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  5. Effects of Foreign Elements on Anhydrous and Hydrous C2S Phases, A Possible Feedstock for Hydraulic

Effects of Foreign Elements on Anhydrous and Hydrous C2S Phases, A Possible Feedstock for Hydraulic

来源 :The 14th International Congress on the Chemistry of Cement ( | 被引量 : 0次 | 上传用户：kooksnake
【摘 要】
：
This study comprises the synthesis, characterization and hydration behavior of pure and doped C2S (Ca2SiO4;C=CaO S=SiO2.).The samples were synthesized via the Pechini method at 800℃ for 2h.Products we
【作 者】
：
P(o)hler  K. P(o)llmann  H. Stemmermann  P. Garbev  K. 
【机 构】
：
Mineralogy/Geochemistry, Martin-Luther-University Halle Wittenberg, Halle/Saale, 06120, Germany
【出 处】
：
The 14th International Congress on the Chemistry of Cement (
【发表日期】
：
2015年8期
【关键词】
：
Ca2SiO4 a-C2SH Stabilization Hydration Celitement 
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　　This study comprises the synthesis, characterization and hydration behavior of pure and doped C2S (Ca2SiO4;C=CaO S=SiO2.).The samples were synthesized via the Pechini method at 800℃ for 2h.Products were analyzed and characterized with X-ray powder diffraction, thermogravimetry, BET, density measurements and Raman spectroscopy.The hydration behavior at standard conditions (23℃, lbar) was investigated with heat flow calorimetry.Reactivity at hydrothermal conditions (200℃, 16bar) was tested using laboratory autoclaves.In situ hydration studies under hydrothermal conditions were also performed with time and temperature resolved XRD in transmission mode at the SUL-X beamline of the ANKA Synchrotron radiation facility (Karlsruhe) in a specially designed reaction cell.
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