Polycarboxylate Superplasticizer (Polyether Based) High Range Water Reduction Concrete Admixture
May 14, 2022
Polycarboxylate Superplasticizer (Polyether Based) High Range Water Reduction Concrete Admixture
1. Tsawg npaum li cas thiab cov dej txo qis. Thaum qhov ntau npaum li cas yog li 1.0 feem pua, cov dej txo qis tshaj 35 feem pua.
2. Thaum ntxov lub zog thiab lub zog siab, lub zog thaum ntxov tau nce ntau dua 50 feem pua, thiab 28 hnub lub zog tau nce ntau dua 30 feem pua.
Nws tsis haum rau cov ntsiab lus siab ya tshauv pob zeb. Lub zog ntawm cov dej no txo tus neeg sawv cev nce nyob rau hauv qhov ntau npaum li cas
Nws yog qhov pom tseeb nrog qhov nce ntawm cov ntsiab lus, tab sis lub zog yuav tsis raug txhim kho ntxiv tom qab tshaj cov ntsiab lus zoo.
3. Tsawg poob qis, zoo slump tuav tus nqi hauv 1H, tsis hloov pauv thiab nthuav dav ntawm qhov kub tsis zoo
Kev poob qis kuj nce ntxiv, qhov kub siab tshaj 20 degrees, thiab qhov poob qis me ntsis hauv 1H, tab sis nws kuj tseem nyob ntawm 95 feem pua.
Saum toj no, thaum qhov kub siab tshaj 30 degree, cov nqi khaws cia hauv 1H tseem yog 93 feem pua.
4. Kev ua haujlwm zoo ntawm cov pob zeb: cov pob zeb npaj nrog polycarboxylic acid superplasticizer yog txawm tias nyob rau hauv kev poob siab.
Nyob rau hauv cov xwm txheej ntawm kev poob qis, yuav tsis muaj kev sib cais thiab los ntshav, thiab cov xim ntawm cov pob zeb zoo ib yam.
Rau kev npaj siab fluidity pob zeb, nws tus kheej leveling qhob, nws tus kheej compacting qhob thiab ncaj ncees faced tiav
Pob zeb muaj txiaj ntsig zoo heev. Thaum siv los npaj cov pob zeb qib siab, cov pob zeb muaj kev ua haujlwm zoo thiab sib koom ua ke
Kev ua haujlwm zoo thiab kev sib xyaw ua ke yooj yim ntawm pob zeb.
5. Cov pob zeb sib xyaw nrog cov khoom siv no muaj qhov ua haujlwm zoo, hauv kev txhaws, ruaj khov thiab twj tso kua mis
Kev tiv thaiv, lub zog compactness, sulfate corrosion kuj, alkali aggregate reactivity, Frost tsis kam thiab
Shrinkage thiab creep zog yog zoo dua li cov dej txo tus neeg sawv cev.
6. Nws muaj kev sib raug zoo nrog ntau hom cement thiab admixtures, thiab daws qhov teeb meem ntawm kev siv lwm cov dej txo cov neeg ua haujlwm thiab
Compatibility ntawm cov ntaub ntawv cementitious.
7. Cov khoom zoo ruaj khov: tsis muaj nag lossis daus ntawm qhov kub thiab txias.
8. Cov khoom tiv thaiv ib puag ncig ntsuab, suav nrog cov ntsiab lus alkali, cov ntsiab lus chloride ion, sodium sulfate cov ntsiab lus thiab cov ntsiab lus formaldehyde
Qhov kom muaj nuj nqis tsawg heev, thiab tsis muaj kuab paug rau lub ntuj puag ncig hauv cov txheej txheem tsim khoom, uas yog raws li ISO14000
Cov qauv hauv tebchaws rau kev tswj hwm kev tiv thaiv ib puag ncig yog qhov tsim nyog rau kev txhim kho kom ruaj khov.
9. Qhov project nqi qis dua li ntawm lwm yam khoom.
Homogeneity index
Tsis yog cov khoom xeem
qhov ntsuas
ib
Cov ntsiab lus ntawm cov kua (liquid)
Tswj tus nqi txheeb ze ntawm tus nqi tswj ntawm cov chaw tsim khoom hauv 3 feem pua
ob
Tus nqi PH
Nws yuav tsum nyob rau hauv ± 1.0 ntawm tus nqi tswj ntawm cov chaw tsim khoom
peb
ceev
Tswj tsis pub dhau ± 0.01g/ml
plaub
Fluidity ntawm cement paste
Nws yuav tsum tsis pub tsawg dua 95 feem pua ntawm cov nqi tswj ntawm cov chaw tsim khoom
tsib
Dej txo tus nqi ntawm mortar
Nws yuav tsum tsis pub tsawg dua 95 feem pua ntawm cov nqi tswj ntawm cov chaw tsim khoom
rau
Cov ntsiab lus chloride ion
Tswj nyob rau hauv 5 feem pua ntawm cov txheeb ze kom muaj nuj nqis ntawm tus nqi tswj ntawm cov chaw tsim khoom
xya
Tag nrho cov ntsiab lus alkali
Tswj nyob rau hauv 5 feem pua ntawm cov txheeb ze kom muaj nuj nqis ntawm tus nqi tswj ntawm cov chaw tsim khoom
yim
Cov ntsiab lus ntawm sodium sulfate
Tswj nyob rau hauv 5 feem pua ntawm cov txheeb ze kom muaj nuj nqis ntawm tus nqi tswj ntawm cov chaw tsim khoom