Influence of addition of Al compound and gypsum on tobermorite formation in autoclaved aerated concrete studied by in situ X-ray diffraction
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Construction Materials Laboratory, Asahi-KASEI Construction Materials Corporation, Japan
Analysis and Simulation Center, Asahi-KASEI Corporation, Japan
Publication date: 2011-12-01
Cement Wapno Beton (Special 2011 16) 3-6 (2011)
The hydrothermal formation of tobermorite during the processing of autoclaved aerated concrete was investigated by in situ XRD analysis. The XRD measurement is carried out using high-energy X-rays from a synchrotron radiation source. The effects of Al and gypsum addition on tobermorite formation were studied. Acceleration of tobermorite formation by Al and gypsum addition was clearly observed. The tobermorite formation mechanisms were discussed in these systems.
This study was performed with the approval of JASRI (Proposal Nos. 2008B1864, 2008B2031 and 2009B1788).
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