Superplastizer (i)

Usuku lwePost: 9, Meyi, 2022

(一) Ukuguquguquka kwepolycarboxylate superplastimizer nezinto zokwakha cemeraza:

Ekusebenzeni, sekutholakele lokhoPolycarboxylate superplastimizerYiba nezinkinga ezisobala eziguqukayo kumamitha ahlukene nezinhlobo ezahlukahlukene zama-mineral admixtures, futhi kwesinye isikhathi zikhetha kakhulu. Ukuzivumelanisa nezimo phakathi kosimende kanyepolycarboxylate superplastimizer izothinteka ezintweni eziningi. Njenge: Izakhi zokwehla, indawo ethile engaphezulu, okuqukethwe kwe-alkali, okuqukethwe kwe-gypsum nezinhlobo zonke kunomthelela ekuguqukeni kwePolycarboxylate superplastimizer.

Iphuzu lokugcwala kwePolycarboxylate superplastimizerUkuze amakhethini ahlukene ahlukile, izinga lokunciphisa amanzi liyancishiswa, ukulahleka kokhonkolo kwe-slump kukhuphukile, kuvela into ethi "i-bean curd residi" lapho kufakwa khona i-slurry, kanye nezinkinga zokopha, kanye nobunzima bokupompa , Uzwela umthamo, ukhonkolo awukwazi ukuvulwa noma ukhishwe ngokweqile. Isibonelo, okuqukethwe kwepolycarboxylate superplastimizer Ukuze usimende kungu-1.8% (okuqukethwe okuqinile kwe-10%) ukuthola isimo esanelisayo, kanti u-B u-clement udinga ukuxutshwa nge-2.2% ukuthola isimo esingcono, futhi kwesinye isikhathi uma esedlula i-DOSAGE, i-Concrete Ingxube ithambekele ukopha.

Njengamanje, ngokuya ngokuvumelana kwezimo zePolycarboxylate superplastimizer, izixazululo zinjengokulandelayo:

.

(2) Utshwala bamama buhlanganiswa nge-ether lipids kanye nomthamo kukhuphuke ngokufanele. Ngokuvamile, kunconywa ukuthi izindlebe nama-lipid 5: 5 zinomphumela ongcono, futhi umthamo kufanele ukhuphuke ngo-0.2%;

. Isitashi esiguquliwe kanye nabanye abathengi abahlanganisiwe, besebenzisa incibilize iselula, i-xanthan gum, i-dextrin, eguquliwe ukuncibilika okukhulu, noma ukungeza "isibabule" noma "alkali" ku-ukhonkolo kungathuthukiswa;

.

Okwe-Admixtures, ithonya le-Fly Ash ngokusobala likhulu kunaleso se-slag powder. Ngokuvamile, umlotha we-Fly Fly-Fly Well-Fly uneziqubu ezinhle, kanti umlotha we-Fly yesibili- neyesithathu uvame ukungavumelani, ikakhulukazi umlotha wendiza webanga lesithathu. Lapho ikhwalithi yomlotha imbi, umphumela wokwandisa umthamo wepolycarboxylate superplastimizerNgokuhamba kwesikhathi ayisakwenziwa ngcono kakhulu. Isizathu esiyinhloko salesi simo ukuthi okuqukethwe yi-carbon umlotha wesibili nokwamabanga aphakeme ngokulahleka okuphezulu kukhulu, futhi amandla we-adsorption we-admixtures kukhulu, futhi anciphise ama-adpixtures ku-cement, ethinta uketshezi lwekhonkolo. Lapho usebenzisa i-Grade III Fly Ash, khulisa okuqukethwe kwama-polycarboxylate wamanzi anciphisa ngaphezu kwama-50%, ukuze kufinyelelwe isilinganiso sokunciphisa amanzi lapho uxubana nebanga lendiza umlotha. Lapho ubhekene nomlotha wanamuhla we-Fly Ash ngekhwalithi eyinkimbinkimbi nezakhi ezihlukile, kuyadingeka ukuqinisa ukulawulwa kwekhwalithi komlotha we-fly futhi uqinise ukuhlolwa lapho usebenzisa polycarboxylate superplastimizer.