1 Cement
Cement yog ib qho tseem ceeb raw khoom rau kev lag luam pob zeb ua lag luam. Tus nqi ntawm cov cement yog qhov siab tshaj plaws ntawm cov xuab zeb thiab pob zeb. Yuav ua li cas xaiv cov cement haum rau cov kev cai ntawm kev lag luam pob zeb ua lag luam cuam tshuam rau qhov zoo ntawm pob zeb rau qee yam, thiab tom qab ntawd cuam tshuam rau tus nqi ntawm pob zeb. Ua ntej ntawm tag nrho cov, yuav tsum xaiv qhov zoo ntawm cov cement ruaj khov, kev lag luam pob zeb kws tshaj lij txaus siab xaiv cov cement zoo, txawm tias lub zog qis dua me ntsis. Lub 28d cement xuab zeb lub zog hloov pauv tsawg dua, thiab qhov zoo ntawm cov pob zeb sib txawv tsawg dua thaum qhov zoo ntawm lwm cov khoom siv raw zoo ib yam. Hauv kev tsim cov pob zeb sib xyaw tuaj yeem ua tau raws li qhov yuav tsum tau ua nyob rau hauv cov xwm txheej ntawm kev siv cov cement qis, txo tus nqi. Ntawm qhov tsis sib xws, yog tias qhov zoo ntawm cov cement fluctuation yog loj heev, nyob rau hauv tus txheej txheem ntawm mix ratio tsim, nyob rau hauv thiaj li yuav xyuas kom meej qhov zoo ntawm cov pob zeb yog feem ntau siv "tsawg yog tsis siab", nce tus nqi ntawm cov cement, tus nqi siab. Qhov thib ob, nws yog ib qho tsim nyog yuav tsum tau saib cov coefficient ntawm cov cement zog. Tus nqi kuj tsawg heev thaum cov cement uas muaj cov coefficient siab tshaj yog siv los ua pob zeb. Thaum kawg, txhawm rau pom kev hloov pauv ntawm cov cement thiab dej txo tus neeg sawv cev, xaiv cov cement nrog kev hloov pauv zoo ntawm cov dej txo tus neeg sawv cev, tuaj yeem siv los txo tus nqi sib xyaw kom tau txais kev ua haujlwm zoo.
Mineral sib tov
Mineral admixtures feem ntau siv hauv kev lag luam pob zeb. Cov ntxhia admixtures nrog zoo adaptability thiab tsis tshua muaj dej thov yuav tsum tau xaiv nyob rau hauv kev xaiv ntawm ntxhia admixtures. Me me fineness ntawm ntxhia admixture, tsis tas yuav muaj kev ua haujlwm siab, tab sis kev ua haujlwm ntawm cov nplua nuj loj yog qhov tsawg.
