Los ntawm qhov kev pom ntawm txoj haujlwm ntawm pob zeb ua pob zeb ua kom zoo nkauj, peb tuaj yeem nres cov kev faib tawm thiab tsuas yog kov rau plaub yam. Los ntawm daim ntawv thov ntawm cov kev tsim nyog admixtures, peb tuaj yeem ua tiav kev tswj hwm ntawm cov pob zeb ceev. Los ntawm cov kev pom ntawm daim ntawv thov ntawm ntau hom qhob admixtures, cov teebmeem tseem txawv. Tom ntej no, cov qhob admixtures cov chaw tsim khoom sib koom ua ke ntawm cov pob zeb ua kom zoo nkauj admixtures.

Ntawm lawv, txoj haujlwm tseem ceeb ntawm kev siv dej nag los yog txo qis kev saib xyuas, ua kom zoo dua qub thiab elastic khoom, thiab txhim kho nws cov ntawv thov siv.

Cov neeg muaj huab cua-Entraining yog nres ntxiv cov solubility ntawm cov pob zeb ua kom zoo thiab ua kom tiav kev ua kom zoo ntawm cov qauv sab hauv.

Tsis tas li ntawd, ntau cov kev siv pob zeb muaj cov kev xav tau rau cov impermility. Cov neeg yuav tsum tau ua raws li kev tsim kho cov kev tsim kho los ntawm kev thov kev ua haujlwm ntawm cov pob zeb ua kom huv si. Thiab cov neeg ua haujlwm cuam tshuam tuaj yeem tswj hwm tus nqi carbon monoxide. Daim ntawv thov ntawm nag lossis daus .Yog tus lej hauv cov pob zeb ua kom qis dua, cov teeb meem hlau sib raug yuav tseem yuav tiv thaiv ntau yam.

Vim muaj ntau hom sib txawv, kev xaiv ntawm pob zeb ua pob ua ke kuj tseem yuav pom pom qhov sib txawv. Txhawm rau qhia cov nyhuv ua haujlwm, cov neeg ua haujlwm tsim nyog yuav tsum nres qhov tsim nyog tswj hwm ntawm cov yam ntxwv sib txawv, thiab ua kom muaj kev txhim kho cov yam ntxwv zoo ntawm kev ua tau zoo ntawm kev ua vaj tse nws tus kheej. Ntawm, dej-txo tus neeg sawv cev yog ib tug pob zeb admixture uas tuaj yeem txo cov kev sib xyaw ua ke hauv dej nyob rau hauv cov xwm txheej uas swb ntawm cov qhob tsis hloov. Tom qab ntxiv pob zeb sib tov, nws tuaj yeem faib cov movent casects, txhim kho kev noj dej, txo qis ntawm cov qhob noom pob zeb sib xyaw; Lossis txo qis cov khoom siv xis mas tau txais kom txuag tau xis.