TY - JOUR
T1 - Elucidating the Size and Shape of Individual Clinker Phases via Raman Imaging
T2 - Impact on Cement Hydration
AU - Polavaram, Krishna C.
AU - Garg, Nishant
N1 - This research was carried out in part in the Materials Research Laboratory Central Research Facilities, Microscopy Suite at the Beckman Institute of Advanced Science and Technology, and Core Facilities at the Carl R. Woese Institute of Genomic Biology at the University of Illinois. K.C.P. acknowledges the Ravindar K. and Kavita Kinra Fellowship for supporting his studies. Authors partially acknowledge support from U.S. Department of Energy’s Nuclear Energy University Program (DOE-NEUP: DE-NE0008886). In addition, the authors acknowledge the help received from Prof. Waltraud M Kriven from the Materials Science and Engineering department, University of Illinois, for carrying out laser diffraction experiments. The authors also acknowledge Argos USA, CalPortland Company, Central Plains Cement Company, Lafarge Holcim, and Lehigh (Heidelberg Cement Group) for supplying the cement samples.
PY - 2023/8/31
Y1 - 2023/8/31
N2 - Portland cement, produced at 4 billion tons/year, is a key ingredient of concrete─the world’s most consumed material after water. The hydration and hardening of cement upon reaction with water are greatly influenced by cement’s chemical composition as well as its overall particle size distribution (PSD). However, given that anhydrous cements are a composite mixture of 8-12 chemically unique phases, the physical characteristics (size and shape) of these individual phases have not been fully explored in the literature. Here, by utilizing Raman imaging, we report, for the first time, phase-specific PSDs and shape characteristics for all individual components in a set of 10 commercially available diverse cements. By combining these physical characteristics with chemical abundance, we define a composition-size quotient parameter (CSQ), which is able to predict the 72 h cumulative heat upon hydration (R2 = 0.86)─a key indicator of performance, underscoring the importance of such phase-specific physical characteristics.
AB - Portland cement, produced at 4 billion tons/year, is a key ingredient of concrete─the world’s most consumed material after water. The hydration and hardening of cement upon reaction with water are greatly influenced by cement’s chemical composition as well as its overall particle size distribution (PSD). However, given that anhydrous cements are a composite mixture of 8-12 chemically unique phases, the physical characteristics (size and shape) of these individual phases have not been fully explored in the literature. Here, by utilizing Raman imaging, we report, for the first time, phase-specific PSDs and shape characteristics for all individual components in a set of 10 commercially available diverse cements. By combining these physical characteristics with chemical abundance, we define a composition-size quotient parameter (CSQ), which is able to predict the 72 h cumulative heat upon hydration (R2 = 0.86)─a key indicator of performance, underscoring the importance of such phase-specific physical characteristics.
UR - https://www.scopus.com/pages/publications/85169018116
UR - https://www.scopus.com/pages/publications/85169018116#tab=citedBy
U2 - 10.1021/acs.jpcc.3c03453
DO - 10.1021/acs.jpcc.3c03453
M3 - Article
AN - SCOPUS:85169018116
SN - 1932-7447
VL - 127
SP - 17157
EP - 17170
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
IS - 34
ER -