Txawm tias cov neeg uas tsis paub tshwj xeeb hauv kev tsim kho kev lag luam tej zaum yuav paub tias nws tsis tuaj yeem tsim cov qauv niaj hnub yam tsis siv cov cement. Cov kws tshaj lij hauv daim teb no tuaj yeem qhia ntau ntxiv - txog nws cov hom thiab hom, uas muaj cov yam ntxwv zoo sib txawv thiab tus nqi, qhov txawv txav ntawm cov khoom siv no, piv txwv li, cov cement dawb, yog qhov txaus siab tshwj xeeb.
Nws tau pom nws daim ntawv thov hauv kev tsim cov pob zeb zoo nkauj. Cov khoom siv yog lub hauv paus tseem ceeb rau kev tsim ntawm ob qho tib si xim thiab dawb pob zeb, ua kom zoo qhuav nplaum sib tov. Nws yog siv los ua cov pwm zoo nkauj rau dai chav, ntaiv, ciam teb, kab.
Dhau li ntawm nws cov xim qub, cov cement dawb yog ib yam khoom uas muaj huab cua zoo, tiv thaiv te, sulphate tsis kam, thiab siab zog. Ntawm qhov tsis zoo tseem ceeb nyob rau hauv nws, nws yuav tsum tau muab sau tseg qhov tsawg ceevhardening, qis corrosion kuj tshaj grey cement, nce shrinkage tus nqi.
txheej txheem tsim khoom
Qhov zoo thiab cov khoom zoo nkauj ntawm cov khoom siv hauv tsev no tau txiav txim siab los ntawm cov thev naus laus zis tshwj xeeb ntawm nws cov khoom siv. Cov ntaub ntawv nyoos hauv kev tsim khoom tuaj yeem yog limestone thiab kaolin, uas muaj peev xwm tsawg kawg nkaus ntawm manganese thiab hlau oxide, uas muab cov xim grey rau cov cement zoo tib yam. Txhawm rau tiv thaiv kom tsis txhob muaj kev sib kis, lub clinker raug rho tawm haujlwm hauv qhov cub ua haujlwm ntawm cov khoom siv roj av; kev siv cov pob zeb es tsis txhob siv cov pob hlau zoo li no yuav pab tshem tawm cov kab mob ntawm cov clinker thaum sib tsoo. Raws li koj tuaj yeem pom, cov cement dawb, tus nqi yog me ntsis siab dua li ntawm nws cov grey counterparts, muaj cov cuab yeej siv ntau dua thiab kim dua.
Scope of application
Dawb cement yog siv los ua lub hauv paus rau kev tsim cov pob zeb dawb thiab xim, thiab txhawm rau ua tiav cov khoom siv xim zoo tshaj plaws, kev sib tsoo ntawm clinker nrog cov xim xim yog siv rau theem ntawm cov cement ntau lawm..
Cov yam ntxwv zoo nkauj zoo nkauj ntawm cov khoom tso cai kom tsis txhob cuam tshuam qhov chaw ua los ntawm nws kom tiav, tab sis yog tias xav tau, lawv tuaj yeem roughened lossis iav du. Txaus siab rau cov tsos, cov khoom siv terrazzo, xav tsis thoob zoo li cov pob zeb ntuj, tau los ntawm kev ntxiv cov pob zeb marble rau pob zeb. Cib phab ntsa zoo li qub, thaum lub sij hawm tso ntawm uas dawb mortar los yogmuaj qhov ntxoov ntxoo txawv txawv.
Qhov siab xav tau ntawm cov cement dawb yog qhov tseem ceeb. Cov cuab yeej ntawm cov khoom siv no tau yooj yim siv los ntawm cov neeg tsim khoom hauv kev tsim kho qhov av thiab txoj kev txhawm rau txhawm rau txhim kho kev nyab xeeb thaum hmo ntuj.
Vim tias cov cement dawb yog cov khoom siv txawv txawv, yuav tsum tau saib xyuas kom ntseeg tau tias cov tshuab thiab cov cuab yeej uas yuav tuaj yeem raug ntxuav thiab tsis muaj xeb ua ntej yuav khoom. Cov dej uas yuav siv los npaj cov tshuaj yuav tsum huv si. Steel reinforcement yuav tsum tau pre-coated nrog ib txheej ntawm grey pob zeb ua ntej ua hauj lwm.
Rau cov neeg uas yuav siv cov cement dawb, koj tuaj yeem qhia meej tias nws yog tsim nyob rau hauv ob hom: M500 thiab M400, qhov degree ntawm whiteness ntawm cov khoom txiav txim siab nws qib (muaj 3 qib). Dawb cement yog tsim nyob rau hauv Russia, Qaib ntxhw, super-dawb cov ntaub ntawv uas zoo tshaj plaws yog muab los ntawm Denmark.
