Calcium formate cu thir thazaang peknak ah rawhralnak a ngei lomi chapmi a si. A molecule formula cu C2H2CaO4 a si. A bik in cement chung i tricalcium silicate ti tlawmternak kha a rangter, cucaah cement mortar a hramthawk thazaang kha a ṭhanchoter. Calcium formate nih mortar thazaang cungah a chuahpimi thil cu cement chung i tricalcium silicate a tlawm le tam cungah aa hngat: tricalcium silicate a tlawm ahcun, mortar a hnu lei thazaang a zorter lai lo, cun a niam deuhmi lumnak ah a lum lonak ding caah a tthatnak zong a ngei.

Rawkralnak a ngei lomi, lumnak tlawmte he aa remmi a hramthawk thazaang petu na kawl maw? Calcium formate nih mortar a hramthawk thazaang kha a tthawnter (a hnu deuh thazaang a tlau lo!)—saknak caan tawite caah a ttha. Na project pawl zeitindah a thanchoter ti hngalh awkah thawngthanhnak kan kuat!