Castable Refractories Semen Bangunan Spesification Tnc-12 Tnc-13 Tnc-14 Tnc-15 Max. Service Temperatur ( C) ( Temperatur Kerja Maximum) 1050 1200 1350 1400 Bulk Density ( Berat Jenis) ( Gr/ Cm3) 1.8-1.9 1.9-2.0 2.0-2.2 2.2-2.3 Additional Water ( % ) ( Penambahan Air 14-18 14-18 13-18 13-16 Thermal Conductivity ( Kcal/ Mh C) ( Perambatan Panas)