Investigation of Electrical Conductivity in Cement Mortars with Waste Iron Chips

Yıl 2023, Cilt: 15 Sayı: 3, 82 - 91, 31.12.2023

Ahmet Filazi Rustem Yilmazel Muharrem Pul

https://doi.org/10.29137/umagd.1252097

Öz

In this study, the electrical conductivity of cement mortars formed by additive waste iron chip was investigated. Mixtures with fixed water/cement (0.5) ratios and different ratios of iron chip were prepared. Cement mortars were prepared by adding 0%, 1%, 2%, 4%, 8% and 16% by weight of cement in the mixtures and waste iron chip in the range of 0.5 mm to 4 mm in size. Firstly, the flow test was applied to the cement mortars cured in normal water for 7 and 28 days and their flexure and compressive strengths were determined. Then, the electrical conductivity test was applied to the cement mortar samples. As a result, it was observed that the flow diameter values increased as the average length increased from 0.5 mm to 2 mm in 1% and 2% additive of waste iron chip. It was determined that 1% waste iron chip was higher at 4.54% compressive strength compared to the reference sample. As the amount of added waste iron chip increased, the electrical resistivity value in the samples decreased and the electrical conductivity value increased along with it. At the same time, it was determined that the added iron chip size also increased the electrical conductivity.

Anahtar Kelimeler

Waste iron chip, machinability, mechanical strength, electrical conductivity

Atık Demir Talaşlı Çimento Harçlarında Elektriksel İletkenliğin Araştırılması

Öz

Bu çalışmada, atık demir talaşı ikamesinin çimento harçlarının elektriksel iletkenlik üzerindeki etkisi araştırılmıştır. Sabit su/çimento (0,5) oranlarında ve farklı oranda demir talaşı içeren karışımlar hazırlanmıştır. Karışımlarda çimentonun ağırlıkça %0, %1, %2, %4, %8 ve %16 oranlarında ve boyutu 1mm ila 4 mm aralığında olan demir talaşı eklenerek çimento harçları hazırlanmıştır. Normal suda 7 ve 28 gün kürlenen çimento harçlarına ilk olarak yayılma deneyi uygulanmış, eğilme ve basınç dayanımları belirlenmiştir. Daha sonra çimento harcı numunelerine elektrik akımı uygulanmış ve numunelerdeki elektriksel öz dirençler arasındaki farklar ve iletkenlik değerleri belirlenmiştir. Sonuç olarak; çimento arasındaki boşluklar, demir talaşı ile doldurulduğunda elektriksel iletkenliğin arttığı görülmüştür. Atık demir talaşının boyutunun değişmesiyle elektriksel iletkenliğinin de değiştiği sonucuna varılmıştır. Atık demir talaşının katkı oranı ve boyutu arttıkça elektriksel iletkenliğinde arttığı görülmüştür.

Anahtar Kelimeler

atık demir talaşı, işlenebilirlik, mekanik dayanım, elektriksel iletkenlik

Kaynakça

• Alzaed, A.N. (2014) ‘Effect of Iron Filings in Concrete Compression and Tensile Strength’, International Journal of Recent Development in Engineering and Technology, 3(4), pp. 121–125.
• Anike, E.E. et al. (2020) ‘Effect of mix design methods on the mechanical properties of steel fibre-reinforced concrete prepared with recycled aggregates from precast waste’, Structures, 27, pp. 664–672. Available at: https://doi.org/10.1016/J.ISTRUC.2020.05.038.
• Bostanci, S.C., Limbachiya, M. and Kew, H. (2018) ‘Use of recycled aggregates for low carbon and cost effective concrete construction’, Journal of Cleaner Production, 189, pp. 176–196. Available at: https://doi.org/10.1016/J.JCLEPRO.2018.04.090.
• Domski, J. et al. (2017) ‘Comparison of the mechanical characteristics of engineered and waste steel fiber used as reinforcement for concrete’, Journal of Cleaner Production, 158, pp. 18–28. Available at: https://doi.org/10.1016/J.JCLEPRO.2017.04.165.
• Esquinas, A.R. et al. (2018) ‘Mechanical and durability behaviour of self-compacting concretes for application in the manufacture of hazardous waste containers’, Construction and Building Materials, 168, pp. 442–458. Available at: https://doi.org/10.1016/J.CONBUILDMAT.2018.02.138.
• Fisonga, M., Wang, F. and Mutambo, V. (2019) ‘Sustainable utilization of copper tailings and tyre-derived aggregates in highway concrete traffic barriers’, Construction and Building Materials, 216, pp. 29–39. Available at: https://doi.org/10.1016/J.CONBUILDMAT.2019.05.008.
• Huseien, G.F. et al. (2021) ‘Development of a sustainable concrete incorporated with effective microorganism and fly Ash: Characteristics and modeling studies’, Construction and Building Materials, 285, p. 122899. Available at: https://doi.org/10.1016/J.CONBUILDMAT.2021.122899.
• Kalpana, M. and Tayu, A. (2020) ‘Experimental investigation on lightweight concrete added with industrial waste (steel waste)’, Materials Today: Proceedings, 22, pp. 887–889. Available at: https://doi.org/10.1016/J.MATPR.2019.11.096.
• De la Colina Martínez, A.L. et al. (2019) ‘Recycled polycarbonate from electronic waste and its use in concrete: Effect of irradiation’, Construction and Building Materials, 201, pp. 778–785. Available at: https://doi.org/10.1016/J.CONBUILDMAT.2018.12.147.
• Li, H.N. et al. (2019) ‘Experimental research on dynamic mechanical properties of metal tailings porous concrete’, Construction and Building Materials, 213, pp. 20–31. Available at: https://doi.org/10.1016/J.CONBUILDMAT.2019.04.049.
• Li, J. et al. (2022) ‘Mechanical and conductive performance of electrically conductive cementitious composite using graphite, steel slag, and GGBS’, Structural Concrete, 23(1), pp. 533–547. Available at: https://doi.org/10.1002/suco.202000617.
• Li, W. et al. (2022) ‘Advances in multifunctional cementitious composites with conductive carbon nanomaterials for smart infrastructure’, Cement and Concrete Composites, 128, p. 104454. Available at: https://doi.org/10.1016/J.CEMCONCOMP.2022.104454.
• Liu, X. et al. (2020) ‘Comparison of the structural behavior of reinforced concrete tunnel segments with steel fiber and synthetic fiber addition’, Tunnelling and Underground Space Technology, 103, p. 103506. Available at: https://doi.org/10.1016/J.TUST.2020.103506.
• Mohammed Breesem, K. et al. (2022) ‘Properties of concrete using waste iron’, Materials Today: Proceedings [Preprint]. Available at: https://doi.org/10.1016/J.MATPR.2022.11.084.
• Shettima, A.U. et al. (2016) ‘Evaluation of iron ore tailings as replacement for fine aggregate in concrete’, Construction and Building Materials, 120, pp. 72–79. Available at: https://doi.org/10.1016/J.CONBUILDMAT.2016.05.095.
• EN, T. 196-1 Methods of Testing Cement–Part 1: Determination of Strength Turkish Standard Institution, Ankara (2016)
• EN, T. 197-1 Cement-Part 1: Composition, Specifications and Conformity Criteria for Common Cements Turkish Standard Institution, Ankara (2012)
• Wang, X. et al. (2018) ‘Development of a novel cleaner construction product: Ultra-high performance concrete incorporating lead-zinc tailings’, Journal of Cleaner Production, 196, pp. 172–182. Available at: https://doi.org/10.1016/J.JCLEPRO.2018.06.058.
• Xiao-, Z., Li, Q. and Fan, H. (2013) ‘C40 Effect of Iron Tailings Powder on Properties of C40 Concrete’, 32(2013), p. 2563.
• Yang, S. et al. (2021) ‘Preparation and properties of ready-to-use low-density foamed concrete derived from industrial solid wastes’, Construction and Building Materials, 287, p. 122946. Available at: https://doi.org/10.1016/J.CONBUILDMAT.2021.122946.