Mechanically sprayed mortar, tseem hu ua jetted mortar, yog ib txoj hauv kev ntawm cov tshuaj txau rau ntawm qhov chaw siv lub tshuab. Cov txheej txheem no yog siv rau hauv kev tsim cov phab ntsa, cov plag tsev thiab lub ru tsev. Cov txheej txheem yuav tsum tau siv cov hydroxypropyl methylcellulose ether (HPMC) raws li lub hauv paus ntsiab lus ntawm cov tshuaj mortar. HPMC muaj ob peb qhov zoo uas ua rau nws yog ib qho zoo heev ntxiv rau cov tshuaj tsuag tshuaj mortars.
Kev ua tau zoo ntawm HPMC hauv Mechanical Spraying Mortar
HPMC yog cov dej-soluble derivative tau los ntawm cellulose. Nws muaj ntau yam tshwj xeeb xws li thickening, dej tuav thiab khi. Cov khoom no ua rau HPMC yog ib qho tseem ceeb ntxiv rau cov tshuaj txau tshuab. Thickening thiab dej tuav cov khoom yog qhov tseem ceeb hauv kev siv cov tshuaj txau cov tshuaj khib nyiab. Lawv xyuas kom meej tias lub mortar nyob ua ke, adheres rau saum npoo, thiab tsis khiav tawm.
HPMC kuj tseem siv tau los ua cov ntawv khi rau cov khoom siv tshuaj txau. Nws pab khi cov mortar hais ua ke, kom muaj zog adhesion rau saum npoo. Qhov no feature yog ib qho tseem ceeb heev vim nws ua kom cov tshuaj tsuag mortar muaj cov nyhuv ntev thiab tiv thaiv nws los ntawm tev tawm ntawm qhov chaw.
Qhov zoo ntawm HPMC rau cov neeg kho tshuab txau mortar
1. Txhim kho kev ua haujlwm
Ntxiv HPMC rau cov cuab yeej siv tshuaj txau tuaj yeem txhim kho nws txoj haujlwm. Nws txhim khu lub peev xwm ntawm cov mortar kom ua raws li qhov chaw, tiv thaiv nws qhov poob. Cov yam ntxwv no yog qhov tseem ceeb tshwj xeeb tshaj yog thaum ua haujlwm ntawm phab ntsa lossis qab nthab kom ntseeg tau tias cov mortar tsis tawm.
2. Ua kom cov dej khaws cia
HPMC muaj peev xwm tuav tau dej zoo heev, uas yog cov cuab yeej tseem ceeb ntawm cov khoom siv tshuaj tsuag. Txawm tias thaum lub sij hawm tsim kho, lub mortar tseem hydrated, ua rau cov khoom kawg muaj zog thiab ruaj khov.
3. Zoo adhesion
HPMC ua raws li kev sib khi, khi cov khoom ntawm cov khoom siv tshuaj txau ua ke kom zoo dua adhesion. Cov cuab yeej no ua kom cov mortar adheres rau saum npoo kom cov nyhuv ntev thiab tiv thaiv nws los ntawm tev tawm ntawm qhov chaw.
4. Txo kev tawg
Thaum ntxiv rau cov khoom siv tshuaj txau, HPMC txo qhov kev pheej hmoo ntawm kev tawg. Nws tsim ib daim ntawv cog lus muaj zog nyob rau hauv lub mortar, tso cai rau nws tiv taus siab thiab tsis paub loads. Qhov no ua rau cov khoom siv ruaj khov uas yuav tsis tawg lossis tev tom qab thov.
Kev siv HPMC hauv Mechanical Spraying Mortar
Txhawm rau kom tau txais txiaj ntsig zoo nrog cov tshuaj tsuag tshuaj txau, qhov tseeb thiab qhov zoo ntawm HPMC yuav tsum tau siv. HPMC yuav tsum tau muab sib xyaw ua ke nrog cov ntaub ntawv qhuav kom ntseeg tau tias muaj kev faib tawm. Tus nqi ntawm HPMC xav tau nyob ntawm seb yam xws li hom nto thiab qhov xav tau kev ua tau zoo ntawm cov tshuaj khib.
Mechanically siv mortars tau hloov pauv kev lag luam kev tsim kho, thiab qhov sib ntxiv ntawm HPMC coj ntau yam txiaj ntsig suav nrog kev txhim kho kev ua haujlwm, nce dej tuav, zoo dua adhesion thiab txo qhov tawg. HPMC tau dhau los ua ib qho tseem ceeb ntawm cov khoom siv tshuaj txau, thiab nws qhov kev cuam tshuam zoo tsis tuaj yeem kwv yees. Kev siv HPMC kom zoo nyob rau hauv cov khoom siv tshuaj tsuag mortars tuaj yeem ua kom cov khoom siv tau ntev, ua tau raws li cov qauv nruj nruj.
Post lub sij hawm: Aug-04-2023