Abstract
In Australia, polymers have been used as pavement material stabilizer or dust suppressant for unsealed roads. However, the use of polymers, as stabilizers of pavement materials, has not been fully accepted by Australian Road Authorities as a standard practice since they do not have relevant design processes. Therefore, this study has been carried out to better understand the benefits of using a polyacrylamide-based additive (PAM) in stabilizing pavement construction materials. In this study, a synthetic PAM was used to stabilize three types of soil used in unsealed pavement construction. Unconfined Compressive Strength, California Bearing Ratio and erosion tests were conducted to evaluate the performance of soils treated with PAM. The results showed a significant overall increase in strength for all soil types with varying degrees. The results also showed improvements in bearing capacity of all the treated soils and their erosion resistance.
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Acknowledgement
The authors would like to acknowledge the contribution of Earthco projects Pty Ltd, particularly Mr. Mark Holding, for providing the stabilizer additive for this research.
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Georgees, R.N., Hassan, R.A. (2019). Stabilization of Subgrade Soil Using Polyacrylamide-Based Additive. In: Shehata, H., Poulos, H. (eds) Latest Thoughts on Ground Improvement Techniques. GeoMEast 2018. Sustainable Civil Infrastructures. Springer, Cham. https://doi.org/10.1007/978-3-030-01917-4_8
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DOI: https://doi.org/10.1007/978-3-030-01917-4_8
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