Sorptivity, swelling, shrinkage, compression and durability of quarry dust treated soft soils for moisture bound pavement geotechnics

The failure of pavement foundation materials as hydraulically bound materials is a worri-some condition facing pavement infrastructures in the developing world. Capillary action leads to swelling and shrinkage, compressive strength and durability problems, which result from sorptivity as a function of hydraulic exposure conditions. Pavement infrastructures a constantly interfaced with rise and fall of ground water level and capillary action hence a study on the sorptivity behaviour of quarry dust (QD) treated soft clay soils was carried out. Preliminary tests were conducted on the test materials for the purpose of charac-terization. The basic test results show that the test soils S1, S2 and S3 were classified asA-2-7, A-2-6 and A-7 soil groups respectively according to AASHTO classification system.Also, they were classified as poorly graded soils but test soils S1 and S2 were observed to be of high clay content (CH) according to USCS. The test soils were equally observed to be of highly plasticity and contains high free swell index properties, hence are expansive.

Keywords

Sorptivity, Durability, Quarry dust, Moisture bound pavement foundation, Subgrade geotechnics, Recycled materials

Citation

Onyelowe, K., Van, D. B., Eberemu, A., Xuan, M. N., Salahudeen, A. B., Ezugwu, C., ... & Ugorji, B. (2019). Sorptivity, swelling, shrinkage, compression and durability of quarry dust treated soft soils for moisture bound pavement geotechnics. Journal of Materials Research and Technology, 8(4), 3529-3538. https://doi.org/10.1016/j.jmrt.2019.06.029

URI

https://doi.org/10.1016/j.jmrt.2019.06.029
https://nru.uncst.go.ug/handle/123456789/4714

Collections

Engineering and Technology

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