Naphthalene Superplasticizer khoom
Feb 22, 2023
Naphthalene Superplasticizer khoom
Lus qhuab ntuas
Cov khoom no yog cov tsis-cua-entraining naphthalene-raws li high-efficiency dej reducer nrog -naphthalenesulfonic acid formaldehyde condensation polymer ua lub ntsiab tivthaiv. Nrog cov dej siab txo tus nqi thiab pom tseeb ntxiv dag zog, nws tuaj yeem txhim kho fluidity ntawm pob zeb thiab txhim kho kev ua haujlwm. Cov khoom no tsis muaj sulfate thiab chlorine ntsev, tsis muaj kev cuam tshuam corrosion ntawm steel tuav, tsis muaj tshuaj lom thiab tsis muaj kuab paug, thiab txuag tau li ntawm 5-15 feem pua ntawm cov cement. Nws yog dav siv nyob rau hauv txoj kev, railways, txuas hniav, tunnels, dams, ports, high-sawv vaj tse thiab hluav taws xob engineering. Nws yog siv los npaj cov pob zeb ua haujlwm siab nrog lub siab fluidity, siab zog thiab siab impermeability.
Cov yam ntxwv tseem ceeb
1. Kev txo qis dej siab, raws li lub teb chaws GB8076-2008 tus qauv "Concrete Admixtures", tus nqi txo cov dej ntau tshaj 18 feem pua.
2. Superplasticization tuaj yeem ua kom cov dej ntws zoo ntawm cov pob zeb, txo cov ntshav thiab kev sib cais, txhim kho kev ua haujlwm ntawm cov pob zeb, thiab pab txhawb kev tsim kho thiab compaction.
3. Kev txhim kho tseem ceeb, 3d, 7d, thiab 28d compressive zog ntawm cov pob zeb sib xyaw nrog cov dej ua kom muaj txiaj ntsig zoo txo tus neeg sawv cev yog nce li ntawm 60-80 feem pua, 50-60 feem pua, thiab 40-50 feem pua piv nrog rau lub benchmark pob zeb.
4. Cov ntsiab lus ntawm sodium sulfate yog tsawg, thiab cov kua ua kua tsis muaj crystallization nyob rau lub caij ntuj no siv. Tom qab kev sib piv nrog cov khoom siv retarding, qhov poob ntawm cov pob zeb tawg thaum lub sij hawm me me.
5. Kev ua haujlwm zoo, tuaj yeem txhim kho lub capillary pore faib qauv ntawm cov pob zeb, thiab txhim kho cov kev ua tau zoo ntawm cov pob zeb xws li carbonation tsis kam thiab khov-thaw kuj.
