SHRINKAGE BEHAVIOR OF AN ECO-FRIENDLY ENGINEERED CEMENTITIOUS COMPOSITE
Abstract
The purpose of the present research is to assess the impact of foundry sand (FS) and cement kiln dust (CKD) on the autogenous shrinkage, drying and total shrinkage of engineered cementitious composites (ECCs) over 100 d. Additionally, the pore sizes and their distribution in the developed ECC system were assessed through the BJH adsorption technique. The findings showed that the pore structure was refined continuously over time. This indicates that the CKD-modified ECC mixes demonstrated decreased autogenous shrinkage at the early and later ages of the 100-d period, although the total shrinkage, developed during the later stages, was comparable to the CKD/FS mixes and conventional ECCs. Specimens with 30 % FS and 15 % CKD inclusions showed significantly fewer medium capillary holes and more gel pores. As the pores in a CKD-modified ECC system are smaller than in the traditional ECC, the modified ECC specimens are denser and show a lower loss of water.
References
1. Z. Lin, T. Kanda, V. Li, On Interface Property Characterization and Performance of Fiber Reinforced Cementitious Composites, Journal of Concrete Science and Engineering, 1 (1999), 173?184, doi:https://hdl.handle.net/2027.42/84718
2. D. Zhang, H. Wu, V. C. Li, B. R. Ellis, Autogenous healing of Engineered Cementitious Composites (ECC) based on MgO-fly ash binary system activated by carbonation curing, Construction and Building Materials, 238 (2020), 117672, https://doi.org/10.1016/j.conbuildmat.2019.117672
3. X. Huang, R. Ranade, W. Ni, V. C. Li, On the use of recycled tire rubber to develop low E-modulus ECC for durable concrete repairs, Construction and Building Materials, 46 (2013), 134?141, https://doi.org/10.1016/j.conbuildmat.2013.04.027
4. N. T. Sithole, N. T. Tsotetsi, T. Mashifana, M. Sillanpää, Alternative cleaner production of sustainable concrete from waste foundry sand and slag, Journal of Cleaner Production, 336 (2022), 130399, https://doi.org/10.1016/j.jclepro.2022.130399
5. T. Ramos, A. M. Matos, B. Schmidt, J. Rio, J. Sousa-Coutinho, Granitic quarry sludge waste in mortar: Effect on strength and durability, Construction and Building Materials, 47 (2013), 1001?1009, https://doi.org/10.1016/j.conbuildmat.2013.05.098
6. L. Fd. Santos, R. S. Magalh?es, S. S. Barreto, G. T. A Santos, F. F. G. de Paiva, A. E. de Souza, S. R. Teixeira, Characterization and reuse of spent foundry sand in the production of concrete for interlocking pavement, Journal of Building Engineering, 36 (2021), 102098, https://doi.org/10.1016/j.jobe.2020.102098
7. Y. Aggarwal, R. Siddique, Microstructure and properties of concrete using bottom ash and waste foundry sand as partial replacement of fine aggregates, Construction and Building Materials, 54 (2014), 210?223, https://doi.org/10.1016/j.conbuildmat.2013.12.051
8. M. A. El-Mohsen, A. M. Anwar, I. A. Adam, Mechanical Properties of Self-Consolidating Concrete Incorporating Cement Kiln Dust, HBRC Journal, 11 (2015), 1?6, https://doi.org/10.1016/j.hbrcj.2014.02.007
9. K. B. Najim, Z. S. Mahmod, A-K. M. Atea, Experimental investigation on using Cement Kiln Dust (CKD) as a cement replacement material in producing modified cement mortar, Construction and Building Materials, 55 (2014), 5?12, https://doi.org/10.1016/j.conbuildmat.2014.01.015
10. A. Abdalla, A. Salih, Microstructure and chemical characterizations with soft computing models to evaluate the influence of calcium oxide and silicon dioxide in the fly ash and cement kiln dust on the compressive strength of cement mortar, Resources, Conservation & Recycling Advances, 15 (2022), 200090, https://doi.org/10.1016/j.rcradv.2022.200090
11. J. Al-Rezaiqi, A. Alnuaimi, A. W. Hago, Efficiency factors of burnt clay and cement kiln dust and their effects on properties of blended concrete, Applied Clay Science, 157 (2018), 51?64, https://doi.org/10.1016/j.clay.2018.01.040
12. F. Sayahi, M. Emborg, H. Hedlund, Y. Ghasemi, Experimental validation of a novel method for estimating the severity of plastic shrinkage cracking in concrete, Construction and Building Materials, 339 (2022), 127794, https://doi.org/10.1016/j.conbuildmat.2022.127794
13. Z. Lyu, Y. Guo, Z. Chen, A. Shen, X. Qin, J. Yang, M. Zhao, Z. Wang, Research on shrinkage development and fracture properties of internal curing pavement concrete based on humidity compensation, Construction and Building Materials, 203 (2019), 417?431, https://doi.org/10.1016/j.conbuildmat.2019.01.115
14. G. Ke, J. Zhang, Y. Liu, Shrinkage characteristics of calcium sulphoaluminate cement concrete, Construction and Building Materials, 337 (2022), 127627, https://doi.org/10.1016/j.conbuildmat.2022.127627
15. M. Sun, P. Visintin, T. Bennett, The effect of specimen size on autogenous and total shrinkage of ultra-high performance concrete (UHPC), Construction and Building Materials, 327 (2022), 126952, https://doi.org/10.1016/j.conbuildmat.2022.126952
16. M-Y. Xuan, X-Y, Wang, Autogenous shrinkage reduction and strength improvement of ultra-high-strength concrete using belite-rich Portland cement, Journal of Building Engineering, 59 (2022), 105107, https://doi.org/10.1016/j.jobe.2022.105107
17. L. Tian, M. Jiao, H. Fu, P. Wang, H. Zhao, W. Zuo, Effect of magnesia expansion agent with different activity on mechanical property, autogenous shrinkage and durability of concrete, Construction and Building Materials, 335 (2022), 127506, https://doi.org/10.1016/j.conbuildmat.2022.127506
18. M. Maslehuddin, O. S. B. Al-Amoudi, M. K. Rahman, M. R. Ali, M. S. Barry, Properties of cement kiln dust concrete, Construction and Building Materials, 23 (2009), 2357?2361, https://doi.org/10.1016/j.conbuildmat.2008.11.002
19. Z. Lv, C. Liu, C. Zhu, G. Bai, H. Qi, Experimental Study on a Prediction Model of the Shrinkage and Creep of Recycled Aggregate Concrete, Applied Sciences, 9 (2019), 4322, doi:10.3390/app9204322
20. F. Collins, J. Sanjayan, Effect of pore size distribution on drying shrinking of alkali-activated slag concrete, Cement and Concrete Research, 30 (2000), 1401?1406, doi:10.1016/S0008-8846(00)00327-6
21. Z. Wang, P. Sun, J. Zuo, C. Liu, Y. Han, Z. Zhang, Long-term properties and microstructure change of engineered cementitious composites subjected to high sulfate coal mine water in drying-wetting cycles, Materials & Design, 203 (2021), 109610, https://doi.org/10.1016/j.matdes.2021.109610
22. Y. Han, Y. Qin, Y. Wang, X. Zhang, The effect of different ages and water-binder ratios on the mechanical properties of circulating fluidized bed combustion desulfurization slag cement-soil, Case Studies in Construction Materials, 17 (2022), e01660, https://doi.org/10.1016/j.cscm.2022.e01660
23. H. Zhang, Y-Y. Wang, D. E. Lehman, Y. Geng, Autogenous-shrinkage model for concrete with coarse and fine recycled aggregate, Cement and Concrete Composites, 111 (2020), 103600, https://doi.org/10.1016/j.cemconcomp.2020.103600
24. Z-L. Jiang, Y-J. Pan, J-F. Lu, Y-C. Wang, Pore structure characterization of cement paste by different experimental methods and its influence on permeability evaluation, Cement and Concrete Research, 159 (2022), 106892, https://doi.org/10.1016/j.cemconres.2022.106892
