By: Chaitali Isal, Ajay Sonawane, Prathmesh Kudve, Ayush Padlekar, and Yash Goshte Goshte
1Professor, Department of Civil, Saraswati College of Engineering, Uttar Pradesh, India
2Student, Department of Civil, Saraswati College of Engineering, Uttar Pradesh, India
This study examines the enhancement of cold mix asphalt (CMA) performance through the substitution of fly ash at varying percentages. Specifically, Marshal stability tests were conducted on CMA mixtures with fly ash content of 0%, 2.5%, 5%, and 7.5%. The results reveal a significant increase in peak loads, with the CMA mixture containing no fly ash achieving a peak load of 0.62 kN, while mixtures with 2.5%, 5%, and 7.5% fly ash exhibited peak loads of 8.80 kN, 9.59 kN, and 11.08 kN, respectively. This marked improvement underscores the beneficial impact of incorporating fly ash as a filler in CMA mixtures. Furthermore, the maximum flow values of the CMA mixtures also showed enhancement with the inclusion of fly ash. The CMA without fly ash had a maximum flow value of 2.83 mm, whereas the mixtures with 2.5%, 5%, and 7.5% fly ash demonstrated improved flow values of 4.15 mm, 3.84 mm, and 3.09 mm, respectively. These findings indicate that the addition of fly ash not only boosts the load bearing capacity but also enhances the deformability of the CMA mixtures. The study highlights the potential of fly ash as a sustainable and effective filler material in CMA, contributing to improved mechanical characteristics and reduced moisture susceptibility. The utilization of fly ash in CMA not only promotes sustainability by recycling industrial by-products but also aids in the construction of durable pavement structures. This research provides a foundation for further exploration into the use of alternative materials in pavement construction to enhance performance and sustainability.
Citation:
Refrences:
1. Joel Oliveira, Cláudia IG Ferreira, Paulo AA Pereira (2010) “Assessment of the performance of warm mix asphalts in road pavement. BMJ. 2008; 336(7646): 701–4p.
2. Hasan Taherkhani, et al (2016), Performance Evaluation of Cold Asphalt Mixtures Modified with Fly Ash; 185(10): 562–4p.
3. V. Seshadri Sekhar, et al. (2014),“ Influence of Fly Ash on the Properties of Cold Mix Asphalt”, E3S Web of Conferences 455, 03009 (2023) https://doi.org/10.1051/e3sconf/202345503009
4. M. Amirkhanian, et al (2000): Utilization of Fly Ash in Cold Mix Asphalt Concrete”, E3S Web of Conferences 455, 03009 (2023) https://doi.org/10.1051/e3sconf/202345503009
5. Anmar Dulaimi, Shakir Al-Busaltan (2022): A sustainable cold mix asphalt mixture comprising paper sludge ash and cement kiln dust, August 202214:10253
6. DOI:10.3390/su141610253
7. Anmar Dulaimi, Tariq Al-Mansoori (2021): The future of eco-friendly cold mix asphalt, Renewable and Sustainable Energy Reviews
8. Volume 149, October 2021, 111318, https://doi.org/10.1016/j.rser.2021.111318
9. Nyoman Arya Thanaya (2018): Evaluating and improving the performance of cold asphalt emulsion mixes, Civil Engineering Dimension, Vol. 9, No. 2, 64–69, September 2007
10. Swayam Siddha Dash, Mahabir Panda. (2018) : Influence of mix parameters on design of cold bituminous mix, Volume 191, 10 December 2018, Pages 376–385, https://doi.org/10.1016/j.conbuildmat.2018.10.002
11. Sireesh Saride, A Deepti, T Someshwar Rao, J Sarath Chandra Prasad, R Dayakar Babu (2018): Evaluation of fly-ash-treated reclaimed asphalt pavement for the design of sustainable pavement bases: An Indian perspective, 45(4):401–411, DOI:10.1007/s40098-014-0137-z