TY - JOUR
T1 - Variation of microstructure with carbonation in lime and blended pastes
AU - Arandigoyen, M.
AU - Bicer-Simsir, B.
AU - Alvarez, J. I.
AU - Lange, D. A.
N1 - Funding Information:
The present study was the result of a brief stay in the University of Illinois in Urbana Champaign supported by the “Ministerio de Educación Cultura y Deporte” of Spain. We also acknowledge support from the Portland Cement Association for Beril Bicer–Simser's participation. Additional project support at UIUC was provided by the Center for Advanced Cement-Based Materials.
PY - 2006/8/15
Y1 - 2006/8/15
N2 - Carbonation, as a reaction of the curing process of both, cement and lime binders, modifies the microstructure. Several microstructure properties, namely porosity, pore size distribution, surface fractal dimension, and specific surface area have been investigated in this study to describe the effect of carbonation on microstructure. Both carbonated and non-carbonated pastes of lime and blended pastes of lime and cement having varying water/binder (W/B) ratios are studied. Results show that carbonation decreases the porosity, but not with the same intensity in all pore size ranges. The highest modification is between 0.03 μm and 0.01 μm in lime pastes and between 0.2 μm and 0.02 μm in 50% lime pastes, while in 80% lime pastes the modification is very small. It is also observed that carbonation is a function of the binder composition but not of the W/B ratio. Moreover, surface fractal dimension decreases during the carbonation process, while the specific surface area varies depending of the binder composition.
AB - Carbonation, as a reaction of the curing process of both, cement and lime binders, modifies the microstructure. Several microstructure properties, namely porosity, pore size distribution, surface fractal dimension, and specific surface area have been investigated in this study to describe the effect of carbonation on microstructure. Both carbonated and non-carbonated pastes of lime and blended pastes of lime and cement having varying water/binder (W/B) ratios are studied. Results show that carbonation decreases the porosity, but not with the same intensity in all pore size ranges. The highest modification is between 0.03 μm and 0.01 μm in lime pastes and between 0.2 μm and 0.02 μm in 50% lime pastes, while in 80% lime pastes the modification is very small. It is also observed that carbonation is a function of the binder composition but not of the W/B ratio. Moreover, surface fractal dimension decreases during the carbonation process, while the specific surface area varies depending of the binder composition.
KW - Blended pastes
KW - Carbonation
KW - Lime pastes
KW - Pore size distribution
KW - Surface fractal dimension
KW - W/B ratio
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U2 - 10.1016/j.apsusc.2005.09.007
DO - 10.1016/j.apsusc.2005.09.007
M3 - Article
AN - SCOPUS:33747183993
SN - 0169-4332
VL - 252
SP - 7562
EP - 7571
JO - Applied Surface Science
JF - Applied Surface Science
IS - 20
ER -