(1) hom thiab qhov zoo ntawm admixtures
Txhua hom dej-txo cov neeg ua haujlwm muaj kev cuam tshuam sib txawv ntawm kev nce fluidity. Nyob rau hauv qee qhov ntau, kev tshaj tawm ntxiv nce nrog qhov nce ntawm cov tshuaj ntau dua, tab sis cov txiaj ntsig ntawm kev nce fluidity lawm tom qab nce mus txog qee yam ntau npaum li cas, uas yog, muaj qhov tseem ceeb npaum li cas.Lub ntsiab lus tseem ceeb ntawm sodium ntsev system yog li 1.0% .Cov ntsiab lus tseem ceeb ntawm sodium ntsev system ntawm creosote sulfonate condensate tau txog 1.0%. Cov ntsiab lus tseem ceeb ntawm sodium series ntawm qhov tsis tshua muaj siab naphthalene sulfonate condensate tau txog 1.2%. Cov ntsiab lus tseem ceeb ntawm sodium sulfonate ntawm melamine formaldehyde cob tau li 1.5%. cov ncauj lus tseem ceeb ntawm calcium gluconate, sodium lignosulfonate thiab polyvinyl phenolic ether tau txog 0.5%.
(2) tus naj npawb ntawm lub cev nuclear thiab ntev ntawm cov saw molecular ntawm cov ntsuas dej
Hauv kev kawm qib pib ntawm -naphthalene sulfonate-formaldehyde condensates, nws tau ua pov thawj tias cov ntsiab lus tseem ceeb ntawm cov dej tso tus neeg sawv cev tau nce ntxiv nrog qhov nce ntawm cov naj npawb ntawm nuclei thiab cov ntawv cog lus molecular.
(3) dej-cement piv ntawm xis mas slurry
Cov txiaj ntsig sim qhia tau hais tias qhov kev npliag ntawm cov cement slurry nce nrog qhov sib ntxiv ntawm naphthalene series dej tsim tawm, tab sis cov txiaj ntsig thiab cov ntsiab lus tseem ceeb nrog qhov sib txawv ntawm cov dej-cement piv.Thaum cov dej tshauv yog qhov tsawg, cov ntsiab lus tseem ceeb yog loj , thiab thaum cov dej tshauv yog qhov siab siab, cov ntsiab lus tseem ceeb yog me me.
