A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Algorithmic Mix Design for 3D Printing Materials
Additive manufacturing technology aims to revolutionize the construction sector. Researchers are looking for the optimum materials to use in mix design to control the fresh and final properties of the mix. Those properties are contradictory to each other, and finding the optimal mix design has always been a challenge. Developing an optimization tool that considers trade-offs among a variety of competing objectives can improve the mix design process. In this study, the mortars contained combinations of multiple factors, including the cement type, sand type, water content, and admixtures. Three properties investigated are flowability, buildability, and compressive strength. The buildability was assessed by measuring the shear stress with the direct shear apparatus based on the ASTM D3080. The workability was acquired by measuring the flow spread of the mortar mixes following the ASTM C1437, and the compressive strength following the ASTM C109. A multiobjective Pareto optimization method is used to improve the properties simultaneously. Feedforward neural networks were used to predict the properties of new mixes. The genetic algorithm was used to optimize the network parameters. This approach yields promising capability to improve the competing objectives of the mortar mixes by considerably reducing the time and the number of experiments.
Algorithmic Mix Design for 3D Printing Materials
Additive manufacturing technology aims to revolutionize the construction sector. Researchers are looking for the optimum materials to use in mix design to control the fresh and final properties of the mix. Those properties are contradictory to each other, and finding the optimal mix design has always been a challenge. Developing an optimization tool that considers trade-offs among a variety of competing objectives can improve the mix design process. In this study, the mortars contained combinations of multiple factors, including the cement type, sand type, water content, and admixtures. Three properties investigated are flowability, buildability, and compressive strength. The buildability was assessed by measuring the shear stress with the direct shear apparatus based on the ASTM D3080. The workability was acquired by measuring the flow spread of the mortar mixes following the ASTM C1437, and the compressive strength following the ASTM C109. A multiobjective Pareto optimization method is used to improve the properties simultaneously. Feedforward neural networks were used to predict the properties of new mixes. The genetic algorithm was used to optimize the network parameters. This approach yields promising capability to improve the competing objectives of the mortar mixes by considerably reducing the time and the number of experiments.
Algorithmic Mix Design for 3D Printing Materials
Lecture Notes in Civil Engineering
Gupta, Rishi (editor) / Sun, Min (editor) / Brzev, Svetlana (editor) / Alam, M. Shahria (editor) / Ng, Kelvin Tsun Wai (editor) / Li, Jianbing (editor) / El Damatty, Ashraf (editor) / Lim, Clark (editor) / Sergis, Vasileios (author) / Ouellet-Plamondon, Claudiane (author)
Canadian Society of Civil Engineering Annual Conference ; 2022 ; Whistler, BC, BC, Canada
Proceedings of the Canadian Society of Civil Engineering Annual Conference 2022 ; Chapter: 61 ; 915-922
2024-02-06
8 pages
Article/Chapter (Book)
Electronic Resource
English
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