A admixture yana da kyau sakamako a kan inganta yi na gina bushe-mixed turmi, da kuma redispersible roba foda ne Ya sanya na musamman polymer emulsion bayan fesa bushewa.Busasshen foda na roba shine wasu barbashi mai siffar zobe na 80 ~ 100mm sun taru.Wadannan barbashi ne mai narkewa a cikin ruwa da kuma samar da wani barga watsawa dan kadan ya fi girma fiye da na asali emulsion barbashi, wanda samar da wani fim bayan dehydration da bushewa.
Matakan gyare-gyare daban-daban suna sa foda na latex wanda za'a iya rarrabawa yana da kaddarorin daban-daban kamar juriya na ruwa, juriya na alkali, juriya na yanayi da sassauci.Rubber foda da aka yi amfani da shi a cikin turmi na iya inganta juriya mai tasiri, ƙarfin hali, juriya na lalacewa, sauƙi na gini, ƙarfin haɗin gwiwa da haɗin kai, juriya na yanayi, juriya-narke, rashin ruwa, ƙarfin lanƙwasa da ƙarfin sassauƙa na turmi.Muddin kayan da aka yi da siminti tare da foda na latex yana cikin hulɗa da ruwa, aikin hydration zai fara, kuma maganin calcium hydroxide zai zama cikakke kuma za a sami lu'ulu'u.A lokaci guda, za a samar da lu'ulu'u na ettringite da gels silicate hydrate gels.A m barbashi ana ajiye a kan gel da unhydrated siminti barbashi.Yayin da yanayin hydration ya ci gaba, samfuran hydration suna ƙaruwa, kuma ƙwayoyin polymer suna taruwa a hankali a cikin ramukan capillary, suna samar da wani nau'i mai ɗimbin yawa akan saman gel ɗin kuma akan barbashi na siminti mara ruwa.Haɗaɗɗen ƙwayoyin polymer a hankali suna cika pores.
Redispersible latex foda zai iya inganta lankwasawa ƙarfi da kuma mannewa ƙarfi na turmi domin zai iya samar da wani polymer film a saman da turmi barbashi.Akwai pores a saman fim ɗin, kuma saman ramukan yana cike da turmi, wanda ya rage yawan damuwa.Kuma a karkashin aikin karfi na waje, zai haifar da shakatawa ba tare da karya ba.Bugu da kari, turmi yana samar da kwarangwal mai tsauri bayan an shayar da siminti, kuma polymer din dake cikin kwarangwal yana da aikin hadin gwiwa mai motsi, wanda yayi kama da nama na jikin dan adam.Ana iya kwatanta membrane da aka kafa ta hanyar polymer da haɗin gwiwa da haɗin gwiwa, don tabbatar da elasticity da sassaucin kwarangwal.tauri.
A cikin tsarin turmi na ciminti da aka gyare-gyaren polymer, ci gaba da cikakken fim ɗin polymer yana haɗuwa tare da simintin siminti da ɓangarorin yashi, yana yin duk turmi mafi kyau kuma mai yawa, kuma a lokaci guda yana yin duk hanyar sadarwa ta roba ta hanyar cika capillaries da cavities.Sabili da haka, fim ɗin polymer na iya tasiri yadda ya kamata ya watsa matsa lamba da tashin hankali na roba.Fim ɗin polymer na iya haɗa ɓarnawar raguwa a cikin mahallin polymer-turmi, ya warkar da ɓarna, da inganta hatimi da haɗin kai na turmi.Kasancewar yankuna masu sassaucin ra'ayi da ƙwanƙwasa na polymer suna haɓaka haɓakawa da haɓakar turmi, suna ba da haɗin kai da ɗabi'a mai ƙarfi ga kwarangwal.Lokacin da aka yi amfani da karfi na waje, tsarin yaduwa na microcrack yana jinkirta saboda ingantacciyar sassauci da elasticity har sai an kai ga matsananciyar damuwa.Yankunan polymer ɗin da aka haɗa su kuma suna aiki azaman shinge ga haɗuwar ƙananan ƙira zuwa ratsawa.Sabili da haka, foda na polymer wanda za'a iya tarwatsawa yana inganta haɓakar rashin ƙarfi da rashin ƙarfi na kayan aiki.
Lokacin aikawa: Fabrairu-20-2023