Ibisobanuro:
Inganda zubaka zifite uruhare runini mugushiraho isi igezweho, muri yo sima niyo nyubako yibanze. Haraheze imyaka, abashakashatsi naba injeniyeri bakomeje gushakisha uburyo bwo kuzamura ubwiza n’imikorere ya sima. Inzira imwe itanga ikizere harimo kongeramo inyongeramusaruro, muri calcium ya calcium yabaye umukinnyi uzwi cyane.
kumenyekanisha:
Isima nigice cyingenzi cyubwubatsi kandi isaba iterambere rihoraho kugirango uhuze ibikenerwa ninganda. Kwiyongera kwinyongera byagaragaye ko ari ingamba zifatika zo kunoza ibintu bitandukanye bya sima. Kalisiyumu ikora, ikomatanyirizo ryakozwe na reaction ya calcium oxyde na aside aside, yakwegereye ibitekerezo kubushobozi bwayo bwo kuzamura imiterere ya sima. Iyi ngingo igamije gusobanura uburyo calcium ikora bigira ingaruka nziza kumiterere ya sima no mumikorere.
Kalisiyumu ikora imiti:
Mbere yo gucukumbura ingaruka za calcium ikora kuri sima, ni ngombwa kumva chimie yiyi nyongeramusaruro. Kalisiyumu ikora ni ifu yera ya kristalline hamwe na formula ya chimique Ca (HCOO) 2. Irashobora gushonga amazi kandi ifite imiterere ya hygroscopique. Ihuriro ridasanzwe rya calcium na formate ion itanga ibice byimiterere yihariye, bigatuma bikwiranye nibikorwa bitandukanye, harimo no kunoza sima.
Urwego:
Kwinjiza calcium bigize imvange ya sima itangiza uburyo bwinshi bugira uruhare mubikorwa byiza. Uburyo bumwe bukomeye burimo kwihuta kwa sima. Kalisiyumu ikora nka catalizator, iteza imbere gukora hydrat nka calcium silicate hydrate (CSH) na ettringite. Uku kwihuta kuvamo ibihe byihuse kandi byongera imbaraga ziterambere.
Byongeye kandi, calcium ikora nka site ya nucleation yimvura ya hydrate, bigira ingaruka kuri microstructure ya matrise ya sima. Ihinduka rivamo gukwirakwiza no gukwirakwiza hydrate imwe, bifasha kunoza igihe kirekire no kugabanya ubwikorezi.
Byongeye kandi, calcium ikora igira uruhare mubitekerezo bya pozzolanic, aho ifata hamwe na hydroxide ya calcium kugirango ikore gel gel ya CSH. Iyi myitwarire ntabwo igira uruhare mu iterambere gusa ahubwo inagabanya ibyago byo gutinda gushingwa kwa ettringite (DEF), ibintu bishobora guhungabanya igihe kirekire cya sima.
Gutezimbere ubuziranenge bwa sima:
Iterambere ryimbaraga za mbere:
Ubushobozi bwa calcium ikora kugirango yihutishe hydrata ya sima isobanura muburyo bugaragara mugutezimbere imbaraga hakiri kare. Ibi nibyingenzi mubikorwa byubwubatsi aho imbaraga zigomba kuboneka vuba. Igihe cyihuse cyo gushiraho cyatejwe imbere na calcium ya calcium irashobora kuvamo gukuraho byihuse no kubaka byihuse.
Kongera igihe kirekire:
Kalisiyumu yongeweho kugirango ihindure microstructure ya sima, bivamo ibintu biramba. Kwiyongera kwinshi no gukwirakwiza hydratate bigira uruhare runini mu kurwanya ibitero by’imiti, kuzunguruka gukonje, no kwambara. Kubwibyo, imiterere ya sima ivurwa hamwe na calcium ikora ubuzima burebure.
Kugabanya uburyo bworoshye:
Kimwe mu bintu by'ingenzi bigira ingaruka ku burebure bwa beto ni uburyo bworoshye. Kalisiyumu igabanya ubwikorezi igira ingaruka kumiterere ya matima ya sima. Gukora matrix yuzuye ifite imyenge myiza igabanya kwinjiza amazi nibintu bitera, bityo bigatuma beto irwanya kwangirika.
Kugabanya ingaruka za Alkali Silica (ASR):
Ubushakashatsi bwerekanye ko calcium ikora ishobora kugabanya ibyago byo kwitwara alkali-silika, inzira mbi ishobora gutera kubyimba gel no kubyimba muri beto. Muguhindura imiterere ya pore hamwe nubumara bwa sima ya sima, formati ya calcium ifasha kugabanya ubushobozi bwangirika bwa ASR.
Kongera imikorere:
Kunoza imashini:
Ingaruka ya calcium ikora kuri hydrata ya sima igira ingaruka nziza kumikorere ya beto nshya. Kwihutisha igihe cyateganijwe hamwe no kongera hydration kinetics bifasha kunoza ibiranga urujya n'uruza, koroshya gushyira hamwe no guhuza beto. Ibi nibyiza cyane cyane aho koroshya imyanya ari ngombwa.
kugenzura ubushyuhe:
Gukoresha calcium ikora muri sima bifasha kugabanya ingaruka zubushyuhe bukabije mugihe cyo gukira. Kwihutisha ibihe byashizweho bivamo calcium ikora birashobora kwihutisha iterambere ryimbaraga no kugabanya intege nke za beto kubibazo biterwa nubushyuhe nko guturika.
Ibitekerezo birambye:
Kalisiyumu ifite imitungo yujuje intego zirambye zinganda zubaka. Imyitwarire ya pozzolanic yorohereza ikoreshwa ryimyanda, kandi ingaruka zayo kumara igihe kirekire no kuramba bigira uruhare mukugabanya muri rusange ingaruka zibidukikije zijyanye no gusimbuza no gusana amazu ashaje.
Inzitizi n'ibitekerezo:
Mugihe inyungu zo kwinjiza calcium zigizwe na sima zirasobanutse, hagomba gutekerezwa imbogamizi nimbogamizi. Ibi birashobora kubamo ibiciro byiyongereye, imikoranire ishobora kuvangwa nizindi mvange, hamwe no gukenera kugenzura neza dosiye kugirango wirinde ingaruka mbi. Byongeye kandi, imikorere miremire nigihe kirekire cya calcium ikora beto ivurwa mugihe cyibidukikije byihariye itanga ubundi bushakashatsi nubushakashatsi bwakozwe.
mu gusoza:
Kwinjiza calcium ikora muri sima nuburyo butanga ikizere cyo kuzamura ireme nimikorere yibi bikoresho byingenzi byubaka. Binyuze muburyo butandukanye bwibikorwa, calcium ikora yihutisha hydratiya, itezimbere microstructure kandi igira uruhare mubintu bitandukanye byifuzwa, harimo iterambere ryambere ryambere, kongera igihe kirekire no kugabanya ubwikorezi. Mugihe inganda zubwubatsi zikomeje gutera imbere, uruhare rwinyongera nka calcium ikora mugutezimbere sima irashobora kuba ingenzi. Ubundi bushakashatsi nibikorwa bifatika nta gushidikanya bizarushaho kwerekana ubushobozi bwuzuye nogukoresha neza calcium ikora muburyo bwa sima, bigatanga inzira yuburyo bukomeye kandi burambye.
Igihe cyo kohereza: Ukuboza-05-2023