Experimental Study on the Influence of Transverse Crack on Chloride Ingress in Concrete Slab Track of High-Speed Railway
Abstract
:1. Introduction
2. Experimental Program
2.1. Design of Specimens
2.2. Materials
2.3. Preparation of Specimens
2.4. Loading and Crack Formation
2.5. Drying-Wetting Cycles Test
2.6. Determination of Free Chloride Ions Concentration
3. Results and Discussion
3.1. Chloride Ions Concentration in Concrete
3.2. Chloride Diffusion Coefficient
3.3. Transport Model of Chloride in Cracked Concrete
4. Conclusions
- (1)
- The experimental results show that the chloride ion concentration of the concrete slab track at the crack section is much higher than that at the intact section, and it increases with the increase of crack width in a range of 0.2 mm to 0.6 mm.
- (2)
- The variation of chloride concentration with the depth in the concrete slab track obviously deviates from the chloride diffusion model in the cracked section. The presence and development of transverse cracks in the concrete track slab and base slab could change the one-dimensional diffusion-dominated transmission mode of chloride into a typical two-dimensional diffusion mode.
- (3)
- The chloride diffusion coefficient of the concrete slab track at the cracked section is much higher than that at the uncracked section. When the surface crack width reaches 0.6 mm, the apparent chloride diffusion coefficient increases by 11 to 12 times and 8.5 to 11 times for the track slab and base slab specimens, respectively.
- (4)
- The surface chloride concentration of the concrete slab track at the cracked section increases with the increase of maximum crack width. Transverse cracks and V-shaped grooves in the CRTS II slab track structure could collect chloride solution during the drying-wetting cycles and provide special space for chloride ions deposition.
- (5)
- A degradation effect function f(w) of the concrete slab track is introduced in the equivalent diffusion coefficient model to express the influence of crack width on the localized chloride transmission rate at the cracked section. The relationship between the degradation effect coefficient of chloride diffusion and the crack width conforms to a cubic function or quadratic function for the track slab and base slab.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
- Huang, Y.; Gao, L.; Zhong, Y.; Zhou, C. Study on the damage evolution of the joint and the arching deformation of CRTS-II ballastless slab track under complex temperature loading. Constr. Build. Mater. 2021, 309, 125083. [Google Scholar] [CrossRef]
- Zhang, Q.; Cai, X.; Zhong, Y.; Chen, Z.; Wang, C. Temperature field and thermal effects of the longitudinal connected slab track based on the measurement data and thermal-fluid-structure coupling analysis. Constr. Build. Mater. 2022, 343, 128121. [Google Scholar] [CrossRef]
- Li, Y.; Li, H.; Zhang, G.; Kaewunruen, S. Nonlinear responses of longitudinally coupled slab tracks exposed to extreme heat waves. Eng. Struct. 2023, 281, 115789. [Google Scholar] [CrossRef]
- Zhu, S.; Cai, C. Stress intensity factors evaluation for through-transverse crack in slab track system under vehicle dynamic load. Eng. Fail. Anal. 2014, 46, 219–237. [Google Scholar] [CrossRef]
- Cui, X.; Zhou, R.; Guo, G.; Du, B.; Liu, H. Effects of train load and water on stress intensity factors of the crack in slab track. Constr. Build. Mater. 2021, 299, 124247. [Google Scholar] [CrossRef]
- Feng, Q.; Sun, K.; Chen, H.; Lei, X. Long-term prediction of fatigue crack growth in ballastless track of high-speed railway due to cyclic train load. Constr. Build. Mater. 2021, 292, 123375. [Google Scholar] [CrossRef]
- Cho, Y.K.; Kim, S. Experimental analysis of crack width movement of continuously reinforced concrete railway track. Eng. Struct. 2019, 194, 262–273. [Google Scholar] [CrossRef]
- Li, X.; Ren, J.; Wang, J.; Yang, R.; Shi, L.; Liu, X. Drying shrinkage of early-age concrete for twin-block slab track. Constr. Build. Mater. 2020, 243, 118237. [Google Scholar] [CrossRef]
- Cui, X.; Ling, X. Effects of differential subgrade settlement on damage distribution and mechanical properties of CRTS II slab track. Constr. Build. Mater. 2021, 271, 121821. [Google Scholar] [CrossRef]
- Cui, X.; Guo, G.; Du, B.; Cai, X.; Zhou, R. Effects of lateral differential settlement of the subgrade on deformation behavior and damage evolution of CRTS II slab track. Eng. Fail. Anal. 2021, 129, 105674. [Google Scholar] [CrossRef]
- Ye, H.; Jin, N.; Jin, X.; Fu, C. Model of chloride penetration into cracked concrete subject to drying–wetting cycles. Constr. Build. Mater. 2012, 36, 259–269. [Google Scholar] [CrossRef]
- Ye, H.L.; Tian, Y.; Jin, N.G.; Jin, X.Y.; Fu, C.Q. Influence of cracking on chloride diffusivity and moisture influential depth in concrete subjected to simulated environmental conditions. Constr. Build. Mater. 2013, 47, 66–79. [Google Scholar] [CrossRef]
- Ye, H.L.; Jin, X.Y.; Fu, C.Q.; Jin, N.G.; Xu, Y.B.; Huang, T. Chloride penetration in concrete exposed to cyclic drying-wetting and carbonation. Constr. Build. Mater. 2016, 112, 457–463. [Google Scholar] [CrossRef]
- Fu, C.Q.; Ye, H.L.; Jin, X.Y.; Yan, D.M.; Jin, N.G.; Peng, Z.X. Chloride penetration into concrete damaged by uniaxial tensile fatigue loading. Constr. Build. Mater. 2016, 125, 714–723. [Google Scholar] [CrossRef]
- Aldea, C.M.; Shah, S.P.; Karr, A. Permeability of cracked concrete. Mater. Struct. 1999, 32, 370–376. [Google Scholar] [CrossRef]
- Lu, C.H.; Jin, W.L.; Liu, R.G. Reinforcement corrosion-induced cover cracking and its time prediction for reinforced concrete structures. Corros. Sci. 2011, 53, 1337–1347. [Google Scholar] [CrossRef]
- Kwon, S.J.; Na, U.J.; Park, S.S.; Jung, S.H. Service life prediction of concrete wharves with early-aged crack: Probabilistic approach for chloride diffusion. Struct. Saf. 2009, 31, 75–83. [Google Scholar] [CrossRef]
- Peng, J.; Hu, S.; Zhang, J.; Cai, C.S.; Li, L. Influence of cracks on chloride diffusivity in concrete: A five-phase mesoscale model approach. Constr. Build. Mater. 2019, 197, 587–596. [Google Scholar] [CrossRef]
- Šavija, B.; Schlangen, E.; Pacheco, J.; Millar, S.; Eichler, T.; Wilsch, G. Chloride ingress in cracked concrete: A laser induced breakdown spectroscopy (LIBS) study. J. Adv. Concr. Technol. 2014, 12, 425–442. [Google Scholar] [CrossRef]
- Jang, S.Y.; Kim, B.S.; Oh, B.H. Effect of crack width on chloride diffusion coefficients of concrete by steady-state migration tests. Cem. Concr. Res. 2011, 41, 9–19. [Google Scholar] [CrossRef]
- Sahmaran, M. Effect of flexure induced transverse crack and self-healing on chloride diffusivity of reinforced mortar. J. Mater. Sci. 2007, 42, 9131–9136. [Google Scholar] [CrossRef]
- Wang, H.; Dai, J.; Sun, X.; Zhang, X. Characteristics of concrete cracks and their influence on chloride penetration. Constr. Build. Mater. 2016, 107, 216–225. [Google Scholar] [CrossRef]
- Mu, S.; De Schutter, G.; Ma, B. Non-steady state chloride diffusion in concrete with different crack densities. Mater. Struct. 2013, 46, 123–133. [Google Scholar] [CrossRef]
- Song, H.; Pack, S.; Lee, C.; Kwon, S. Service life prediction of concrete structures under marine environment considering coupled deterioration. J. Restor. Build. Monum. 2006, 12, 265–284. [Google Scholar]
- Shao-feng, Z.; Chun-hua, L.; Rong-gui, L. Experimental determination of chloride penetration in cracked concrete beams. Procedia Eng. 2011, 24, 380–384. [Google Scholar] [CrossRef]
- Lu, C.; Liu, R.; Cui, Z.; Yan, Y. Study on chloride penetration into flexural cracked reinforced concrete beams subjected to drying-wetting cycles. Tumu Gongcheng Xuebao/China Civ. Eng. J. 2014, 47, 82–90. [Google Scholar]
- AL-Ameeri, A.S.; Rafiq, M.I.; Tsioulou, O. Combined impact of carbonation and crack width on the chloride penetration and corrosion resistance of concrete structures. Cem. Concr. Compos. 2021, 115, 103819. [Google Scholar] [CrossRef]
- Sun, R.; Lu, W.; Ma, C.; Tawfek, A.M.; Guan, Y.; Hu, X.; Zhang, H.; Ling, Y.; Šavija, B. Effect of crack width and wet-dry cycles on the chloride penetration resistance of engineered cementitious composite (ECC). Constr. Build. Mater. 2022, 352, 129030. [Google Scholar] [CrossRef]
- Marsavina, L.; Audenaert, K.; De Schutter, G.; Faur, N.; Marsavina, D. Experimental and numerical determination of the chloride penetration in cracked concrete. Constr. Build. Mater. 2009, 23, 264–274. [Google Scholar] [CrossRef]
- Wang, J.; Basheer, P.A.M.; Nanukuttan, S.V.; Long, A.E.; Bai, Y. Influence of service loading and the resulting micro-cracks on chloride resistance of concrete. Constr. Build. Mater. 2016, 108, 56–66. [Google Scholar] [CrossRef]
- Audenaert, K.; De Schutter, G.; Marsavina, L. Influence of cracks and crack width on penetration depth of chlorides in concrete. Eur. J. Environ. Civ. Eng. 2009, 13, 561–572. [Google Scholar] [CrossRef]
- Li, Y.; Chen, X.H.; Jin, L.; Zhang, R.B. Experimental and numerical study on chloride transmission in cracked concrete. Constr. Build. Mater. 2016, 127, 425–435. [Google Scholar] [CrossRef]
- Aldea, C.; Shah, S.P.; Karr, A. Effect of cracking on water and chloride permeability of concrete. J. Mater. Civ. Eng. 1999, 11, 181–187. [Google Scholar] [CrossRef]
- Park, S.S.; Kwon, S.J.; Jung, S.H. Analysis technique for chloride penetration in cracked concrete using equivalent diffusion and permeation. Constr. Build. Mater. 2012, 29, 183–192. [Google Scholar] [CrossRef]
- Chen, J.; Tian, C.; Wei, X. Experimental and simulation study on chloride permeability in cement paste. Constr. Build. Mater. 2020, 262, 120600. [Google Scholar] [CrossRef]
- Ababneh, A.; Benboudjema, F.; Xi, Y.P. Chloride penetration in nonsaturated concrete. J. Mater. Civ. Eng. 2003, 15, 183–191. [Google Scholar] [CrossRef]
- Martín-Pérez, B.; Zibara, H.; Hooton, R.D.; Thomas, M.D.A. A study of the effect of chloride binding on service life predictions. Cem. Concr. Res. 2000, 30, 1215–1223. [Google Scholar] [CrossRef]
- Tang, L.P.; Gulikers, J. On the mathematics of time-dependent apparent chloride diffusion coefficient in concrete. Cem. Concr. Res. 2007, 37, 589–595. [Google Scholar]
- Takewaka, K.; Yamaguchi, T.; Maeda, S. Simulation model for deterioration of concrete structures due to chloride attack. J. Adv. Concr. Technol. 2003, 1, 139–146. [Google Scholar] [CrossRef]
- Gowripalan, N.; Sirivivatnanon, V.; Lim, C.C. Chloride diffusivity of concrete cracked in flexure. Cem. Concr. Res. 2000, 30, 725–730. [Google Scholar] [CrossRef]
- Kim, Y.Y.; Kim, J.M.; Bang, J.W.; Kwon, S.J. Effect of cover depth, w/c ratio, and crack width on half cell potential in cracked concrete exposed to salt sprayed condition. Constr. Build. Mater. 2014, 54, 636–645. [Google Scholar] [CrossRef]
- Paul, S.C.; van Zijl, G.; Babafemi, A.J.; Tan, M.J. Chloride ingress in cracked and uncracked SHCC under cyclic wetting-drying exposure. Constr. Build. Mater. 2016, 114, 232–240. [Google Scholar] [CrossRef]
- Huang, D.; Niu, D.; Su, L.; Fu, Q. Chloride Diffusion Behavior of Coral Aggregate Concrete Under Drying-Wetting Cycles. Constr. Build. Mater. 2021, 270, 121485. [Google Scholar] [CrossRef]
- Simcic, T.; Pejovnik, S.; De Schutter, G.; Bosiljkov, V.B. Chloride ion penetration into fly ash modified concrete during wetting-drying cycles. Constr. Build. Mater. 2015, 93, 1216–1223. [Google Scholar] [CrossRef]
- Wu, J.; Li, H.M.; Wang, Z.; Liu, J.J. Transport model of chloride ions in concrete under loads and drying-wetting cycles. Constr. Build. Mater. 2016, 112, 733–738. [Google Scholar] [CrossRef]
- Wang, Y.Z.; Wu, L.J.; Wang, Y.C.; Liu, C.X.; Li, Q.M. Effects of coarse aggregates on chloride diffusion coefficients of concrete and interfacial transition zone under experimental drying-wetting cycles. Constr. Build. Mater. 2018, 185, 230–245. [Google Scholar] [CrossRef]
- Cao, T.N.; Zhang, L.J.; Sun, G.W.; Wang, C.H.; Zhang, Y.; Wang, P.S.; Xu, A.X. Simulation of chloride ion transport in concrete under the coupled effects of a bending load and drying-wetting cycles. Constr. Build. Mater. 2020, 241, 118045. [Google Scholar]
- Su, L.; Niu, D.T.; Huang, D.G.; Luo, Y.; Qiao, H.X.; Zhang, Y.S. Chloride diffusion behavior and microstructure of basalt-polypropylene hybrid fiber reinforced concrete in salt spray environment. Constr. Build. Mater. 2022, 324, 126716. [Google Scholar] [CrossRef]
- T/CECS 762-2020; Central South University. Standard for Indoor Simulated Environmental Test Method of Concrete Structural Durability. China Architecture & Building Press: Beijing, China, 2020. (In Chinese)
- JGJ/T 322-2013; China Academy of Building Research. Technical Specification for Test of Chloride Ion Content in Concrete. China Architecture & Building Press: Beijing, China, 2014. (In Chinese)
- C1152/C1152M-04R12E01; Subcommittee C09.69. Standard Test Method for Acid-Soluble Chloride in Mortar and Concrete. ASTM International: West Conshohocken, PA, USA, 2012.
- Yuan, Q.A.; Shi, C.J.; De Schutter, G.; Deng, D.H.; He, F.Q. Numerical model for chloride penetration into saturated concrete. J. Mater. Civ. Eng. 2011, 23, 305–311. [Google Scholar] [CrossRef]
- C1556-11AR16; Subcommittee C09.66. Standard Test Method for Determining the Apparent Chloride Diffusion Coefficient of Cementitious Mixtures by Bulk Diffusion. ASTM International: West Conshohocken, PA, USA, 2016.
- Rodriguez, O.G.; Hooton, R.D. Influence of cracks on chloride ingress into concrete. ACI Mater. J. 2003, 100, 120–126. [Google Scholar]
- Ismail, M.; Toumi, A.; Francois, R.; Gagne, R. Effect of crack opening on the local diffusion of chloride in cracked mortar samples. Cem. Concr. Res. 2008, 38, 1106–1111. [Google Scholar] [CrossRef]
- Djerbi, A.; Bonnet, S.; Khelidj, A.; Baroghel-Bouny, V. Influence of traversing crack on chloride diffusion into concrete. Cem. Concr. Res. 2008, 38, 877–883. [Google Scholar] [CrossRef]
- Ehlen, M.A.; Thomas, M.D.A.; Bentz, E. Life-365 service life prediction model version 2.0. Concr. Int. 2009, 31, 41–46. [Google Scholar]
- Bažant, Z.P.; Najjar, L.J. Nonlinear Water Diffusion in Nonsaturated Concrete. Matériaux Constr. 1972, 5, 3–20. [Google Scholar] [CrossRef]
Specimens | Strength Grade of Concrete | W/C 1 | Cement (kg/m3) | Fly Ash (kg/m3) | Fine Aggregate (kg/m3) | Coarse Aggregate (kg/m3) | Water (kg/m3) | Water Reducer (kg/m3) | 28-Day Cube Compressive Strength (MPa) |
---|---|---|---|---|---|---|---|---|---|
Track slab | C55 | 0.31 | 430 | 48 | 680 | 1157 | 133 | 6.4 | 59.4 |
Base slab | C30 | 0.44 | 273 | 117 | 880 | 954 | 172 | 3.9 | 33.6 |
Mineral Ingredient | CaO | SiO2 | Al2O3 | Fe2O3 | MgO | SO3 | Insoluble Substance |
---|---|---|---|---|---|---|---|
Content (%) | 63.51 | 22.13 | 5.63 | 4.03 | 1.69 | 2.57 | 1.92 |
Type | Specimens ID | Designed Maximum Crack Widths (mm) | Measured Maximum Crack Widths (mm) * | Average Widths (mm) | Loaded/Unloaded |
---|---|---|---|---|---|
Track slab | A-1~6 | 0 | Sound concrete | 0 | Unloaded |
B-1~6 | 0.20 | 0.21/0.22/0.19/0.21/0.20/0.21 | 0.21 | Loaded | |
C-1~6 | 0.40 | 0.43/0.41/0.40/0.41/0.39/0.41 | 0.41 | Loaded | |
D-1~6 | 0.60 | 0.61/0.62/0.61/0.65/0.61/0.62 | 0.62 | Loaded | |
Base slab | A’-1~6 | 0 | Sound concrete | 0 | Unloaded |
B’-1~6 | 0.20 | 0.21/0.19/0.21/0.21/0.22/0.20 | 0.21 | Loaded | |
C’-1~6 | 0.40 | 0.40/0.40/0.41/0.42/0.43/0.39 | 0.41 | Loaded | |
D’-1~6 | 0.60 | 0.60/0.62/0.61/0.59/0.61/0.63 | 0.61 | Loaded |
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Liu, X.; Li, H.; Qi, M.; Yang, Y.; Zhu, Z.; Yu, Z. Experimental Study on the Influence of Transverse Crack on Chloride Ingress in Concrete Slab Track of High-Speed Railway. Materials 2023, 16, 3524. https://doi.org/10.3390/ma16093524
Liu X, Li H, Qi M, Yang Y, Zhu Z, Yu Z. Experimental Study on the Influence of Transverse Crack on Chloride Ingress in Concrete Slab Track of High-Speed Railway. Materials. 2023; 16(9):3524. https://doi.org/10.3390/ma16093524
Chicago/Turabian StyleLiu, Xiaochun, Haihua Li, Min Qi, Yiyi Yang, Zhihui Zhu, and Zhiwu Yu. 2023. "Experimental Study on the Influence of Transverse Crack on Chloride Ingress in Concrete Slab Track of High-Speed Railway" Materials 16, no. 9: 3524. https://doi.org/10.3390/ma16093524