Ukongeza i-2% ukuya kwi-3% ye-latex powder ehlaziywayo inokuphucula kakhulu ukunyanzeliswa kokugqoka kwe-self-leveling mortar, enokuthi ihlangabezane ne-28d yokumelana nokugqoka ≤ 0.59 echazwe kumgangatho.I-polymer ichithakala kwi-mortar kwaye ifake ifilimu, igcwalise ii-pores ze-slurry kwaye idibanise neemveliso ze-samente ze-hydration ukwenza isakhiwo sothungelwano esine-dimensional-dimensional network, eyenza isakhiwo sodaka sidibanise ngakumbi.Ifilimu ye-polymer eguquguqukayo inceda ukukhulula uxinzelelo lwangaphakathi lodaka, ukunciphisa uxinzelelo loxinzelelo, kunye nokunciphisa isizukulwana se-micro-cracks, kwaye le filimu ye-polymer ayidlali nje indima ye-hydrophobic kodwa ayivimbeli i-capillary, ukwenzela ukuba izinto eziphathekayo. ine-hydrophobicity elungileyo kunye nokuphefumla.Kwangaxeshanye, ngenxa yesiphumo sokutywinwa okubangelwa yifilimu yepolymer, ukunganyameki kwesixhobo sokufuma, ukuxhathisa imichiza, ukuchasana nokunyibilika komkhenkce, kunye nokuqina kuphuculwe kakhulu, kwaye ukomelela kokugoba, ukumelana nokuqhekeka, ukomelela kokuncamathela, kunye nokuqina udaka luyaphuculwa.Kwaye ukuqina, kwaye ekugqibeleni kunokunqanda ukuqhekeka kodaka.
Iimvavanyo ziye zafumanisa ukuba i-fluidity yokuqala ye-gypsum-based self-leveling mortar inyuka kuqala kwaye iyancipha ngokunyuka kwe-latex powder.Isizathu kukuba i-latex powder ine-viscosity ethile emanzini achithwayo.Ikhono lokumiswa kwe-slurry kwi-filler liphuculwe, elinenzuzo ekuhambeni kwe-slurry;xa inani le-latex powder liqhubeka likhula, ukunyuka kwe-viscosity ye-slurry kukhokelela ekunyuseni kwe-viscosity ye-slurry, kwaye i-fluidity ibonisa ukuhla.Isixa se-latex powder siphantse singabi nampembelelo kwi-20-min fluidity yomdaka.Njenge-binder yezinto eziphilayo, i-latex powder ixhomekeke ekuphupheni kwamanzi kwi-slurry, kwaye ifilimu yenza amandla ebhondi, kwaye isiseko se-gypsum sixhomekeke kwimeko eyomileyo.Amanzi kumdaka aphuphuma, kwaye i-latex powder inokwenza ifilimu eqhubekayo, enegunya elihle lokubambisana.Amandla omileyo we-gypsum-based self-leveling mortar ayanda ngokunyuka kwe-latex powder content.Kwi-gypsum-based self-leveling mortar ngaphandle kwe-latex powder, kukho inani elikhulu leekristale ze-gypsum ezimile okwentonga kunye ne-columnar dihydrate dihydrate kunye ne-regular filler dihydrate gypsum crystals kunye naphakathi kwe-dihydrate gypsum crystals kunye nezihlungi.Gxuma kunye ukuze wenze udaka lokuzilinganisa olusekwe kwigypsum luvelise amandla, kunye nodaka lokuzilinganisa olusekwe kwigypsum oluxutywe nomgubo welatex odispersible, umgubo welatex wenza udibaniso lwefilamentary kudaka lokuzilinganisa olusekwe kwigypsum, kunye nedihydrate. Iikristale zegypsum kunye nezigcwalisi, iikristale Ibhulorho ephilayo yenziwa phakathi kwekristale kunye ne-dihydrate gypsum crystal, kwaye ifilimu ephilayo yenziwa kwikristale ye-dihydrate gypsum ukusonga kunye nokudibanisa iindawo ezidibeneyo phakathi kweekristale ze-dihydrate gypsum, ngaloo ndlela ukwandisa ubumbano kunye nokudibanisa. ye-gypsum-based self-leveling mortar kunye nokuphucula Amandla e-gypsum-based self-leveling mortar I-latex powder ineempawu zokwenza ifilimu kwi-mortar, enokuphucula ukubambisana kunye namandla okudibanisa udaka olomileyo.Ukuqulunqwa kokubambisana okusebenzayo phakathi kweefayili kuphucula ukudibanisa phakathi kwe-dihydrate gypsum crystals kunye ne-fillers, ngaloo ndlela kuphuculwe amandla ebhondi ye-gypsum-based self-leveling mortar macroscopically.
Ixesha lokuposa: Apr-10-2023