoa tse tala, liphetoho tsa mocheso o teng, jj. konkreite nakong ea tlhahiso.Tekanyetso.

11. Li-polycarboxylic acid tse fokotsang metsi li ke ke tsa kopanngoa le li-naphthalene tse fokotsang metsi.Ha o sebelisa polycarboxylic acid e fokotsang metsi, mochini o kopanyang le teraka ea motsoako o sebelisitseng lisebelisoa tse fokotsang metsi tse thehiloeng ho naphthalene li tlameha ho hlatsuoa li hloeke, ho seng joalo ntho e fokotsang metsi ea polycarboxylic acid e ka senyeha.Moemeli oa ho fokotsa metsi o lahleheloa ke phello ea oona ea ho fokotsa metsi.

12. Polycarboxylate superplasticizer e lokela ho qoba ho kopana ka nako e telele le lisebelisoa tsa tšepe.Kaha lihlahisoa tsa li-agent tse fokotsang metsi tsa polycarboxylate hangata li na le asiti, ho kopana ka nako e telele le lihlahisoa tsa tšepe ho tla baka karabelo e liehang, e ka ba ea fifatsa kapa ea ntšofatsa 'mala, e leng se bakang ho theoha ha ts'ebetso ea sehlahisoa.Ho khothalletsoa ho sebelisa linkho tsa polasetiki tsa polyethylene kapa linkho tsa tšepe tse sa hloekang bakeng sa polokelo ho netefatsa botsitso ba ts'ebetso.