Strength development and coefficient of thermal expansion of high-strength concrete using silica fume
Email:
hoangviethai@utc.edu.vn
Tóm tắt
Silica fume as a partial replacement for cement in high-strength concrete has been the focus of numerous studies. However, the impact of substituting cement with silica fume in concrete mixtures on the mechanical and thermal properties of high-strength concrete remains insufficiently explored. Silica fume, characterized by its high pozzolanic activity and ultra-fine particles, is incorporated into concrete mixtures to enhance their mechanical properties and durability. The research examines the influence of varying silica fume content on the compressive strength and CTE of high-strength concrete. In the present study, concrete specimens with a water-cement ratio of 0.32 were prepared, with 5%, 10%, and 15% of the cement replaced by silica fume. Experimental results demonstrate that silica fume significantly improves compressive strength, particularly at early ages, starting from 7 days. However, the CTE of these mixtures is not significantly affected, with the average values varying slightly, ranging from 8.95 to 9.93 × 10⁻⁶/°C. This study contributes to further clarifying the role of silica fume in concrete mixtures and its effect on the CTETài liệu tham khảo
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[2]. L. Nguyen-Ngoc, T.A. Do, V.H. Hoang et al., Equivalent Convective Heat Transfer Coefficient for Boundary Conditions in Temperature Prediction of Early-Age Concrete Elements Using FD and PSO. KSCE J Civ Eng, 27 (2023) 2546–2558. https://doi.org/10.1007/s12205-023-1116-7
[3]. M. Mazloom, A.A. Ramezanianpour, J.J. Brooks, Effect of silica fume on mechanical properties of high-strength concrete, Cement & Concrete Composites, (2004). https://doi.org/10.1016/S0958-9465(03)00017-9
[4]. V.H. Hoang, T.A. Do, A.T. Tran, Flexural capacity of reinforced concrete slabs retrofitted with ultra-high-performance concrete and fiber-reinforced polymer, Innovative Infrastructure Solution, 9 (2024) 113. https://doi.org/10.1007/s41062-024-01410-y
[5]. J.B. Effinger, R. Li, J. Silva, S.M. Cramer, Laboratory Study of Concrete Properties
to Support Implementation of the New AASHTO Mechanistic Empirical
Pavement Design Guide, Report No. 0092-10-11, Wisconsin Department of
Transportation, 2012.
[6]. N. Vanessa et al, Prediction of concrete coefficient of thermal expansion and other properties using machine learning, Construction and Building Materials, 220 (2019) 587-595. https://doi.org/10.1016/j.conbuildmat.2019.05.006
[7]. A.M. Neville, Properties of Concrete (5th edition), Pearson United Kingdom, 2011.
[8]. H.T. Ngo, D.H Pham, Study of the thermal properties of concrete using Thanh Son-Phu Tho quartz stone aggregates, Vietnam Journal of Roads and Bridges, 2018. (in Vietnamese)
[9]. ACI 211.4R-08, Guide for Selecting Proportions for High-Strength Concrete Using Portland Cement and Other Cementitious Materials, American concrete Institute, 2008.
[10]. ASTM C39/C39M- 01, Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens, 2016.
[11]. AASHTO 336T, Standard Test Method for the Coefficient of Thermal Expansion of Hydraulic Cement Concrete, 2009.
[12]. N.M. García et al., Effect of fly ash and nanosilica on compressive strength of concrete at early age", Advances in Applied Ceramics, 114 (2015) pp. 99-106.
[13]. J. Gražulytė et al, Effect of Silica Fume on High-strength Concrete Performance, the 5th World Congress on Civil, Structural, and Environmental Engineering, 2020. https://doi.org/10.1016/S0958-9465(03)00017-9
[14]. ACI 363R-10, Report on High-Strength Concrete, American concrete Institute, 2010.
[15]. H. Kada et al, Determination of the coefficient of thermal expansion of high-performance concrete from initial setting, Materials and Structures, 35 (2002) 35–41.
Tải xuống
Chưa có dữ liệu thống kê
Nhận bài
04/10/2024
Nhận bài sửa
26/12/2024
Chấp nhận đăng
10/01/2025
Xuất bản
15/01/2025
Chuyên mục
Công trình khoa học
Kiểu trích dẫn
Nguyen Duy, T., Hoang Viet, H., Tran Duc, T., & Do Anh, T. (1736874000). Strength development and coefficient of thermal expansion of high-strength concrete using silica fume. Tạp Chí Khoa Học Giao Thông Vận Tải, 76(1), 114-123. https://doi.org/10.47869/tcsj.76.1.10
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