Cov txheej txheem:
Video: Cov khoom ntawm cov cement yog dab tsi?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Cov khoom siv dav siv los tsim khoom cement muaj xws li limestone, plhaub, thiab chalk los yog marl ua ke nrog shale, av nplaum, slate, blast furnace slag, silica xuab zeb, thiab hlau ore.
Cia li xav txog qhov no, yuav ua li cas cement yog tsim?
Cement yog tsim los ntawm cua sov ib tug meej sib tov ntawm finely av limestone, av nplaum thiab xuab zeb nyob rau hauv ib tug rotating kiln kom kub txog 1450ºC. Qhov no tshwm sim nyob rau hauv zus tau tej cov cement clinker, ib qho khoom nruab nrab hauv kev tsim khoom cement.
Kuj Paub, cov ntaub ntawv raw ntawm cov cement yog dab tsi? Cov khoom siv raw xav tau los tsim cov cement (calcium carbonate, silica , alumina thiab hlau ore) feem ntau muab rho tawm los ntawm limestone pob zeb, chalk, clayey schist los yog av nplaum . Cov peev txheej tsim nyog tuaj yeem pom nyob hauv ntau lub tebchaws. Cov khoom siv raw yog muab rho tawm los ntawm cov chaw txua txiag zeb los ntawm kev blasting.
Tom qab, lo lus nug yog, dab tsi yog 5 hom cement?
14 Ntau hom cement: -
- Ordinary Portland Cement (OPC): Qhov no yog hom cement ntau tshaj plaws uas yog siv dav.
- Rapid Hardening cement:
- Tsawg cua sov portland cement: -
- Sulphate Resisting Portland Cement: -
- High alumina Cement:-
- Qhov cub tawg slag cement: -
- Xim Cement: -
- Pozzolana cement:-
Cov cement tuaj yeem siv los ntawm nws tus kheej?
Cement yog hmoov zoo khi uas yeej tsis yog siv ib leeg tab sis yog ib feem ntawm ob qho tib si ua vaj tse thiab cug, nrog rau stucco, pobzeb grout, thiab txheej txheej nplaum.
Pom zoo:
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Cov nqe lus ntawm tus nqi ntawm cov khoom tsim khoom yog dab tsi?
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Dab tsi yog cov khoom noj khoom haus thiab cov khoom noj web piav qhia nrog piv txwv?
Lub saw zaub mov tsuas yog ua raws li ib txoj hauv kev thaum tsiaj nrhiav zaub mov. Piv txwv li: Ib tug hawk noj ib tug nab, uas tau noj ib tug qav, uas tau noj ib tug nas tsuag, uas tau noj nyom. Lub vev xaib zaub mov qhia ntau txoj hauv kev sib txawv ntawm cov nroj tsuag thiab tsiaj sib txuas. Piv txwv li: Ib tug hawk kuj yuav noj nas, squirrel, qav lossis lwm yam tsiaj
Dab tsi yog qhov txawv ntawm cov khoom noj khoom haus thiab cov khoom noj web?
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