Shin Ƙara ƙarin Siminti yana ƙara ƙarfi?

(Shin Ƙara ƙarin Siminti yana ƙara ƙarfi?)

Shin kara suminti yana kara karfi?

Amsar wannan tambayar ya dogara da adadin ruwan da ake amfani da shi da kuma irin simintin da kuke yi. A mafi yawan lokuta, amsar wannan tambaya ita ce a'a, ƙara yawan siminti baya ƙara ƙarfin siminti.

Haɗin kankare yana kunshe ne da tari, kamar yashi ko dutse, da siminti waɗanda aka haɗa su waje guda don yin manna. Haɗin da ya dace na waɗannan abubuwan yana samar da wani abu mai ƙarfi kuma mai ɗorewa wanda za'a iya amfani dashi don gina wani abu daga simintin siminti zuwa titina, titin mota da baranda.

Ƙirƙirar haɗaɗɗen kankare mai inganci da ɗorewa yana buƙatar daidaiton hankali tsakanin mahimman abubuwa biyar: karko, ƙarfi, yawa, iya aiki da bayyanar. Wadannan abubuwan suna tasiri ta hanyar halayen hydration da ke faruwa a lokacin da aka zubar da haɗuwa, da ruwa-zuwa-ciminti rabo da sauran muhimman halaye na ciminti kanta.

Siminti ya ƙunshi mahadi daban-daban, ciki har da calcium silicate hydrate. Wadannan hydrates suna ɗaure tare da aggregates don yin kankare mai wuya.

Ruwa shine babban abin da ke haifar da wannan tsarin samar da ruwa. Halin hydration yana cinye takamaiman adadin ruwa, amma yana barin bayan wasu ƙarin ruwa waɗanda zasu kasance a cikin sarari mara ƙarfi na microstructure (source).

Idan wannan ruwa mai yawa ya tsaya a cikin siminti, zai haifar da ramuka a cikin samfurin ƙarshe yayin da yake ƙafe. Wadannan ramukan suna raunana ƙarfin simintin kuma zai iya haifar da tsagewa akan lokaci. Wannan gaskiya ne musamman idan simintin yana fuskantar hawan daskarewa-narkewa. Wadannan tsaga na iya zama haɗari sosai kuma suna iya haifar da mummunar lalacewar tsarin.

(Shin Ƙara ƙarin Siminti yana ƙara ƙarfi?)