粘土质隔热耐火砖的理化指标见表1
表1 粘土质隔热砖的理化指标
指标 | ||||||||||
NG-1.5 | NG | NG-1.3b | NG-1.0 | NG-0.9 | NG-0.8 | NG-0.7 | NG-0.6 | NG-0.5 | NG-0.4 | |
体积密度/g•cm-3不大于 | 1.5 | 1.3 | 1.3 | 1 | 0.9 | 0.8 | 0.7 | 0.6 | 0.5 | 0.4 |
常温耐压强度/Mpa不小于 | 60 | 45 | 40 | 30 | 25 | 25 | 20 | 15 | 12 | 10 |
重烧线变化1)不大于2%的试验温度/℃ | 1400 | 1400 | 1350 | 1350 | 1300 | 1250 | 1250 | 1200 | 1150 | 50 |
G热导率2)/W•(m•K) -1(平均温度350± | 0.7 | 0.6 | 0.6 | 0.5 | 0.4 | 0.35 | 0.35 | 0.25 | 0.25 | 0.2 |
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