Ua ntej tshaj, ntxuav sab nraub qaum ntawm cov vuas. Yog tias cov xim av, cov txheej uas ntab thiab cov hmoov tso tawm seem ntawm sab nraub qaum ntawm cov vuas tsis tau ntxuav, nws yooj yim sib sau ua ke thiab tsis ua ib zaj duab xis tom qab siv cov nplaum. Nco ntsoov tshwj xeeb, cov vuas uas tau ntxuav tsuas yog siv cov nplaum pleev xim tom qab lawv qhuav lawm.
Thaum siv cov nplaum ib feem ntawm cov vuas vov tsev, thov kom tag nrho thiab nyias li sai tau. Yog tias cov nplaum tsis pom thaum siv cov nplaum, yuav muaj qhov khoob hauv zos. Cov nplaum tuab dua, qhov zoo dua, tab sis yuav tsum tau siv nyias li sai tau hauv qab txheej txheej tag nrho, kom qhov ziab sai dua thiab yuav tsis qhuav tsis sib npaug.
Tsis txhob ntxiv dej rau cov nplaum ib feem ntawm cov vuas pobzeb. Kev ntxiv dej yuav ua rau cov nplaum tsis sib xyaw thiab txo cov polymer qub, uas yuav cuam tshuam loj heev rau qhov zoo ntawm cov nplaum. Tom qab siv, nws yuav yooj yim ua rau muaj teeb meem xws li polycondensation thiab sagging thaum lub sijhawm tsim kho.
Tsis pub ntxiv cov nplaum cement thiab vuas pobzeb rau hauv cov nplaum vuas pobzeb uas muaj ib feem xwb. Nws tsis yog ib yam khoom ntxiv. Txawm hais tias cov nplaum vuas pobzeb thiab cement sib haum zoo, nws tsis tuaj yeem ntxiv rau cov nplaum vuas pobzeb. Yog tias koj xav kom cov cement mortar ua haujlwm tau zoo, koj tuaj yeem ntxiv cov nplaum mortar muaj zog, uas tuaj yeem txhim kho kev tuav dej thiab kev sib txuas ntawm cov cement mortar.
Cov nplaum pobzeb ib feem tsis tuaj yeem siv ncaj qha rau ntawm phab ntsa, tab sis tsuas yog rau sab nraub qaum ntawm cov pobzeb xwb. Cov nplaum pobzeb ib feem tsim cov zaj duab xis txuas ntxiv ntawm cov polymers uas yooj ywm heev, uas tsis tuaj yeem nkag mus thiab txhawb nqa phab ntsa. Yog li ntawd, cov nplaum pobzeb ib feem tsuas yog tsim rau kev txhawb nqa sab nraub qaum ntawm cov pobzeb kom txhim kho kev nplaum ntawm cov ntaub ntawv pobzeb thiab cov pobzeb. qhov cuam tshuam ntawm kev sib txuas.
Lub sijhawm tshaj tawm: Plaub Hlis-25-2024