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Plasticity, Strength and Permeability of Reclaimed Asphalt Pavement and Lateritic Soil Blends

Akinwumi, I. I. (2014) Plasticity, Strength and Permeability of Reclaimed Asphalt Pavement and Lateritic Soil Blends. International Journal of Scientific & Engineering Research, 5 (6). pp. 631-636. ISSN 2229-5518

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This paper presents the results of laboratory evaluation of the effects of the addition of reclaimed asphalt pavement (RAP), to an A-2 lateritic soil, on the plasticity, strength and permeability of the soil. The natural soil was classified as A-2-6(1), according to AASHTO classification system. RAP was added to the soil in 0, 4, 8 and 12%, by dry weight of the soil. Specific gravity, Atterberg limits, compaction, California bearing ratio (CBR), unconfined compression and permeability tests were conducted on each of the soil-RAP blends. Results obtained show that as RAP content in the blend increased, the plasticity index, optimum moisture content, maximum dry unit weight, swell potential, unconfined compressive strength and permeability decreased while the specific gravity, soaked and unsoaked California bearing ratios increased. These results indicate that RAP effectively improved, especially, the plasticity and permeability of the soil. It also indicates that deformation should be a major design criterion while planning the use of lateritic soil-RAP blend as a road pavement layer material.

Item Type: Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment
Depositing User: Engr. Isaac Ibukun Akinwumi
Date Deposited: 30 Jun 2014 11:50
Last Modified: 30 Jun 2014 11:50

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