Kasarmu “babban mai amfani da gilashi ne” mai albarkatu. Tare da saurin ci gaban tattalin arziki, yawan amfani da gilashi yana karuwa kowace rana, kuma zubar da gilashin sharar gida ya zama matsala mai wahala a hankali. Babban abin da ke cikin gilashin shine silica mai aiki, don haka bayan an niƙa shi ya zama foda, yana iya samun aikin pozzolanic kuma ana iya amfani da shi azaman cakuda don shirya siminti. Wannan ba wai kawai zai iya magance matsalar zubar da gilashin sharar gida ba, har ma yana haɓaka haɓaka kayan gini masu kore da muhalli.Injin HCMmasana'antar niƙa ce. Injin niƙa da muke samarwa kayan aiki ne da ake amfani da su wajen niƙa fodar gilashi. A yau zan gabatar muku da rawar da fodar gilashi ke takawa a kan siminti.

Ta hanyar nazarin gwajin ƙarfin matsi na siminti da aka haɗa da foda gilashi da kuma sakamakon binciken ƙananan ƙwayoyin cuta na manna siminti, za a iya kammala da cewa duk da cewa CaO na foda gilashi zai iya amsawa da ruwa, yana da rauni sosai. Saboda haka, ana iya la'akari da cewa foda gilashi ba shi da taurin hydraulic. Misali, lokacin da yawan haɗa foda gilashi ya kai kashi 10%, silica mai aiki, alumina da calcium hydroxide a cikin foda gilashi suna amsawa don samar da calcium silicate mai ƙarancin alkaline. Silica mai aiki kuma yana iya amsawa tare da calcium silicate mai yawan alkaline. Calcium silicate hydrate yana amsawa don samar da calcium silicate hydrate mai ƙarancin alkaline. Yayin da yake rage yawan sinadarin calcium hydroxide, ana samar da wani ɓangare na calcium silicate mai hydrate, wanda ke inganta yawan da rashin ruwa na slurry mai tauri; yana amsawa da sinadarin sinadarin calcium hydroxide (Ca(OH)2) don samar da ruwa Calcium silicate mai ruwa yana rage yawan sinadarin Ca(OH)2 a cikin siminti, yana ƙara yawan sinadarin calcium silicate mai ruwa, kuma yana inganta ƙarfin siminti. Lokacin da sinadarin foda na gilashi ya kai kashi 20%, saboda yawan sinadarin siminti yana raguwa, sinadarin hydrates da sinadarin siminti ke samarwa suma suna raguwa, amma sinadarin gilashin yana amsawa da sinadarin siminti don samar da sinadarin calcium silicate mai ruwa kaɗan. Lokacin da adadin sinadarin gilashin ya kai kashi 20%, ƙarfin har yanzu yana kama da siminti mai ma'auni. Lokacin da adadin sinadarin gilashin ya ci gaba da ƙaruwa kuma sinadarin siminti ya ragu a hankali, adadin sinadarin hydration zai ragu, kuma sinadarin gilashin zai yi aiki da sinadarin siminti. Ƙarin sinadarin hydrate bai isa ya rama raguwar kayayyakin hydration da raguwar sinadarin siminti ke haifarwa ba. Saboda haka, ƙarfin yana raguwa da raguwa. An kuma gano cewa lokacin da adadin sinadarin gilashin ya yi yawa, fasa za su bayyana.

Wannan kuwa saboda yayin da adadin siminti ke raguwa, buƙatar silica mai aiki da ke shiga cikin amsawar ruwa shima yana raguwa. Sauran silica mai aiki yana amsawa da abubuwan alkaline da ke cikin foda na gilashi, wanda ke haifar da faɗaɗa cikin simintin. Manna siminti mai tauri shi ma zai fashe kuma ya haifar da manyan tsagewa, kuma ƙarfin simintin zai ragu.

Tasirin foda gilashi akan siminti:

(1) Ƙarfin matsi na tsawon kwanaki 28 na siminti da aka shirya da foda gilashi mai haske mara launi da foda gilashi kore da aka haɗa da kashi 10% da 15% na siminti maimakon siminti ya fi na siminti mai ma'auni; idan adadin ya kai kashi 20%, ƙarfin ya yi daidai da na siminti mai ma'auni. Idan aka kwatanta da siminti; idan adadin ya kai kashi 30% ko sama da haka, ƙarfin matsi na siminti yana raguwa sosai.

(2) Idan ba a ƙara foda na gilashi ba, sinadarin calcium hydroxide yana yin lu'ulu'u sosai kuma yana da girma. Yayin da adadin foda na gilashi ke ƙaruwa, yawan sinadarin calcium hydroxide yana raguwa a hankali kuma lu'ulu'u yana ta ƙara muni.

(3) Ƙara gilashin foda mai launuka daban-daban ba shi da tasiri sosai ga ƙarfin siminti.

(4) Ana amfani da foda na gilashi don shirya siminti kuma yana da tasirin muhalli mai kyau.

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