I-calcium formate iyisengezo esingenawo umphumela wokugqwala ekuqiniseni insimbi. Ifomula yayo yama-molecule yi-C₂H₂CaO₄. Isheshisa kakhulu ukumuncwa kwe-triccalcium silicate kusimende, ngaleyo ndlela ithuthukise amandla okuqala esimende sesimende. Umthelela we-calcium formate emandleni esimende uncike kakhulu kokuqukethwe kwe-triccalcium silicate kusimende: uma okuqukethwe kwe-triccalcium silicate kuphansi, ngeke kunciphise amandla asemuva esimende, futhi futhi kunomphumela othile wokulwa nokuqandisa emazingeni okushisa aphansi.

Ufuna isikhuthazi samandla sasekuqaleni esingagqwali, esinobungani nokushisa okuphansi? I-Calcium formate igcwalisa amandla okuqala e-mortar (ngaphandle kokulahlekelwa amandla sekwephuzile!)—ilungele isikhathi sokwakha esiqinile. Sithumelele umlayezo ukuze ufunde ukuthi ithuthukisa kanjani amaphrojekthi akho!