An Experimental Study on the Bond Strength of Old and New Cementitious Materials
Received: 20 March 2025 | Revised: 23 April 2025 | Accepted: 10 May 2025 | Online: 22 May 2025
Corresponding author: Bach Phuong Ho Thi
Abstract
Due to climate change in most countries, construction tends to take less time than planned. Therefore, prompt repairs are needed to extend service life. One repair method is pouring new concrete onto the old, particularly for concrete pavement. However, the bond between them presents a significant challenge. This paper presents an experimental study on the bond strength of new and old concrete. The pull-off or direct tensile test was conducted to address this issue. Three substrate treatments were used: as-cast, connecting-hole, and steel brushing. The experimental results indicated that the bond strength between the old and new concrete in the as-cast substrate treatment was the lowest. In contrast, the connecting-hole and steel brushing treatments resulted in strengths that were 19% and 45% higher, respectively, than the as-cast treatment. The bond strength for the connecting-hole treatment was less than that of the steel brushing treatment, possibly due to the unsuitable hole size. The failure mode observed in this test was substrate fracture rather than sharp debonding of the two layers. That is, delamination between the old and new concrete layers did not occur. This confirms the feasibility of the repair method considered in this study for the old concrete pavement in the future.
Keywords:
bond strength, cementitious material, pull-off test, fiber-reinforced self-compacting mortar, manufactured sandDownloads
References
B. P. H. Thi, V. D. Nguyen, Q. V. Vuong, and H. M. Dang, "Enhancing the Load-bearing Capacity of a Damaged Hydraulic Structure Rehabilitated by Underwater Concreting," Engineering, Technology & Applied Science Research, vol. 14, no. 4, pp. 15651–15655, Aug. 2024. DOI: https://doi.org/10.48084/etasr.7843
P. N. Balaguru and S. P. Shah, Fiber-reinforced Cement Composites. McGraw-Hill, 1992.
A. Bentur and S. Mindess, Fibre Reinforced Cementitious Composites, 2nd ed. London: CRC Press, 2006. DOI: https://doi.org/10.1201/9781482267747
T. T. H. Nguyen, A. T. Le, and C. D. Vu, “The study on application of concrete pavement in Vietnam,” Vietnam Journal of Transportation, vol. 11, no. 1, pp. 87–95, 2009.
T. T. H. Nguyen and V. D. Nguyen, "Study on the use of different glass fiber contents for self-compacting mortar," Journal of water resources and environmental engineering, vol. 72, pp. 3–9, Dec. 2020.
N. V. Duc, "Improving the Mechanical Performance of Shell Precast Concrete Blocks for Coastal Protection Structures of Hydraulic Works," Engineering, Technology & Applied Science Research, vol. 11, no. 1, pp. 6787–6791, Feb. 2021. DOI: https://doi.org/10.48084/etasr.4009
L. T. T. Hien, N. V. Chien, and N. V. Duc, "Evaluation navigation controlled gate of aging spillway on cavitation damage," PLOS ONE, vol. 19, no. 10, 2024, Art. no. e0311247. DOI: https://doi.org/10.1371/journal.pone.0311247
EN 197-1:2011 Cement - Part 1: Composition, specifications and conformity criteria for common cements. EUROPEAN COMMITTEE FOR STANDARDIZATION, 2011.
EN 13263-1:2005+A1 Silica fume for concrete - Part 1: Definitions, requirements and conformity criteria. EUROPEAN COMMITTEE FOR STANDARDIZATION, 2009.
] V. H. Nguyen, "Study on the use of mineral additives and fiber to produce high performance concrete for the coastal area of Nam Dinh Vu, Hai Phong province," M.S. thesis, Thuyloi University, Hanoi, Vietnam, 2018.
C1666/C1666M − 08 Standard Specification for Alkali Resistant (AR) Glass Fiber for GFRC and Fiber-Reinforced Concrete and Cement. USA: ASTM International, 2023.
H. Okamura and M. Ouchi, "Self-Compacting Concrete," Journal of Advanced Concrete Technology, vol. 1, no. 1, pp. 5–15, 2003. DOI: https://doi.org/10.3151/jact.1.5
"EFNARC / EFCA Guidelines for Viscosity Modifying Admixtures for Concrete Guidelines for VMA | EFCA." https://www.efca.info/download/efnarc-efca-guidelines-for-viscosity-modifying-admixtures-for-concrete-guidelines-for-vma/.
Specification and Guidelines for Self-Compacting Concrete. UK: EFNARC, 2002.
V. D. Nguyen, "Application of glass fibre-reinforced high strength selfcompacting mortar for rehabilitating marine structures," vol. 72, pp. 10–17, 2020.
TCVN 9139:2012 CÔNG TRÌNH THỦY LỢI – KẾT CẤU BÊ TÔNG, BÊ TÔNG CỐT THÉP VÙNG VEN BIỂN - YÊU CẦU KỸ THUẬT. Vietnam: TIÊU CHUẨN QUỐC GIA, 2004.
"Digital pull-off tester." https://www.matest.com/en/product/e142-01-pull-off-5-kn-capacity .
H. Liu et al., "Interface bonding properties of new and old concrete: A review," Frontiers in Materials, vol. 11, Apr. 2024. DOI: https://doi.org/10.3389/fmats.2024.1389785
S. Mokhtari and M. Hassan, "Performance of Bond between Old and New Concrete Layers: The Effective Factors, Durability and Measurement Tests—A Review," Infrastructures, vol. 9, no. 10, Oct. 2024, Art. no. 171. DOI: https://doi.org/10.3390/infrastructures9100171
K. Pulkit, B. Saini, and H. D. Chalak, "Effect of various interface bond tests and their failure behavior on substrate and overlay concrete -A Review," Research on Engineering Structures & Materials, vol. 9, no. 2, pp. 541–562, Jan. 2023.
A. Manawadu, P. Qiao, and H. Wen, "Characterization of Substrate-to-Overlay Interface Bond in Concrete Repairs: A Review," Construction and Building Materials, vol. 373, Apr. 2023, Art. no. 130828. DOI: https://doi.org/10.1016/j.conbuildmat.2023.130828
F. Iavarone, F. J. Vecchio, G. Plizzari, and F. Minelli, "Shear bond between existing concrete and high-strength fiber reinforced overlay: Influence of substrate strength and interface roughness," Structural Concrete, vol. 25, no. 1, pp. 526–536, 2024. DOI: https://doi.org/10.1002/suco.202200465
S. Feng, H. Xiao, R. Liu, and M. Liu, "The bond properties between ultra-high-performance concrete and normal strength concrete substrate: Bond macro-performance and overlay transition zone microstructure," Cement and Concrete Composites, vol. 128, Apr. 2022, Art. no. 104436. DOI: https://doi.org/10.1016/j.cemconcomp.2022.104436
D. Daneshvar, A. Behnood, and A. Robisson, "Interfacial bond in concrete-to-concrete composites: A review," Construction and Building Materials, vol. 359, Dec. 2022, Art. no. 129195. DOI: https://doi.org/10.1016/j.conbuildmat.2022.129195
M. A. Al-Osta, S. Ahmad, M. K. Al-Madani, H. R. Khalid, M. Al-Huri, and A. Al-Fakih, "Performance of bond strength between ultra-high-performance concrete and concrete substrates (concrete screed and self-compacted concrete): An experimental study," Journal of Building Engineering, vol. 51, Jul. 2022, Art. no. 104291. DOI: https://doi.org/10.1016/j.jobe.2022.104291
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