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Figure 3
Time-resolved EDD data on oilwell Portland cements hydrating at 403 K under autoclave (a,b) and ambient (c) conditions. (a) A three-dimensional view of the autoclave sequence (hydrothermal conditions, temperature ramp 303–403 K, over 2 h) in which the main phases are indicated. (b) The corresponding phase concentration plots, in which the coded phases are maximally normalized to 1.0, together with the actual autoclave temperature profile attained; (c) An equivalent phase concentration plot for hydration under ambient conditions. The autoclave displays more rapid hydration and a more complex interplay between the monosulphate and ettringite phases.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 7| Part 3| May 2000| Pages 167-177
doi:10.1107/S0909049500003137
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