TY - JOUR
T1 - Performance assessment of seawater fly ash cement paste with integrated physicochemical- geochemical simulation platform and experimental validation
AU - Wang, Zhao
AU - Yaseen, Sarah Abduljabbar
AU - Maekawa, Koichi
AU - Leung, Christopher K.
AU - Poon, Chi Sun
AU - Li, Zongjin
N1 - Funding Information:
The authors would like to express their sincere gratitude to the Japan Society for the Promotion of Science for its support of this study in the form of a Grant-in-Aid for Scientific Research (A) (20H00260) and Fellowship (20F20367). Financial support by the Hong Kong Research Grants Council Theme-Based Research Scheme under the project Sustainable Marine Infrastructure Enabled by the Innovative Use of Seawater Sea-Sand Concrete and Fibre-Reinforced Polymer Composites; the grant number is T22-502/18-R. The authors would also like to acknowledge the assistance from the Department of Civil and Environmental Engineering and Materials Characterizations and Preparation Facility (MCPF) at the Hong Kong University of Science and Technology.
Funding Information:
The authors would like to express their sincere gratitude to the Japan Society for the Promotion of Science for its support of this study in the form of a Grant-in-Aid for Scientific Research (A) ( 20H00260 ) and Fellowship ( 20F20367 ). Financial support by the Hong Kong Research Grants Council Theme-Based Research Scheme under the project Sustainable Marine Infrastructure Enabled by the Innovative Use of Seawater Sea-Sand Concrete and Fibre-Reinforced Polymer Composites; the grant number is T22-502/18-R . The authors would also like to acknowledge the assistance from the Department of Civil and Environmental Engineering and Materials Characterizations and Preparation Facility (MCPF) at the Hong Kong University of Science and Technology.
Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/11/15
Y1 - 2023/11/15
N2 - The shortage of river sand and fresh water for concrete production has become a severe issue, accompanied by a significant increase in infrastructural constructions, especially for coastal areas. Therefore, the possibility of utilizing seawater and sea sand as alternative raw materials for concrete components has attracted broad research interest in recent decades. This paper presents experimental, and simulation investigation to comprehensively study the material performance of seawater fly ash cement paste (SFCP). An integrated simulation platform is adopted to achieve the performance assessment, in which the physicochemical and geochemical processes can be addressed, such as the hydration of cement particles, formation of micro-pore structure, multi-species migration and equilibria, activity effect, the thermodynamic balance between the matrix skeleton and pore solution. A comparison of experiment and simulation showed that the properties of SFCP from micro to macroscale are consistently associated and fairly explained through the integrated simulation platform for further practical realization.
AB - The shortage of river sand and fresh water for concrete production has become a severe issue, accompanied by a significant increase in infrastructural constructions, especially for coastal areas. Therefore, the possibility of utilizing seawater and sea sand as alternative raw materials for concrete components has attracted broad research interest in recent decades. This paper presents experimental, and simulation investigation to comprehensively study the material performance of seawater fly ash cement paste (SFCP). An integrated simulation platform is adopted to achieve the performance assessment, in which the physicochemical and geochemical processes can be addressed, such as the hydration of cement particles, formation of micro-pore structure, multi-species migration and equilibria, activity effect, the thermodynamic balance between the matrix skeleton and pore solution. A comparison of experiment and simulation showed that the properties of SFCP from micro to macroscale are consistently associated and fairly explained through the integrated simulation platform for further practical realization.
KW - Geochemical balance
KW - Hydration products
KW - Micro-pore structure
KW - Seawater cement paste
UR - http://www.scopus.com/inward/record.url?scp=85171741962&partnerID=8YFLogxK
U2 - 10.1016/j.jobe.2023.107802
DO - 10.1016/j.jobe.2023.107802
M3 - Journal article
AN - SCOPUS:85171741962
SN - 2352-7102
VL - 79
JO - Journal of Building Engineering
JF - Journal of Building Engineering
M1 - 107802
ER -