Txhawm rau pib ua haujlwm tsim kho, koj yuav tsum tau npaj ntau yam. Nws yog ib qho uas yuav tsum muaj lub siab xav ua lub tsev, thiab lwm yam los suav cov nqi ntawm cov khoom siv. Ib lo lus nug tseem ceeb uas cov neeg tsim tsa feem ntau nce yog qhov xav tau ntau npaum li cas cement rau 1 cubic meter ntawm pob zeb.
Nws tseem tsim nyog nkag siab tias nws yog qhov sib xyaw, uas tsis muaj qhov sib npaug hauv kev tsim kho. Yuav ua li cas npaj pob zeb nrog koj tus kheej txhais tes, yog li tsis txhob siv nyiaj ntawm kev yuav khoom npaj ua ntej?
pob zeb ua khoom siv hauv tsev
Nov yog cov khoom siv uas muaj cov khoom zoo heev thiab siv ntau yam kev tsim kho. Koj tsis tuaj yeem ua yam tsis muaj pob zeb yog tias koj xav tau sau lub hauv paus lossis ua screed hauv tsev. Qhov muaj zog tshaj plaws thiab feem ntau hnav-resistant mortar nrog viscous sib xws.
Kho cov pob zeb zoo tsis cuam tshuam los ntawm huab cua. Tias yog vim li cas nws yog cov khoom siv hauv tsev nrov tshaj plaws. Niaj hnub no, pob zeb tuaj yeem yuav npaj tau, tab sis tseem muaj qee tus neeg muaj lub siab xav sib xyaw rau lawv tus kheej.
Yuav tsum tau cement ntau npaum li cas rau 1 lub pob zeb?
Ib yam ntawm cov pob zebmortar yog cement. Nws yog cov khoom siv uas siv ntau yam kev tsim kho, txawm tias nws yog ib qho sib tov rau plaster lossis masonry mortar. Cement yog cov hmoov av nplua nuj hauv av uas tov nrog dej kom tau ib homogeneous loj. Qhov sib tov no ces solidifies thiab tig mus rau hauv pob zeb.
Cement yog tau los ntawm annealing los ntawm kev siv kub kub. Cov khoom no yog ib qho tseem ceeb los npaj ib qho kev daws teeb meem. Yuav tsum tau cement ntau npaum li cas rau 1 lub voos xwmfab?
Qhov kev faib ua feem yog nyob ntawm seb cov pob zeb xav tau los npaj. Cov yam ntxwv ntawm cov khoom yuav txawv heev. Qhov zoo tshaj plaws piv txwv hais tias yog tias koj siv cov cement qib M 100 ua lub hauv paus rau pob zeb, koj yuav xav tau me ntsis ntau tshaj peb 50 kg hnab. Qhov siab dua tus lej ntsuas ntawm cov cement, ntau lub hnab ntawm cov khoom siv yuav xav tau. Piv txwv li, txhawm rau ua ib lub voos xwmfab uas siv cov cement qib M 450, koj yuav tsum noj 469 kg ntawm cement - qhov no yog 9 hnab.
Yuav tsum tau pob zeb ntau npaum li cas rau 1 cubic meter ntawm pob zeb?
Crushed pob zeb yog lub ntsiab ntawm cov pob zeb tov, tsis muaj cov khoom siv yuav tsis muaj tag nrho cov khoom xav tau. Tom qab tag nrho, lub pob zeb nws tus kheej yog ib yam khoom muaj zog heev, feem, nws tuav cov sib tov ntau dua. Ua tsaug rau cov pob zeb crushed, pob zeb tsis tawg nyob rau hauv kev cuam tshuam ntawm ib puag ncig. Txhawm rau npaj cov tshuaj zoo hauv qhov ntim ntawm 1 lub voos xwmfab, koj yuav tsum noj 1.08 tons ntawm pob zeb crushed.
Vim cov khoom sib txawv, nws muab faib ua feem. Qhov zoo tshaj plaws rau pob zeb mortar - 5-20. Qhov ntsuas no txhais tau hais tias lub pob zeb hauvtxoj kab uas hla yuav tsum tsis txhob ntau tshaj 20 millimeters. Txhawm rau kom cov khoom ua tau raws li qhov xav tau, nws yog qhov tsim nyog los sift nws los ntawm lub sieve nrog cov hlwb tsim nyog.
Zoo, xav tau xuab zeb ntau npaum li cas rau 1 cubic meter ntawm pob zeb? Xuab zeb yog ib qho tseem ceeb uas yuav tsum tau siv los sau qhov chaw nruab nrab ntawm cov aggregate thiab cov cement. Qhov kev xaiv zoo tshaj plaws hauv kev nyiam dej xuab zeb, raws li nws muaj qhov tsawg kawg nkaus ntawm ntau yam impurities. Yuav kom tau ib lub voos xwmfab, koj xav tau 750 kg ntawm xuab zeb.
Sand feem ntau yog sieved kom tshem tawm lwm yam khoom uas tuaj yeem ua rau tag nrho cov qauv.
Yuav ua li cas yog qhov kev faib ua feem ntawm cov mortar?
Cov khoom tseem ceeb ntawm pob zeb:
- cement;
- sand;
- rubble.
Yog tias koj muab cov pob zeb sib xyaw kom haum, koj tau txais cov khoom sib tov zoo rau kev tsim kho. Ua li no, koj yuav tsum noj 1 feem ntawm cov cement, 3 seem ntawm xuab zeb thiab 5 qhov chaw ntawm cov pob zeb crushed. Cov pob zeb pob zeb yuav tig tawm kom khov, thiab tom qab ua kom tawv tawv nws yuav muaj zog.
Txoj kev yooj yim tshaj plaws los ua cov lej yog nrog kev pab ntawm lub hnab, yog li nws yooj yim dua tsis suav nrog qhov hnyav uas yuav tsum tau ua. Yog li ntawd, rau lo lus nug, yuav tsum tau cement ntau npaum li cas rau 1 lub voos xwmfab, cov lus teb raug yog 300 kilograms.
