Calcium formate ndi chowonjezera chomwe sichiwononga mphamvu ya chitsulo. Fomula yake ya molekyulu ndi C₂H₂CaO₄. Imathandizira kwambiri kusungunuka kwa tricalcium silicate mu simenti, motero imawonjezera mphamvu yoyambirira ya simenti. Mphamvu ya calcium formate pa mphamvu ya simenti imadalira kwambiri kuchuluka kwa tricalcium silicate mu simenti: ngati kuchuluka kwa tricalcium silicate kuli kochepa, sikuchepetsa mphamvu yochedwa ya simenti, komanso kumakhala ndi mphamvu yoletsa kuzizira pa kutentha kochepa.

Mukufuna chowonjezera mphamvu choyambirira chopanda dzimbiri, chosavuta kutentha? Calcium formate imawonjezera mphamvu ya mortar (popanda kutayika kwa mphamvu mochedwa!)—choyenera kwambiri pa nthawi yomanga yocheperako. Titumizireni uthenga kuti mudziwe momwe imakwezera mapulojekiti anu!