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Experimental Investigation of Corrosion Cracking in Reinforced Concrete Beams Containing Nano Wollastonite | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 9، دوره 7، شماره 3 - شماره پیاپی 15، آبان 2019، صفحه 117-138 اصل مقاله (1.66 M) | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2018.13485.1246 | ||
| نویسندگان | ||
| Mahmoud Miri* 1؛ Mohammad Reza Ghasemi1؛ Hossein Beheshti Nezhad2 | ||
| 1Dept of Civil Eng. University of Sistan and Baluchestan | ||
| 2Dept of Civil Eng. Islamic Azad University, Birjand Branch | ||
| تاریخ دریافت: 02 دی 1396، تاریخ بازنگری: 22 تیر 1397، تاریخ پذیرش: 23 تیر 1397 | ||
| چکیده | ||
| Cracking of the concrete cover due to corrosion is defined as the serviceability limit state of reinforced concrete structures. This study evaluated the influence of a mineral admixture i.e. nano wollastonite on corrosion performance and serviceability of reinforced concrete structures by performing an accelerated corrosion test on ten reinforced concrete beams under a sustained load. To do so, five concrete beams were treated with nano wollastonite (NCW), while the others were normal concrete beams (NC). The results were discussed in terms of corrosion crack patterns, crack width, half-cell potentials, rebar mass loss, and rebar diameter degradation at different corrosion levels. The results showed that the incorporation of nano wollastonite in reinforced concrete beams increased the service life by increasing the initial cracking time, decreasing the corrosion crack growth rate and rebar mass loss. Given the maximum 0.3 mm corrosion crack width as limit state criteria, the lifetime of the NCW reinforced beams was 3.6 times longer than that of Group NC. The experimental results were compared with existing models. However, these models were unreliable in predicting the steel cross-section loss based on crack width. To solve this problem, a GMDH-type neural network model was developed and evaluated using obtained experimental data for NC and NCW beams. | ||
| کلیدواژه‌ها | ||
| Reinforced Concrete Beam؛ Corrosion؛ Crack؛ Nano Wollastonite؛ GMDH-type Neural Network | ||
| مراجع | ||
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[1] Zou, Z. H., Wu, J., Wang, Z., Wang, Z. (2016). “Relationship Between Half-Cell Potential and Corrosion Level of Rebar in Concrete, Corrosion Engineering.” Science and Technology, Vol. 51, Issue 8, pp. 588-595. [2] Hassan, A. A. A., Hossain, K. M. A., Lachemi, M. (2009). “Corrosion Resistance of Self-Consolidating Concrete in Full-Scale Reinforced Beams. ” Cement and Concrete Composites, Vol. 31, Issue 1, pp. 29-38. [3] Aveldaño, R. R., Ortega, N. F. (2011). “Characterization of concrete cracking due to corrosion of reinforcements in different environments.” Construction and Building Materials, Vol. 25, Issue 2, pp. 630-637. [4] Malumbela, G. (2010). “Measurable Parameters for Performance of Corroded and Repaired RC Beams Under Load.” Phd thesis, Department of Civil Engineering, University of Cape Town, South Africa. [5] Supit, S., Shaikh, F. U. A. (2015). “Durability Properties of High Volume Fly Ash Concrete Containing Nano Silica.” Materials and Structures, Vol. 48, Issue 8, pp. 2431-2445. [6] Shaikh, F. U. A., Supit, S. W. M. (2015). “Chloride Induced Corrosion Durability of High Volume Fly Ash Concretes Containing Nano Particles.” Construction and Building Materials, Vol. 99, pp. 208-225. [7] Ranjbar, M. M., Madandoust, R., Mousavi, S. Y., Yosefi, S. (2013). “Effects of Natural Zeolite on the Fresh and Hardened Properties of Self-Compacted Concrete.” Construction and Building Materials, Vol. 47, pp. 806-813. [8] Torkaman, J., Ashori, A., Sadr Momtazi, A. (2014). “Using Wood Fiber Waste, Rice Husk Ash, and Limestone Powder Waste as Cement Replacement Materials for Lightweight Concrete Blocks.” Construction and Building Materials, Vol. 50, pp. 432-436. [9] Kalla, P., Misra, A., Gupta, R. C., Csetenyi, L., Gahlot, V. (2013). “Mechanical and Durability Studies on Concrete Containing Wollastonite–Fly ash Combination.” Construction and Building Materials, Vol. 40, pp. 1142-1150. [10] Sujjavanich, S., Suwanvitaya, P., Chaysuwan, D., Heness, G. (2017). “Synergistic Effect of Metakaolin and Fly ash on Properties of Concrete.” Construction and Building Materials, Vol. 155, pp. 830–837. [11] Al Menhosh, A., Wang, Y., Wang, Y., Augusthus-Nelson, L. (2018). “Long Term Durability Properties of Concrete Modified with Metakaolin and Polymer Admixture.” Construction and Building Materials, Vol. 172, pp. 41–51 [12] Miri, M., Beheshti Nezhad, H., Jafari, M. (2014). “Experimental Investigation on Mechanical Properties of Concrete Containing Nano Wollastonite and Modeling with GMDH- Type Neural Networks.” (in Persian), Amirkabir Journal of Science & Research (Civil & Environmental Engineering), Vol. 46, Issue 2, pp. 49- 51. [13] Ni, T., Zhang, L., Yuan, B. (2011). “Influence of Wollastonite or Plant Fiber on Performance of Autoclaved Cement Concrete.” Applied Mechanics and Materials, Vol. 99-100, pp. 692-695. [14] Kalla, P., Rana, A., Chad, Y. B., Misra, A., Csetenyi, L. (2015). “Durability Studies on Concrete Containing Wollastonite.” Journal of Cleaner Production, Vol. 87, pp. 726-734. [15] Soliman, A. M., Nehdi, M. L. (2014). “Effects of Shrinkage Reducing Admixture and Wollastonite Microfiber on Early-Age Behavior of Ultra-High Performance Concrete.” Cement and Concrete Composites, Vol. 46, pp. 81-89. [16] Zhang, L. C. (2013). “Durability of Concrete Containing Wollastonite and Fly Ash.” Advanced Materials Research, Vol. 800, pp. 361-364. [17] Wu, F., Gong, J. h., Zhang, Z. (2014). “Calculation of Corrosion Rate for Reinforced Concrete Beams Based on Corrosive Crack Width.” Journal of Zhejiang University SCIENCE A, Vol. 15, Issue 3, pp. 197-207. [18] Cao, Ch., Cheung, M.M.S., Chan, B.Y.B. (2013). “Modelling of Interaction Between Corrosion-Induced Concrete Cover Crack and Steel Corrosion Rate.” Corrosion Science, Vol. 69, pp. 97–109 [19] Rodriguez, J., Ortega, L.M., Casal, J., Diez, J.M. (1996). “Corrosion of Reinforcement and Service Life of Concrete Structures.” Durability of Building Materials and Components, Vol. 7, Issue 1, pp. 117–126. [20] Vidal, T., Castel, A., François, R. (2004). “Analyzing Crack Width to Predict Corrosion in Reinforced Concrete.” Cement and Concrete Research, Vol. 34, pp. 165–174. [21] Zhang, R., Castel, A., François, R. (2010). “Concrete Cover Cracking with Reinforcement Corrosion of RC beam During Chloride-Induced Corrosion Process.” Cement and Concrete Research, Vol. 40, pp. 415–425. [22] Khan, I., François, R., Castel, A. (2014). “Prediction of Reinforcement Corrosion Using Corrosion Induced Cracks Width in Corroded Reinforced Concrete Beams.” Cement and Concrete Research, Vol. 56, pp. 84–96 [23] Li, H., Li, B., Jin, R., Li, Sh., Yu, J-G. (2018). “Effects of Sustained Loading and Corrosion on the Performance of Reinforced Concrete Beams.” Construction and Building Materials, Vol. 169, pp. 179–187. [24] Ye, H., Fu, Ch., Jin, N., Jin, X. (2018). “Performance of Reinforced Concrete Beams Corroded under Sustained Service Loads: A Comparative Study of Two Accelerated Corrosion Techniques.” Construction and Building Materials, Vol. 162, pp. 286–297. [25] Malumbela, G., Moyo, P., Alexander, M. (2012). “Longitudinal Strains and Stiffness of RC Beams under Load as Measures of Corrosion Levels.” Engineering Structures, Vol. 35, pp. 215-227. [26] Kim, Y. Y., Kim, J. M., Bang, J.-W., Kwon, S.-J. (2014). “Effect of Cover Depth, W/C Ratio, and Crack Width on Half Cell Potential in Cracked Concrete Exposed to Salt Sprayed Condition.” Construction and Building Materials, Vol. 54, pp. 636-645. [27] ASTM C 876. (2015). “Standard Test Method for Half Cell Potential of Reinforcing Steel in Concrete.” West Conshohocken, PA: ASTM International. [28] Nygaard, P. V. (2008). “Non-Destructive Electrochemical Monitoring of Reinforcement Corrosion.” Phd thesis, Department of Civil Engineering, Technical University of Denmark. [29] Madandoust, R., Bungey, J. H., Ghavidel, R. (2012). “Prediction of the Concrete Compressive Strength by Means of Core Testing Using GMDH-Type Neural Network and ANFIS Models.” Computational Materials Science, Vol. 51, pp. 261–272. [30] Du, Y., Cullen, M., Li, C. (2013). “Structural Performance of RC Beams under Simultaneous Loading and Reinforcement Corrosion.” Construction and Building Materials, Vol. 38, pp. 472–481. [31] El Maaddawy, T., Soudki, Kh., Topper, T. (2005). “Long-Term Performance of Corrosion-Damaged Reinforced Concrete Beams.” ACI Structural Journal, Vol. 102, Issue 5, pp. 649-656. [32] ASTM C150. (2009). “Standard Specification for Portland Cement.” West Conshohocken, PA: ASTM International. [33] Balaguru, P., Chong, K. (2008). “Nanotechnology and Concrete: Research Opportunities.” In Nanotechnology of concrete: Recent Developments and Future Perspectives (ACI SP-254), Detroit, MI: American Concrete Institute. [34] Sanchez, F., Sobolev, K. (2010). “Nanotechnology in Concrete – a Review.” Construction and Building Materials, Vol. 24, pp. 2060–2071. [35] ASTM C 618. (2015). “Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete.” West Conshohocken, PA: ASTM International. [36] ASTM C33. (2016). “Standard Specification for Concrete Aggregates.” West Conshohocken, PA: ASTM International. [37] ASTM C494/C494M-10. (2010). “Standard Specification for Chemical Admixtures for Concrete.” West Conshohocken, PA: ASTM International. [38] ASTM C 143. (2001). “Standard Test Method for Slump of Hydraulic-Cement Concrete.” West Conshohocken, PA: ASTM International. [39] BS 1881: Part 116. (1983). “Testing Concrete: Method for Determination of Compressive Strength of Concrete Cubes.” British Standard Institution (BSI). [40] El Maaddawy, T., Soudki, Kh. (2003). “Effectiveness of Impressed Current Technique to Simulate Corrosion of Steel Reinforcement in Concrete.” Journal of Material in Civil Engineering, Vol. 15, Issue 1, pp. 41-47. [41] Malumbela, G., Moyo, P., Alexander, M. (2012). “A Step Towards Standardising Accelerated Corrosion Tests on Laboratory Reinforced Concrete Specimens.” Journal of the South African institution of civil engineering, Vol. 54, Issue 2, pp. 78–85. [42] Rinaldi, Z., Imperatore, S., Valente, C. (2010). “Experimental Evaluation of the Flexural Behavior of Corroded P/C Beams.” Construction and Building Materials, Vol. 24, pp. 2267–2278. [43] ASTM G1. (2003). “Standard Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens.” West Conshohocken, PA: ASTM International. [44] DuraCrete-Final Technical Report. (2000). “The European Union-Brite EuRam III Research Project: Probabilistic Performance Based Durability Design of Concrete Structures.” Document BE95-1347/R17, CUR, Gauda. [45] Zhang, R., Castel, A., Francois, R. (2009). “Serviceability Limit State Criteria Based on Steel–Concrete Bond Loss for Corroded Reinforced Concrete in Chloride Environment.” Materials and Structures, Vol. 42, pp. 1407–1421. | ||
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