Ta yaya polymer foda foda zai shafi sassaucin turmi?

Admixture yana da tasiri mai kyau akan inganta aikin ginin busassun busassun turmi. Redispersible latex foda ana yin ta ta hanyar bushewa da bushewar polymer emulsion na musamman. A busassun polymer foda ne wasu 80 ~ 100mm mai siffar zobe barbashi tattara tare. Wadannan barbashi suna da sauƙin narkewa a cikin ruwa, suna samar da barga mai tarwatsewa dan kadan ya fi girma fiye da barbashi na emulsion na asali, kuma suna samar da fim bayan bushewa 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. Redispersible latex foda ga turmi iya inganta tasiri juriya, dorewa, sa juriya, gina saukaka, bond ƙarfi da cohesion, weather juriya, daskare-narke juriya, ruwa juriya, flexural ƙarfi da juriya na turmi nadawa ƙarfi. Muddin kayan da aka gina da siminti mai ɗauke da foda na latex yana cikin hulɗa da ruwa, yanayin hydration zai fara, kuma maganin calcium hydroxide zai zama cikakke kuma zai yi crystallize. A lokaci guda, an kafa lu'ulu'u na ettringite da gels silicate hydrate gels. Ana ajiye ɓangarorin ƙaƙƙarfan a kan gel da barbashi siminti mara ruwa. Yayin da yanayin hydration ya ci gaba, samfuran hydration suna ƙaruwa, kuma ƙwayoyin polymer a hankali suna taruwa a cikin pores na capillary, suna samar da wani yanki mai tarin yawa akan saman gel da barbashin siminti mara ruwa. Haɗaɗɗen ƙwayoyin polymer a hankali suna cika pores.

Redispersible latex foda zai iya inganta lankwasawa ƙarfi da bonding 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 zai huta ba tare da karyewa ba a karkashin aikin karfi na waje. Bugu da kari, turmi yana samar da kwarangwal mai tsauri bayan an shayar da siminti, kuma polymer din da ke cikin kwarangwal yana da aikin gabobi masu motsi, kama da kyallen jikin dan adam. Za a iya kwatanta membrane da aka kafa ta hanyar polymer da haɗin gwiwa da haɗin gwiwa, don haka tabbatar da elasticity da sassaucin kwarangwal.

A cikin tsarin simintin ciminti da aka gyare-gyaren polymer, ci gaba da cikakken fim ɗin polymer yana haɗuwa tare da simintin siminti da ɓangarorin yashi, yana yin duka turmi mafi kyau, 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 mahaɗar polymer-turmi, warkar da tsagewar ƙura, da haɓaka ƙarfi da haɗin gwiwa na turmi. Kasancewar yankuna masu sassaucin ra'ayi da ƙwanƙwasa na polymer yana ƙara haɓakawa da haɓakar turmi, yana ba da haɗin kai da kaddarorin ƙarfi ga kwarangwal. Lokacin da aka yi amfani da karfi na waje, tsarin ci gaban microcrack yana jinkirta har sai an kai ga matsananciyar damuwa saboda karuwar haɓaka da haɓaka. Yankunan polymer ɗin da aka haɗa su ma suna aiki a matsayin shinge ga microcracks don haɗuwa zuwa fashe masu shiga. Sabili da haka, foda na polymer wanda za'a iya tarwatsawa yana ƙara yawan damuwa da rashin cin nasara na kayan aiki.