Txiv qaub yog dav siv nyob rau hauv kev tsim kho, suav nrog rau kev tsim khoom tsev. Cov ntaub ntawv raw rau kev tsim cov kua qaub yog cov pob zeb sedimentary: dolomite, chalk, limestone. Tom qab calcining cov pob zeb no dhau ib qho hluav taws kub, cov calcium carbonate uas muaj nyob hauv lawv hloov mus rau hauv calcium oxide. Thaum muab tso nrog dej, muaj kev tawm tsam hnyav.
Tsim nyog
- - dej,
- - xuab zeb,
- - txiv qaub,
- - rho daus,
- - lub thawv ntoo nrog cov ntxaij zoo nkauj (xov tooj ntawm 2x2 lossis 3x3 hli) nrog kev qhib nrog kaw.
Cov Lus Qhia
Kauj ruam 1
Raws li tus nqi slaking, txiv qaub tau muab faib ua peb pawg:
1. cauj-tua-tua hluav taws tawm ntawm 10 feeb;
2. nruab nrab ziab - ziab nrawm los ntawm 10 mus rau 30 feeb;
3. qeeb damping - damping nrawm tshaj 30 feeb.
Kauj ruam 2
Cov qog ua kom tawv nqaij nrog cov dej me me (60-100% los ntawm qhov hnyav) ua rau cov hmoov qhuav zoo - fluff. Cov kua qaub qaub, plam nrog cov dej ntau dhau, lossis fluff nrog qhov sib ntxiv ntawm cov dej (1-1.5 ntu ib ntu 1 ntawm cov txiv qaub) ua cov kua qaub txiv qaub - qhov no yog qhov ntau ntawm creamy sib xws. Lub txiv qaub tuaj yeem muab tau los ntawm diluting txiv qaub ua khob noom cookie nrog dej ntawm tus nqi ntawm 1 feem fluff 3 qhov dej.
Kauj ruam 3
Cov qog qaub tuaj yeem siv hluav taws xob qhuav. Txhawm rau ua qhov no, koj yuav tsum nteg cov kua qaub rau hauv txheej 20-25 cm siab thiab nphoo nrog dej. Yuav tsum tsis muaj dej me me, txwv tsis pub lub txiv qaub yuav hlawv tawm, tab sis nws yuav tsum tsis txhob muab ntau dhau, txwv tsis pub tua hluav taws yuav cuam tshuam. Thaum cov kua qaub feem ntau raug tua, nws yuav tsum tau ua tib zoo sau rau hauv pob taws thiab them nrog ib txheej ntawm cov xuab zeb ntub 5-10 cm tuab, hauv qab uas cov kua qaub thaum kawg tua.
Kauj ruam 4
Tom qab 2-3 hnub, xuab zeb nrog txiv qaub yog sieved los ntawm ib tug nplua sieve. Yog tias xav tau cov kua qaub ntau, tom qab ntawd cov kua qaub yuav tsum muab tais rau hauv txheej 20-25 cm siab, ntuag nrog dej thiab txuas ntxiv quav thiab dej kom txog thaum cov pob taws ncav txog 1 m. Txhua yam yog them nrog cov xuab zeb ntub. Tom qab ib lub limtiam, cov kua qaub yuav yaj thiab yuav npaj siv. Txiv qaub slaked nyob rau hauv txoj kev no tsuas yog siv tau tshuaj khib thaum masonry.
Kauj ruam 5
Qhov tsim muaj qhov xav tau yog xav tau rau slaking txiv qaub nrog tus qauv ntub. Muaj qhov khawb lub qhov, tso lub pob zeb sib tshooj nyob ze nws - qhov no yog lub thawv ntoo nrog qhov ntev ntawm kwv yees li 1.5 los ntawm 2 m, hauv qhov qis ntawm qhov muaj qhov zoo kaw nrog lub mesh zoo nrog lub kaw.
Kauj Ruam 6
Cov kab kua qaub tau muab tso rau hauv lub thawv ntawm qhov siab of ntawm ib sab. Nws yuav tsum tau nchuav nrog dej, thaum nws pib poob rau hauv qhov me me, ntxiv dej thiab do. Tom qab cov kua qaub tau slaked, do nws kom txog thaum tuab cov mis ntawm cov txiv qaub, tshem tawm cov damper thiab muab cov mis tso rau hauv lub suab los rau hauv lub qhov. Yog tias dej me me ntxiv thaum tab tom tsoo, ces lub txiv qaub tuaj yeem hlawv, yog tias muaj dej ntau dhau, nws yuav "poob dej". Hauv ob kis thawj zaug thiab zaum ob, cov kua qaub tsis tuaj yeem siv ntxiv.
Kauj Ruam 7
Txhawm rau kom tsis txhob qhuav thiab coking, npog lub txiv qaub porridge hauv lub qhov nrog ib txheej ntawm cov xuab zeb huv txog 10 cm tuab.
Kauj ruam 8
Yuav kom tau txais 1 m³ ntawm txiv qaub slurry, koj xav tau 3 m³ (30 hectolitres) dej thiab 400-440 kg ntawm cov kua qaub qaub. Rau masonry, slaked txiv qaub yog thov tshiab (ntau hnub), thiab cov kua qaub yog ntxiv rau lub plaster cug tsis ntxov tshaj 4 lub lis piam, qhov no yog qhov tsim nyog kom lub seem uas tsis muaj qhov tsis tshua tau pib ua kom zoo li qub hauv plaster.
Kauj Ruam 9
Thaum pw, nws yog qhov yuav tsum tau ntxiv 1 m³ ntawm cov xuab zeb rau 167 litres ntawm txiv qaub slurry. Thaum plastering, 200 liv ntawm porridge yog ntxiv rau lub txiv qaub cug rau 1 m³ ntawm cov xuab zeb. Txhawm rau tsim 1 hectoliter mis nyuj ntawm cov kua qaub uas yuav tsum muaj rau kev ntxuav dawb, koj xav tau 90-92 liv dej thiab 9-10 kg ntawm txiv qaub.
