TSHUAB TXO DEJ SIAB (SMF)yog ib qho anion uas yaj tau hauv dej uas muaj zog heev. SMF muaj zog adsorption thiab decentralized effect rau cement. SMF yog ib qho ntawm cov dej-schizes hauv cov dej uas twb muaj lawm uas yog cov neeg sawv cev txo cov dej hauv cov pob zeb. Cov yam ntxwv tseem ceeb yog: dawb, txo cov dej ntau, hom induction tsis muaj cua, cov ntsiab lus chloride ion tsawg tsis xeb ntawm cov hlau tuav, thiab kev hloov pauv zoo rau ntau yam cement. Tom qab siv cov neeg sawv cev txo cov dej, qhov muaj zog thaum ntxov thiab permeability ntawm cov pob zeb tau nce ntxiv ntau, cov khoom siv tsim kho thiab kev khaws cia dej zoo dua, thiab kev saib xyuas cov pa tau hloov kho.
Hauv cov pob zeb uas poob qis, qhov xwm txheej zoo sib xws no tuaj yeem txo cov dej sib tov uas hu ua cov tshuaj txo dej ua haujlwm siab. Yog tias cov pob zeb poob qis, kev sib tov thiab kev siv dej tuaj yeem txo tau ntau dua 15%.
Kev loj hlob keeb kwm:Thawj tiam ntawm cov tshuaj ua kom dej zoo thiab cov tshuaj ua kom dej zoo tau tsim tawm thaum xyoo 1960. Vim yog kev ua haujlwm ntawm cov tshuaj ua kom dej zoo los ntawm lignesulfonate tsim tawm thaum xyoo 1930, nws kuj tseem hu ua super plasticizer. Tus neeg ua kom dej zoo thib ob yog amino sulfonate, txawm hais tias tom qab tiam thib peb ntawm superplasticizer - polycarboxylic acid series. Cov graft copolymer nrog ob qho tib si sulfonic acid thiab carboxylic acid yog qhov tseem ceeb tshaj plaws hauv tiam thib peb ntawm cov tshuaj ua kom dej zoo, thiab nws cov kev ua tau zoo kuj yog tus neeg ua kom dej zoo tshaj plaws.
Cov hom tseem ceeb:Cov tshuaj ua kom dej zoo thiab txo cov dej kom tsawg tuaj yeem ncav cuag ntau dua 20%. Nws feem ntau yog naphthalene series, melamine series thiab cov tshuaj ua kom dej tsawg, ntawm cov naphthalene series yog qhov tseem ceeb, suav txog 67%. Tshwj xeeb, feem ntau ntawm cov tshuaj ua kom dej zoo yog ua los ntawm naphthalene ua cov khoom siv tseem ceeb. Raws li cov ntsiab lus ntawm Na2SO4 hauv naphthalene series superplasticizer, nws tuaj yeem muab faib ua cov khoom muaj zog siab (Na2SO4 cov ntsiab lus <3%), cov khoom muaj zog nruab nrab (Na2SO4 cov ntsiab lus 3% -10%) thiab cov khoom muaj zog qis (Na2SO4 cov ntsiab lus > 10%). Feem ntau cov nroj tsuag tsim naphthalene superplasticizer muaj peev xwm tswj cov ntsiab lus ntawm Na2SO4 hauv qab 3%, thiab qee lub tuam txhab siab heev tuaj yeem tswj cov ntsiab lus ntawm NA2SO4 hauv qab 0.4%.
Naphthalene series ntawm cov neeg sawv cev txo dej yog qhov loj tshaj plaws hauv peb lub teb chaws tsim khoom, cov neeg sawv cev txo dej siv dav tshaj plaws (suav nrog ntau dua 70% ntawm cov neeg sawv cev txo dej), uas yog tus yam ntxwv los ntawm kev txo dej siab (15% ~ 25%), tsis muaj cua, tsis muaj kev cuam tshuam rau lub sijhawm teeb tsa, kev hloov pauv zoo nrog cov cement, tuaj yeem siv nrog lwm yam khoom sib xyaw, tus nqi kuj pheej yig. Naphthalene superplasticizer feem ntau siv los npaj cov pob zeb nrog kev txav mus los siab, lub zog siab thiab kev ua tau zoo. Kev poob qis ntawm cov pob zeb nrog naphthalene superplasticizer sai dua. Tsis tas li ntawd, kev hloov pauv ntawm naphthalene series dej txo dej thiab qee cov cement yuav tsum tau txhim kho.
Cov Khoom:Cov tshuaj ua kom cov dej tsawg dua muaj zog heev rau cov cement, tuaj yeem txhim kho cov dej ntws ntawm cov cement thiab cov pob zeb poob, tib lub sijhawm txo cov dej siv, txhim kho kev ua haujlwm ntawm cov pob zeb. Tab sis qee cov superplasticizer yuav ua rau cov pob zeb poob sai dua, kev sib tov ntau dhau yuav ua rau dej ntws. Cov tshuaj ua kom cov dej tsawg dua zoo li tsis hloov lub sijhawm teeb tsa pob zeb, thiab muaj qhov cuam tshuam me ntsis thaum siv ntau dhau (siv ntau dhau), tab sis tsis ncua lub zog loj hlob ntawm cov pob zeb tawv.
Nws tuaj yeem txo qhov siv dej ntau heev thiab txhim kho lub zog ntawm cov pob zeb sib xyaw rau ntau lub hnub nyoog sib txawv. Thaum lub zog tswj tau tas li, cov cement tuaj yeem txuag tau 10% lossis ntau dua.
Cov chloride ion uas muaj nyob hauv yog me me xwb, tsis muaj kev cuam tshuam rau xeb ntawm cov hlau. Nws tuaj yeem ua kom cov pob zeb tsis nkag tau, tsis khov thiab tsis yaj, thiab ua kom cov pob zeb ruaj khov.
DAIM NTAWV THOV:
1, Haum rau txhua yam kev lag luam thiab kev tsim kho pej xeem, kev txuag dej, kev thauj mus los, chaw nres nkoj, kev tsim kho hauv nroog precast thiab pov rau hauv qhov chaw reinforced concrete.
2, Haum rau lub zog siab, lub zog siab heev thiab lub zog nruab nrab, thiab qhov yuav tsum tau muaj lub zog thaum ntxov, tiv taus huab cua nruab nrab, cov dej khov loj.
3, Haum rau cov tswv cuab ntawm cov pob zeb ua ntej uas siv cov txheej txheem kho cua sov.
4, Haum rau ntau yam khoom sib xyaw ua ke ntawm cov khoom siv txo cov dej (Master Batch).
Ntim: 25kg / Hnab
Kev Cia Khoom: Khaws cia rau hauv qhov kaw zoo, tiv taus lub teeb, thiab tiv thaiv kom tsis txhob noo noo.
Lub sijhawm tshaj tawm: Lub Peb Hlis-06-2023