Umhla wokuThumela:23,Oct,2023
Abavelisi be-arhente yokunciphisa amanzi bavelisa ii-arhente zokunciphisa amanzi, kwaye xa bethengisa ii-agent zokunciphisa amanzi, baya kuqhoboshela umxube we-agent yokunciphisa amanzi. Umlinganiselo waManzi-samente kunye nomlinganiselo womxube wekhonkrithi uchaphazela ukusetyenziswa kwei-polycarboxylate superplasticizer. Iipolycarboxylate superplasticizerszinovelwano kakhulu kusetyenziso lwamanzi oluphathekayo. Xa ulungiselela ikhonkrithi yeC50 kwiprojekthi, uyilo lokuqala lomlinganiselo waManzi-samente wawuyi-0.34%. Uvavanyo lwafumanisa ukuba ulwelo lwamanzi lwaluhlwempuzekile, ngoko ke umlinganiselo waManzi-samente wahlengahlengiswa waba yi-0.35%, kwaye ukusetyenziswa kwamanzi kwi-cubic meter nganye kwanda ngeekhilogram ezininzi.
Nangona i-slump iye yanda, kusekho inani elikhulu le-seepage kunye nokuhlukana, okuchaphazela ukufana okupheleleyo kwekhonkrithi. Ukongeza inani elincinci le-arhente yokugcina amanzi kubangele ingxaki enkulu kwiyunithi yokwakha. Ubungakanani besanti yekhonkrithi ikwachaphazela isiphumo sokusetyenziswa kwepoly Carboxylate superplasticizer. Xa usebenzisa i-agent esetyenziswa ngokuqhelekileyo yokunciphisa amanzi asebenzayo, umlinganiselo wesanti unokunyuswa ngokufanelekileyo kwaye umbane wekhonkrithi unokuphuculwa.
Xa ixutywe nei-polycarboxylate superplasticizer, umlinganiselo wesanti uphezulu kwaye ukumanzi kwekhonkrithi kubi. Ikhonkco lemveliso yei-polycarboxylate superplasticizeruhlobo lwe-agent zokunciphisa amanzi kunye ne-air intrainment iqulethe i-carboxyl adsorption genes kwaye inenani elikhulu lamasebe. Iintambo zecala le-polyether zibonelela ngesithintelo se-steric, ngelixa iipolyethers zineempawu eziphefumla ngakumbi.
Ngenxa yomahluko kwiinkqubo zokuvelisa kunye nokwahluka kobunzima bemolekyuli kwizinto ezisetyenziswa ngabavelisi abahlukeneyo, kukho umahluko omkhulu kumthamo wokungena emoyeni. Phakathi kweemveliso ezininzi zePoly Carboxylate superplasticizer esizivavanyileyo, izinga lokopha elisezantsi laliyi-3% kuphela, elingaphezulu sisi-6%, kwaye ezinye iimveliso zade zafikelela kwi-8%.
Ngoko ke, xa usebenzisa ama-agent okunciphisa amanzi aphezulu, kuyimfuneko ukuqhuba uvavanyo ngaphambi kokusetyenziswa ngokusemthethweni, uze udibanise ngokwemeko yangempela yeprojekthi.
Ixesha lokuposa: Oct-23-2023
