Cov tshuaj khib siv dav yog cov tshuaj khib plastering, tshuaj khib uas tiv taus tawg thiab tshuaj khib masonry. Lawv qhov sib txawv yog raws li nram no:
Cov tshuaj nplaum uas tiv taus tawg:
Nws yog ib lub mortar ua los ntawm cov neeg sawv cev tiv thaiv kev tawg ua los ntawm polymer lotion thiab admixture, cement thiab xuab zeb hauv qee qhov sib piv, uas tuaj yeem ua tau raws li qee qhov deformation thiab tswj tsis muaj kev tawg.
Cov tshuaj mortar uas tiv taus qhov tawg yog cov khoom tiav lawm, uas siv tau los ntawm kev ntxiv dej thiab sib tov ncaj qha. Cov khoom siv tshuaj mortar tiv thaiv qhov tawg tiav lawm yog xuab zeb zoo, cement thiab tus neeg sawv cev tiv thaiv qhov tawg. Cov khoom siv tseem ceeb ntawm tus neeg sawv cev tiv thaiv qhov tawg yog ib hom silica fume, uas tuaj yeem sau cov qhov hws ntawm cov khoom cement, tsim cov gels nrog cov khoom hydration, thiab cuam tshuam nrog alkaline magnesium oxide los tsim cov gels.
Cov tshuaj pleev plastering:
Cov tshuaj mortar uas siv rau ntawm qhov chaw ntawm cov tsev thiab cov khoom sib xyaw thiab qhov chaw ntawm cov ntaub ntawv hauv paus, uas tuaj yeem tiv thaiv txoj kev hauv paus thiab ua tau raws li qhov yuav tsum tau siv, tuaj yeem hu ua plastering mortar (tseem hu ua plastering mortar).
Cov khoom siv mortar:
Ib yam khoom siv ntxiv rau kev sib sau ua ke ntawm cov khoom siv gel (feem ntau yog cement thiab lime) thiab cov pob zeb me me (feem ntau yog xuab zeb zoo ntuj).
Kev khaws dej ntawm cov pob zeb mortar txhais tau hais tias cov pob zeb mortar muaj peev xwm khaws dej. Cov pob zeb mortar uas khaws dej tsis zoo yuav yooj yim los ntshav thiab sib cais thaum thauj thiab khaws cia, uas yog, dej ntab saum toj thiab xuab zeb thiab cement poob rau hauv qab. Nws yuav tsum tau sib tov dua ua ntej siv.
Txhua hom kev siv mortar uas yuav tsum tau siv los ua mortar muaj qee yam kev nqus dej. Yog tias cov mortar tsis khaws dej zoo, thaum lub sijhawm txheej mortar, tsuav yog cov mortar sib xyaw ua ke sib cuag nrog lub thaiv lossis txoj hauv kev, cov dej yuav raug nqus los ntawm cov mortar sib xyaw ua ke. Tib lub sijhawm, cov dej yuav ua pa tawm ntawm qhov chaw ntawm mortar uas tig mus rau huab cua, ua rau cov dej tsis txaus rau mortar vim yog poob dej, cuam tshuam rau kev ntxiv dej ntawm cement, cuam tshuam rau kev txhim kho lub zog ntawm mortar, ua rau lub zog. Tshwj xeeb, lub zog sib txuas ntawm lub cev mortar thiab lub hauv paus qis, ua rau mortar tawg thiab poob tawm. Rau cov mortar uas khaws dej zoo, cov dej cement txaus, lub zog tuaj yeem txhim kho ib txwm, thiab nws tuaj yeem sib txuas zoo nrog txoj hauv kev hauv paus.
Yog li ntawd, kev ua kom cov dej khaws cia ntawm cov mortar tsis yog tsuas yog pab txhawb rau kev tsim kho xwb, tab sis kuj ua rau lub zog ntxiv.
Lub sijhawm tshaj tawm: Tsib Hlis-27-2022