Product Description

GREY PORTLAND CEMENT CONSTRUCTION GRADE *2.5 N/R CHEMICAL COMPOSITION ⢠Silicon Dioxide (SiO2) *0.8 â*1.5 ⢠Aluminum Oxide (Al2O3) 5.*0 ⢠Ferric Oxide (Fe2O3) 3.*5 â 3.5 ⢠Calcium Oxide (CaO) *5.*0 ⢠Magnesium Oxide (MgO%) 1.7 â 3.0 ⢠Sulphur Trioxide (SO3) 2.7 â 3.0 ⢠Loss Of Ignition (LOI) 1.8 â 3.0 ⢠Insoluble Residue % 0.1 â 0.7 ⢠Tricalcium Silicate (C3S%) *0.0 â *4.4 ⢠Dicalcium Silicate (C2S%) *4.2 â *8.2 ⢠Tricalcium Aluminate (C3A%) 6.0 â 6.8 ⢠Tricalcium Alumino Ferrice (C4AF%) *1.6 ⢠Chromium (Cr%) 2.0 Max. PHYSICAL AND MECHANICAL PROPERTIES ⢠Blain CM2/GR 3.**0 ⢠Autoclave Expantion 0.*2 ⢠Normal Consistency % *7.5 ⢠Initial Setting Time (Hours:Mins) 3.*5 â 4.*0 ⢠Hard Set (Hours:Mins) 4.*4 â 6.*0 ⢠Fitnes Index (CM2/GM) ********0/