The formation of 1.13 nm tobermorite under hydrothermal conditions: 1. The influence of quartz grain size within the system CaO–SiO2–D2O |
| |
| Authors: | S Bernstein KT Fehr |
| |
| Institution: | 1. Department of Physics, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand;2. Research Development Center, INSEE Superblock Company Limited, Singburi 16150, Thailand;1. School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan, China;2. Hubei Engineering Research Center for Virtual, Safe and Automated Construction, Wuhan, China;1. National Engineering Laboratory for Hydrometallurgy Cleaner Production Technology, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China;2. University of Chinese Academy of Science, Beijing 100049, PR China;1. National Engineering Laboratory for Coal-fired Pollutants Emission Reduction, Shandong University, Jinan, 250061, PR China;2. Civil, Environmental and Geomatic Engineering, University College London, London, WC1E 6BT, United Kingdom;1. Faculty of Civil Engineering and Architecture, West Pomeranian University of Technology, Al. Piastów 50, 70-311 Szczecin, Poland;2. Institute of Mathematics, Faculty of Electrical Engineering, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland;3. Department of Process Engineering, Institute of Technology and Chemical Engineering, Poznań University of Technology, Berdychowo 4, 60-965 Poznań, Poland |
| |
| Abstract: | The influence of grain size of quartz on the formation of 1.13 nm tobermorite in aerated autoclaved concrete was investigated by applying in-situ neutron diffraction. Experiments were performed at 210 °C/Psat employing quartz of 8 μm and 16 μm, respectively. The results reveal changes in the reaction mechanism from solution control to diffusion control. The grain size of the quartz fraction clearly influences the occurrence of those changes. Based on those results an interpretation of former not clearly interpretable quenching experiments was performed. An interpretation using different reaction mechanisms for those experiments leads to a coherent picture of the reaction. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
