Belay Zeleke Dilnesa - Eawag-Empa Library

More documents

Recommendations

Info

Fig. 62 Calculated solubility products of Fe-Si-hydrogarnets from the solubility experiments. (lines show calculated values, full symbols show the measured values from undersaturation and empty symbols from oversaturation). ................. 135 Fig. 63 XRD pattern of the solid solution series of Ca3Fe2(SiO4)3-y(OH)4y, + CH. The dotted lines indicate the peak shifts. *Main reflections of the hydroandradite end members. Note that Xsi = y = 3 ............................................................................... 136 Fig. 64 Solubility products as a function of Si content in between C3FH6 and C3FS3 end members at 25 °C. The dotted line connects the solubility products of C3FH6 and C3FS3. ............................................................................................................... 138 Fig. 65 XRD pattern of the solid solution series of Ca3(AlxFe1-x)2(SiO4)(OH)8 synthesized at 110 °C. ............................................................................................. 139 Fig. 66 Lippmann diagram illustrating the total solubility products of Al/Fe-siliceous hydrogarnet solid solution series Ca3(AlxFe1-x)2(SiO4)0.9(OH)8.4 at a) 20 °C b) 50 °C: .experimentally determined total solubility products (filled symbols), modeled total solubility products assuming ideal solid solution (dashed lines). In addition also the solubility product of C3AS0.84H4.32 and C3FS0.95H4.1 derived from the experimental data (empty symbols) and the solubility products assuming no solid solution (dotted lines) are given. X-axis: Al/(Al + Fe) ratio in the solid or liquid phases, respectively. .................................................................. 143 Fig. 67 XRD patterns of OPC (+) and HS (*) cements hydrated at 20 °C. .................... 149 Fig. 68 TGA-DTG curves of OPC (+) and HS (*) cements hydrated at 20 °C. ............. 150 Fig. 69 XRD patterns of OPC (+) and HS (*) cement hydrated for 1 year at 50 °C: The XRD peak at 2θ ~ 11.30 is between the monosulfate and monocarbonate peaks. ...................................................................................................................... 151 Fig. 70 TGA-DTG curves of OPC (+) and HS (*) cement hydrated for 1 year at 50 °C 152 Fig. 71 XRD patterns of OPC (+) and HS (*) hydrated at 20 °C after selective dissolution using SAM. Note that the samples suffered from carbonation during SAM extraction. ...................................................................................................... 153 Fig. 72 TGA-DTG curves of OPC (+) and HS (*) hydrated at 20 °C after selective dissolution with SAM. ............................................................................................ 154 Fig. 73 XRD patterns of OPC (+) and HS (*) hydrated at 50 °C for 150 days after selective dissolution with SAM. ............................................................................. 154 Fig. 74 SEM/EDX of hydrated OPC for 2 years at (a) 20 °C and (b) 50 °C after selective dissolution with SAM. ............................................................................. 156 Fig. 75 Atomic ratio of hydrated OPC for 2 years at (a) 20 °C and (b) 50 °C after selective dissolution with SAM. ............................................................................. 157 viii
Fig. 76 Fe K-edge XANES spectra of Fe-containing hydrates. The broken lines indicate the position of related spectral features. .................................................... 159 Fig. 77 k 3 -weigthed experimental bulk-EXAFS spectra of Fe-containing phases used as reference compounds. The broken lines indicate the position of related spectral features. ..................................................................................................... 160 Fig. 78 EXAFS spectra of hydrated OPC at 20 °C and at different ages (line: experimental data; dots: modelled data). The broken lines outline selected spectral features. ..................................................................................................... 161 Fig. 79 EXAFS spectra of hydrated OPC at 50 °C and at different ages (line: experimental data; dots: modeled data). The broken lines outline selected spectral features. ..................................................................................................... 162 Fig. 80 EXAFS spectra of hydrated HS at 20 °C and at different ages (line: experimental data; dots: modeled data). The broken lines outline selected spectral features. ..................................................................................................... 163 Fig. 81 EXAFS spectra of hydrated HS at 50 °C and at different ages (line: experimental data; dots: modeled data). The broken lines outline selected spectral features. ..................................................................................................... 163 Fig. 82 Volume changes of hydrated phases at different hydration ages during hydration of OPC at room temperature. .................................................................. 168 Fig. 83 Heat flow of the hydration of C2F and synthetic Fe-cement in the presence of different amounts of gypsum. ................................................................................. 172 Fig. 84 XRD (above) and TGA-DTG (below) analysis of C2F and synthetic Fecement after 3 days of hydration in the presence of different amounts of gypsum *Fe-OH-AFm +unidentified. .................................................................................. 173 Fig. 85 XRD (above) and TGA-DTG (below) analysis of C2F and synthetic Fecement after 3 months of hydration in the presence of different amounts of gypsum *Fe-AFm hydroxyl. ................................................................................... 175 Fig. 86 Calculated phase diagram of thermodynamic stable hydrate assemblages of synthetic Fe-cement with different amounts of gypsum. ........................................ 176 Fig. 87 Conduction calorimeter curve of the hydration of synthetic Fe-cement with different amounts of gypsum and calcite. ............................................................... 177 Fig. 88 XRD (above) and TGA-DTG (below) analysis of synthetic Fe-cement after 3 months of hydration with different amounts of gypsum and calcite ...................... 179 Fig. 89 Calculated phase diagram of thermodynamic stable hydrate assemblages of Fe-synthetic cement with different amounts of gypsum and calcite. ...................... 180 ix
Page 1: Fe-containing hydrates and their fa
Page 4 and 5: The measured composition of the liq
Page 6 and 7: ZUSAMMENFASSUNG Thermodynamische Mo
Page 8 and 9: konnten die Fe-haltigen Hydrate im
Page 10 and 11: I owe to thank all the laboratory t
Page 12 and 13: Table 19 Compositions of Al/Fe-mono
Page 14 and 15: LIST OF FIGURES Fig. 1 Calculated v
Page 16 and 17: Fig. 34 Calculated solubility produ
Page 20 and 21: Table of Contents TABLE OF CONTENTS
Page 22 and 23: TABLE OF CONTENTS 3. SYNTHETIC FE
Page 24 and 25: TABLE OF CONTENTS 3.5.4. Solid solu
Page 26 and 27: 1 INTRODUCTION CHAPTER 1 INTRODUCTI
Page 28 and 29: CHAPTER 1 INTRODUCTION be formed. T
Page 30 and 31: cm 3 /100 g cement 85 80 75 70 65 6
Page 32 and 33: CHAPTER 1 INTRODUCTION 1.4 Characte
Page 34 and 35: CHAPTER 1 INTRODUCTION Fig. 4 Sampl
Page 36 and 37: CHAPTER 1 INTRODUCTION Identificat
Page 38 and 39: CHAPTER 2 MATERIALS AND METHODS han
Page 40 and 41: 3CaOAl2O3 + 6H2O → 3CaOAl2O36H2O
Page 42 and 43: CHAPTER 2 MATERIALS AND METHODS Tab
Page 44 and 45: CHAPTER 2 MATERIALS AND METHODS 2.2
Page 46 and 47: CHAPTER 2 MATERIALS AND METHODS fil
Page 48 and 49: CHAPTER 2 MATERIALS AND METHODS at
Page 50 and 51: CHAPTER 2 MATERIALS AND METHODS the
Page 52 and 53: CHAPTER 2 MATERIALS AND METHODS 0 t
Page 54 and 55: CHAPTER 2 MATERIALS AND METHODS Tab
Page 56 and 57: CHAPTER 2 MATERIALS AND METHODS 2.3
Page 58 and 59: CHAPTER 2 MATERIALS AND METHODS The
Page 60 and 61: CHAPTER 3 SYNTHETIC FE-CONTAINING H
Page 68 and 69:
CHAPTER 3 SYNTHETIC FE-CONTAINING H
Page 70 and 71:
Page 72 and 73:
Page 74 and 75:
a). b). CHAPTER 3 SYNTHETIC FE-CONT
Page 76 and 77:
Page 78 and 79:
Page 80 and 81:
o layer thickness (A) 8.0 7.8 7.6 C
Page 82 and 83:
Page 84 and 85:
Page 86 and 87:
Phase log KSo CHAPTER 3 SYNTHETIC F
Page 88 and 89:
volume [cm 3 ] 700 600 500 400 300
Page 90 and 91:
Page 92 and 93:
Page 94 and 95:
Page 96 and 97:
Page 98 and 99:
Page 100 and 101:
Page 102 and 103:
Page 104 and 105:
Page 106 and 107:
Page 108 and 109:
Page 110 and 111:
Page 112 and 113:
Page 114 and 115:
Page 116 and 117:
Page 118 and 119:
Intensity [arb. units] Fe-Fr CHAPTE
Page 120 and 121:
Page 122 and 123:
Page 124 and 125:
Page 126 and 127:
Page 128 and 129:
Page 130 and 131:
Page 132 and 133:
Page 134 and 135:
Page 136 and 137:
Page 138 and 139:
Page 140 and 141:
Page 142 and 143:
Page 144 and 145:
Page 146 and 147:
Page 148 and 149:
Page 150 and 151:
Page 152 and 153:
Page 154 and 155:
Page 156 and 157:
Page 158 and 159:
Page 160 and 161:
Page 162 and 163:
Page 164 and 165:
Page 166 and 167:
Page 168 and 169:
Page 170 and 171:
Page 172 and 173:
CHAPTER 4 FE-CONTAINING HYDRATES IN
Page 174 and 175:
Page 176 and 177:
Page 178 and 179:
Page 180 and 181:
Page 182 and 183:
(Al+Fe)/Ca (Al+Fe)/Ca 0.8 0.6 0.4 0
Page 184 and 185:
Page 186 and 187:
Page 188 and 189:
k 3 (k) CHAPTER 4 FE-CONTAINING HYD
Page 190 and 191:
Page 192 and 193:
Page 194 and 195:
Page 196 and 197:
Page 198 and 199:
Page 200 and 201:
differentiated relative weight Weig
Page 202 and 203:
Early reaction CHAPTER 4 FE-CONTAIN
Page 204 and 205:
weight loss in % differentiated rel
Page 206 and 207:
Page 208 and 209:
5. GENERAL CONCLUSION AND OUTLOOK a
Page 210 and 211:
Speciation of iron(III) in hydrated
Page 212 and 213:
5. GENERAL CONCLUSION AND OUTLOOK
Page 214 and 215:
Techniques XRD X-ray diffraction TG
Page 216 and 217:
APPENDIX APPENDIX Appendix A: Addit
Page 218 and 219:
Intensity (arb. Units) P Fe 2O 3 R
Page 220 and 221:
APPENDIX Appendix B7 XRD patterns o
Page 222 and 223:
REFERENCES REFRENCES [1] H.F.W. Tay
Page 224 and 225:
REFRENCES [29] M. Vespa, R. Dähn,
Page 226 and 227:
REFRENCES [54] M. Balonis, B. Lothe
Page 228 and 229:
REFRENCES [81] H.F.W. Taylor, Cryst
Page 230 and 231:
REFRENCES [107] K. Kyritsis, N. Mel
Page 232 and 233:
REFRENCES [134] M. Wilke, F. Farges
Page 235 and 236:
CURRCULUM VITAE Curriculum Vitae Na
show all

Belay Zeleke Dilnesa - Eawag-Empa Library

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?