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The effect of self-healing additive on the durability of cracked concrete | ||
| International Journal of Nonlinear Analysis and Applications | ||
| مقاله 24، دوره 15، شماره 5، مرداد 2024، صفحه 291-296 اصل مقاله (886.76 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22075/ijnaa.2023.30771.4488 | ||
| نویسندگان | ||
| Mahan Mohammadzadeh1؛ Mehdi Nezhadnaderi* 2؛ Mehdi Ebadi1؛ Arash Totonchi1 | ||
| 1Department of Civil Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran | ||
| 2Department of Civil Engineering, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran | ||
| تاریخ دریافت: 03 اسفند 1401، تاریخ بازنگری: 08 خرداد 1402، تاریخ پذیرش: 21 خرداد 1402 | ||
| چکیده | ||
| Self-healing techniques are presented in three different ways: The first application is the use of bacteria to calcite in concrete cracks. In this way, relatively large cracks can be filled in reinforced concrete. This method does not improve the strength of the structure, but by filling the crack, the reinforcement path is blocked. This stops the entry of liquids and ions that start to corrode the reinforcement and thus increase the compressive strength but decrease the electrical resistivity of the structure. With this method, cracks can be filled and leakage can be prevented. In designs that use a self-healing additive such as Mix designation 7, the time interval obtained from the accelerated corrosion test between the cracked and intact specimens is reduced. Compressive strength in cracked and intact specimens in these designs is higher than in other designs. The use of more superplasticizers and more Silica fume are effective in these amounts. Its low electrical resistance can lead to increased corrosion intensity thus more superplasticizers in Plan 7 is not preferable to Plan 4. Low electrical resistance can lead to increased corrosion intensity thus Plan 4 is preferable to Plan 7. | ||
| کلیدواژه‌ها | ||
| Nanotechnology؛ Compressive strength؛ Self healing؛ Silica fume؛ electrical resistance | ||
| مراجع | ||
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[1] D. Aggelis and T. Shiotani, Repair evaluation of concrete cracks using surface and through-transmission wave measurements, Mater. Sci. Cement Concrete Composit. 29 (2007), no. 9. [2] C. ASTM, 494 ”Standard specification for chemical admixtures for concrete” annual book of ASTM standards, annual book of ASTM standards, concrete and mineral aggregates, Philadelphia, PA, USA, Amer. Soc. Test. Mater. 4 (1999), no. 2, 251–259. [3] A.S.T.M. Standard, Standard specification for Portland cement, ASTM International, West Conshohocken, PA, 2009. [4] A.S.T.M. Committee C-9 on Concrete and Concrete Aggregates, Standard specification for silica fume used in cementitious mixtures, ASTM International, 2011. [5] C. Edvardsen, Water permeability and autogenous healing of cracks in concrete, ACI Mater. J. 96 (1999), 448. [6] K. Hayakawa and S. Murakami, Thermodynamical modeling of elastic-plastic damage and experimental validation of damage potential, Int. J. Damage Mech. 6 (1997), 333–363. [7] H.M. Jonkers, A. Thijssen, G. Muyzer, O. Copuroglu and E. Schlangen, Application of bacteria as self-healing agent for the development of sustainable concrete, Ecolog. Eng. 36 (2010), no. 2, 230–235. [8] V.C. Li, Y.M. Lim and Y.W. Chan, Feasibility of passive intelligent self-healing cement composite, Composit. Part B: Engin. 29 (1998), no. 6, 819–827. [9] W. Muynck, N. De Belie and W. Verstraete, Microbial carbonate precipitation in construction materials: A review, Ecolog. Eng. 36 (2010), no. 2, 118–136. [10] Y. Qing, Z. Zenan, K. Deyu and C. Rongshen, Influence of nano-SiO2 addition on properties of hardened cement paste as compared with silica fume, Construct. Build. Mater. 21 (2007), no. 3, 539–545. [11] S.A. Reddy, A study on the performance of the bacterial concrete embedded with bacillus subtilis, Thesis (PhD), Jawaharlal Nehru Technological University, Kukatpally, Hyderabad, India, 2010. [12] E. Schlangen and C. Joseph, Self-healing processes in concrete, S.K. Ghosh (Ed.), Self-healing materials: fundamentals, design strategies and applications, Weinheim: Wiley-VCH, 2008. [13] N. Ter Heide, Crack healing in hydrating concrete, MSc thesis, Delft University of Technology, The Netherlands, 2005. [14] K. Van Tittelboom, N. De Belie, W. De Muynck and W. Verstraete, Use of bacteria to repair cracks in concrete, Cement Concrete Res. 40 (2010), no. 1, 157–166. | ||
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