Txhua hom kev tsim kho suav nrog kev siv qee yam thev naus laus zis thiab khoom siv. Yog li nws tsis yog ib txwm tsim nyog los siv cov pob zeb zoo tib yam rau kev npaj ntau yam qauv. Nws tuaj yeem hloov tau los ntawm lwm hom mortar, uas yooj yim rau kev ua thiab tsim khoom. Thiab cov kev cai tshwj xeeb no tau ntsib los ntawm ntshiv pob zeb. Thiab nws tau siv dav vim nws cov khoom.
Lean qhob yog ib hom kev sib xyaw hauv tsev uas feem pua ntawm cov ntaub ntawv yog tsawg dua cov ntsiab lus ntawm cov muab tub lim. Nws tsis yog ruaj heev. Tab sis nws cov txiaj ntsig tseem ceeb yog tus nqi qis thiab yooj yim ntawm kev teeb tsa. Nws belongs rau chav kawm ntawm cov khoom hnyav B5, B7.5, B10, B12.5, B15. Nws tau txais daim ntawv thov dav tshaj plaws hauv kev tsim vaj tsev ntiag tug, vim nws cov yam ntxwv muaj zog txaus txaus rau thaj chaw no. Tsis tas li ntawd, hom mortar no hu ua dov. Qhov no yog vim lub fact tias nws yog feem ntau siv nyob rau hauv kev tsim kho, raws li nws tau yooj yim dov tawm nrog ib tug txoj kev roller.
Kev sib xyaw ua ke los ntawm qhov ntim ntawm cov khoom siv ntshiv yog: 1 feem ntawm cov cement, 3 - xuab zeb thiab 6 - muab tub lim. Yog li, rau kev sib tov 1 cubic meter ntawm mortar, 160 kilograms ntawm cement, 2200 kilograms ntawm xuab zeb thiab muab tub lim, nrog rau cov dej nyob rau hauv ib ntim ntawm 75 litres yuav tsum tau. Qee lub sij hawm tshwj xeeb plasticizers tau ntxiv rau kev daws kom txuag tau cement. Nyob rau hauv rooj plaub no, nws yog ib qho tseem ceeb heev uas yuav tsum tau coj mus rau hauv tus account tias cov ntsiab lus ntawm ntau yam hmoov av-zoo li thiab av nplaum hais nyob rau hauv tag nrho cov tshuaj tsis pub tshaj 10%. Txwv tsis pub, qhov zoo ntawm cov khoom tiav yuav qis.
Nyob ntawm qhov loj ntawm cov muab tub lim, uas yog ib feem ntawm cov pob zeb ntshiv, nws muab faib ua nplua-grained thiab coarse-grained. Cov muaj pes tsawg leeg ntawm thawj muaj xws li granules txog li 5 hli, thiab qhov thib ob - mus txog 40 hli. Tom qab kneading, lub mortar yuav tsum muaj ib tug zoo ib yam li lub ntiaj teb ntub dej.
Lean pob zeb, cov muaj pes tsawg leeg uas muaj ib feem me me ntawm cov binders, yog siv dav hauv kev tsim vaj tsev ntiag tug. Los ntawm nws tsim lub hauv paus rau pouring lub hauv paus los yog screed ntawm terrace thiab nyob rau hauv lub tsev. Feem ntau nws yog siv rau theem hauv pem teb. Los ntawm nws koj tuaj yeem tsim cov phab ntsa, lub hauv paus tapes, qab nthab crowns, nrog rau cov ceilings lawv tus kheej, ntaiv thiab monolithic lintels. Tab sis qhov no tsuas yog ua tau nyob rau hauv kev tsim kho qis, vim tias nyob rau hauv cov khoom tseem ceeb, cov yam ntxwv ntawm lub zog uas cov pob zeb tsis muaj peev xwm yuav tsis txaus, uas tuaj yeem ua rau muaj kev puas tsuaj loj. Cov khoom siv no tau pom qhov dav tshaj plaws hauv kev tsim kho txoj kev. Los ntawm nws tsim lub hauv paus rau asph alt qhob pavement.
Qhov chaw ntshiv pob zeb yuav tsum tau ua tam sim tom qab nws tau npaj thiab xa mus rau qhov chaw. Yog hais tias qhov kub ntawm ambient tshaj 25 degrees, ces hardening retarders feem ntau yog ntxiv rau cov tshuaj, uas txo tus nqi ntawm curing. Lawv qhov ntau npaum li cas tuaj yeem ncav cuag li 1% los ntawm qhov hnyav ntawm cov cement siv rau hauv mortar. Lawv tso cai rau koj nce lub sijhawm rau kev thauj mus los thiab kev teeb tsa los ntawm ib teev mus rau ib teev thiab ib nrab. Nyob rau tib lub sijhawm, qhov ntsuas huab cua tsawg kawg nkaus rau kev ua haujlwm yuav tsum tsis txhob qis dua 5 degrees.
