1. Department of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, UK.
2. Institute of Construction and Building Materials, Technical University of Darmstadt, Franziska-Braun-Str. 3, 64287 Darmstadt, Germany.
3. Laboratory for the Chemistry of Construction Materials, and Institute for Carbon Management (ICM), University of California, Los Angeles, USA.
4. Laboratory for Waste Management (LES), Paul Scherrer Institut, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland.