| 项目 (ltem) |
技术性能指标 (Technical index) |
密度级别 (Density grade) |
B04 |
B05 |
B06 |
强度级别 (lntensity) |
A2.0 |
A2.5 |
A2.5 |
A3.5 |
A3.5 |
A5.0 |
立方体抗压强度(MPa) (compressivestrengtofthcube) |
平均值(Average) |
≥2.0 |
≥2.5 |
≥2.5 |
≥3.5 |
≥3.5 |
≥5.0 |
| 最小值(Minimun) |
≥1.6 |
≥2.0 |
≥2.0 |
≥2.8 |
≥2.8 |
≥4.0 |
平均干密度(Kg/m3) (Average dry density) |
≤425 |
≤425 |
≤525 |
≤525 |
≤625 |
≤625 |
干导热系数{W/(m.k)} (Dry thermal conductivity) |
0.12 |
0.14 |
0.16 |
抗冻性 (Frost resistance) |
质量损失(%) (Quality loss) |
≤5.0 |
冻后强度(MPa) (Frosted strength) |
大于立方体抗压强度平均值80% (More than 80 percent of the compressive sthrength of the cube above) |
干燥收缩率 (Dry shrinkage) |
标准法(mm/m) (Standard methhood) |
≤0.50 |