1, tuaj yeem txo qhov kev noj haus dej ntawm cov pob zeb ua pob zeb, lossis txawm tias tsis nce qhov dej noj tuaj yeem nce qhov kev txav ntawm cov pob zeb.
2. Lub sijhawm teeb tsa ntawm pob zeb tuaj yeem hloov kho.
3. Nws tuaj yeem ua kom tsis txhob los ntshav thiab sib cais, txhim kho kev ua haujlwm thiab dej ntxuav ua hauj.
4. Nws tuaj yeem txo qhov poob qis thiab ua kom lub taub ntawm cov twj tso kua mis.
5, tuaj yeem txo qhov kev cog lus, ntxiv rau tus neeg sawv cev nthuav tawm tuaj yeem tuaj yeem them cov kev cog lus.
6. Nws tuaj yeem ncua lub sijhawm pib dej kub ntawm cov pob zeb, txo qhov kub nce siab ntawm cov pob zeb loj thiab txo qhov tshwm sim ntawm cov pob zeb tawg.
7. Txhim kho lub zog thaum ntxov ntawm kev ua vaj tse los tiv thaiv kom khov ntawm qhov kub tsawg.
8, txhim kho lub zog ntawm kev ua vaj tse, ua kom muaj tus tiv thaiv te, impermeability, hnav tsis kam, ua hauj corrosion.
9. Nws tuaj yeem ua rau pob zeb nrog lwm cov khoom tshwj xeeb.
10, txo cov pob zeb viscosity coefficient.
Pob zeb ua vaj tse admixture muaj cov haujlwm zoo, nws daim ntawv thov muaj peev xwm ua tau zoo ntxiv cov nqi ntawm pob zeb ua kom zoo dua qub, txhim kho vaj tse zoo, txhim kho kev lag luam zoo.
