Chaw tsim khoom Calcium formateAojin Chemical qhia rau koj txog kev siv calcium formate hauv kev lag luam cement. Cov calcium formate uas Aojin Chemical muag muaj cov ntsiab lus siab txog 98% thiab ntim rau hauv 25kg/hnab.
Lub tuam txhab tsim khoom siv calcium formate Aojin Chemical qhia nws cov kev siv hauv kev lag luam cement tsim kho. Aojin Chemical muag calcium formate nrog cov ntsiab lus siab 98%, ntim rau hauv hnab 25kg.
Calcium formate (Ca(HCOO)₂), ib yam khoom siv organic uas muaj zog thaum ntxov, yog siv rau hauv kev tsim cov khoom siv ua vaj tse thiab cov khoom siv cement vim nws cov khoom siv tshuaj lom neeg tshwj xeeb. Nws cov haujlwm tseem ceeb thiab daim ntawv thov yog raws li nram no:
1. Lub zog thaum ntxov thiab kev teeb tsa kom nrawm dua
Calcium formate ua rau cov cement hydration sai dua, tshwj xeeb tshaj yog qhov hydration ntawm tricalcium silicate (C₃S) thiab tricalcium aluminate (C₃A). Qhov no ua rau cov khoom hydration (xws li ettringite thiab calcium hydroxide) tsim thiab teeb tsa sai dua, yog li ua kom lub zog ntawm cov khoom siv cement (lub zog tuaj yeem nce ntxiv 20% -50% hauv 1-7 hnub). Cov yam ntxwv no ua rau nws tsim nyog rau kev tsim kho qhov kub qis (xws li kev nchuav lub caij ntuj no) lossis cov haujlwm kho thaum muaj xwm txheej ceev, ua kom lub sijhawm kho kom luv dua thiab xyuas kom meej tias cov cement tawv ib txwm nyob rau hauv qhov kub qis, yog li tiv thaiv kev puas tsuaj los ntawm kev khov.
2. Txhim kho kev ua haujlwm ntawm cov pob zeb thiab kev ruaj khov
Hauv cov cement paste, calcium formate txo cov dej ntws thiab kev sib cais, txhim kho qhov sib xws thiab qhov ceev ntawm cov cement. Ntxiv mus, nws cov khoom hydration ua rau cov qhov hws ntawm cov cement paste, txo cov porosity, tsis ncaj qha txhim kho qhov tsis pub dej nkag, tiv taus te, thiab tiv taus xeb ntawm cov cement, yog li ua kom lub neej ua haujlwm ntawm cov khoom cement ntev dua.
3. Haum rau ntau yam khoom siv cement
Hauv kev tsim cov khoom ua ntej precast, xws li cov vaj huam sib luag precast thiab cov yeeb nkab, calcium formate ua rau cov pwm hloov pauv sai dua, luv lub sijhawm demolding, thiab txhim kho kev ua haujlwm ntau lawm.
Shotcrete: Siv rau hauv kev txau tshuaj hauv cov qhov av, cov chaw tsuas, thiab lwm yam haujlwm, nws sai sai teeb thiab tawv, txo qhov poob rov qab thiab txhim kho kev ua haujlwm zoo.
Cov ntaub ntawv mortar thiab masonry: Nws txhim kho qhov tuav dej thiab lub zog thaum ntxov ntawm mortar, ua kom muaj kev vam meej sai hauv cov txheej txheem masonry thiab plastering.
4. Cov txiaj ntsig ntawm ib puag ncig thiab kev sib raug zoo
Calcium formate Nqetsis muaj tshuaj lom thiab tsis ua rau khaus, thiab sib xws nrog cov cement, cov neeg sawv cev txo dej, cov tshauv ya, thiab lwm yam admixtures. Nws tsis ua rau muaj teeb meem xws li alkali-aggregate reaction hauv cov pob zeb ua vaj tse, ua tau raws li qhov xav tau ntawm kev tsim cov khoom siv tsev ntsuab. Lus Cim: Cov tshuaj calcium formate yuav tsum tau tswj hwm nruj me ntsis (feem ntau yog 1% -3% ntawm cov cement loj). Kev ntxiv ntau dhau yuav ua rau cov pob zeb ua vaj tse qeeb qeeb thiab ua rau cov kab nrib pleb shrinkage. Kev hloov kho yuav tsum tau ua raws li cov yam xws li qhov chaw ua haujlwm thiab hom cement.
Lub sijhawm tshaj tawm: Lub Yim Hli-19-2025
