Effects of mix-design variables on the workability, rheology and stability of self-consolidating concrete
Keywords:Self-consolidating concrete, workability, rheology, stability, mix-design.
This study investigates the effects of basic mix design variables such as water/cement ratio (w/c), slump flow, coarse-to-total aggregate ratio (CA/TA), and maximum aggregate size (Dmax) on the main characteristics of self-consolidating concrete. The w/c of the mixtures was either 0.42 or 0.50. The CA/TA ranged between 0.45 and 0.53. Slump flow was adjusted to 550, 650 or 720 ±20 mm by varying the superplasticizer content. Dmax was varied as 10, 15 and 20 mm. V-funnel, L-box, rheometer, sieve segregation tests and a new test method, recently developed by the authors, for dynamic segregation resistance were performed. The effect of each variable on the test results were effectively summarized in a table. Increasing the w/c, CA/TA and Dmax decreased the superplasticizer demand and increased the flowability. When the slump flow, w/c and CA/TA were higher, viscosity was found to be lower. Higher values of CA/TA and Dmax were found to reduce the passing ability. Increasing the slump flow (or superplasticizer content), CA/TA and Dmax disturbed the stability. Generally, the effects of w/c and slump flow on the SCC characteristics were more pronounced when compared to those of CA/TA and Dmax. Good correlations were obtained between several test results.
ACI 237 R. (2007). Self-consolidating concrete ACI 237 R. In Mi, Usa.
Aïssoun, B. M., Hwang, S. D., & Khayat, K. H. (2016). Influence of aggregate characteristics on workability of superworkable concrete. Materials and Structures/Materiaux et Constructions, 49(1–2), 597–609. https://doi.org/10.1617/s11527-015-0522-9
Alami, M. M., Erdem, T. K., & Khayat, K. H. (2016). Development of a New Test Method to Evaluate Dynamic Stability of Self-Consolidating Concrete. SCC2016-8th International RILEM Symposium on Self-Compacting Concrete, 113–122. Washington D.C.
Artigas, V. F., Positieri, M. J., Quintana, M. V., Oshiro, Á., & Cortez, R. (2021). Self-compacting mortars with mineral additions : perlite and lime- stone filler. Revista de La Construcción, 20(3), 479–490.
Assaad, J., Khayat, K. H., & Daczko, J. (2004). Evaluation of static stability of self-consolidating concrete. ACI Materials Journal, 101(3), 207–215. https://doi.org/10.14359/13116
Bartos, P. J. ., Sonebi, M., & Tamimi, A. . (2002). Workability and Rheology of Fresh Concrete: Compendium of Test. RILEM Report - TC145 WSM, (January 2002), 57–60.
Benaicha, M., Hafidi Alaoui, A., Jalbaud, O., & Burtschell, Y. (2019). Dosage effect of superplasticizer on self-compacting concrete: Correlation between rheology and strength. Journal of Materials Research and Technology, 8(2), 2063–2069. https://doi.org/10.1016/j.jmrt.2019.01.015
Bouziani, T. (2013). Assessment of fresh properties and compressive strength of self-compacting concrete made with different sand types by mixture design modelling approach. Construction and Building Materials, 49, 308–314. https://doi.org/10.1016/j.conbuildmat.2013.08.039
Bui, V. K., Montgomery, D., Hinczak, I., & Turner, K. (2002). Rapid testing method for segregation resistance of self-compacting concrete. Cement and Concrete Research, 32(9), 1489–1496. https://doi.org/10.1016/S0008-8846(02)00811-6
Chia, K. S., & Zhang, M. H. (2004). Effect of chemical admixtures on rheological parameters and stability of fresh lightweight aggregate concrete. Magazine of Concrete Research, 56(8), 465–473. https://doi.org/10.1680/macr.2004.56.8.465
Domone, P. L. (2006). Self-compacting concrete: An analysis of 11 years of case studies. Cement and Concrete Composites, 28(2), 197–208. https://doi.org/10.1016/j.cemconcomp.2005.10.003
EFNARC. (2005). The European Guidelines for Self-Compacting Concrete. The European Guidelines for Self Compacting Concrete, (May), 63. Retrieved from http://www.efnarc.org/pdf/SCCGuidelinesMay2005.pdf
El-Chabib, H., & Nehdi, M. (2006). Effect of mixture design parameters on segregation of self-consolidating concrete. ACI Materials Journal, 103(5), 374–383. https://doi.org/10.14359/18160
Erdem, T. K., Khayat, K. H., & Yahia, A. (2009). Correlating rheology of self-consolidating concrete to corresponding concrete-equivalent mortar. ACI Materials Journal, 106(2), 154–160. https://doi.org/10.14359/56462
Esmaeilkhanian, B., Khayat, K. H., Yahia, A., & Feys, D. (2014). Effects of mix design parameters and rheological properties on dynamic stability of self-consolidating concrete. Cement and Concrete Composites, 54, 21–28. https://doi.org/10.1016/j.cemconcomp.2014.03.001
Felekoǧlu, B., Türkel, S., & Baradan, B. (2007). Effect of water/cement ratio on the fresh and hardened properties of self-compacting concrete. Building and Environment, 42(4), 1795–1802. https://doi.org/10.1016/j.buildenv.2006.01.012
Ferraris, C., Larrard, F., & Martys, N. (2001). Fresh concrete rheology: recent developments. Materials Science of Concrete, VI, 215–241.
Hu, J., & Wang, K. (2011). Effect of coarse aggregate characteristics on concrete rheology. Construction and Building Materials, 25(3), 1196–1204. https://doi.org/10.1016/j.conbuildmat.2010.09.035
Jiao, D., Shi, C., Yuan, Q., An, X., Liu, Y., & Li, H. (2017). Effect of constituents on rheological properties of fresh concrete-A review. Cement and Concrete Composites, 83, 146–159. https://doi.org/10.1016/j.cemconcomp.2017.07.016
Khayat, K. H., Ghezal, A., & Hadriche, M. S. (2000). Utility of statistical models in proportioning self-consolidating concrete. Materials and Structures/Materiaux et Constructions, 33(5), 338–344. https://doi.org/10.1007/bf02479705
Khayat, K H, Hu, C., & Laye, J. M. (2000). Influence of aggregate Grain-Size Distribution on Workability of Self-Consolidating Concrete. International Symposium on High Performance Concrete - Workability, Strength and Durability, 1(May), 641–658.
Khayat, Kamal H., Assaad, J., & Daczko, J. (2004). Comparison of field-oriented test methods to assess dynamic stability of self-consolidating concrete. ACI Materials Journal, 101(2), 168–176. https://doi.org/10.14359/13066
Kim, J. H., Noemi, N., & Shah, S. P. (2012). Effect of powder materials on the rheology and formwork pressure of self-consolidating concrete. Cement and Concrete Composites, 34(6), 746–753. https://doi.org/10.1016/j.cemconcomp.2012.02.016
Koehler, E., & Fowler, D. (2004). Development of a Portable rheometer for fresh Portland cement concrete. International Center of Aggregates Research, 321. Retrieved from http://www.icar.utexas.edu/publications/105/105-3F.pdf
Koehler, E. P., & Fowler, D. W. (2007). Final Report ICAR Project 108: Aggregates in Self-Consolidating Concrete. 362.
Libre, N. A., Khoshnazar, R., & Shekarchi, M. (2010). Relationship between fluidity and stability of self-consolidating mortar incorporating chemical and mineral admixtures. Construction and Building Materials, 24(7), 1262–1271. https://doi.org/10.1016/j.conbuildmat.2009.12.009
Long, W. J., Lemieux, G., Hwang, S. D., & Khayat, K. H. (2012). Statistical models to predict fresh and hardened properties of self-consolidating concrete. Materials and Structures/Materiaux et Constructions, 45(7), 1035–1052. https://doi.org/10.1617/s11527-011-9815-9
Ma, K., Feng, J., Long, G., Xie, Y., & Chen, X. (2017). Improved mix design method of self-compacting concrete based on coarse aggregate average diameter and slump flow. Construction and Building Materials, 143, 566–573. https://doi.org/10.1016/j.conbuildmat.2017.03.142
Okamura, H., & Ozawa, K. (1994). Self-compactable high performance concrete in Japan. ACI International Workshop on High Performance Concrete, 31–44.
Panesar, D. K., & Shindman, B. (2012). The effect of segregation on transport and durability properties of self consolidating concrete. Cement and Concrete Research, 42(2), 252–264. https://doi.org/10.1016/j.cemconres.2011.09.011
Reinhardt, H. W., & Wüstholz, T. (2006). About the influence of the content and composition of the aggregates on the rheological behaviour of self-compacting concrete. Materials and Structures/Materiaux et Constructions, 39(7), 683–693. https://doi.org/10.1617/s11527-006-9102-3
Saleh Ahari, R., Erdem, T. K., & Ramyar, K. (2015). Time-dependent rheological characteristics of self-consolidating concrete containing various mineral admixtures. Construction and Building Materials, 88, 134–142. https://doi.org/10.1016/j.conbuildmat.2015.04.015
Shen, L., Jovein, H. B., & Wang, Q. (2016). Correlating aggregate properties and concrete rheology to dynamic segregation of self-consolidating concrete. Journal of Materials in Civil Engineering, 28(1), 04015067.
Shen, L., Struble, L., & Lange, D. (2009). Modeling dynamic segregation of self-consolidating concrete. ACI Materials Journal, 106(4), 375–380. https://doi.org/10.14359/56658
Silva, Y. F., Delvasto, S., Izquierdo, S., & Araya-Letelier, G. (2021). Short and long-term physical and mechanical characterization of self-compacting concrete made with masonry and concrete residue. Construction and Building Materials, 312(October), 125382. https://doi.org/10.1016/j.conbuildmat.2021.125382
Struble, L., Szecsy, R., Lei, W.-G., & Sun, G.-K. (1998). Rheology of cement paste and concrete. Cement, Concrete and Aggregates, 20(2), 269–277.
Tregger, N., Gregori, A., Ferrara, L., & Shah, S. (2012). Correlating dynamic segregation of self-consolidating concrete to the slump-flow test. Construction and Building Materials, 28(1), 499–505. https://doi.org/10.1016/j.conbuildmat.2011.08.052
Valcuende, M., Jarque, C., & Parra, J. (2007). Homogeneidad de los hormigones autocompactantes Self-consolidating concrete homogeneity. Materiales de Construcción, 57(287), 37–52.
Wong, H. H. C., & Kwan, A. K. H. (2008). Packing density of cementitious materials: Part 1-measurement using a wet packing method. Materials and Structures/Materiaux et Constructions, 41(4), 689–701. https://doi.org/10.1617/s11527-007-9274-5
Yahia, A., Tanimura, M., & Shimoyama, Y. (2005). Rheological properties of highly flowable mortar containing limestone filler-effect of powder content and W/C ratio. Cement and Concrete Research, 35(3), 532–539. https://doi.org/10.1016/j.cemconres.2004.05.008
Zhang, Z., Xiao, J., Zhang, Q., Han, K., Wang, J., & Hu, X. (2021). A state-of-the-art review on the stability of self-consolidating concrete. Construction and Building Materials, 268, 121099. https://doi.org/10.1016/j.conbuildmat.2020.121099.
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