Kev tsim kho nrog kev kho dua tshiab ntawm cov dej tsis zoo ntawm cov tsev qub yog qhov nyuaj dua li kev tsim kho tshiab. Nyob rau hauv ib lub tsev, nyob rau hauv cov ntaub ntawv no, nws yuav tsim nyog, piv txwv li, kom ntws thiab ntxuav lub qab daus, thiab ces tshem tawm cov av, tev plaster, quaj qhov chaw ntawm lub screed.
Kev siv cov pob zeb tsis tu ncua rau kev kho qhov no yuav tsis yog qhov kev daws teeb meem zoo. Tom qab tag nrho, ob peb teev dhau los ua ntej kev teeb tsa ntawm cov cement sib tov ntawm tus qauv muaj pes tsawg leeg. Lub sijhawm no, cov tshuaj yuav yooj yim ntxuav cov dej. Yog li ntawd, nyob rau hauv reconstruction ntawm qub vaj tse thiab lug, pob zeb sib tov ntawm ib tug tshwj xeeb ntau yam yog feem ntau siv - ceev-hardening. Cement ntawm hom no hauv kev tsim kho yog qhov xav tau zoo heev. Kab lus nthuav tawm cov yam ntxwv tseem ceeb ntawm cov khoom no.
Composition
Ntau lub tuam txhab tsim cov khoom siv hauv tsev. Yog tias xav tau, niaj hnub no koj tuaj yeem yuav cov khoom sib xyaw ntawm no ntau yam los ntawm ntau lub tuam txhab. Qhov tshwj xeeb proportional muaj pes tsawg leeg ntawm fast-hardening cements yog kev lag luam zais cia ntawm cov tuam txhab tsim lawv. Ntawm lub pobfeem ntau nws tsis qhia tias yog ib feem ntawm cov ntaub ntawv no.
Tab sis txawm li cas los xij, lub hauv paus ntawm cov khoom sib tov, nrog rau cov pa, yog cov cement. Raws li cov khoom siv ntxiv uas muab cov tshuaj tiav lub peev xwm los teeb tsa sai, cov neeg tsim khoom siv tau cov khoom hauv qab no:
- Quicklime.
- YPotassium carbonate.
- YHydrochloric acid.
- Ntshav ntau yam.
Nyob ntawm seb hom additives, lub sij hawm hardening ntawm cov kev daws teeb meem yuav txawv nyob rau hauv tej yam kev txwv. Tau kawg, hauv kev tsim cov khoom siv hauv tsev ntawm hom no, ntau yam khoom siv tuaj yeem siv los ua kom lawv cov plasticity, waterproofing zog, thiab tshuaj tiv thaiv.
Kev ua noj ua haus
Tam sim no muaj ob yam tseem ceeb ntawm cov khoom siv hauv tsev hauv khw. Feem ntau, kev sib xyaw ua kom qhuav qhuav yog siv rau hauv kev kho thiab kev tsim vaj tsev. Nyob rau hauv muaj pes tsawg leeg ntawm xws li cov khoom, cov khoom uas muab ceev ceev yog ntxiv nyob rau hauv lub ntau lawm theem.
Tsis tas li, cov cement-based mortars tuaj yeem npaj ncaj qha rau ntawm qhov chaw tsim kho. Nyob rau hauv cov ntaub ntawv no, cov khoom qhuav nws tus kheej tuaj nrog ib lub kaus poom los yog lub raj mis ntawm cov kua uas muaj ceev ceev additives. Thaum npaj cov tshuaj, nws yog ntxiv rau qhov sib tov es tsis txhob dej.
Scope of application
Feem ntau ceev teeb tsa cov cement sib tovsiv nyob rau hauv lub reconstruction ntawm lub tsev thiab cov qauv. Hauv cov tsev zoo li no, lawv tuaj yeem siv tau, piv txwv li, ua kom tsis muaj dej, tso dej, sib khi:
- Siab.
- Cracks.
- Gaps.
- Hlub.
Ntau zaus, nrog rau kev siv cov ntaub ntawv zoo li no, cov plinths thiab cov hauv paus ntawm cov tsev qub raug kho.
Hauv kev tsim kho tshiab, cov ntaub ntawv zoo li no yog siv los nrawm nrawm ntawm cov thauj tog rau nkoj rau pob zeb, lwm yam hlau qauv, txhua yam ntawm cov ntsiab lus. Qee zaum, cov kev daws teeb meem zoo li no kuj tau siv thaum tso rau hauv qhov cub. Tsis tas li ntawd, cov khoom siv ntawm ntau yam no tuaj yeem siv rau kev tsim cov molded sab hauv kho kom zoo nkauj, thaum txhim kho kab.
Brands thiab manufacturers
Hauv tebchaws Russia, cov khoom sib xyaw ua ke ntawm ntau yam no yog tsim los ntawm cov tuam txhab hauv qab no:
- MAPEI. Pob zeb los ntawm cov chaw tsim khoom no tau muab rau kev lag luam raws li Mapefill hom. Lub tuam txhab no tau tsim nyob rau hauv 30s ntawm lub xyoo pua xeem nyob rau hauv ltalis. Nws yog tam sim no Europe tus tsim khoom loj tshaj plaws ntawm cov tsev sib xyaw, suav nrog kev sib xyaw ceev ceev.
- KT lub zwm txwv. Cov chaw tsim khoom hauv tsev no tau ua haujlwm hauv tebchaws Russia rau ntau tshaj 20 xyoo. Ntxiv nrog rau kev teeb tsa ceev ceev, nws muab cov khoom siv dej tsis zoo thiab cov sealants rau kev ua lag luam.
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"BIRSS". Nws kuj yog ib qho chaw tsim khoom hauv tsev muab kev lag luam nrog cov khoom siv zoo tshaj plaws hauv tsev. Fast hardening cement los ntawm lub tuam txhab no txawvzoo heev thiab kuj pheej yig. Lub tuam txhab tseem tsim cov khoom sib tov rau cov plag tsev tus kheej, plaster, putty thiab lwm yam.
Tsuas muaj ob hom kev sib xyaw ntawm cov khoom lag luam niaj hnub no: M400 thiab M500. Fast-hardening cement M500 txawv ntawm M400 tsuas yog nyob rau hauv uas, tom qab hardening, nws muaj peev xwm tiv taus ib tug loj load. Cov khoom sib xyaw no feem ntau yog siv los kho cov hauv paus, ua kom cov hlau tseem ceeb rau cov pob zeb ua vaj tse.
Basic nta
Qhov sib txawv tseem ceeb ntawm kev teeb tsa cov cement mortars thiab cov zoo tib yam yog qhov muaj peev xwm tig mus rau hauv pob zeb hauv lub sijhawm luv luv. Nyob ntawm cov chaw tsim khoom thiab cov khoom siv ntxiv, cov khoom sib xyaw no tuaj yeem ua kom tawv hauv 1 mus rau 5 feeb. Feem ntau ntawm kev ua lag luam niaj hnub no koj tuaj yeem pom cov ntaub ntawv uas tawv hauv li 3 feeb.
Niaj hnub no, cov khoom sib tov nrawm nrawm yog tsim tawm uas tuaj yeem ua rau nws tus kheej. Qhov zoo ntawm kev siv cov kev daws teeb meem no yog tias lawv tuaj yeem nkag mus rau microcracks thaum lub sijhawm teeb tsa thiab nthuav dav hauv ntim.
Tag nrho cov hom ntawm cov cement-hardening ua niaj hnub no txawv los ntawm cov khoom siv dej tsis zoo. Cov khoom ntawm no ntau yam muaj peev xwm ntawm solidifying txawm nyob rau hauv lub xub ntiag ntawm ib tug ncaj ncees dej backwater. Nyob rau hauv cov xwm txheej zoo li no, lawv tsis eroded thiab tsim ib qho airtight plug, uas tuaj yeem siv sijhawm ntev heev. Feem ntau, cov kev daws teeb meem no tuaj yeem teeb tsa tau zoo thiab nrawm txawm tias nyob hauv dej lossishauv qhov txias.
Yuav siv li cas kom raug
Tus txheej txheem ntawm kev npaj cov khoom siv ceev ceev yog xyaum tsis txawv ntawm cov txheej txheem ntawm kev sib xyaw cov cement sib xyaw. Txawm li cas los xij, nws yog ib qho tseem ceeb kom nkag siab tias nws tsis tuaj yeem npaj ntau qhov kev daws teeb meem ib zaug. Kev sib tov yuav tsum yog ib koob tshuaj uas siv tau li ntawm 1-5 feeb.
Nws tsis pom zoo kom dilute qhov kev teeb tsa ceev ceev uas twb tau pib tawv. Yog tias qhov no ua tiav, kev ua haujlwm ntawm cov khoom tiav yuav poob qis heev. Thaum npaj cov kev daws teeb meem, cov cai hauv qab no feem ntau yuav tsum tau ua raws:
- Dej lossis cov kua tshwj xeeb yuav tsum tau nkag mus rau hauv cov khoom sib xyaw maj mam, hauv me me kom txog thaum tau txais cov khoom pasty.
- Tag nrho cov tshuaj npaj lub sij hawm yuav tsum tsis txhob tshaj qhov chaw tsim tshuaj paus cov lus qhia.
- Qhov chaw yuav patched yuav tsum tau npaj thiab ntxuav ua ntej.
- Cov tshuaj npaj yuav tsum tau siv tam sim.
Cov lus qhia tshwj xeeb
Kneading waterproof fast-hardening cement feem ntau yog ua los ntawm kev tsim khoom sib tov. Nws ntseeg tau tias nws tsis tuaj yeem ua cov txheej txheem no, txawm tias xav tau kev npaj sai ntawm cov yas sib tov, ntawm qhov kub ceev heev. Qhov no yuav ua rau muaj kev puas tsuaj ntawm cov khoom ntawm cov tshuaj tiav.
Nyob rau hauv lub xub ntiag ntawm dej backwater, qhov kho qhov chaw yog thawj zaug rubbed nrog ib tug qhuav ceev-teev sib tov. Ceshla qhov tshwm sim, ib txheej thib ob yog siv los ntawm cov tshuaj npaj siv cov kua lossis dej.
Nyob zoo ib tsoom niam txiv kwv tij neej tsas sawv daws
Quick-hardening cement, zoo li lwm yam, nyob rau hauv tus txheej txheem ntawm kev teeb tsa thiab kho, nws yuav tsum tau ywg dej ib ntus. Nyob rau hauv cov ntaub ntawv no, nws yog ntshaw kom ua raws li ib tug txheej txheem rau tsawg kawg peb hnub. Qhov kev pom zoo no yuav tsum tsis txhob ignored. Txwv tsis pub, thaj yuav tsim cov kab nrib pleb yav tom ntej, uas yuav txo nws txoj kev ua tau zoo.
