Cement screed - cov qauv ntawm kev siv tshuab

Screed yog lub hauv paus rau pem teb npog. Nws siv yog dictated los ntawm qhov yuav tsum tau mus rau theem hauv pem teb ua ntej xov. Tsis tas li ntawd, tus screed yog tsim los muab lub hauv paus rau kev qhia txog lub kaum ntawm inclination thiab masking ntawm ntau yam kev sib txuas lus hluav taws xob. Tsis tas li ntawd, nws ua rau saum npoo qhov tsim nyog ntawm kev sib qoj thiab tswj nws cov hluav taws kub tsim. Cov txhauv tau nta ncaj qha rau ntawm lub hauv av, nrog rau lwm cov khaubncaws sab nraud povtseg. Piv txwv li, cov hluav taws xob los yog lub rwb thaiv tsev.

Qhov ntau tshaj tam sim no yog ib qho kev sib tsoo ntawm cov cement uas yog qhov pheej yig tshaj plaws thiab feem ntau txhim khu kev zoo ntawm kev ua theem pib ntawm lub hauv av. Lub hauv paus rau hom screed yog portland cement (hydraulic cementitious daim ntawv ntawm cov cement sib tov raws li calcium silicates) thiab aluminate cements. Raws li ib tug muab tub lim, raws li txoj cai, ib qho av xuab zeb los yog gravel siv.

Cement screed yuav tsum muaj ib qho thickness ntawm tsawg kawg yog peb caug millimeters, lwm txoj kev pheej hmoo ntawm nws peeling tawm ntawm qhov chaw yog zoo. Lub sijhawm ua kom tiav qhov av hauv pem teb rau hauv pem teb yog kwv yees li nees nkaum yim hnub. Tab sis thaum kawg nws hloov tawm los ua ib qho chaw zoo kawg nkaus thiab muaj zog heev.

Cov cuab yeej ntawm cement screed muaj qee cov nta. Yuav kom tiv thaiv tau ntxiv ntiv nplaum thiab sibpiv ncauj, lub zawm ntawm qhov txhaws yuav tsum tshwm sim nyob rau hauv tej yam kev mob ntawm high humidity. Rau qhov kawg, lub ntub ntub rau ib ntus txog li xya hnub yog them nrog ib lub tshuab zaj duab xis polyethylene, tom qab raug tshem tawm uas nws tau pom zoo kom muab cov nplaum ntub dej sawdust thiab rau xya hnub ib zaug, tsis tu ncua dej nws. Cement screed, uas qhov kev qhia no yog siv, tom qab kev ziab tag nrho yuav muaj kev kawm zoo thiab ua haujlwm ntev.

Qhov siab tshaj plaws ntawm lub hauv paus pib ntim yuav tsum qis tshaj theem hauv pem teb rau cov thickness ntawm cov ntaub pua tsev siv npog. Kev sib sib zog nqus tib sib tsuam sib xyaw yog muab tso rau tshwj xeeb cov duab beacons, uas yog tsim los ua kom muaj ib qhov chaw uas zoo kawg nkaus. Lub caij nyoog ntawm lub slats yuav tsum kwv yees li ib meter. Ua ntej npaj mortar tusyees nteg ntawm ntsia. Tom qab ntim, cov beacons raug muab tshem tawm kom zoo zoo, thiab qhov chaw uas tau muab tso tawm lawm muaj cov tshuaj kua thiab sib zog.

Lwm txoj hau kev rau theem hauv pem teb yog qhuav cement screed. Nws tsis yog li ntawd ntau tsis tau, tab sis nws yog huv, ua hauj lwm ceev thiab tsawg zog-intensive. Lub hauv paus ntsiab lus ntawm lub tsev qhuav xoob tau siv ntev. Tab sis tsis ntev los no, nyob rau hauv lub teeb ntawm lub emergence ntawm tshiab, kuj pheej yig ntaub ntawv, qhov no technology yog ua ntau txaus nyiam thiab xav tau.

Lub hauv paus ntsiab lus ntawm no yog screed yog ntxiv cov polypropylene fibre rau lub cement slurry, uas, muab faib rau hauv qhov sib xyaw, nws txhawb nws thoob ntim, uas nws txo qhov microplastic shrinkage thiab tiv thaiv qhov tsim muaj kab tawg thaum lub sijhawm txheej txheem.

Qhov no screed muaj ntau yam zoo thiab qhov zoo, ntawm cov uas peb tuaj yeem hais qhov ceev ntawm kev ua hauj lwm, nws cov tswv yim tsis tshua muaj zog, kev kho kom ceev heev thiab qis tsawg kawg.