Cement yog ib qho khoom siv tsis zoo hauv cov hmoov qhuav, uas, thaum cuam tshuam nrog dej, tsim cov tshuaj yas, uas tom qab ib ntus, raws li cov txheej txheem physicochemical, hloov mus rau hauv lub xeev ruaj khov. Cov khoom no tuaj yeem ua kom tawv thiab khaws nws lub zog ob qho tib si hauv dej thiab hauv huab cua.
Cement qib m400
M400 - cement ua los ntawm gypsum, zoo clinker sib tsoo thiab tshwj xeeb additives. Tus naj npawb 400 qhia tias, tom qab hardening, qhov sib tov muaj peev xwm tiv taus qhov hnyav txog 400 kg / cm.
Cov khoom siv hauv tsev no yog tsim los ua raws li cov qauv kev qhia, thiab qhov zoo ntawm cov khoom tiav yog tswj nruj, txij li cov qauv pob zeb uas muaj cov cement yuav tsum muaj kev ruaj ntseg thiab kev ntseeg siab.
yam ntxwv
M400 - cement nrog lub zog siab, Frost tsis kam, dej tsis kam, ua haujlwm ntev thiab tiv thaiv corrosion. Qhov no yog kab tias lub npe nrov tshaj plaws hauv kev tsim kho hauv tsev thiab kev lag luam. Nws tuaj yeem siv los ua cov ntawv khi rau hauv mortar lossis pob zeb, thiab tseem siv tau rau hauv kev tsim kho cov pob zeb ua kom muaj zog, vim tias lub zog yog qhov tsim nyog rau cov tsev no. Cov khoom no tau txais kev lees paub zoo los ntawm European thiab Lavxias cov neeg tsim khoom.
Qhov zoo thiab qhov tsis zoo
M400 - cement endowed nrog ntau qhov zoo:
- Tus yam ntxwv muaj zog.
- Resistant rau noo noo, kub heev thiab corrosive hnav.
- Lub neej ua haujlwm ntev ntawm cov pob zeb muaj zog.
- Muaj peev xwm ntawm daim ntawv thov hauv ib cheeb tsam huab cua, yam tsis muaj tshuaj tiv thaiv kab mob ntxiv. Yog li, M400 yog cov cement uas tuaj yeem tiv taus qhov kub thiab txias.
- Ntau yam kev thov. Yuav siv tau rau plastering thiab masonry, lub hauv paus, thiab lwm yam.
- Lwm qhov txiaj ntsig tseem ceeb yog qhov tsis muaj qhov tawg txawm tias hloov pauv ntawm thev naus laus zis.
- Ntxiv rau, M400 tseem pheej yig dua li cov npe siab dua, uas txuag nyiaj txiag.
Qhov tsuas yog qhov tsis zoo ntawm M400 yog nws lub zog. Nws tsis haum rau kev tsim vaj tsev siab. Nyob rau hauv tag nrho lwm yam, hom cement no tsuas yog yeej.
Marking
Cim "M400"txhais tau hais tias lub zog compressive ntawm cov khoom no yog 400 kgf / cm². Nws kuj qhia txog qhov muaj cov plasticizers hauv cov cement. Cov khoom siv ntxiv ua rau cov yam ntxwv tiv thaiv corrosion thiab dej tsis kam ntawm cov khoom sib tov, uas tso cai rau nws los siv rau kev tsim cov pob zeb loj uas tuaj yeem ua haujlwm hauv ib puag ncig hnyav lossis av noo. Qhov feem pua ntawm cov additives tuaj yeem ncav cuag 20%. Qhov kev xaiv no yog siv rau lub hnab tom qab tsab ntawv "D".
Daim ntawv thov
Raws li txoj cai, cov yam ntxwv thiab qhov ntau ntawm cov khoom ntxiv cuam tshuam ncaj qha rau thaj tsam ntawm cov cement. Piv txwv li:
- D0 yog Portland cement tsis muaj tshuaj ntxiv. Nws muaj lub hom phiaj kev tsim kho dav dav thiab siv los npaj cov txheej txheem daws teeb meem. Feem ntau ntawm cov vaj tse pob zeb siv nyob rau hauv cov xwm txheej ntawm cov av noo yog tsim los ntawm cov cement.
- d5 - Siv rau kev tsim cov khoom lag luam-cov kab mob uas muaj ntom ntom ntom ntom ntom, xws li lub hauv paus thaiv, hauv pem teb. Xws li cov cement yog corrosion resistant thiab ntau hydrophobic.
- D20 - siv rau hauv kev tsim cov khoom siv ntxiv dag zog (curbs, blocks ntawm prefabricated foundations, paving slabs). Xws li Portland cement yog tus cwj pwm los ntawm kev ceev ceev ntawm lub zog thaum pib ntawm solidification. Pob zeb ua los ntawm D20 teeb tom qab 12 teev.
M400 cement (50 kg): nqe
Tus nqi ntawm cov khoom piav qhia tsis tuaj yeem hu ua siab, thiab nws nyob ntawm hom, hom, khoom thiab ntim ntawm cov khoom xaj. Yuav kom paub cov nqi ntawm ib lub hnab ntawm cov cement M400, koj xav tau tus nqi ntawm 1 tujmuab faib los ntawm tus naj npawb ntawm lub hnab ntawm 1 ton, i.e. los ntawm 40.
Txhua tus neeg siv khoom, tau kawg, txaus siab rau kev yuav khoom ntawm tus nqi zoo dua - pheej yig dua. Yog li dab tsi cuam tshuam tus nqi hauv peb rooj plaub? Wb saib:
- Qhov muaj cov ntxhia ntxiv ua rau txo tus nqi ntawm Portland cement, vim nws feem pua ntawm cov dej sib tov sib txawv. Yog li, cement M400 nrog qhov feem pua ntawm cov slag yuav raug nqi tsawg dua yam tsis muaj tshuaj ntxiv.
- Plasticizers, ntawm qhov tsis sib xws, nce nws tus nqi.
- Lwm yam yog qhov zoo ntawm kev sib tsoo: qhov zoo dua cov clinker granules raug crushed nyob rau hauv ntau lawm, ntau dua cov kev ua ntawm cov sib tov, thiab, raws li, tus nqi siab dua.
- Tus nqi ntawm ib kg ntawm M400 cement yog qhov tsim nyog cuam tshuam los ntawm cov chaw tsim khoom. Txij li lawv txhua tus nyob hauv ntau qhov chaw ntawm lub tebchaws, lawv cov nqi tsheb thauj mus los sib txawv.
- Ntim kuj cuam tshuam rau tus nqi, vim tias muag cov khoom no hauv ntau lossis ntim hauv 25 kg lossis 50 kg hnab yog cov khoom sib txawv kiag li, txij li cov nqi ntawm lub hnab lawv tus kheej, cov nqi ntim khoom, thiab lwm yam. yuav raug suav nrog
M400 cement (lub hnab) raug nqi 190-225 rubles ntawm qhov nruab nrab.
Cov lus pom zoo ua ntej yuav khoom
Thaum yuav cov khoom piav qhia, nws yog qhov zoo tshaj los xaiv Portland cement, uas tau ntim rau hauv hnab. Txawm hais tias qhov sib txawv ntawm tus nqi yuav yog li 20%, koj yuav paub tseeb tias nws "hnub nyoog" thiab qhov zoo. Qhov tseeb yog tias lub txee lub neej ntawm cov cement yog luv luv - tsuas yog 6 lub hlis, thiab dhau sijhawm nws maj mam pib poob nws cov khoom zoo, thiab cov khoom lag luam poob qis.
Hnub tsim khoom ntawm cov khoom ntim ua ntej yog sivncaj qha mus rau lub hnab. Thaum yuav los ntawm qhov hnyav, koj yuav tau txais cov lus ntawm tus neeg muag khoom. Kev khaws cia kuj tseem ceeb heev, txij li thaum cov dej noo nkag mus rau hauv cov cement, cov txheej txheem dej tsis tuaj yeem pib hauv nws. Kev tiv thaiv lub hnab airtight los ntawm cov dej noo yog yooj yim dua li cov piled mound. Nws tsis yog kev lag luam siv tau los siv cov khoom qub, cov cemented.
