Te horopeta me te inu wai o te polycarboxylate superplasticizer:

Ko te polycarboxylate superplasticizerhe nga ahuatanga o te inenga iti me te whakaheke wai nui.A, no te te inenga he 0.15-0.3%, ka taea e te reiti whakaheke wai te tae ki te 18-40%.Heoi, ina he iti te owehenga wai-ki-binder (i raro iho i te 0.4), ka nui ake te tairongo o te inenga i te wa e teitei ana te tauwehenga wai-binder.Ko te reiti whakaheke wai opolycarboxylate superplasticizerhe rereke ki te nui o nga rauemi cimentitious.I raro i nga tikanga ano, ko te reiti whakaheke wai o te nui o nga mea cimentitious iti iho i te 3 he iti iho i te 400kg/m3, a ka ngawari te warewarehia tenei rereketanga.Engari, i roto i te tukanga o te whakamahi, ka kitea ko tenei tikanga tawhito e kore e pai moKo te polycarboxylate superplasticizer, na te mea nuiKo te polycarboxylate superplasticizerhe tairongo ake ki te kohi wai atu i nga superplasticizers tuku iho.Ka whakahekehia te kohi wai, kaore e taea te whakatutuki i te kaha o te mahi o te raima;i te wa e nui ana te kai wai, ahakoa ka nui haere te paheketanga, ka nui te rere o te toto me te iti o te wehenga, ka pa te kino ki te mahi katoa o te raima.Ka nui te raruraru i roto i te hanganga o te waahi.He nui te awe o te pāmahana ki te nui opolycarboxylate superplasticizer.I roto i te mahi, ka kitea he iti te nui o te whakaurunga e whakamahia ana i roto i nga mahi hanga noa i te awatea i te po (kei raro iho te pāmahana i te 15 ℃), a he maha nga wa ka paheke "Hoki ki te nui", tae noa ki te toto me te wehewehe.

He tino whiriwhiri te raima mo te waahi whakamarumaru me te kohi wai o te kaihoko whakaheke wai.Ka nui ake te taikaha, ka puta nga ahuatanga kino penei i te wehewehenga, te whakaheke toto, te rere slurry, te whakapakeke me te hau nui o te hau.

(1) Me whakahaere ano te whakamatautau ranunga me nga rauemi mata kua whakarereketia hei whakatika i te inenga kia pai ai te painga;

(2) Te inenga opolycarboxylate superplasticizerme tino whakahaere te kohi wai o te raima i te wa e whakamahia ana;

(3) I roto i te whakamatautau raima o te kaihoko whakaheke wai mo nga rauemi mata, ngana ki te whakatika i te kaihoko whakaheke wai ki te momo "mangere" ki te whakatutuki i te kaupapa o te kore e aro ki nga rauemi mata me te kohi wai.