Lub suab ntawm cov cement hais txog qhov ruaj khov ntawm qhov ntim hloov pauv hauv cov txheej txheem ntawm kev teeb tsa thiab tawv. … Yog li, qhov ntim yuav nthuav 1.5 npaug, uas ua rau tawg ntawm cov cement paste matrix.
Koj yuav piav qhia lub suab ntawm cov cement thiab piav qhia meej li cas?
Soundness ntawm cement tuaj yeem txhais tau tias nws lub peev xwm khaws nws cov ntim tom qab nws tau tawv. Qhov no txhais tau hais tias lub suab zoo cement yuav raug hloov pauv qhov tsawg kawg nkaus tom qab nws hloov mus rau hauv lub xeev hardened. Hauv kev sim soundness ntawm cement, peb txiav txim siab npaum li cas ntawm cov txiv qaub ntau dhau.
Vim li cas qhov ntsuas suab tau ua tiav rau cement?
1 Lub hom phiaj ntawm kev ntsuas suab nrov yog dab tsi? Kev ntsuam xyuas lub suab ntawm cov cement, kom ntseeg tau tias-tias cov cement tsis qhia qhov kev nthuav dav ntxiv ntawm qhov tseem ceeb. Qhov tsis hnov tsw yog tshwm sim los ntawm cov txiv qaub ntau tshaj qhov uas tuaj yeem ua ke nrog acidic oxide ntawm lub kiln.
Lub ntsiab lus ntawm lub suab ntawm cement muaj peev xwm yog dab tsi?
d) Muaj peev xwm khaws ntim tom qab teeb tsa. Kev piav qhia: Thaum cov cement paste hardens thiab teeb tsa, nws yuav tsum tsis txhob hloov pauv qhov ntim. Soundness ua kom qhov no thiab tau sim siv Autoclave expansion test.
Lub suab ntawm cement Mcq yog dab tsi?
Kev piav qhia: Lub suab ntawm cov cement yog cov cuab yeej los ntawm kev tsim txiaj uas cov cement tsis ua rau muaj txiaj ntsigexpansion.
