Cov khoom siv hydraulic feem ntau yog Portland cement. Nws muaj cov cement clinker zoo nrog gypsum. Qhov kawg tivthaiv tau ntxiv los tswj lub sijhawm teem sijhawm ntawm cov tshuaj tiav.
Muaj ntau ntau yam ntawm Portland cement. Yuav kom tau txais lawv, cov mineralogical muaj pes tsawg leeg yog tswj, ntxhia additives yog qhia. Txhua tus ntawm lawv muaj nws tus kheej cov khoom, uas cuam tshuam rau thaj tsam ntawm cov khoom tiav.
Muaj cov npe nram qab no ntawm cov cement rau hauv uas cov ntxhia ntxiv tau qhia: 600, 550, 500, 400. Qhov feem pua ntawm cov khoom ntxiv yog qhia nyob rau hauv lub cim nrog lub npe D. Piv txwv li, cement PC 400 D20 txhais tau hais tias nws yog Portland cement qib 400, uas muaj 20% additives. Ntxiv - hauv kev nthuav dav ntxiv txog hom khoom siv no.
Txheej txheem ntawm cement qib 400
Ua ntej tshaj, koj yuav tsum paub seb tus lej 400 txhais li cas. Hauv lwm lo lus, cov qauv kuaj ua los ntawm PC 400 D20 cement, cam khwb cia los ntawm M400 cement, muaj peev xwm tiv taus qhov siab ntawm qhov hnyav thiab tsis uacrumbled, tab sis nyob twj ywm. Los ntawm txoj kev, cov qib pob zeb tau txiav txim siab tib yam nkaus: lawv ua tus qauv thiab sim nws hauv chav kuaj siv cov cuab yeej tshwj xeeb.
Muaj ntau ntau hom 400 cement.
- Lub npe "D0" txhais tau hais tias qhov sib tov tsis muaj cov khoom ntxiv. Cov khoom siv muaj lub hom phiaj kev tsim kho dav dav thiab siv rau kev tsim kho cov txheej txheem ya raws.
- "D5" - cov khoom sib tov muaj 5% plasticizers. Nws yog siv los ua cov ntsiab lus siab ceev, tuaj yeem tiv taus cov av noo thiab corrosion.
- "D20" txhais tau tias nees nkaum feem pua ntawm cov cement yog additives. Hom tshuaj no muaj qhov tseem ceeb - nws tau txais lub zog sai sai hauv lub sijhawm pib ntawm solidification.
Vim li cas peb thiaj xav tau tshuaj ntxiv?
Ua tsaug rau kev qhia txog cov ntxhia ntxiv, cov yam ntxwv hauv qab no ntawm PC 400 d20 cement tau txhim kho zoo:
- Corrosion resistance.
- Ntxhais tau dej.
- ntsuas ntsuas kub tiv thaiv.
- siab zog.
- Kev ua haujlwm ntawm cov khoom tiav thiab cov qauv raug tso cai nyob rau hauv ib cheeb tsam huab cua.
- Resistant rau qhov kub thiab txias.
- Tiv thaiv corrosive hnav.
Qhov tsis zoo ntawm kev siv cov tshuaj ntxiv suav nrog kev ua kom tsis zoo ntawm cov tshuaj tiv thaiv Frost. Ntxiv rau, vimminerals cement mortar hardens ntev dua tsis muaj lawv. Tab sis tag nrho cov no yog them los ntawm qhov tseeb hais tias kev siv cov additives txo tus nqi ntawm kim cement clinker, thiaj li hais tias ib lub hnab ntawm cov cement yog pheej yig dua. Thiab qhov no txawm tias qhov tseeb tias cov yam ntxwv ntawm lub zog ntawm Portland cement nrog cov additives tseem zoo ib yam li cov khoom uas tsis muaj additives.
Scope of application
Cement PC 400 D20 yog siv rau kev npaj cov cement mortars thiab sib tov ntawm ntau hom. Nws kuj yog nyob rau hauv kev thov los ntawm cov tuam txhab uas tsim cov pob zeb muaj zog, slabs, kab teeb, phab ntsa panels, ceilings thiab lwm yam khoom. Cov khoom muaj npe yog qhov tseem ceeb, pib nrog kev tso lub hauv paus thiab xaus nrog kev npaj ntawm plaster:
- Nyob hauv kev tsim vaj tsev nyob qis qis.
- Nyob rau kev tsim kho vaj tse.
- In muaj kev tsim kho.
Muaj ib qho tshwj xeeb uas PC 400 D20 cement tsis pom zoo. Cov no yog cov qauv uas yuav tsum muaj kev tiv thaiv siab Frost.
Kev yuav khoom: yam koj xav paub
Qhov zoo ntawm cov khoom siv no feem ntau nyob ntawm kev cia khoom. Cov neeg tsim khoom pom zoo kom khaws cov khoom sib tov kom cov dej noo tsis nkag mus rau hauv lawv. Rau qhov no, ib chav qhuav cais yuav tsum tau faib. Nws yog qhov zoo tshaj yog tias cov khoom yog palletized txwv tsis pub lub hnab hauv qab ntawm cov cement hauv txhua pawg yuav ua kom ntub dej.
Yog li ntawd, mus yuav khoom, hauvUa ntej ntawm tag nrho cov, koj yuav tsum tau xyuam xim rau ntev npaum li cas nws tau ua: qhov ntev ntawm cov khoom yog dag, qhov ntau dua qhov yuav tau txais ib tug zoo sib tov ntawm tes - nyob rau hauv ib lub hlis xwb, yog khaws cia tsis raug, cement yuav poob. 50% ntawm nws lub zog.
Dab tsi yog qhov txiaj ntsig zoo rau cov neeg siv khoom - koj tuaj yeem yuav cov hnab cement ntawm 50 kg lossis 25. Qhov no tso cai rau koj mus yuav cov khoom siv raws nraim li qhov xav tau los daws cov haujlwm tshwj xeeb ntawm kev tsim kho thiab tom qab ntawd tsis ua kom zoo khaws cov khoom seem..
