1.High strength 2.Frost Resistance,Fire retardancy,water resistance,non deforming Product Data:Materials: Tobermorite, Portland cement, Quartz sand, Paper plugDensity: ≥ 1300 kg/m3Flexural strength: ≥ 15.80 MpaMoisture content: ≤ 10%Thermal conductivity: ≤ 0.23/*****Water absorption: ≤ 30%Bulking factor: ≤0.23%Non Combustible: British Standard 476, part20&22, 1987. Radioactivity: GB65662001 A ...