Nrog rau txoj kev loj hlob ntawm kev ua haujlwm siab thiab tus nqi qis, nws tau maj mam txhawb los ntawm kev kub ceev, kev tsim hluav taws xob, chaw tsim hluav taws xob nuclear thiab lwm cov liaj teb mus rau thaj chaw pej xeem.Li cas cov dej tsim hluav taws xob ua dab tsi? nkag siab.
Tus neeg sawv cev txo dej yog ib hom admixture uas tuaj yeem txo cov dej haus kom tsim nyog nyob rau hauv ib chav hauv cov pob zeb, ua kom tau raws li qhov yuav tsum tau ua kom pom tseeb thiab txhim kho kev ua haujlwm ntawm cov pob zeb ua haujlwm.Thaum ua kev sib xyaw ua ke, ntxiv tus nqi tsim nyog ntawm cov dej-txo tus neeg tuaj yeem tuaj yeem ua cov cement. hais zom covyees thiab tso cov dej qhwv los ntawm cov nplais, raws li kom txo cov dej siv ntawm pob zeb ua.
1. Ua kom lub zog ua kom tsis muaj zog, txo qhov kev siv dej hauv lub tsev, txo cov dej-cement piv, txhim kho cov pob zeb ua kom muaj zog, txhim kho kev ua vaj tse, thiab txuag cov ntsiab lus xis mas;
2. Txhim kho kev ua haujlwm ntawm cov pob zeb tsis ruaj khov txhawm rau txhawm rau tiv thaiv kev cais pob zeb ntawm cov koom ua ke;
3. Txhim kho qhov tsis zoo, txo cov dej permeability, zam kev to ntawm cov qauv pob zeb, ua kom ruaj khov, nce tshuaj tiv thaiv corrosion;
4. Txo qhov shrinkage ua kom tsawg dua ntawm cov pob zeb ua kom ruaj khov txhawm rau txhawm rau tiv thaiv cov kab nrib pleb hauv cov khoom xyaw pob zeb;
5, txhawm rau txhim kho te, txhim kho rau lub caij ntuj no kev tsim kho.
