Npaj kho: cov cement yog dab tsi

Npaj kho: cov cement yog dab tsi
Npaj kho: cov cement yog dab tsi

Video: Npaj kho: cov cement yog dab tsi

Video: Npaj kho: cov cement yog dab tsi
Video: khwv nyiaj tsis nce tes yog vim li cas 2024, Tej zaum
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Yog tias koj mob siab rau kho koj lub tsev lossis tsev thiab npaj yuav plaster phab ntsa, theem hauv pem teb, ces koj yuav tsum paub yuav ua li cas ua cov cement mortar. Tau kawg, yog tias koj tab tom xav txog kev ntiav cov neeg tsim khoom, ces delving rau hauv cov txheej txheem intricacies tsis yog txhua yam tsim nyog. Tab sis yog tias koj txiav txim siab ua txhua yam qias neeg ntawm koj tus kheej, tab sis koj tsis yog tus kws tshaj lij, ces nws yog qhov zoo dua los kawm qhov kev xav ua ntej.

Cov cement yog dab tsi?
Cov cement yog dab tsi?

Rau txhua txoj haujlwm koj yuav xav tau cov cement tshiab - qhov no yog ib qho tshwj xeeb khi uas ua pob zeb zoo li thaum tawv. Thov nco ntsoov tias yog tias nws nyob rau ntau tshaj rau lub hlis, nws tuaj yeem nqus dej noo, thiab nws tsuas yog siv tsis tau. Yuav kom ua ib lub mortar rau plaster, koj yuav tsum paub seb cov cement yog ua los ntawm. Txhawm rau npaj nws, koj yuav tsum xub sib tov cov khoom siv nrog xuab zeb. Cov proportions tsuas yog nyob ntawm hom koj yuav. Yog li, rau M-200 cement, rau txhua qhov ntawm nws cov kilograms, xav tau 3.5 kg ntawm xuab zeb, thiab rau M-400, 5 kg yuav tsum tau. Los ntawm txoj kev, tsis yog tsuas yog tus nqi ntawm cov txiaj ntsig sib tov, tab sis kuj nws lub zog yuav nyob ntawm lub hom. Piv txwv li, rau kev tsim kho ntawm ntau yam tub rog chaw, suav nrogmissile silos lossis bunkers, siv M-600.

Yuav ua li cas ua ib lub cement mortar
Yuav ua li cas ua ib lub cement mortar

Nws yog ib qho tseem ceeb tsis tsuas yog kom paub qhov tsim nyog proportions, tab sis kuj yog cov cuab yeej ntawm yuav ua li cas ua ib tug cement mortar. Tom qab npaj cov khoom xyaw qhuav, ncuav lawv rau hauv lub khob kneading hauv ib txheej me me. Tsuas yog tom qab ntawd ntxiv dej thiab sib tov txhua yam kom huv si kom txog thaum sib tov homogeneous. Qhov zoo ntawm cov tshuaj yog kuaj raws li hauv qab no: nws yuav tsum tau lo rau hauv daim rau lub duav, uas cuam tshuam nrog nws. Yog hais tias nws kiag li ntws los ntawm nws los yog, conversely, lub hnab ntawv, ces cov batch no ua tsis tiav. Nyob rau hauv thawj rooj plaub, nws hloov tawm mus ua kua heev (skinny, raws li cov builders kuj hu nws), thiab nyob rau hauv lub thib ob - tuab (rog).

Paub seb cov cement yog dab tsi, koj tuaj yeem npaj tag nrho cov khoom tsim nyog ua ntej kom muaj nuj nqis. Los ntawm txoj kev, nws yog ntshaw kom paub cov proportions txawm nyob rau hauv rooj plaub uas builders yuav ua tag nrho cov hauj lwm rau koj. Qhov no yuav pab kom tsis txhob muaj cov nqi tsim nyog, vim tias koj tuaj yeem tswj tau cov khoom siv koj tus kheej.

Yog tias koj xav kawm tsis tsuas yog hais txog kev siv tshuab ua cov sib tov rau plastering, tab sis kuj hais txog dab tsi cement yog ua los ntawm, ces koj yuav txaus siab rau hauv qab no. Kev tsim cov khoom siv no yog qhov ua rau muaj kev puas tsuaj rau ib puag ncig, siv zog ua haujlwm thiab raug nqi ntau. Nws pib nrog cov theem kim tshaj plaws - kev rho tawm cov khoom siv raw, uas suav nrog cov pob zeb carbonate: limestone, chalk thiab lwm yam. Cov khoom nyoos uas muab rho tawm hauv lub plhu hauv lub ntiaj teb yog crushed thiab hauv av.

Yuav ua li cas ua ib lub cement mortar
Yuav ua li cas ua ib lub cement mortar

Nyob rau theem tom ntej, cov pob zeb carbonate tau sib xyaw nrog lwm cov khoom siv thiab raug rho tawm haujlwm. ATYog li ntawd, clinker yog tsim. Yog tias peb txuas ntxiv nkag siab txog dab tsi cement yog ua los ntawm, nws yuav paub meej tias nyob rau theem no nws lub hauv paus tau tsim. Nws qhov ntau lawm yuav nyob ntawm seb cov khoom siv raw siv thiab qhov zoo ntawm cov khoom siv. Kev lag luam tau tsim 3 txoj hauv kev rau kev tsim cov cement: ntub, qhuav thiab ua ke. Thawj qhov kev xaiv yog siv nyob rau hauv rooj plaub uas chalk, av nplaum thiab ntau yam hlau uas muaj cov khoom siv ntxiv ua cov khoom siv raw. Sib tov sib xyaw nrog cov qauv no yuav siv qhov chaw nyob rau hauv ib qho nruab nrab aqueous, thiab cov zis yog ncua kev kawm ntawv nrog cov ntsiab lus noo ntawm li 30-50%. Nws raug rho tawm haujlwm nyob rau hauv qhov cub tshwj xeeb, tom qab uas nws yog av rau hauv hmoov. Tab sis nrog txoj kev qhuav, cov khoom xyaw qhuav ua ntej sib tsoo.

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