Aditya Singh Rajput - Academia.edu (original) (raw)
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Papers by Aditya Singh Rajput
Construction & building materials, Mar 1, 2024
Magazine of Concrete Research
Carbon dioxide sequestration in cement-based materials has emerged as a promising avenue for util... more Carbon dioxide sequestration in cement-based materials has emerged as a promising avenue for utilising captured carbon dioxide (CO2) and reducing the carbon dioxide footprint of the concrete industry. This article presents a comprehensive review of various studies conducted in this domain with a particular emphasis on factors affecting the carbon dioxide uptake potential of various concrete types and the effect of carbonation on the critical properties of concretes. Studies conducted on the micro-mechanical analysis of carbon sequestered concrete show that carbonation significantly improved the microhardness of the concrete samples, thereby increasing the strength and reducing the cement intake requirement. Further, keeping two parameters, namely water/solid (w/s) ratio and carbonation reaction time, in focus, the carbon dioxide uptake capacity in concrete slurry waste (CSW) was evaluated using non-linear regression analysis. It was observed that CSW paste had a maximum carbon dioxi...
International Journal of Civil Infrastructure
Proceedings of the 7th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'22)
ACI Materials Journal, 2019
Engineering Structures, 2018
Engineering Structures, 2019
Structural Concrete, 2019
Experimental investigations were carried out to examine the seismic performance of corroded reinf... more Experimental investigations were carried out to examine the seismic performance of corroded reinforced concrete (RC) columns with sparsely distributed ties (under‐confined columns). Four full‐scale specimens were cast, corroded, and tested in this study. One specimen followed current seismic guidelines and acted as control column, while other three columns with larger tie spacing represented precode era under‐confined columns. Two of the three under‐confined columns were corroded to 15 and 30% corrosion degrees using a precalibrated accelerated corrosion regime. The entire study was intended to quantify the effect of inadequate confinement and corrosion on seismic response of RC columns. The results showed that the sparsely distributed transverse reinforcement resulted in lowering lateral strength and deformability of RC Columns. When these under‐confined columns were deteriorated by corrosion, their structural performance was found to have degraded significantly. It was observed th...
Construction & building materials, Mar 1, 2024
Magazine of Concrete Research
Carbon dioxide sequestration in cement-based materials has emerged as a promising avenue for util... more Carbon dioxide sequestration in cement-based materials has emerged as a promising avenue for utilising captured carbon dioxide (CO2) and reducing the carbon dioxide footprint of the concrete industry. This article presents a comprehensive review of various studies conducted in this domain with a particular emphasis on factors affecting the carbon dioxide uptake potential of various concrete types and the effect of carbonation on the critical properties of concretes. Studies conducted on the micro-mechanical analysis of carbon sequestered concrete show that carbonation significantly improved the microhardness of the concrete samples, thereby increasing the strength and reducing the cement intake requirement. Further, keeping two parameters, namely water/solid (w/s) ratio and carbonation reaction time, in focus, the carbon dioxide uptake capacity in concrete slurry waste (CSW) was evaluated using non-linear regression analysis. It was observed that CSW paste had a maximum carbon dioxi...
International Journal of Civil Infrastructure
Proceedings of the 7th International Conference on Civil, Structural and Transportation Engineering (ICCSTE'22)
ACI Materials Journal, 2019
Engineering Structures, 2018
Engineering Structures, 2019
Structural Concrete, 2019
Experimental investigations were carried out to examine the seismic performance of corroded reinf... more Experimental investigations were carried out to examine the seismic performance of corroded reinforced concrete (RC) columns with sparsely distributed ties (under‐confined columns). Four full‐scale specimens were cast, corroded, and tested in this study. One specimen followed current seismic guidelines and acted as control column, while other three columns with larger tie spacing represented precode era under‐confined columns. Two of the three under‐confined columns were corroded to 15 and 30% corrosion degrees using a precalibrated accelerated corrosion regime. The entire study was intended to quantify the effect of inadequate confinement and corrosion on seismic response of RC columns. The results showed that the sparsely distributed transverse reinforcement resulted in lowering lateral strength and deformability of RC Columns. When these under‐confined columns were deteriorated by corrosion, their structural performance was found to have degraded significantly. It was observed th...