Screed yog lub hauv paus rau hauv pem teb. Nws siv yog dictated los ntawm qhov yuav tsum tau mus rau theem hauv pem teb nto ua ntej ua tiav. Tsis tas li ntawd, screed yog npaj los muab lub hauv paus ib lub kaum sab xis ntawm inclination thiab npog ntau yam kev sib txuas lus engineering. Tsis tas li ntawd, nws muab qhov chaw tsim nyog ntawm rigidity thiab tswj nws cov cua sov nqus. Lub screed tuaj yeem tso ob qho tib si ncaj qha rau ntawm lub hauv paus ntawm lub hauv paus saum npoo, thiab ntawm ntau yam txheej txheej. Piv txwv li, rau cua sov lossis suab rwb thaiv tsev.
Cement screed yog tam sim no siv dav tshaj plaws raws li qhov pheej yig tshaj plaws thiab txhim khu kev qha tshaj plaws rau qib hauv pem teb hauv qab. Lub hauv paus rau hom screed no yog Portland cement (ib hom hydraulic binder hom cement sib tov raws li calcium silicates) thiab aluminate cements. Raws li kev muab tub lim, raws li txoj cai, siv cov xuab zeb los yog pob zeb.
Cov cement screed yuav tsum yog tsawg kawg peb caug millimeters tuab,Txwv tsis pub, muaj kev pheej hmoo siab ntawm tev tawm ntawm qhov chaw. Lub sij hawm ua kom tiav ziab ntawm hom ntawm lub hauv paus rau hauv pem teb yog txog nees nkaum yim hnub. Tab sis qhov tshwm sim yog ib qho chaw tiaj tiaj thiab ruaj khov heev.
Cov khoom siv cement screed muaj qee yam tshwj xeeb. Txhawm rau tiv thaiv kev tawg ntxiv thiab tev tawm, lub hardening ntawm xws li screed yuav tsum tshwm sim nyob rau hauv tej yam kev mob ntawm high humidity. Txog rau qhov kawg no, cov screed ntub yog them nrog ib zaj duab xis yas ntev txog xya hnub, tom qab ntawd nws raug nquahu kom npog qhov chaw nrog ntub sawdust thiab tsis tu ncua dej nws rau xya hnub. Cement screed, mus rau lub cuab yeej ntawm txoj kev no yog siv, tom qab ua tiav ziab, yuav muaj kev ua tau zoo thiab ua haujlwm ntev.
Lub siab txwv ntawm lub hauv paus tiav lawm yuav tsum nyob hauv qab theem hauv pem teb los ntawm qhov tuab ntawm cov flooring npaj. Cov cement screed nws tus kheej yog nteg nyob rau hauv tshwj xeeb parallel lighthouse rails, uas yog tsim los muab ib tug zoo kawg nkaus tiaj tus nto. Lub sijhawm nruab nrab ntawm cov ntsia hlau yuav tsum yog kwv yees li ib meter. Ib qho kev npaj ua ntej cement mortar yog pw hauv ib txheej txheej ntawm cov slats. Tom qab tso, cov beacons tau ua tib zoo tshem tawm, thiab qhov chaw seem yog ntim nrog mortar thiab leveled.
Lwm txoj hauv kev rau theem hauv pem teb yog qhuav cement screed. Nws tseem tsis tau nthuav dav, txawm hais tias nws huv dua, sai dua thiab tsawg duamob hnyav. Lub hauv paus ntsiab lus ntawm cov av qhuav qhuav tau siv rau lub sijhawm ntev. Tab sis tsis ntev los no, nyob rau hauv lub teeb ntawm qhov tshwm sim ntawm cov khoom tshiab, kuj pheej yig, cov cuab yeej no tau ua ntau txaus nyiam thiab xav tau.
Lub hauv paus ntsiab lus ntawm cov cuab yeej ntawm hom screed no muab rau kev sib ntxiv ntawm polypropylene fibers rau cov cement mortar, uas, sib npaug ntawm qhov sib tov, txhawb nqa nws thoob plaws lub ntim, uas txo qis microplastic shrinkage thiab tiv thaiv kev tsim. ntawm cov kab nrib pleb thaum lub sij hawm hardening.
Cov screed no muaj ntau qhov zoo thiab qhov tsis zoo, ntawm cov uas peb tuaj yeem nco ntsoov qhov nrawm ntawm kev ua haujlwm, nws siv zog ua haujlwm tsawg, ziab sai heev thiab qis qis.
