Comparative assessment of hydration-heat characteristics and early-age thermal cracking potential of high-strength mass concrete containing fly ash and silica fume
Email:
doanhtu@utc.edu.vn
Từ khóa:
Hydration heat, Adiabatic temperature rise, Fly ash, Silica fume, Early-age thermal cracking
Tóm tắt
This paper compares the effects of fly ash (FA) and silica fume (SF) replacement on the hydration heat characteristics and early-age thermal cracking potential of high-strength concrete in a single bridge-pier cross-section. Experimental data from two independent experimental programs comprising two mixture series (FA: 0-30%; SF: 0-15%) were evaluated using within-series control normalization. The eight mixtures were assessed for a common 2.0 m × 3.0 m section under the same seven-day thermal-mechanical analysis conditions. Maximum adiabatic temperature rise decreased by 17.6% for FA30 and 7.3% for SF15 relative to their respective controls; at 10% replacement, the reductions were 4.5% for FA and 5.2% for SF. Despite the greater heat reduction in the FA series, its maximum cracking index increased from 0.9793 (FA00) to 1.0241 (FA30), with FA30 alone exceeding the adopted stress-to-strength threshold of 1.0. In contrast, SF10 and SF15 reduced the maximum cracking index by 4.51% and 6.58%, respectively, relative to SF00; the corresponding indices were 0.8343 and 0.8162. These contrasting trends show that the benefits of reducing hydration heat cannot be assessed independently of early-age tensile strength development. For the investigated section and boundary conditions, SF at 10-15% provided the more favorable combined response, whereas increasing FA replacement reduced heat release without improving the calculated cracking index. The findings are comparative and specific to the studied series of mixtures and structural scenario.Tài liệu tham khảo
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[2]. ACI Committee 207, ACI 207.2R-07: Report on Thermal and Volume Change Effects on Cracking of Mass Concrete, American Concrete Institute, Farmington Hills, MI, 2007.
[3]. G. De Schutter, Fundamental study of early age concrete behaviour as a basis for durable concrete structures, Materials and Structures, 35(1) (2002) 15-21. https://doi.org/10.1007/BF02482085
[4]. A.K. Schindler, K.J. Folliard, Heat of hydration models for cementitious materials, ACI Materials Journal, 102(1) (2005) 24-33. https://doi.org/10.14359/14246
[5]. A.M. Lawrence, M. Tia, C.C. Ferraro, M. Bergin, Effect of early age strength on cracking in mass concrete containing different supplementary cementitious materials: experimental and finite-element investigation, Journal of Materials in Civil Engineering, 24(4) (2012) https://doi.org/10.1061/(ASCE)MT.1943-5533.0000389
[6]. Y. Zhang, T. Kim, A. Castel, T. Xu, Thermal cracking in high volume of fly ash and GGBFS concrete, International Journal of Concrete Structures and Materials, 17 (2023) 65. https://doi.org/10.1186/s40069-023-00626-z
[7]. M.P. Mokal, R. Mandal, S. Nayak, S.K. Panda, Impact of slag-fly ash cementitious system on thermal controls and durability of high-strength mass concrete, Structural Concrete, 24(5) (2023) 6778-6797. https://doi.org/10.1002/suco.202300197
[8]. J. Xin, Y. Liu, G. Zhang, Z. Wang, J. Wang, N. Yang, Y. Qiao, Evaluation of early-age thermal cracking resistance of high w/b, high volume fly ash (HVFA) concrete using temperature stress testing machine, Case Studies in Construction Materials, 16 (2022) e00825. https://doi.org/10.1016/j.cscm.2021.e00825
[9]. X. Li, Z. Yu, K. Chen, C. Deng, F. Yu, Investigation of temperature development and cracking control strategies of mass concrete: A field monitoring case study, Case Studies in Construction Materials, 18 (2023) e02144. https://doi.org/10.1016/j.cscm.2023.e02144
[10]. L. Li, T. Feng, Y. Li, Y. Zhang, W. Sun, Z. Liu, Evaluating the effect of high fly ash content and low curing temperature on early hydration heat of blended cement based on isothermal calorimetric method, Construction and Building Materials, 430 (2024) 136110. https://doi.org/10.1016/j.conbuildmat.2024.136110
[11]. D.T. Nguyen, T.A. Do, V.H. Hoang, T.T. Hoang, D.T. Tran, Optimized silica fume replacement for enhanced early-age thermal cracking resistance in high-performance concrete: Experimental and numerical evaluation, Frontiers of Structural and Civil Engineering, 20(4) (2026) 706-720. https://doi.org/10.1007/s11709-026-1291-y
[12]. Hoang Thi Tuyet, Study on thermal behavior and solutions for temperature control and crack mitigation in early-age high-strength concrete in bridge structures, Ph.D. dissertation, University of Transport and Communications, Hanoi, 2023 (in Vietnamese).
[13]. Tran Duc Tam, Study on the thermo-mechanical behavior of bridge structures using concrete with silica fume mineral admixture, Ph.D. dissertation, University of Transport and Communications, Hanoi, 2024 (in Vietnamese).
[14]. D.T. Nguyen, V.H. Hoang, D.T. Tran, A.T. Do, Strength development and coefficient of thermal expansion of high-strength concrete using silica fume, Transport and Communications Science Journal, 76(1) (2025) 114-123. https://doi.org/10.47869/tcsj.76.1.10
[15]. ACI Committee 211, ACI 211.4R-08: Guide for Selecting Proportions for High-Strength Concrete Using Portland Cement and Other Cementitious Materials, American Concrete Institute, Farmington Hills, MI, 2008.
[16]. Y. Lin, H.-L. Chen, Thermal analysis and adiabatic calorimetry for early-age concrete members: Part 2. Evaluation of thermally induced stresses, Journal of Thermal Analysis and Calorimetry, 124(1) (2016) 227-239. https://doi.org/10.1007/s10973-015-5131-x
[17]. ASTM International, ASTM C1679-08: Standard Practice for Measuring Hydration Kinetics of Hydraulic Cementitious Mixtures Using Isothermal Calorimetry, ASTM International, West Conshohocken, PA, 2008. https://doi.org/10.1520/C1679-08
[18]. D.P. Bentz, Transient plane source measurements of the thermal properties of hydrating cement pastes, Materials and Structures, 40(10) (2007) 1073-1080. https://doi.org/10.1617/s11527-006-9206-9
[19]. K.A. Riding, J.L. Poole, K.J. Folliard, M.C.G. Juenger, A.K. Schindler, Modeling hydration of cementitious systems, ACI Materials Journal, 109(2) (2012) 225-234. https://doi.org/10.14359/51683709
[20]. ACI Committee 209, ACI 209.2R-08: Guide for Modeling and Calculating Shrinkage and Creep in Hardened Concrete, American Concrete Institute, Farmington Hills, MI, 2008.
[21]. J.L. Poole, K.A. Riding, K.J. Folliard, M.C.G. Juenger, A.K. Schindler, Methods for calculating activation energy for Portland cement, ACI Materials Journal, 104(1) (2007) 303-311. https://doi.org/10.14359/18499
[22]. T.A. Do, H.L. Chen, G. Leon, T.H. Nguyen, A combined finite difference and finite element model for temperature and stress predictions of cast-in-place cap beam on precast columns, Construction and Building Materials, 217 (2019) 172-184. https://doi.org/10.1016/j.conbuildmat.2019.05.019
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13/10/2026
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10/11/2026
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Kiểu trích dẫn
Tuyet Thi, H., Tu Anh, D., Viet Hai, H., & Duc Chinh, N. (1794675600). Comparative assessment of hydration-heat characteristics and early-age thermal cracking potential of high-strength mass concrete containing fly ash and silica fume. Tạp Chí Khoa Học Giao Thông Vận Tải, 77(9), 1243-1258. https://doi.org/10.47869/tcsj.77.9.9
