(1) txo cov dej tshauv piv rau kom deb li deb tau kom txo tau cov dej noo dawb hauv cov pob zeb sib xyaw, siv cov dej tshauv me me, cov dej me me siv cov pob zeb qhuav qhuav, lossis hauv cov pob zeb sib xyaw nrog cov dej txo tus neeg sawv cev.
(2) txhim kho cov ntxhib thiab nplua aggregate particle faib, xuab zeb particle faib hais txog qhov xwm txheej ntawm cov xuab zeb uas muaj qhov sib txawv ntawm qhov sib txawv, cov xuab zeb zoo, me me voidage, tsis tsuas yog txuag cov cement, tab sis kuj tuaj yeem txhim kho kev ua haujlwm. ntawm pob zeb sib tov, txhim kho lub compactness, lub zog thiab durability ntawm pob zeb.
(3) ntxiv cov additives los txhim kho kev khov thiab permeability. Kev sib xyaw ua ke ntawm cov khoom sib xyaw ua ke hauv cov txheej txheem ntawm kev sib xyaw ua ke los txhim kho kev ua haujlwm ntawm cov khoom siv pob zeb, cov khoom sib xyaw tsis ntau tshaj tsib feem pua ntawm cov cement zoo, tus nqi ntawm cov khoom siv me me, tab sis tuaj yeem txhim kho kev ua tau zoo ntawm pob zeb, txhim kho cov txiaj ntsig kev lag luam thiab kev lag luam, yooj yim siv, yog li los ntawm kev saib xyuas hauv tsev thiab txawv teb chaws, Thiab tau ua pob zeb ntxiv rau cov cement, xuab zeb, pob zeb, dej dhau ntawm pawg thib tsib ntawm cov ntsiab lus.
