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Tang J, Gao C, Li Y, Xu J, Huang J, Xu D, Hu Z, Han F, Liu J. A Review on Multi-Scale Toughening and Regulating Methods for Modern Concrete: From Toughening Theory to Practical Engineering Application. RESEARCH (WASHINGTON, D.C.) 2024; 7:0518. [PMID: 39726918 PMCID: PMC11670900 DOI: 10.34133/research.0518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2024] [Revised: 10/10/2024] [Accepted: 10/12/2024] [Indexed: 12/28/2024]
Abstract
Concrete is the most widely used and highest-volume basic material in the word today. Enhancing its toughness, including tensile strength and deformation resistance, can boost the structural load-bearing capacity, minimize cracking, and decrease the amount of concrete and steel required in engineering projects. These advancements are crucial for the safety, durability, energy efficiency, and emission reduction of structural engineering. This paper systematically summarized the brittle characteristics of concrete and the various structural factors influencing its performance at multiple scales, including molecular, nano-micro, and meso-macro levels. It outlines the principles and impacts of concrete toughening and crack prevention from both internal and external perspectives, and discusses recent advancements and engineering applications of toughened concrete. In situ polymerization and fiber reinforcement are currently practical and highly efficient methods for enhancing concrete toughness. These techniques can boost the matrix's flexural strength by 30% and double its fracture energy, achieving an ultimate tensile strength of up to 20 MPa and a tensile strain exceeding 0.6%. In the future, achieving breakthroughs in concrete toughening will probably rely heavily on the seamless integration and effective synergy of multi-scale toughening methods.
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Affiliation(s)
- Jinhui Tang
- School of Materials Science and Engineering, Jiangsu Key Laboratory of Construction Materials,
Southeast University, Nanjing, China
| | - Chang Gao
- School of Materials Science and Engineering, Jiangsu Key Laboratory of Construction Materials,
Southeast University, Nanjing, China
| | - Yi Li
- School of Materials Science and Engineering, Jiangsu Key Laboratory of Construction Materials,
Southeast University, Nanjing, China
| | - Jie Xu
- School of Materials Science and Engineering, Jiangsu Key Laboratory of Construction Materials,
Southeast University, Nanjing, China
| | - Jiale Huang
- School of Materials Science and Engineering, Jiangsu Key Laboratory of Construction Materials,
Southeast University, Nanjing, China
| | - Disheng Xu
- School of Materials Science and Engineering, Jiangsu Key Laboratory of Construction Materials,
Southeast University, Nanjing, China
| | - Zhangli Hu
- School of Materials Science and Engineering, Jiangsu Key Laboratory of Construction Materials,
Southeast University, Nanjing, China
| | - Fangyu Han
- School of Materials Science and Engineering, Jiangsu Key Laboratory of Construction Materials,
Southeast University, Nanjing, China
- State Key Laboratory of High Performance Civil Engineering Materials, Jiangsu Sobute New Materials Co. Ltd., Nanjing, China
| | - Jiaping Liu
- School of Materials Science and Engineering, Jiangsu Key Laboratory of Construction Materials,
Southeast University, Nanjing, China
- State Key Laboratory of High Performance Civil Engineering Materials, Jiangsu Sobute New Materials Co. Ltd., Nanjing, China
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Robinson N, Nasharuddin R, Luo G, Fourie A, Fridjonsson EO, Johns ML. Pore Structure Evolution of Cemented Paste Backfill Observed with Two-Dimensional NMR Relaxation Correlation Measurements. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01819] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Neil Robinson
- Department of Chemical Engineering, The University of Western Australia, 35 Stirling Highway, Perth, Western Australia 6009, Australia
| | - Razyq Nasharuddin
- Department of Chemical Engineering, The University of Western Australia, 35 Stirling Highway, Perth, Western Australia 6009, Australia
| | - Ganhua Luo
- Department of Civil, Environment and Mining Engineering, The University of Western Australia, 35 Stirling Highway, Perth, Western Australia 6009, Australia
| | - Andy Fourie
- Department of Civil, Environment and Mining Engineering, The University of Western Australia, 35 Stirling Highway, Perth, Western Australia 6009, Australia
| | - Einar O. Fridjonsson
- Department of Chemical Engineering, The University of Western Australia, 35 Stirling Highway, Perth, Western Australia 6009, Australia
| | - Michael L. Johns
- Department of Chemical Engineering, The University of Western Australia, 35 Stirling Highway, Perth, Western Australia 6009, Australia
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