Molecular interfacial properties and engineering performance of conductive fillers in cementitious composites
Conductive fillers, such as graphite particles (GP), steel slags (SS), and ground granulated blast furnace slag (GGBS) have been widely utilized in designing electrically conductive cementitious composites (ECCC) for various applications, including traffic detection, structural health monitoring (SH...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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ELSEVIER
2022
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| Online Access: | http://purl.org/au-research/grants/arc/LP180100222 http://hdl.handle.net/20.500.11937/90819 |
| _version_ | 1848765437422075904 |
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| author | Sun, Junbo Wang, Yufei Li, K. Yao, X. Zhu, B. Wang, J. Dong, Q. Wang, Xiangyu |
| author_facet | Sun, Junbo Wang, Yufei Li, K. Yao, X. Zhu, B. Wang, J. Dong, Q. Wang, Xiangyu |
| author_sort | Sun, Junbo |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Conductive fillers, such as graphite particles (GP), steel slags (SS), and ground granulated blast furnace slag (GGBS) have been widely utilized in designing electrically conductive cementitious composites (ECCC) for various applications, including traffic detection, structural health monitoring (SHM), and pavement deicing. Owing to the complex working field, a comprehensive understanding of the role that the conductive fillers played in ECCC is essential for designing high-performance ECCC. In the present study, mechanical and conductivity experiments were conducted to explore the influences of these fillers on ECCC performances in strengths and electrical resistance. In addition, the reactive molecular dynamic (MD) simulation was firstly performed to quantify the interfacial properties of GP, SS, and GGBS in ECCC at the molecular level. Simulation results indicated that the chemical components of these conductive fillers dominate the atomic interfacial properties. Mineral components in SS or GGBS, especially Al2O3 and SiO2, led to a stronger interfacial bonding with cement in comparison to graphite in GP. At last, a hybrid mixing design of GP and SS was proposed in this study, balancing the mechanical and conductive performance of ECCC. |
| first_indexed | 2025-11-14T11:35:14Z |
| format | Journal Article |
| id | curtin-20.500.11937-90819 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:35:14Z |
| publishDate | 2022 |
| publisher | ELSEVIER |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-908192023-04-24T06:28:29Z Molecular interfacial properties and engineering performance of conductive fillers in cementitious composites Sun, Junbo Wang, Yufei Li, K. Yao, X. Zhu, B. Wang, J. Dong, Q. Wang, Xiangyu Science & Technology Technology Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Electrically conductive cementitious composites Molecular dynamic simulation Waste slag Compressive strength Flexural strength Electrical resistivity C-S-H SHEAR-STRENGTH HYDRATION DYNAMICS SLAG CONCRETE AGGREGATE ALGORITHM SILICA Conductive fillers, such as graphite particles (GP), steel slags (SS), and ground granulated blast furnace slag (GGBS) have been widely utilized in designing electrically conductive cementitious composites (ECCC) for various applications, including traffic detection, structural health monitoring (SHM), and pavement deicing. Owing to the complex working field, a comprehensive understanding of the role that the conductive fillers played in ECCC is essential for designing high-performance ECCC. In the present study, mechanical and conductivity experiments were conducted to explore the influences of these fillers on ECCC performances in strengths and electrical resistance. In addition, the reactive molecular dynamic (MD) simulation was firstly performed to quantify the interfacial properties of GP, SS, and GGBS in ECCC at the molecular level. Simulation results indicated that the chemical components of these conductive fillers dominate the atomic interfacial properties. Mineral components in SS or GGBS, especially Al2O3 and SiO2, led to a stronger interfacial bonding with cement in comparison to graphite in GP. At last, a hybrid mixing design of GP and SS was proposed in this study, balancing the mechanical and conductive performance of ECCC. 2022 Journal Article http://hdl.handle.net/20.500.11937/90819 10.1016/j.jmrt.2022.05.061 English http://purl.org/au-research/grants/arc/LP180100222 http://creativecommons.org/licenses/by-nc-nd/4.0/ ELSEVIER fulltext |
| spellingShingle | Science & Technology Technology Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Electrically conductive cementitious composites Molecular dynamic simulation Waste slag Compressive strength Flexural strength Electrical resistivity C-S-H SHEAR-STRENGTH HYDRATION DYNAMICS SLAG CONCRETE AGGREGATE ALGORITHM SILICA Sun, Junbo Wang, Yufei Li, K. Yao, X. Zhu, B. Wang, J. Dong, Q. Wang, Xiangyu Molecular interfacial properties and engineering performance of conductive fillers in cementitious composites |
| title | Molecular interfacial properties and engineering performance of conductive fillers in cementitious composites |
| title_full | Molecular interfacial properties and engineering performance of conductive fillers in cementitious composites |
| title_fullStr | Molecular interfacial properties and engineering performance of conductive fillers in cementitious composites |
| title_full_unstemmed | Molecular interfacial properties and engineering performance of conductive fillers in cementitious composites |
| title_short | Molecular interfacial properties and engineering performance of conductive fillers in cementitious composites |
| title_sort | molecular interfacial properties and engineering performance of conductive fillers in cementitious composites |
| topic | Science & Technology Technology Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Electrically conductive cementitious composites Molecular dynamic simulation Waste slag Compressive strength Flexural strength Electrical resistivity C-S-H SHEAR-STRENGTH HYDRATION DYNAMICS SLAG CONCRETE AGGREGATE ALGORITHM SILICA |
| url | http://purl.org/au-research/grants/arc/LP180100222 http://hdl.handle.net/20.500.11937/90819 |