Cement caah a rannak in a fekmi thilri, hriak le a hramthawk thazaang peknak thilri ah hman a si. Cement a har khawhnak rang deuh in tuah khawhnak ding le a fek khawhnak caan tawiter khawhnak ding caah mortar le concrete phunphun saknak ah hman a si, a hlei in khuasik caan ah saknak ah a tlawm tukmi lumnak ah a fek khawhnak rang tuk hrial khawhnak ding caah hman a si. Cement cu a rannak in hman khawh a si nakhnga rang tein hrawh. Calcium formate nih a hmanmi: a ro cangmi cawhmi vutcam phunkip, concrete phunkip, a rawk kho lomi thilri, inncung sernak, rawl sernak, vun tannak. Calcium formate i telnak le ralrinnak Calcium formate a ro mi mortar le concrete ton khat ah 0.5 ~ 1.0% hrawng a si, cun a tam bik cu 2.5% a si. A lum a zor deuhdeuh tikah calcium formate zat cu zaangfah tein a karh. Khuasik ah 0.3-0.5% zat hman hmanh ah, a hramthawk tein thazaang tthatnak a chuahpi lai.