Redispersible looj cov khoom siv yog ib feem ntawm cov organic cov organic, uas tuaj yeem rov qab ua kom cov dej khov rau hauv dej los tsim cov dej. Ntxiv cov recispersible looj dej cov hmoov ua tau zoo zuj zus, yoog raws li kev sib xyaw ua ke ntawm cov cement tsis zoo. Cov tshuaj ntsuab zoo pauv qhov sib xws thiab kev plam ntawm cov kab ke hauv lub xeev ntub dej, thiab cov cohesion tau txhim kho los ntawm kev ntxiv cov hmoov yas. Tom qab ziab, nws muab ib txheej du thiab ntom ntom nti txheej nrog cov quab yuam sib xyaw, thiab txhim kho cov nyhuv interface ntawm cov xuab zeb, gravel thiab pores. , estriched rau hauv zaj duab xis nyob rau ntawm lub interface, uas ua rau cov khoom siv hluav taws xob yooj yim, thiab muaj qhov kub thiab txias thiab kub thiab txias thiab txias
Kev tsim cov yeeb yaj kiab txuas ntxiv yog qhov tseem ceeb tshaj plaws rau kev ua tau zoo ntawm polymer-hloov Cah Mas tuag. Thaum lub sijhawm teeb tsa thiab cov txheej txheem tawv ntawm cov ntxhib muab tshuaj txhuam, ntau cov kab noj hniav yuav tsim tawm sab hauv, uas ua rau cov tsis muaj zog ntawm cov cement muab tshuaj txhuam. Tom qab redispersible looj hmoov yog ntxiv, cov hmoov looj tawm tam sim ntawd thaum nws ntsib dej, thiab sib sau ua ke hauv thaj chaw (uas yog, hauv kab noj hniav). Raws li cov Maas muab tshuaj txhuam thiab tawv tawv, kev txav ntawm cov polymer hais yog nce qib ntawm dej thiab huab cua ua kom tiav. Thaum cov polymer hais los sib chwv nrog ib leeg, lub network ntawm cov dej ntws dim ntawm kab noj hniav ib ncig ntawm kab noj hniav, ntxiv dag zog rau cov pob hluav taws xob tsis muaj zog. Nyob rau lub sijhawm no, cov yeeb yaj kiab polymer tsis tuaj yeem tsuas yog ua lub luag haujlwm hydropobic, yog li kuj tsis thaiv cov capillary, yog li cov khoom muaj zoo hydrophobicity thiab huab cua permeability.
Cug ceg nyem uas tsis muaj polymer yog heev thiaj li txuas ua ke. Ntawm qhov tsis tooj, cov polymer hloov pauv cem zoo ua rau muaj kev sib sau tag nrho, yog li tau txais cov khoom ua ke thiab huab cua tsis zoo sib deev. Nyob rau hauv lub latex hmoov transfified xis cream, cov hmoov nplej ntawm cov cement ntawm lub porosity hloov pauv ntawm lub porosity ntawm lub porosity ntawm lub porosity ntawm lub porosity uas tsis hloov. Tom qab cov hmoov yas looj tau tsim mus rau hauv zaj duab xis, nws tuaj yeem thaiv cov qauv ntawm cov cement, thiab cov ntawv sau ua ke tiv thaiv cov kua txiv hmab txiv ntoo rov qab hloov kho , thiab muaj peev xwm tiv thaiv kev yaig ntawm kev phom sij yog txhim kho. Nws muaj cov txiaj ntsig zoo ntawm kev txhim kho lub durability ntawm cug.
Lub Sijhawm Post: Mar-14-2023