Kuwedzera 2% kusvika 3% yeredispersible latex poda inogona kuvandudza zvakanyanya kupfekedzwa kwekusagadzika kwedhaka rekuzvimisa, iro rinogona kusangana ne28d kupfeka kuramba ≤ 0.59 yakatemwa muyero.Iyo polymer inopararira mudhaka uye yobva yagadzira firimu, inozadza ma pores e slurry uye inopindirana ne simenti hydration zvigadzirwa kuti iite matatu-dimensional network dhizaini, izvo zvinoita kuti dhaka dhizaini rinyanye kuwirirana.Iyo inochinjika yepolymer firimu inobatsira kudzoreredza kushushikana kwemukati medhaka, inoderedza kushushikana kwekushushikana, uye inoderedza chizvarwa che micro-cracks, uye iyi polymer firimu haingoite basa re hydrophobic asiwo haivharidzi capillary, kuitira kuti zvinyorwa. ine yakanaka hydrophobicity uye kufema.Panguva imwecheteyo, nekuda kwekuvharwa kwechisimbiso kunokonzerwa nefirimu repolymer, kusamira kwechinhu kune hunyoro, makemikari kuramba, kutonhora-kunyungudika, uye kusimba kunovandudzwa zvakanyanya, uye simba rekukotama, kutsemuka, simba rekunamatira, uye elasticity ye. dhaka rinovandudzwa.Uye kuoma, uye pakupedzisira kunogona kudzivirira shrinkage kupaza kwedhaka.
Ongororo dzakaona kuti kuyerera kwekutanga kwegobvu-layer gypsum-based self-leveling mortar inowedzera kutanga uye inoderera nekuwedzera kwehuwandu hwe latex powder.Chikonzero ndechekuti latex powder ine imwe viscosity mumvura yakanyungudutswa.Kukwanisa kumiswa kwe slurry kune filler inovandudzwa, iyo inobatsira pakuyerera kwe slurry;apo huwandu hwe latex powder hunoramba huchiwedzera, kuwedzera kwe viscosity ye slurry kunotungamirira kukuwedzera kwehutachiwana hwe slurry, uye fluidity inoratidza kuderera.Huwandu hwe latex powder hunenge husina mhedzisiro pa 20-min fluidity yedhaka.Sezvo organic binder, latex poda inoenderana nekubuda kwemvura mune slurry, uye iyo firimu inoumba chisungo chesimba, uye iyo gypsum base inozvimiririra munzvimbo yakaoma.Mvura iri mumatope inoputika, uye latex powder inogona kuumba firimu inopfuurira, iyo ine simba rakanaka rakabatana.Iyo yakaoma simba yegypsum-based self-leveling mortar inowedzera nekuwedzera kwe latex powder content.Mune gypsum-based self-leveling mortar isina latex poda, kune nhamba huru yetsvimbo-yakaita uye columnar dihydrate gypsum crystals uye irregular filler dihydrate gypsum crystals uye pakati pe dihydrate gypsum crystals uye fillers.Muunganidze pamwe chete kuti gypsum-based self-leveling dhaka ibudise simba, uye gypsum-based self-leveling dhaka yakasanganiswa ne redispersible latex poda, iyo latex poda inoumba filamentary yekubatanidza mudhaka regypsum-based self-leveling, uye dihydrate. gypsum makristasi uye mafirita, makristasi Bhiriji regirosi rinoumbwa pakati pekristaro uye dihydrate gypsum crystal, uye organic firimu inoumbwa pane dihydrate gypsum crystal kuputira uye kubatanidza zvikamu zvinopindirana pakati peiyo dihydrate gypsum makristasi, nekudaro ichiwedzera kubatana uye kubatana. yegypsum-based self-leveling mortar uye kuvandudza kusimba kwegypsum-based self-leveling mortar Iyo latex powder ine mafirimu ekugadzira zvinhu mumatope, iyo inogona kuvandudza kuwirirana uye kusungirirwa kwesimba revhu rakaoma.Kuumbwa kwekubatana kunoshanda pakati pemafiritsi kunonatsiridza kubatana pakati pe dihydrate gypsum crystals uye mafirita, nekudaro kuvandudza kusimba kwechisungo chegypsum-based self-leveling mortar macroscopically.
Nguva yekutumira: Kubvumbi-10-2023