Title:
Splitting Tensile Strength of Concrete Corroded by Saline Soil
Author(s):
Deqiang Yang, Changwang Yan, Shuguang Liu, Ju Zhang, and Zhichao Hu
Publication:
Materials Journal
Volume:
117
Issue:
1
Appears on pages(s):
15-23
Keywords:
chloride; corroded concrete; corrosive effect; parallel bar model; saline soil; splitting tensile strength; sulfate
DOI:
10.14359/51719077
Date:
1/1/2020
Abstract:
This paper reports the splitting tensile strength of concrete corroded by saline soil. The wet-dry cycle erosion test and splitting tensile test were performed on concrete cubic specimens with six different erosion inspection periods and a solution with the same concentration as the saline soil. The variation of chlorine and sulfate with erosion depth for different erosion inspection periods of corroded concrete, as well as the powder on the concrete within the erosion depth, were analyzed via X-ray diffraction (XRD). Combined
with the parallel bar system, corroded concrete specimens were divided into corrosion and non-corrosion parts. Considering the corrosive effect of saline soil on the concrete specimen, the splitting tensile strength model of the corroded concrete in the saline soil area was established and compared with experimental values. The results show that the calculated values of the splitting tensile strength model established herein agreed with experimental values. The splitting tensile strength of concrete gradually decreased with the increasing erosion depth, and the erosion depth gradually deepened with the increasing wet-dry cycle time. This is because CaCO3, ettringite, gypsum, and Friedel’s salts were produced by reacting with concrete in the range of erosion, which resulted in the decrease of splitting tensile strength of concrete.
Related References:
1. GB/T 50081-2016, “Standard for Test Method of Mechanical Properties on Ordinary Concrete,” Ministry of Housing and Urban-Rural Construction of the People's Republic of China, 2016, pp. 19-20. (in Chinese)
2. ASTM C496/C496M-11, “Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens,” ASTM International, West Conshohocken, PA, 2011, 5 pp.
3. GB 50010-2010, “Code for Design of Concrete Structures,” Ministry of Housing and Urban-Rural Construction of the People’s Republic of China, 2010. (in Chinese)
4. JSCE, “Standard Specifications for Concrete Structures—2007, Materials and Construction,” Japan Society of Civil Engineers, 2007.
5. ACI Committee 318, “Building Code Requirements for Structural Concrete (ACI 318-11) and Commentary,” American Concrete Institute, Farmington Hills, MI, 2011, 473 pp.
6. Gerges, N. N.; Issa, C. A.; and Fawaz, S., “Effect of Construction Joints on the Splitting Tensile Strength of Concrete,” Case Studies in Construction Materials, V. 3, 2015, pp. 83-91. doi: 10.1016/j.cscm.2015.07.001
7. Gaedicke, C.; Torres, A.; Huynh, K. C. T.; and Marines, A., “A Method to Correlate Splitting Tensile Strength and Compressive Strength of Pervious Concrete Cylinders and Cores,” Construction and Building Materials, V. 125, 2016, pp. 271-278. doi: 10.1016/j.conbuildmat.2016.08.031
8. Khoshkenari, A. G.; Shafigh, P.; Moghimi, M.; and Mahmud, H. B., “The Role of 0-2 mm Fine Recycled Concrete Aggregate on the Compressive and Splitting Tensile Strengths of Recycled Concrete Aggregate Concrete,” Materials and Design, V. 64, 2014, pp. 345-354. doi: 10.1016/j.matdes.2014.07.048
9. Rocco, C.; Guinea, G. V.; Planas, J.; and Elices, M., “Review of the Splitting-Test Standards from a Fracture Mechanics Point of View,” Cement and Concrete Research, V. 31, No. 1, 2001, pp. 73-82. doi: 10.1016/S0008-8846(00)00425-7
10. Bashandy, A. A., “Self-Curing Concrete under Sulfate Attack,” Archives of Civil Engineering, V. 62, No. 2, 2016, pp. 3-18. doi: 10.1515/ace-2015-0061
11. Wang, H.; Dong, Y.; Sun, X.; and Jin, W., “Damage Mechanism of Concrete Deteriorated by Sulfate Attack in Wet-Dry Cycle Environment,” Journal of Zhejiang University (Engineering Science), V. 46, No. 7, 2012, pp. 1255-1261. (in Chinese)
12. Eskandari, H.; Nik, M. G.; and Eidi, M. M., “Prediction of Mortar Compressive Strengths for Different Cement Grades in the Vicinity of Sodium Chloride Using ANN,” Procedia Engineering, V. 150, 2016, pp. 2185-2192. doi: 10.1016/j.proeng.2016.07.262
13. Gollop, R. S., and Taylor, H. F. W., “Micro-Structural and Micro-Analytical Studies of Sulfate Attack I. Ordinary Portland Cement Paste,” Cement and Concrete Research, V. 22, No. 6, 1992, pp. 1027-1038. doi: 10.1016/0008-8846(92)90033-R
14. Schmidt, T.; Lothenbach, B.; Romer, M.; Neuenschwander, J.; and Scrivener, K. L., “Physical and Microstructural Aspects of Sulfate Attack on Ordinary and Limestone Blended Portland Cements,” Cement and Concrete Research, V. 39, No. 12, 2009, pp. 1111-1121. doi: 10.1016/j.cemconres.2009.08.005
15. Mehta, P. K., “Mechanism of Expansion Associated with Ettringite Formation,” Cement and Concrete Research, V. 3, No. 1, 1973, pp. 1-6. doi: 10.1016/0008-8846(73)90056-2
16. Scherer, G. W., “Stress from Crystallization of Salt,” Cement and Concrete Research, V. 34, No. 9, 2004, pp. 1613-1624. doi: 10.1016/j.cemconres.2003.12.034
17. Flatt, R. J., and Scherer, G. W., “Thermodynamics of Crystallization Stresses in DEF,” Cement and Concrete Research, V. 38, No. 3, 2008, pp. 325-336. doi: 10.1016/j.cemconres.2007.10.002
18. Pruckner, F., and Gjørv, O. E., “Effect of CaCl2 and NaCl Additions on Concrete Corrosivity,” Cement and Concrete Research, V. 34, No. 7, 2004, pp. 1209-1217. doi: 10.1016/j.cemconres.2003.12.015
19. Li, C.; Zhu, H.; Wu, M.; Wu, K.; and Jiang, Z., “Pozzolanic Reaction of Fly Ash Modified by Fluidized Bed Reactor-Vapor Deposition,” Cement and Concrete Research, V. 92, 2017, pp. 98-109. doi: 10.1016/j.cemconres.2016.11.016
20. Haufe, J., and Vollpracht, A., “Tensile Strength of Concrete Exposed to Sulfate Attack,” Cement and Concrete Research, V. 116, 2019, pp. 81-88. doi: 10.1016/j.cemconres.2018.11.005
21. Yu, H., “Study on High Performance Concrete in Salt Lake: Durability, Mechanism and Service Life Prediction,” PhD thesis, Southeast University, Nanjing, China, 2004, 32 pp. (in Chinese)
22. Liu, L., “Brief Introduction on the Study of Erosion and Prevention of Concrete in Salt Lake and Saline Soil Area of Chaerhan, Chaidamu,” Journal of Building Materials, V. 4, No. 4, 2001, pp. 395-400.
23. Wang, F.; Sun, R.; and Qin, X., “The Investigation of Concrete Durability under Natural Condition of Ca Er Han Salt Lake,” Bulletin of the Chinese Ceramic Society, V. 4, 2001, pp. 16-22.
24. Kwon, S.-J.; Lee, H.-S.; Karthick, S.; Saraswathy, V.; and Yang, H.-M., “Long-Term Corrosion Performance of Blended Cement Concrete in the Marine Environment—A Real-Time Study,” Construction and Building Materials, V. 154, 2017, pp. 349-360. doi: 10.1016/j.conbuildmat.2017.07.237
25. GB 175-2007, “Common Portland Cement,” National Health Commission of the People’s Republic of China and Standardization Administration and State Administration for Market Regulation, 2007, 5 pp. (in Chinese)
26. GB 5749-2006, “Standards for Drinking Water Quality,” National Health Commission of the People’s Republic of China and Standardization Administration, 2006, 3 pp. (in Chinese)
27. SL352-2006, “Test Code for Hydraulic Concrete,” Ministry of Water Resources of the People’s Republic of China, 2006, pp. 22-23 and 182-184. (in Chinese)
28. Otsuki, N.; Nagataki, S.; and Nakashita, K., “Evaluation of AgNO3 Solution Spray Method for Measurement of Chloride Penetration into Hardened Cementitious Matrix Materials,” Construction and Building Materials, V. 7, No. 4, 1993, pp. 195-201. doi: 10.1016/0950-0618(93)90002-T
29. GB/T 50081-2002, “Standard for Test Method of Mechanical Properties on Ordinary Concrete,” Ministry of Housing and Urban-Rural Construction of the People’s Republic of China, 2002, pp. 19-20. (in Chinese)
30. Sirivivantnanon, V., and Khatri, R., “Chloride Penetration Resistance of Concrete,” Presented to Concrete Institute of Australia Conference: Getting a Lifetime out of Concrete Structures, Brisbane, Australia, Oct. 1998.
31. Andrade, C.; Castellote, M.; Alonso, C.; and González, C., “Relation between Colorimetric Chloride Penetration Depth and Charge Passed in Migration Tests of the Type of Standard ASTM C1202-91,” Cement and Concrete Research, V. 29, No. 3, 1999, pp. 417-421. doi: 10.1016/S0008-8846(98)00226-9
32. Thomas, M. D. A., and Bamforth, P. B., “Modelling Chloride Diffusion in Concrete—Effect of Fly Ash and Slag,” Cement and Concrete Research, V. 29, No. 4, 1999, pp. 487-495. doi: 10.1016/S0008-8846(98)00192-6