Soil improvement withsugarcane bagasse ash : technical-economic viabilityfor tertiary roads

Valentina Abonía Balanta

Pontificia Universidad Javeriana

María Fernanda Serrano Guzmán

Pontificia Universidad Javeriana

Diego Darío Pérez Ruiz

Pontificia Universidad Javeriana

Introduction: Economic evaluation of soil subgrade improvement using sugarcane bagasse ash case study: Propal Road - La Cabaña Sugar Mill”, developed at the Pontifical Javeriana University of Cali in 2022.

Problem: Tertiary roads in Colombia are essential for mobility in rural areas and for the sugar industry, which generates waste such as sugarcane bagasse ash (SGBA).

Objective: To present the results of the economic and technical feasibility study of using sugarcane bagasse ash for soil improvement in tertiary roads.

Methodology: Characterization tests of natural soil state and modified Proctor, expansion index, CBR, and unconfined compression for stabilized soils at percentages of 5, 10, 15, and 20% of SGBA are carried out.

Results: The mechanical properties of the soil improve with additions of ash between 5% and 15%; however, the utilization of 15% of SGBA is proposed to favor the disposal of a significant volume of this waste.

Conclusion: The technical and economic feasibility of using SGBA as a promising solution to improve tertiary roads in Colombia is demonstrated.

Originality: Viability of implementing sugarcane bagasse ash on rural roads of sugar mills and agricultural areas with production of this type of waste.

Limitations: Similar studies should be carried out for each region to confirm the appropriate percentage for subgrade stabilization using SGBA.

Keywords: stabilization, ash, sugarcane, improvement, tertiary roads
Published
2024-10-15
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How to Cite

[1]
V. Abonía Balanta, M. F. Serrano Guzmán, and D. D. Perez Ruiz, “Soil improvement withsugarcane bagasse ash: technical-economic viabilityfor tertiary roads”, ing. Solidar, vol. 20, no. 2, pp. 1–18, Oct. 2024, doi: 10.16925/2357-6014.2024.02.06.
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