Table 1 Content of various oxides in granite after heating to different temperatures.
From: Study on the failure mechanism of high-temperature granite under two cooling modes
Oxides | 100 ℃ | 200 ℃ | 300 ℃ | 400 ℃ | 500 ℃ | 600 ℃ |
|---|---|---|---|---|---|---|
MgO | 1.51 | 1.39 | 1.44 | 2.14 | 1.74 | 1.66 |
Al2O3 | 19.47 | 19.43 | 19.04 | 19.28 | 19.68 | 19.18 |
SiO2 | 67.46 | 68.18 | 68.13 | 66.7 | 66.98 | 69.02 |
K2O | 4.11 | 3.76 | 4.09 | 3.96 | 4.19 | 3.8 |
CaO | 3.61 | 3.58 | 3.7 | 3.91 | 3.52 | 3.43 |
Fe2O3 | 2.07 | 1.91 | 1.93 | 2.14 | 2.15 | 1.45 |
MnO2 | 541.7 | 449.2 | 488.9 | 521.2 | 541.7 | 332.8 |
P2O5 | 0.59 | 0.61 | 0.62 | 0.62 | 0.58 | 0.54 |
