Title: Stabilization Assessment of Aggregates in Asphalt Concrete Mixtures
Abstract: Aggregates particle size and gradation assessment of asphalt concrete mixtures produced in the south-western part of Nigeria have been investigated for mechanical stabilization. Samples of asphalt concrete produced were collected from three selected asphalt plants (A, B, and C) all located in the south-western part of Nigeria. Bitumen Extraction and Aggregates Sieve Analysis were carried out on the collected samples. The result of the investigation has shown that from each of the asphalt plant, the maximum aggregate size used in the production of asphalt concrete was 12.5 mm while the nominal size was 9.5 mm. However, the asphalt concrete paving materials investigated were of a dense mixture because of the presence of mineral materials that retained on sieve openings 2.36 mm, 0.3 mm, 0.15 mm and 0.075 mm. Sample from asphalt plant A was with aggregates gradings approaching the maximum amount permitted to pass the 2.36 mm sieve openings and this will result in pavement surfaces having comparatively fine texture. While samples from asphalt plants B and C were with aggregates gradings approaching the minimum amount passing the 2.36 mm sieve openings which will result in surfaces with comparatively coarse texture.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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Cited By Count: 2
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