The Mechanical Properties of Alkali-Activated Slag-Silica Fume Cement Pastes by Mixing Method
Source abstract
Abstract
Abstract The mixing method is the investigation of the characteristics of alkali-activated cement paste (AACP) with slag and silica fume (SF) of 1: 1. The basic mixing method is ASTM C305, which is defined as 1st-cycle. There are three factors considered in this experiment; (i) the addition of mixing time (2nd-cycle), (ii) the concentration of activator depending on the amount of mixing water, and (iii) the mixing sequence of slag and SF. It was found that the second cycle, the additional mixing time, had the effect of improving the mechanical properties. In addition, accelerated activation through the mixing of slag with a high concentration of alkali solution in the 1st-cycle increases the hydration products and decreases the porosity and increases the mechanical properties. Therefore, it was found that the change of the mixing method in the AACP composed of slag and SF 1: 1 has a great influence on the mechanical properties. As a result, the method of first mixing slag in aqueous solution of high alkali concentration in AASC mixed with slag and SF improves the mechanical properties.
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Research context
OpenAlex topics: Concrete and Cement Materials Research · Innovative concrete reinforcement materials · Magnesium Oxide Properties and Applications
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References (40)
Show source-provided references
1. Alanazi, H., Hu, J., & Kim, Y.-R. (2019). Effect of slag, silica fume, and metakaolin on properties and performance of alkali-activated fly ash cured at ambient temperature. Construction and Building Materials,197, 747–756.10.1016/j.conbuildmat.2018.11.172 ↗
2. Awoyera, P., & Adesina, A. (2019). A critical review on application of alkali activated slag as a sustainable composite binder. Case Studies in Construction Materials,11, e002668.10.1016/j.cscm.2019.e00268 ↗
3. Awoyera, P. O., Adesina, A., Sivakrishna, A., Gobinath, R., Rajesh Kumar, K., & Srinivas, A. (2019). Alkali activated binders: Challenges and opportunities. Materials Today: Proceedings. https://doi.org/10.1016/j.matpr.2019.08.199.10.1016/j.matpr.2019.08.199 ↗
4. Aydin, S. (2013). A ternary optimisation of mineral additives of alkali activated cement mortars. Construction and Building Materials,43, 131–138.10.1016/j.conbuildmat.2013.02.005 ↗
5. Aydın, S., & Baradan, B. (2013). The effect of fiber properties on high performance alkali-activated slag/silica fume mortars. Composites: Part B,45, 63–69.10.1016/j.compositesb.2012.09.080 ↗
6. Bakolas, A., Aggelakopoulou, E., Moropoulou, A., & Anagnostopoulou, S. (2006). Evaluation of pozzolanic activity and physicomechanical characteristics in metakaolin-lime pastes. Journal of Thermal Analysis and Calorimetry,84, 157–163.10.1007/s10973-005-7262-y ↗
7. Behfarnia, K., & Rostami, M. (2017). Effects of micro and nanoparticles of SiO2 on the permeability of alkali activated slag concrete. Construction and Building Materials,131, 205–213.10.1016/j.conbuildmat.2016.11.070 ↗
8. Bernal, S. A., & Provis, J. L. (2014). Durability of alkali-activated materials: Progress and perspectives. Journal of American Ceramic Society,97, 997–1008.10.1111/jace.12831 ↗
9. Berodier, E., & Scrivener, K. (2014). Understanding the filler effect on the uncleation and growth of C-S–H. Journal of American Ceramic Society,94, 3764–3773.10.1111/jace.13177 ↗
10. Burciaga-Díaz, O., & Escalante-García, J. I. (2013). Structure, Mechanisms of reaction, and strength of an alkali-activated blast-furnace slag. Journal of American Ceramic Society,96, 3939–3948.10.1111/jace.12620 ↗
11. Cheah, C. B., Tan, L. E., & Ramli, M. (2019). The engineering properties and microstructure of sodium carbonate activated fly ash/slag blended mortars with silica fume. Composites: Part B,160, 558–572.10.1016/j.compositesb.2018.12.056 ↗
12. Collins, F., & Sanjayan, J. G. (1999). Effects of ultra-fine materials on workability and strength of concrete containing alkali-activated slag as the binder. Cement and Concrete Research,29, 459–462.10.1016/S0008-8846(98)00237-3 ↗
13. Demirboğa, R., Türkmen, İ., & Karakoç, M. B. (2004). Relationship between ultrasonic velocity and compressive strength for high-volume mineral-admixtured concrete. Cement and Concrete Research,34, 2329–2336.10.1016/j.cemconres.2004.04.017 ↗
14. Diamond, S., & Sahu, S. (2006). Densified silica fume: particle size and dispersion in concrete. Materials and Structures,39, 849–859.10.1617/s11527-006-9087-y ↗
15. Duan, P., Shui, Z., Chen, W., & Shen, C. (2013). Effects of metakaolin, silica fume and slag on pore structure, interfacial transition zone and compressive strength of concrete. Construction and Building Materials,44, 1–6.10.1016/j.conbuildmat.2013.02.075 ↗
16. Gao, X., Yu, Q. L., & Brouwers, H. J. H. (2015). Characterization of alkali activated slag-fly ash blends containing nano-silica. Construction and Building Materials,98, 397–406.10.1016/j.conbuildmat.2015.08.086 ↗
17. Gülşan, M. E., Alzeebaree, R., Rasheed, A. A., Niş, A., & Kurtoğlu, A. E. (2019). Development of fly ash/slag based self-compacting geopolymer concrete using nano-silica and steel fiber. Construction and Building Materials,211, 271–283.10.1016/j.conbuildmat.2019.03.228 ↗
18. Haha, M. B., Le Saout, G., Winnefeld, F., & Lothenbach, B. (2011). Influence of activator type on hydration kinetics, hydrate assemblage and microstructural development of alkali activated blast-furnace slags. Cement and Concrete Research,41, 301–310.10.1016/j.cemconres.2010.11.016 ↗
19. Haha, M. N., Lothenbach, B., Le Saout, G., & Winnefeld, F. (2012). Influence of slag chemistry on the hydration of alkali-activated blast-furnace slag—Part II: Effect of Al2O3. Cement and Concrete Research,42, 74–83.10.1016/j.cemconres.2011.08.005 ↗
20. Jeon, D., Jun, Y., Jeong, Y., & Oh, J. E. (2015). Microstructural and strength improvements through the use of Na2CO3 in a cementless Ca(OH)2-activated Class F fly ash system. Cement and Concrete Research,67, 215–225.10.1016/j.cemconres.2014.10.001 ↗
21. Li, Z., Pan, Z., Liu, Y., He, L., Duan, W., Collins, F., et al. (2014). Effects of mineral admixtures and lime on disintegration of alkali-activated slag exposed to 50 °C. Construction and Building Materials,70, 254–261.10.1016/j.conbuildmat.2014.07.101 ↗
22. Mindess, S., Young, J. F., & Darwin, D. (2003). Concrete (2nd ed.). Upper Saddle River: Prentice Hall.
23. Mohammed, T. U., & Rahman, M. N. (2016). Effect of types of aggregate and sand-to-aggregate volume ratio on UPV in concrete. Construction and Building Materials,125, 832–841.10.1016/j.conbuildmat.2016.08.102 ↗
24. Nochaiya, T., Wongkeo, W., & Chaipanich, A. (2010). Utilization of fly ash with silica fume and properties of Portland cement-fly ash-silica fume concrete. Fuel,89, 768–774.10.1016/j.fuel.2009.10.003 ↗
25. Omer, S. A., Demirboga, R., & Khushefati, W. H. (2015). Relationship between compressive strength and UPV of GGBFS based geopolymer mortars exposed to elevated temperatures. Construction and Building Materials,94, 189–195.10.1016/j.conbuildmat.2015.07.006 ↗
26. Palacios, M., & Puertas, F. (2011). Effectiveness of mixing time on hardened properties of waterglass-activated slag pastes and mortars. ACI Materials Journal,108(1), 73–78.
27. Provis, J. L., Palomo, A., & Shi, C. (2015). Advances in understanding alkali-activated materials. Cement and Concrete Research,78, 110–125.10.1016/j.cemconres.2015.04.013 ↗
28. Ramezanianpour, A. A., & Moeini, M. A. (2018). Mechanical and durability properties of alkali activated slag coating mortars containing nanosilica and silica fume. Construction and Building Materials,163, 611–621.10.1016/j.conbuildmat.2017.12.062 ↗
29. Rashad, A. M. (2013). A comprehensive overview about the influence of different additives on the properties of alkali-activated slag—A guide for civil engineer. Construction and Building Materials,47, 29–55.10.1016/j.conbuildmat.2013.04.011 ↗
30. Rashad, A. M., & Khalil, M. H. (2013). A preliminary study of alkali-activated slag blended with silica fume under the effect of thermal loads and thermal shock cycles. Construction and Building Materials,40, 522–532.10.1016/j.conbuildmat.2012.10.014 ↗
31. Rossen, J. E., Lothenbach, B., & Scrivener, K. L. (2015). Composition of C-S–H in pastes with increasing levels of silica fume addition. Cement and Concrete Research,75, 14–22.10.1016/j.cemconres.2015.04.016 ↗
32. Rostami, M., & Behafarnia, K. (2017). The effect of silica fume on durability of alkali activated slag concrete. Construction and Building Materials,134, 262–268.10.1016/j.conbuildmat.2016.12.072 ↗
33. Sun, J., Zhang, Z., Zhuang, S., & Hw, W. (2020). Hydration properties and microstructure characteristics of alkali–activated steel slag. Construction and Building Materials,e241, 118141.10.1016/j.conbuildmat.2020.118141 ↗
34. Uysal, M., Al-mashhadani, M. M., Aygörmez, Y., & Canpolat, O. (2018). Effect of using colemanite waste and silica fume as partial replacement on the performance of metakaolin-based geopolymer mortars. Construction and Building Materials,176, 271–282.10.1016/j.conbuildmat.2018.05.034 ↗
35. Vassileva, C. G., & Vassilev, S. V. (2005). Behaviour of inorganic matter during heating of Bulgarian coals: 1. Lignites. Fuel Processing Technology,86, 1297–1333.10.1016/j.fuproc.2005.01.024 ↗
36. Wang, S. D., & Scrivener, K. L. (1995). Hydration products of alkali activated slag cement. Cement and Concrete Research,25, 561–571.10.1016/0008-8846(95)00045-E ↗
37. Wetzal, A., & Mddendorf, B. (2019). Influence of silica fume on properties of fresh and hardened ultra-high performance concrete based on alkali-activated slag. Cement & Concrete Composites,100, 53–59.10.1016/j.cemconcomp.2019.03.023 ↗
38. Wongkeo, W., Thongsanitgarn, P., & Chaipanich, A. (2012). Compressive strength and drying shrinkage of fly ash-bottom ash-silica fume multi-blended cement mortars. Materials and Design,36, 655–662.10.1016/j.matdes.2011.11.043 ↗
39. Zhang, Q., Ji, T., Yang, Z., Wang, C., & Wu, H. (2020). Influence of different activators on microstructure and strength of alkali-activated nickel slag cementitious materials. Construction and Building Materials,235, 117449.10.1016/j.conbuildmat.2019.117449 ↗
40. Zhang, M. H., & Li, H. (2011). Pore structure and chloride permeability of concrete containing nano-particles for pavement. Construction and Building Materials,25, 608–616.10.1016/j.conbuildmat.2010.07.032 ↗