Polycarboxylic acid dej tso kua dej yog ib hom qhob admixture, peb yuav tsum them sai sai rau kev siv txoj hauv kev ntxiv, txwv tsis pub nws yuav ua rau cov nyhuv tsis xav tau:
(1) ua ntej qhov sib ntxiv, kev siv dej lossis cov xuab zeb tus nqi tau kho cov kev sim raws li tus qauv tsim ntawm cov pob zeb ua kom ua tiav cov kab nqes, lub zog thiab cov hws tawm ntawm cov dej uas xav tau;
(2) tom qab txiav txim siab ntxiv qhov kev txiav txim siab, txiav txim siab tsim cov txheej txheem tsim nyog, thiab tau txais qee cov ntaub ntawv sim.Yog li ua rau cov pob zeb ntws ua kom tau raws li cov kev tsim kho, pob zeb ua kom lub zog yuav tsum muaj qee qhov txiaj ntsig, txawm tias pub mis, ntsuas qhov tseeb, yooj yim los kho thiab ntxiv kev faib ua feem;
(3) thaum lub sij hawm nplawm txheej txheem, polycarboxylic acid superplasticizer ntxiv tom qab 0.5-1.0 feeb;
(4) thaum lub sij hawm nplawm, qhov khiav tawm ntawm lub twj tso kua mis peristaltic yuav tsum tau kho kom ncav sijhawm raws li cov khoom siv sib txawv thiab qhov yuav tsum ua kom muaj qhov zoo tshaj plaws ntawm cov khoom.
Tom qab tov cov polycarboxylic acid superplasticizer nrog qhob, tshuaj tsuag tam sim. Yog tias cov sib xyaw kom haum rau ib lub sijhawm ntev dhau, nws yuav tsis tsuas yog cuam tshuam qhov hloov sai sai, tab sis kuj cuam tshuam lub zog ntawm kev ua vaj tse.
