2024 Tus sau: Beatrice Philips | [email protected]. Kawg hloov kho: 2024-01-18 12:13
Raws li koj paub, cov cement sib tov yog lub hauv paus ntawm kev tsim kho lossis ua haujlwm kho dua tshiab. Txawm hais tias nws tau teeb tsa lub hauv paus lossis npaj phab ntsa rau cov ntawv ntsa lossis pleev xim, cov cement yog lub hauv paus ntawm txhua yam. Portland MAAs yog ib hom cement uas muaj ntau yam kev siv ncaj ncees.
Cov khoom lag luam los ntawm M400 hom yog ib qho ntawm qhov xav tau tshaj plaws ntawm kev ua lag luam hauv tsev vim qhov pom tau zoo, cov yam ntxwv zoo thiab tus nqi tsim nyog. Lub tuam txhab tau nyob rau hauv kev tsim kho kev lag luam tau ntev thiab tau paub zoo nrog cov thev naus laus zis zoo tshaj plaws rau kev tsim cov khoom siv raw li no, uas tau lees tias muaj kev ntseeg tau ntau dua.
Nta thiab Cov txiaj ntsig
Portland cement yog ib qho ntawm cov subtypes ntawm cov cement. Nws muaj gypsum, hmoov clinker thiab lwm yam ntxiv, uas peb yuav hais hauv qab no. Nws yuav tsum raug sau tseg tias kev tsim cov tshuaj M400 sib xyaw ntawm txhua theem yog nyob hauv kev tswj nruj, txhua qhov ntxiv tau kawm tas li thiab txhim kho.
Hnub no, ntxiv rau cov khoom xyaw saum toj no, cov tshuaj lom neeg muaj pes tsawg leeg ntawm Portland suav nrog cov hauv qab no: calcium oxide, silicon dioxide, hlau oxide, aluminium oxide.
Thaum cuam tshuam nrog cov hauv paus dej, clinker txhawb nqa kev tsim cov zaub mov tshiab, xws li cov dej sib xyaw ua ke uas tsim cov pob zeb xis mas. Kev faib tawm ntawm cov khoom sib xyaw tshwm sim raws li lub hom phiaj thiab cov khoom siv ntxiv.
Cov hom hauv qab no yog qhov txawv:
- Portland MAAs (PC);
- ceev-teeb Portland MAAs (BTTS);
- hydrophobic khoom (HF);
- muaj pes tsawg leeg tiv taus sulfate (SS);
- plasticized sib tov (PL);
- dawb thiab xim sib xyaw (BC);
- slag portland MAAs (SHPC);
- pozzolanic khoom (PPT);
- nthuav sib tov.
Portland MAAs M400 muaj ntau qhov zoo. Cov sib xyaw ua kom muaj zog ntxiv, tsis hnov mob rau kev hloov pauv ntawm qhov kub thiab txias, thiab tseem tiv taus qhov tsis zoo ib puag ncig. Cov khoom sib xyaw no tiv taus cov te hnyav heev, uas ua rau lub sijhawm khaws cia ntev dua ntawm cov phab ntsa ntawm cov tsev.
Portland MAAs ua kom muaj kev ruaj ntseg ntawm cov pob zeb ua haujlwm ntxiv mus rau qhov cuam tshuam ntawm qhov tseem ceeb qis lossis siab kub. Cov tsev yuav muaj kev pab cuam lub neej ntev hauv txhua qhov huab cua, txawm tias tsis muaj cov khoom tshwj xeeb ntxiv rau hauv cov cement los tiv thaiv kev cuam tshuam los ntawm te.
Kev sib xyaw ua ke los ntawm M400 teeb nrawm heev vim qhov ntxiv ntawm gypsum hauv qhov sib piv ntawm 3-5% ntawm tag nrho cov ntim. Ib qho tseem ceeb taw tes uas cuam tshuam rau ob qho nrawm thiab qhov ua tau zoo ntawm kev teeb tsa yog hom kev sib tsoo: qhov me dua nws yog, cov pob zeb ua kom nrawm dua mus txog nws lub zog zoo.
Txawm li cas los xij, qhov ntom ntom ntawm cov txheej txheem hauv daim ntawv qhuav tuaj yeem hloov pauv raws li cov khoom zoo pib ua kom khov. Cov kws tshaj lij tshaj lij pom zoo yuav cov Portland cement nrog cov nplej ntawm 11-21 microns loj.
Qhov nqus tshwj xeeb ntawm cov cement hauv M400 hom sib txawv nyob ntawm theem ntawm nws txoj kev npaj . Npaj tshiab Portland cement hnyav 1000-1200 m3, cov ntaub ntawv nyuam qhuav xa los ntawm lub tshuab tshwj xeeb muaj qhov hnyav tshwj xeeb zoo ib yam. Yog tias muaj pes tsawg leeg tau khaws cia ntev rau ntawm lub txee hauv khw, tom qab ntawd nws qhov ntom nce mus txog 1500-1700 m3. Qhov no tshwm sim vim yog kev sib sau ua ke ntawm cov khoom thiab txo qis ntawm qhov nrug ntawm lawv.
Txawm hais tias tus nqi pheej yig ntawm M400 cov khoom lag luam, lawv tau tsim tawm hauv qhov loj me: 25 kg thiab 50 kg hnab.
Cov kev ntsuas ntawm qib 400
Portland MAAs tau txiav txim siab yog ib qho ntawm cov ntaub ntawv yooj yim rau kev tsim kho thiab ua haujlwm kho. Kev sib xyaw ua ke thoob ntiaj teb muaj qhov ntsuas pom tau zoo thiab kev siv nyiaj txiag. Cov khoom siv no muaj qhov nrawm nrawm txog 400 kg rau ib m2, feem, lub nra tuaj yeem loj heev, nws tsis yog qhov cuam tshuam rau nws. M400 tsis muaj ntau dua 5% gypsum, uas tseem yog qhov muaj txiaj ntsig zoo ntawm kev sib xyaw, thaum tus nqi ntawm cov tshuaj ntxiv sib txawv ntawm 0 txog 20%. Cov dej xav tau ntawm Portland MAAs yog 21-25%, thiab cov sib xyaw ua kom tawv tawv li ntawm kaum ib teev.
Npav thiab thaj chaw siv
Hom Portland MAAs yog nws tus yam ntxwv tseem ceeb, vim nws yog los ntawm nws tias kev tsim cov khoom sib xyaw thiab qib ntawm lub zog sib zog tuaj. Nyob rau hauv cov ntaub ntawv ntawm M400 muaj pes tsawg leeg, nws yog sib npaug rau 400 kg ib cm2. Cov yam ntxwv no ua rau nws siv tau cov khoom siv cement rau ntau qhov xwm txheej: lawv tuaj yeem ua lub hauv paus ruaj khov lossis nchuav pob zeb rau kev ua pauj. Raws li cov ntawv cim khoom, nws tau txiav txim siab seb puas muaj cov yas yas ntxiv rau sab hauv, uas ua rau kom muaj kev tiv thaiv kev ya raws ntawm qhov sib xyaw thiab ua rau nws muaj cov yam ntxwv tiv thaiv xeb. Ua tsaug rau cov khoom no, qhov ua kom qhuav ntawm qhov muaj pes tsawg leeg hauv ib qho nruab nrab, nws yog kua lossis huab cua, tau tswj hwm.
Tsis tas li, qee qhov kev teev npe tau teev tseg hauv qhov cim, uas qhia txog hom thiab tus lej ntawm cov khoom ntxiv. Lawv, nyeg, cuam tshuam rau thaj chaw siv Portland 400 qib xis mas.
Cov yam ntxwv hauv qab no tuaj yeem pom ntawm qhov cim:
- D0;
- D5;
- D20;
- D20B.
Tus lej tom qab tsab ntawv "D" qhia tias muaj qee yam ntxiv hauv feem pua.
Yog li, D0 cim qhia rau tus neeg yuav khoom tias qhov no yog Portland MAAs ntawm keeb kwm ntshiab, qhov uas tsis muaj cov khoom siv ntxiv uas tau ntxiv rau kev sib xyaw ua ke. Cov khoom no yog siv los ua feem ntau ntawm cov pob zeb siv hauv cov av noo siab lossis tiv tauj nrog cov dej nyiam.
Portland MAAs D5 yog siv rau zus tau tej cov high-density load-tau cov kabmob hais, xws li slabs los yog blocks rau tuaj txoos ua ke yam ntawm cov me nyuam yaus. D5 muab lub zog siab tshaj plaws vim nce hydrophobicity thiab tiv thaiv kev xeb.
Cement sib tov D20 muaj cov yam ntxwv zoo tshaj plaws , uas tso cai rau nws siv los tsim cov khoom sib cais rau cov hlau sib dhos, cov hauv paus tsim vaj tsev lossis lwm qhov ntawm cov tsev. Nws kuj tseem haum rau ntau lwm yam txheej txheej uas nquag ntsib nrog ib puag ncig tsis zoo. Piv txwv, pobzeb ntawm txoj kev taug lossis pob zeb rau ntawm txoj kev.
Ib qho tshwj xeeb ntawm cov khoom no yog qhov ua kom nrawm nrawm, txawm tias nyob rau thawj theem ntawm kev ziab. Kev npaj ua vaj tsev raws lub hauv paus ntawm D20 cov khoom tau teeb tsa tom qab 11 teev.
Portland MAAs D20B yog cov khoom siv tau zoo uas tuaj yeem siv tau rau txhua qhov chaw. Qhov no tau lees paub los ntawm qhov muaj cov khoom xyaw ntxiv hauv qhov sib xyaw. Ntawm txhua qhov khoom siv M400, qhov no suav tias yog qhov ua tau zoo tshaj plaws thiab muaj qhov ua kom nrawm tshaj plaws.
Kev cim tshiab ntawm cov cement sib tov M400
Raws li txoj cai, feem ntau ntawm cov tuam txhab Lavxias uas tsim Portland cement siv cov ntawv sau saum toj saud xaiv. Txawm li cas los xij, nws twb dhau mus me ntsis lawm, yog li ntawd, raws li GOST 31108-2003, ib qho tshiab, cov cim ntxiv txoj hauv kev tau lees paub hauv European Union, uas yog qhov ntau ntxiv, tau tsim.
- CEM . Cov cim no qhia tias qhov no yog Portland cement ntshiab uas tsis muaj cov khoom xyaw ntxiv.
- CEMII - qhia tias muaj cov slag nyob rau hauv muaj pes tsawg leeg ntawm Portland MAAs. Nyob ntawm qib ntawm cov ntsiab lus ntawm cov khoom no, kev sib xyaw tau muab faib ua ob pawg: thawj qhov nrog cim "A" muaj 6-20% slag, thiab qhov thib ob-"B" muaj 20-35% ntawm cov khoom no.
Raws li GOST 31108-2003, Portland cement hom tau tso tseg los ua lub cim tseem ceeb, tam sim no nws yog qib muaj zog. Yog li, qhov muaj pes tsawg leeg ntawm M400 pib raug xaiv B30. Tsab ntawv "B" tau ntxiv rau qhov cim ntawm kev teeb tsa nrawm cement D20.
Los ntawm kev saib cov vis dis aus hauv qab no, koj tuaj yeem kawm paub yuav xaiv cov cement zoo li cas rau koj cov tshuaj khib.
Pom zoo:
Kev Sib Xyaw Ua Kom Qhuav Thoob Ntiaj Teb: Cov Cement Sib Tov Sib Xyaw, Cov Yam Ntxwv Thiab Daim Ntawv Thov Ntawm M300 Cov Khoom Sib Xyaw Nrog Ntim Ntawm 50 Kg Thiab M200
Dab tsi yog lub hom phiaj qhuav cug? Yuav npaj thiab siv nws li cas? Nws puas muaj txiaj ntsig los siv cov khoom sib xyaw thoob ntiaj teb? Hom kev sib xyaw tsev qhuav muaj dab tsi? Dab tsi yog lwm lub npe rau kev sib xyaw masonry cement?
Cov Kua Nplaum Thoob Ntiaj Teb: Cov Yam Ntxwv Tshwj Xeeb Thiab Cov Lus Qhia Rau Kev Siv Cov Khoom Sib Xyaw Rau Cov Ntawv Ntsa, Hloov Pauv "Tus Xib Hwb" Thiab "Secunda", Cov Kua Nplaum Ntshiab, Tsim Los Ntawm Henkel Thiab UHU
Cov kua nplaum thoob ntiaj teb tso cai rau koj los sib txuas ntau yam khoom siv. Nws muaj cov yam ntxwv zoo li cas? Cov lus qhia dab tsi yuav tsum tau ua raws rau daim ntawv thov kev sib xyaw rau cov ntawv ntsa? Cov kev xaiv yog dab tsi?
Kev Faib Ua Feem Ntawm Cov Pob Zeb Rau Thaj Chaw Dig Muag: Kev Sib Xyaw Ntawm Cov Tshuaj Hauv Cov Khoom Sib Xyaw Ua Ke, Qhov Sib Npaug Hauv Cov Thoob Thiab Cov Thoob, Qhov Sib Npaug Ntawm Cov Cement Ntawm Ntau Hom Rau Nchuav Thaj Chaw Dig Muag Nyob Ib Puag Ncig Lub Tsev
Qhov muag tsis pom thaj chaw - pob zeb ua ke nyob ib sab rau lub hauv paus ntawm lub tsev raws nws ib puag ncig. Nws yog qhov xav tau los tiv thaiv lub hauv paus los ntawm kev puas tsuaj vim los nag ntev, los ntawm cov dej ntau uas tau ntws tawm los ntawm cov dej ntws sau ze ntawm lub hauv paus ntawm thaj chaw.
Cement-sand Plaster: Ua Kom Tiav Cov Phab Ntsa Nrog Cov Cement-sand Mortar Thiab Cov Sib Xyaw Ntawm Cov Plaster Sib Xyaw Rau Sab Hauv Ua Haujlwm, Cov Yam Ntxwv Ntawm Cov Khoom "Prospectors"
Cement-sand plaster yog ib qib ntawm kev ua tiav thiab ua haujlwm ntau yam. Yuav xaiv cov cement-sand plaster koj tus kheej li cas? Dab tsi yog qhov dav ntawm plaster?
Cov Khoom Siv Vov Tsev RCP 350: Cov Yam Ntxwv Tshwj Xeeb Thiab Sib Txawv Los Ntawm RPP 300, Qhov Hnyav Thiab Cov Yam Ntxwv Tshwj Xeeb, Txiav Txim Siab Lub Npe, Yob Tuab 15 M Thiab Lwm Yam Tsis. Yuav Ua Li Cas Pawg?
Cov ntaub ntawv vov tsev RCP 350: cov yam ntxwv tshwj xeeb, qhov hnyav, cov yam ntxwv tshwj xeeb thiab qhov sib txawv ntawm RPP 300. Kev piav qhia txog kev tsim npe RCP 350 thiab RPP 300. Nws siv qhov twg? Yuav khaws thiab teeb kom raug?
