Browse > Article
http://dx.doi.org/10.14190/JRCR.2018.6.4.245

Relationship between Crack Width and Gas Diffusion Coefficient of Cracked Acrylic Specimens  

Lee, Do-Keun (Department of Civil Engineering, Chung-nam University)
Lim, Min-Hyuk (Department of Civil Engineering, Chung-nam University)
Shin, Kyung-Jun (Department of Civil Engineering, Chung-nam University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.6, no.4, 2018 , pp. 245-251 More about this Journal
Abstract
Recently, as the importance of structural maintenance has been increased, studies on self - healing concrete technology are being actively carried out. On the other hand, test for evaluating the self-healing performance is not standardized yet. Although visual test is used as a basic method for measuring crack widths, it is difficult to observe the crack width inside the specimen, and there is a disadvantage that only the local measurement of the surface can be measured due to the inhomogeneous cracking characteristics. Although permeability test has been widely used as an indirect method for measuring crack width, there is a problem due to the viscosity of water, and also a possibility that the internal material of the specimen may be eluted during the test. In this study, we propose a crack width evaluation method using gas diffusion characteristics. Idealized straight cracks were fabricated by acrylic and the diffusion coefficients of specimens were analyzed with respect to crack width and thickness. The experimental results show that the crack width and the diffusion coefficient are in a linear relationship and that the thickness and diffusion coefficient are inversely related.
Keywords
Oxygen diffusion; Crack; Diffusion coefficient;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Abbas, A., Carcasses, M., Ollivier, J.P. (1999). Gas permeability of concrete in relation to its degree of saturation, Materials and Structures, 32, 3-8.   DOI
2 Chen, W., Skoczylas, F. (2010). "Gas permeability of macro-cracked concrete: effect of temperature and water saturation," 7th International Conference on Fracture Mechanics of Concrete and Concrete Structures, FRAMCOS7, Jeju, Korea.
3 Choi, S.W, Bae, W.H., Lee, K.M., Shin, K.J. (2017). Correlation between crack width and water flow of cracked mortar specimens measured by constant water head permeability test, Journal of the Korea Concrete Institute, 29(3), 267-273 [in Korean].   DOI
4 Edvardsen, C. (1999). Water permeability and autogenous healing of cracks in concrete, ACI Materials Journal, 96(4), 448-454.
5 Houaria, M.B.A., Abdelkader, M., Marta, C., Abdelhafid, K. (2017). Comparison between the permeability water and gas permeability of the concretes under the effect of temperature, Energy Procedia, 139, 725-730.   DOI
6 Jacobs, F. (1998). Permeability to gas of partially saturated concrete, Magazine of Concrete Research, 50(2), 115-121.   DOI
7 Kim, C.H. (2001). Chemistry Dictionaries, Sehwa pub.
8 Lee, D.K., Shin, K.J. (2017). "Crack width evaluation of concrete using gas diffusion experiment," Korean Society of Civil Engineers.
9 Picandet, V., Khelidj, A., Bastian, G. (2001). Effect of axial compressive damage on gas permeability of ordinary and high performance concrete, Cement and Concrete Research, 31, 1525-1532.   DOI
10 Mehta, P.K., Monteiro, P.J.M. (2014). Concrete, Microstructure properties and Materials, Third edition, McGraw-hill, NewYork.
11 Picandet, V., Khelidj, A., Bellegou, H. (2009). Crack effects on gas and water permeability of concretes, Cement and Concrete Research, 39(6), 537-547.   DOI
12 Rooij, M.D., Tittelboom, K.V., Belie, N.D., Schlangen, E. (2013). State-of-the-Art Report of RILEM Technical Committee 221-SHC: Self-Healing Phenomena in Cement-Based Materials, RILEM stats of the art report, 11.
13 Wang, K., Daniel, C.J., Surendra, P.S., Alan, F.K. (1997). Permeability study of cracked concrete, Cement and Concrete Research, 27(3), 381-393,   DOI
14 Shin, K.J., Bae, W.H., Kim, S.W., Lee, K.M. (2016). "Validation of permeability test for crack width assessment of concrete," healCON, TU Delft, Netherlands.
15 Tittarelli, F. (2009). Oxygen diffusion through hydrophobic cement-based materials, Cement and Concrete Research, 39(10), 924-928.   DOI
16 Villani, C., Loser, M., Martine, J.W., Carmelo, D.B., Lura, P., Weiss, W.J. (2014). An inter lab comparison of gas transport testing procedures: Oxygen permeability and oxygen diffusivity, Cement and Concrete Composites, 53, 357-366.   DOI
17 Wu, Z., Wong, H.S., Buenfeld, N.R. (2017). Transport properties of concrete after drying-wetting regimes to elucidate the effects of moisture content, hysteresis and microcracking, Cement and Concrete Research, 98, 136-154.   DOI