性能指标项目 | 国标 | 检测标准 | ||||
60mm | 90mm | 120mm | 60mm | 90mm | 120mm | |
抗弯破坏荷载/自重倍数 | ≥1.6 | ≥1.8 | ≥1.8 | ≥3.5 | ≥4 | ≥5 |
抗压强度/Mpa | ≥3.5 | ≥3.5 | ≥3.5 | ≥5.5 | ||
软化系数 | ≥0.75 | ≥0.80 | ≥0.80 | ≥1 | ||
空气声隔量dB | ≥30 | ≥35 | ≥40 | ≥35 | ≥40 | ≥45 |
含水率a% | ≤12/10/8 | ≤10/9/7 | ||||
干燥收缩值/mm/m | ≤0.55 | ≤0.45 | ≤0.5 | ≤05 | ||
吊挂力/N | ≥1100 | ≥1200 | ≥1300 | ≥1500 | ||
耐火极限/h | ≥1 | ≥2.5 | ≥3 | ≥4 | ||
传热系数b/w/m.k | ≤1.0 | ≤1.0 | ||||
放射性能比活度限量(实心版) | ≤1 | ≤1 | ||||
IRa(内照射指数) | ≤1 | ≤1 | ||||
Ir(外照射指数) | ≤1 | ≤1 | ||||
抗冲击性能/次 | ≥5 | ≥5 | ≥5 | ≥9 | ≥10 | ≥15 |
面密度/Kg/m2 | ≤70 | ≤90 | ≤110 | ≤55 | ≤70 | ≤85 |