Dab tsi cuam tshuam Cov Dej Reducer muaj nyob rau hauv pob zeb
Apr 07, 2022
Tus neeg tsim khoom ntawm tus neeg saib xyuas dej txo cov neeg tsim khoom tau hais tias tus nqi ntawm cov dej txo tus neeg sawv cev tsis siab, tab sis nws yog qhov ua tau zoo heev. Tom qab cov dej txo tus neeg sawv cev ntxiv rau hauv cov pob zeb, nws muaj cov nyhuv dispersing ntawm cov cement hais, uas tuaj yeem txhim kho cov coagulation kev ua tau zoo ntawm cov cement hais, txo cov dej siv dej, txhim kho fluidity ntawm cov pob zeb sib tov, txo cov nqi siv. ntawm chav tsev cement, thiab txuag cov cement. Yog li ntawd, nws tseem hu ua For concrete water reducer.
Cov dej reducer yog ib qho kev sib xyaw ua ke uas tswj xyuas qhov kev poob qis ntawm cov pob zeb hauv cov dej sib tov sib xyaw. Feem ntau ntawm cov dej txo cov neeg ua haujlwm yog anionic surfactants, xws li lignosulfonate, naphthalene sulfonate formaldehyde polymer. 20 feem pua los yog ntau tshaj ntawm cov dej txo tus nqi ntawm cov dej txo tus neeg sawv cev. Feem ntau yog naphthalene hom, melamine hom, thiab compound los ntawm cov dej txo tus neeg sawv cev, feem ntau yog raws li 67 feem pua ntawm naphthalene. Tshwj xeeb tshaj yog nyob rau hauv Suav teb, lawv feem ntau yog raws li cov ntaub ntawv tseem ceeb ntawm naphthalene-based superplasticizers.
Nws yog tus cwj pwm los ntawm kev txo qis dej siab (15 feem pua tsawg dua lossis sib npaug li 25 feem pua), tsis muaj cua nkag, tsis tshua muaj kev cuam tshuam rau lub sijhawm, kev hloov pauv zoo rau cov cement, thiab tuaj yeem siv ua ke nrog lwm cov khoom sib xyaw, thiab tus nqi kuj sib txawv. pheej yig. Naphthalene series dej reducers feem ntau yog siv rau hauv kev npaj cov dej fluidity thiab kev ua haujlwm siab. Thaum peb yuav cov dej txo qis, tsis txhob txhawj txog tus nqi ntawm cov dej reducer, tab sis tsis quav ntsej nws qhov zoo.