Hnub Kawg: 29 Lub Ib Hlis, 2024
Tam sim no, kev siv ntawmpolycarboxylate superplasticizerCov dej txo cov neeg ua haujlwm yog feem ntau hauv kev tsim kho, vim tias lawv cov khoom ua tau zoo tuaj yeem txhim kho lub zog thiab kev tsim vaj tsev zoo. Cov khoom no yog ntsuab, tsis muaj hluav taws kub, thiab tsis tawg, thiab tuaj yeem thauj mus los ntawm tsheb ciav hlau thiab tsheb. Thaum cov dej txo tus neeg sawv cev nce mus txog 0.9% ~ 1.1%, qhov poob ntawm cov pob zeb nrog cov dej cement piv ntawm 0.12-0.16 thiab cov xuab zeb cov ntsiab lus ntawm 38% tseem tuaj yeem khaws cia siab tshaj 250mm rau 2 teev, qhov nthuav dav tuaj yeem ncav cuag 600mm, Lub sijhawm teem sijhawm kawg yog nyob rau hauv 24 teev, thiab tsis muaj qhov tshwm sim sib cais. Lub zog compressive ntawm 90 hnub yog siab tshaj 180MPa.Yog li nws ua lub luag haujlwm tseem ceeb hauv kev tsim kho, thiab cov hauv qab no yuav qhia txog nws qhov zoo.
1. Cov ntsiab lus alkali thiab chloride ion cov ntsiab lus yog tsawg heev, thiab qhov sib ntxiv ntawmpolycarboxylate superplasticizerniam cawv tsis ua rau kev puas tsuaj rau cov hlau tuav thiab tsis muaj kev cuam tshuam rau cov pob zeb. Nyob rau tib lub sijhawm, cov khoom tsis ntsev tawm los yog crystallize thaum lub caij kub, ua rau nws yooj yim rau siv.
2. Nws yog qhov muaj txiaj ntsig zoo rau kev ua haujlwm ntawm cov pob zeb sib xyaw ua ke, txo cov ntshav, txhim kho cov tsos zoo thiab ua haujlwm ntev ntawm cov pob zeb tawv tawv, thiab tshwj xeeb tshaj yog siv rau hauv cov pob zeb ua vaj tse.
3. Lub pob zeb npaj nrogpolycarboxylate superplasticizerdej txo tus neeg sawv cev niam cawv yuav tsis pom pom kev sib cais lossis los ntshav txawm tias nyob rau hauv qhov kev poob qis, thiab cov xim ntawm cov pob zeb zoo ib yam. Thaum siv los npaj cov pob zeb qib siab, cov pob zeb muaj kev ua haujlwm zoo, kev sib koom ua ke zoo, thiab yooj yim sib xyaw.
Yog li polycarboxylate dej txo cov neeg ua haujlwm yog qhov tsim nyog rau kev tsim kho. Thaum siv, lawv feem ntau yog ntxiv rau hauv kev faib ua feem, uas tsis yog tsuas yog ua rau qhov project ruaj khov tab sis kuj txo ntau yam kev phom sij. Tsuas yog los ntawm kev nkag siab txog cov khoom siv thiab cov txiaj ntsig zoo peb tuaj yeem siv lawv zoo nyob rau theem tom ntej.Polycarboxylate superplasticizerdej txo tus neeg saib xyuas yog cov dej ua haujlwm siab txo tus neeg saib xyuas thiab cov cement dispersant siv hauv kev siv cov cement pob zeb. Siv nyob rau hauv tej yaam num xws li kev loj, txuas hniav, dams, tunnels, thiab high-sawv vaj tse.
Post lub sij hawm: Jan-30-2024
