- 期刊
- OpenAccess
An Experimental Study on the Effectiveness of Chopped Basalt Fiber on the Fresh and Hardened Properties of High Strength Concrete
並列摘要
This research aimed to investigate the suitability of chopped basalt fibers for inducing ductility in High Strength Concrete (HSC). HSC offers a sustainable option to the rapidly growing construction industry particularly in long span bridges, high-rise structures together with other infrastructures. Until near past, efforts were made to achieve much higher compressive strength of HSC, which causes HSC being more brittle. In view of high brittleness of HSC many researchers focused on fiber reinforced concrete to induce ductility. In this study two series of mixes, one with 100% cement and the other with 80% cement with 20% fly ash were studied. In the both of series mixes, fiber content was varied as 0, 0.25, 0.75, 1, 2 and 3%, respectively. Concrete with 0% fibers is known as the control mix. Since, water/binder ratio and super-plasticizer content was kept constant. The tests result indicated that, slump of concrete mixes showed decline with the increment in the fiber content. The addition of chopped basalt fibers did not help to improve the compressive strength of HSC. However, fibers have improved tensile and flexural tensile strength of HSC, also the area under the stress strain curves increased, which are an indication of ductile mode of HSC as well as its toughness. Similarly, tensile to compressive strength and flexural to compressive strength ratio observed a continuous increment with the increase in fiber content as well as the areas under compressive stress-strain curves. In conclusion, chopped basalt fibers have shown their potential for producing ductile HSC.
延伸閱讀
- Talaei, S., Jafari, M., Tarfan, S., & Hashemlou, H. (2014). The Effect of Ratio of Aggregate to Cement Paste Volume on Structural Lightweight Concrete Strength, Viscosity, Density and Cost. Research Journal of Environmental and Earth Sciences, 6(9), 443-450. https://www.airitilibrary.com/Article/Detail?DocID=20410492-201409-201503100029-201503100029-443-450
- Fadhil, S., & Yaseen, M. (2015). The Effect of Adding Different Types of Natural Fibers on Mechanical Properties and Impact Resistance of Concrete. Research Journal of Applied Sciences, Engineering and Technology, 9(12), 1091-1096. https://www.airitilibrary.com/Article/Detail?DocID=20407467-201504-201506220037-201506220037-1091-1096
- 樊鵬（2016）。Feasibility Study of Applying the Deflection Measurement Technology to Identify the Prestress Force in Pre-stressed Concrete Beams〔碩士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU201603577
- Jang, S. J., Kang, D. H., Ahn, K. L., Park, W. S., Kim, S. W., & Yun, H. D. (2015). Feasibility of Using High-Performance Steel Fibre Reinforced Concrete for Simplifying Reinforcement Details of Critical Members. International Journal of Polymer Science, 2015(), 382-393-143. https://doi.org/10.1155/2015/850562
- 何郁姍（2016）。Study of the Durability of High Strength Concrete with Steel Fiber by Ponding Test and Salt Spray Test〔碩士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU201602404