Concepts and Functions in the Building Engineering

Concepts and Functions in the Building Engineering

Application of Utility Function for Optimization and Ranking of Concrete Mix Designs

Document Type : مقاله پژوهشی

Authors
Alireza Rasekhi Sahneh 1
Abuzar Masoumi 2
1 Faculty member, Civil Engineering Department, Qeshm Branch, Islamic Azad University, Qeshm, Iran.
2 FFF
Abstract
Calcium aluminate cement is considered a special cement due to its unique structure and the presence of at least 40% aluminum oxide. It is highly durable under severe environmental conditions. However, challenges such as high cost and more importantly, sudden reduction in strength have limited its use as a standalone cement without structural modifications through alternative materials. The wide variety of these materials and their diverse effects on the various properties of this cement increase the number of variables, often causing confusion among engineers when selecting materials in different proportions. In this study, 20 mix designs were prepared with replacement percentages of 40%, 25%, 15%, 5%, and 60% of alternative materials including zeolite, slag, pumice, and limestone powder, and compared with a control mix. Subsequently, using the utility function, a concept from mathematics, the mixes were ranked from technical and economic perspectives.
Keywords
Utility Function
Ranking
Calcium Aluminate Concrete
Technical Analysis
Economic Analysis

1. Mostafa, N. Y., et al. (2012). Chemical activation of calcium aluminate cement composites cured at elevated temperature. Cement and Concrete Composites 34(10): 1187-1193.

2. Johari, M. M., Brooks, J. J., Kabir, S., & Rivard, P. (2011). Influence of supplementary cementitious materials on engineering properties of high strength concrete. Construction and Building Materials, 25(5), 2639-2648.

3. Hillemeier, B., &  Elrahman, M. A. (2014). Combined effect of fine fly ash and packing density on the properties of high performance concrete: An experimental approach. Construction and Building Materials, 58, 225-233.

4. Wu, K., Han, H., Rößler, C., Xu, L., & Ludwig, H. M. (2021). Rice hush ash as supplementary cementitious material for calcium aluminate cement–Effects on strength and hydration. Construction and Building Materials, 302, 124198.

5.Zhang, Y., Ye, G., Gu, W., Ding, D., Chen, L., & Zhu, L. (2018). Conversion of calcium aluminate cement hydrates at 60° C with and without water. Journal of the American Ceramic Society, 101(7), 2712-2717.

6.Dyer T.(2017). Influence of cement type on resistance to attack from two carboxylic acids. Cement and Concrete Composites. 1;83:20-35.

7. Tang, J., Ma, W., Gu, Z., Zhang, Y., Fang, D., & Zhao, L. (2023). Study on mechanical properties and microstructure of aluminate cement-based materials incorporating recycled brick powder after exposure to elevated temperatures. Journal of Building Engineering, 106472.

8. Li, X., Lv, X., Zhou, X., Meng, W., & Bao, Y. (2022). Upcycling of waste concrete in eco-friendly strain-hardening cementitious composites: Mixture design, structural performance, and life-cycle assessment. Journal of Cleaner Production, 330, 129911.

9. Rasekhi Sahneh, A. R., Dashti Rahmatabadi, M. A., Madani, H., & Dehghan Manshadi, H. (2023). A Comprehensive Investigation on the Influence of Zeolite, Pumice, and Limestone Powder on the Characteristics of Eco‐Friendly Calcium Aluminate Cement Mixes. Advances in Materials Science and Engineering, 2023(1), 1433612.

10. W.F. Smith., Experimental design for formulation,American Statistical Association. (2005).

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