Słowa kluczowe
basalt minibars
post-cracking behavior
fracture parameters
Jak cytować
Abstrakt
The paper concerns the influence of basalt minibars on the subcritical and critical behaviour of test specimens made of concrete with low-emission cement. Low-emission cement produces lower emissions of greenhouse gases and other pollutants than traditional cement. Analyses were conducted on changes in fracture mechanics parameters depending on the content of microfibers in the concrete mix (0, 2, 4, 8 kg/m³), the type of cement used, and the water-to-cement ratio (w/c). It was demonstrated that concrete reinforced with basalt microfibers exhibits increased resistance to crack initiation and propagation. An increase in the stress intensity factor was observed for CEMI 42.5R concretes at w/c=0.5 by 27%, at w/c =0.4 by 62%, and for CEM II 42.5R/A-V concretes at w/c=0.5 by 29%, and at w/c=0.4 by as much as 30%. It was shown that the addition of microfibers to concrete made with low-emission cement significantly increases the mechanical parameters of this material.
Bibliografia
Abbas Ashour Alaraza, H., Kharun, M., & Chiadighikaobi, P. C. (2022). The effect of minibars basalt fiber fraction on mechanical properties of high-performance concrete. Cogent Engineering, 9, 2136603. https://doi.org/10.1080/23311916.2022.2136603
Batog, M., Bakalarz, J., Synowiec, K., & Dziuk, D. (2022). Stosowanie cementów wieloskładnikowych w budownictwie. Budownictwo, Technologie, Architektura, 3.
Bordelon, A. C. (2007). Fracture behavior of concrete materials for rigid pavements system [Master Thesis]. University of Illinois at Urbana-Champaign. https://collections.lib.utah.edu/dl_files/84/76/8476870eec3fe0e68af4950a281444b11a5358d6.pdf
Branston, J., Das, S., Kenno, S. Y., & Taylor, C. (2016a). Influence of basalt fibres on free and restrained plastic shrinkage. Cement and Concrete Composites, 74, 182-190. https://doi.org/10.1016/j.cemconcomp.2016.10.004
Branston, J., Das, S., Kenno, S. Y., & Taylor, C. (2016b). Mechanical behaviour of basalt fibre reinforced concrete. Construction and Building Materials, 124, 878-886. http://dx.doi.org/10.1016/j.conbuildmat.2016.08.009
Determination of the fracture energy of mortars and concretes by means of three-point bend tests on notched beams. (1985). Materials and Structures, 18, 287-290. https://doi.org/10.1007/BF02472918
EN 12350-2:2019. Testing fresh concrete. Slump test. https://standards.iteh.ai/catalog/standards/cen/cf0e0511-2176-454c-948d-9e515f3a03f1/en-12350-2-2019
EN 12350-7:2019. TC - Tracked Changes. Testing fresh concrete. Air content. Pressure methods. https://standards.iteh.ai/catalog/standards/cen/444b4a93-2e0f-41e7-96e9-7d25505d78bd/en-12350-7-2019
EN 12390-13:2013. Testing hardened concrete. Determination of secant modulus of elasticity in compression. https://standards.iteh.ai/catalog/standards/cen/752cfc47-b32b-4c17-be4f-30dfee3af3ca/en-12390-13-2013
EN 12390-3:2009. Testing hardened concrete - Part 3: Compressive strength of test specimens. https://standards.iteh.ai/catalog/standards/cen/d1d94876-958b-4941-ade0-780076fc330a/en-12390-3-2009
EN 12390-5:2019. Testing hardened concrete - Part 5: Flexural strength of test specimens. https://standards.iteh.ai/catalog/standards/cen/5653c2c7-55a9-4bcb-8e13-5b1dfb0e3baf/en-12390-5-2019
Iyer, P., Kenno, S. Y., & Das, S. (2015). Mechanical Properties of Fiber-Reinforced Concrete Made with Basalt Filament Fibers. Journal of Materials in Civil Engineering, 27(11), 04015015. https://doi.org/10.1061/(ASCE)MT.1943-5533.0001272
Jenq, Y., & Shah, S. P. (1985). Two Parameter Fracture Model for Concrete. Journal of Engineering Mechanics, 111, 1227-1241. https://doi.org/10.1061/(ASCE)0733-9399(1985)111:10(1227)
Jiang, C., Fan, K., Wu, F., & Chen, D. (2014). Experimental study on the mechanical properties and microstructure of chopped basalt fibre reinforced concrete. Materials & Design, 58, 187-193. https://doi.org/10.1016/j.matdes.2014.01.056
Kabay, N. (2014). Abrasion resistance and fracture energy of concretes with basalt fiber. Construction and Building Materials, 50, 95-101. https://doi.org/10.1016/j.conbuildmat.2013.09.040
Kosior-Kazberuk, M., Krassowska, J., Vidales Barriguete, A., & Ramirez, C. P. (2018). Fracture parameters of basalt fiber reinforced concrete. Anales de Edificación, 4(3), 52-58. https://doi.org/10.20868/ade.2018.3800
Patnaik, A, Miller, L., Adhikari, S., & Standal, P. C. (2013). Basalt FRP Minibar Reinforced Concrete. Proceedings of the Fibre Concrete 2013, Prague, Czech Republic, 1-10. https://concrete.fsv.cvut.cz/fcproceedings/download/2013/Full_PATNAIK_Anil.pdf
Shah, S. P. (1990). Size-effect method for determinig fracture energy and process zone size of concrete. Materials and Structures, 23, 461-465. https://doi.org/10.1007/BF02472030
Słowik, M. (2019). The analysis of failure in concrete and reinforced concrete beams with different reinforcement ratio. Archive of Applied Mechanics, 89, 885-895. https://doi.org/10.1007/s00419-018-1476-5
Słowik, M., & Błazik-Borowa, E. (2011). Numerical study of fracture process zone width in concrete members. Architecture Civil Engineering Environment, 4(2), 73-78.
Wei, B., Cao, H., & Song, S. (2010). Tensile behavior contrast of basalt and glass fibers after chemical treatment. Materials & Design, 31(9), 4244-4250. https://doi.org/10.1016/j.matdes.2010.04.009
Utwór dostępny jest na licencji Creative Commons Uznanie autorstwa – Na tych samych warunkach 4.0 Miedzynarodowe.
Prawa autorskie (c) 2024 Czasopismo "Economics and Environment"