Ukutshintsha komxholo we-latex powder kunempembelelo ecacileyo kumandla we-flexural we-polymer mortar. Xa umxholo we-latex powder yi-3%, i-6% kunye ne-10%, amandla okuguquguquka kwe-fly ash-metakaolin geopolymer mortar anganyuswa nge-1.8, 1.9 kunye ne-2.9 ngamaxesha. Ikhono le-fly ash-metakaolin geopolymer mortar ukuxhathisa i-deformation yanda ngokunyuka komxholo we-latex powder. Xa umxholo we-latex powder yi-3%, i-6% kunye ne-10%, ukuqina kwe-flexural ye-fly ash-metakaolin geopolymer yanda ngo-0.6, 1.5 kunye namaxesha e-2.2, ngokulandelanayo.
I-Latex powder iphucula ngokubonakalayo amandla okuguquguquka kunye nokudibanisa ukuqina kodaka lwesamente, ngaloo ndlela kuphuculwe ukuguquguquka kodaka lwesamente kunye nokwandisa amandla okuqina okudityaniswa kwendawo yojongano lwe-sement mortar-concrete kunye ne-cement mortar-EPS iinkqubo zebhodi.
Xa umlinganiselo we-poly-ash ngu-0.3-0.4, ulwandiso kwikhefu lodaka lwe-polymer-modified sement lutsiba ukusuka ngaphantsi kwe-0.5% ukuya phantse kuma-20%, ukuze izinto zidlule kwinguqu ukusuka ekuqineni ukuya ekuguquguqukeni, kunye nokwandisa inani. yepolymer inokufumana ukuguquguquka okugqwesileyo ngakumbi.
Ukwandisa inani le-latex powder kwi-mortar kunokuphucula ukuguquguquka. Xa umxholo wepolymer umalunga ne-15%, ukuguquguquka kodaka kutshintsha kakhulu. Xa umxholo uphezulu kunolo mxholo, ukuguquguquka komdaka kwanda kakhulu ngokunyuka komxholo we-latex powder.
Ngokusebenzisa ibhulorho yokuqhekeka kobuchule kunye novavanyo lokuguquguquka okuguquguqukayo, kwafunyaniswa ukuba ngokunyuka komxholo we-latex powder (ukusuka kwi-10% ukuya kwi-16%), ukuguquguquka kodaka kwanda ngokuthe ngcembe, kunye nekhono eliguqukayo lokuqhekeka kwebhuloho (7d) lenyuka ukusuka ku-0.19mm ukuya kutsho kwi-7. I-0.67 mm, ngelixa i-lateral deformation (28d) inyuke ukusuka kwi-2.5mm ukuya kwi-6.3mm. Ngelo xesha, kwafunyaniswa ukuba ukunyuka komxholo we-latex powder kunokunyusa kancinane uxinzelelo lwe-anti-seepage lwe-background yodaka, kwaye kunokunciphisa ukufunxa kwamanzi omdaka. Ngokunyuka komxholo we-latex powder, ukuxhathisa kwamanzi ixesha elide lodaka kwehla ngokuthe ngcembe. Xa umxholo we-latex powder ulungelelaniswa kwi-10% -16%, i-slurry eguqulelwe kwi-samente ayinakufumana kuphela ukuguquguquka okulungileyo, kodwa ibe nokuchasana kwamanzi ixesha elide.
Ixesha lokuposa: Mar-09-2023