Xaiv cov khoom sib xyaw raws li kev siv ua vaj tse
Ua ntej, txij li muaj ntau qhov sib xyaw ua ke, cov sib xyaw sib txawv kuj ua lub luag haujlwm sib txawv, yog li hauv qhov kev xaiv siv los xaiv, ua ke nrog kev tsim kho vaj tsev xav tau thiab kev xaiv ua vaj tsev tuaj yeem ua tau raws li qhov xav tau ntawm kev tsim cov admixtures, muaj peev xwm ua tau lub luag haujlwm ntawm kev ua kom zoo tshaj plaws ntawm kev sib xyaw thiab tus nqi, muab cov ntaub ntawv muaj zog txhawb rau kev tsim kho tom qab. Qhov thib ob, peb yuav tsum tswj hwm qhov sib ntxiv ntawm cov pob zeb ua ke, piv txwv li, peb tuaj yeem xaiv cov dej txo tus neeg sawv cev txhawm rau ua kom qhov ua tau zoo ntawm cov pob zeb ua haujlwm, uas pab ua kom muaj txiaj ntsig ntau dua qhov chaw rau chav tsim kho. Ntxiv mus, tseem tuaj yeem siv lwm cov khoom sib xyaw txhim kho kev ua vaj tsev, xws li: poly carboxylic acid hom admixture, hom tshuaj ntxiv no uas muaj peev xwm txo qis zoo, tuaj yeem txhim kho cov pob zeb ua tau zoo, tuaj yeem txhim kho kev ua tau zoo ntawm kev ua vaj tsev, pab ntxiv rau peb lub teb chaws txoj haujlwm tsim vaj tsev tsim kho tsev, thiab txhim kho qhov zoo ntawm kev tsim kho tag nrho.
