性能 Performance 數(shù)據(jù)Data 耐火極限           Incombustibility 180min 防火特征           Characteristic Incombustible Class A 抗折強度           Anti-bend strength >16Mpa 濕漲率             Moisture movement <0.19% 密度               Density 1,000 - 1,400kg/cbm 不透水性           Water penetration rate 0% 熱傳導系數(shù)         Thermai conductive index 0.24W/MK (JC/T54) 放射性             Radioactivity GB6566-2000 standards 干縮率             Dry shrinking rate <0.09% 出廠含水率          Moisture content <10% 吸水率             Water absorption rate 19.00% 隔音量             Noise reduction 45dB(GBJ75-84)