Ingabe i-calcium formate isheshisa ukumiswa kanye nokuqina kukakhonkolo ngokuqondile?

I-calcium Formateiwuketshezi oluwuketshezi olumhlophe noma oluphuzi kancane, olungasheshisa isivinini sokugeleza kukasimende futhi lugweme inkinga yejubane lokumisa elihamba kancane ebusika noma izinga lokushisa eliphansi nezimo ezimanzi, ukuze kuthuthukiswe amandla okuqala odaka. Namuhla ngizokutshela mayelanai-calcium formate ukusheshisa ukumiswa kanye nokuqina kokhonkolo yini eqondile?

I-calcium Formate isheshisa ukumiswa kanye nokuqina kokhonkolo ngokuthi:

1. Fushanisa isikhathi sokuqala sokusetha

2. Yenza ukusetha kancane kukasimende ngaphansi kwezimo eziphansi zokushisa

3. Khulisa izinga lokukhula kwamandla okuqala

4. Nciphisa isikhathi sokuvala kumojula ekukhiqizeni izingxenye ezakhiwe ngokhonkolo

5. Nciphisa isikhathi sokuthi ukhonkolo ufinyelele umthamo wawo womthwalo

Isibonelo, usimende wasePortland uvame ukusetshenziswa odakeni olomile, olubonakala ngamandla aphansi ekuqaleni kanye namandla aphezulu esigabeni sakamuva, futhi ukwengeza inani elifanele le-calcium formate kunenzuzo ukuthuthukisa amandla okuqala omkhiqizo.

Ohlelweni lukasimende lwasePortland,i-calcium formate inomphumela wokukhuthaza ukuhlangana namandla okuqala, ngoba ama-ion afomathi ku-HCOO- angakha ukufana kwe-AHt ne-AFm (C₃A·I-3Ca(HCOO)₂·30H₂OC₃A·I-Ca(HCOO)·10H₂0, njll.), okunciphisa kakhulu isikhathi sokusetha sikasimende.

Ngaphezu kwalokho,i-calcium formateingakhuthaza ukugeleza kwe-calcium silicate, ngoba ama-HCOO- ion asakazwa ngokushesha kune-Ca2+ ion, futhi angangena kungqimba lwe-hydration lwe-C3S ne-C2S, asheshise ukuna kwe-Ca(OH)₂kanye nokubola kwe-calcium silicate. Ama-HCOO-ion angaphinde abophe ama-athomu e-silicon ukuze asabele nge-OH- ngokusebenzisa isenzo samakhemikhali, ukuze axhumanise amaqembu e-silicate aseduze, akhuthaze ukwakheka kwejeli ye-CSH, futhi athuthukise amandla aqinile odaka lukasimende.