Figure 3
Time-resolved normalized reflection intensities from 373 K (0 min) to constant conditions at 466 K and 1.35 MPa (>230 min). Below 443 K, the fluorite and quartz intensities decrease proportionally in response to increasing temperature and pressure, while above 443 K further decrease of the quartz intensities is related to hydrothermal dissolution. The approximation (solid line) is a combination of temperature correction (dashed line) and a first-order reaction behaviour. Distinct tobermorite crystallization starts at 210 min and a first-order reaction behaviour can be assumed (solid line). |