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Density profile of hot mix asphalt layer during compaction with various types of rollers and lift thickness

The effects of different compactors and lift thickness on hot mix asphalt (HMA) have been persistently discussed among asphalt experts. In many cases, pavements paved with the high-in-place air voids permit water to penetrate the permeable pavement causing an increased tendency for pavement deformat...

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Main Authors: Hainin, Mohd. Rosli, Oluwasola, Ebenezer, Brown, E. Ray
Format: Article
Published: Elsevier Ltd 2016
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utm.my/id/eprint/69141/
http://dx.doi.org/10.1016/j.conbuildmat.2016.05.129
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spelling my.utm.691412017-11-20T08:52:12Z http://eprints.utm.my/id/eprint/69141/ Density profile of hot mix asphalt layer during compaction with various types of rollers and lift thickness Hainin, Mohd. Rosli Oluwasola, Ebenezer Brown, E. Ray TA Engineering (General). Civil engineering (General) The effects of different compactors and lift thickness on hot mix asphalt (HMA) have been persistently discussed among asphalt experts. In many cases, pavements paved with the high-in-place air voids permit water to penetrate the permeable pavement causing an increased tendency for pavement deformation. The thin lifts have had problems achieving high density, which leads to high-in-place air voids. The present paper is aimed at evaluating the effects of different compactors, an 11-ton steel drum compactor and a 15-ton pneumatic tyre roller, on the HMA mat with different ratios of thickness to nominal maximum aggregate size (t/NMAS). In order to achieve this aim, seven field sections with a total 36 locations with distinct HMA mixes, thicknesses and rolling patterns were built. Each of the sections was approximately 40 m long and 3.5 m wide. The section was constructed with t/NMAS ratio varying from 2.0 at the beginning to 5.0 at the end of the section. The air temperature during construction varied from 26 °C to 35 °C. More so, for comparison purposes, the simulated HMA mat temperatures using MultiCool 3.0 software and their respective measured temperature were also taken. The results indicate that the optimum number of passes to achieve maximum density is four passes. This could be achieved by merely using the steel roller with vibratory mode. However, the introduction of rubber tyre roller during the intermediate rolling initially reduced the density by one to two percent but started to increase after several passes. Elsevier Ltd 2016 Article PeerReviewed Hainin, Mohd. Rosli and Oluwasola, Ebenezer and Brown, E. Ray (2016) Density profile of hot mix asphalt layer during compaction with various types of rollers and lift thickness. Construction and Building Materials, 121 . pp. 265-277. ISSN 0950-0618 http://dx.doi.org/10.1016/j.conbuildmat.2016.05.129 DOI:10.1016/j.conbuildmat.2016.05.129
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Hainin, Mohd. Rosli
Oluwasola, Ebenezer
Brown, E. Ray
Density profile of hot mix asphalt layer during compaction with various types of rollers and lift thickness
description The effects of different compactors and lift thickness on hot mix asphalt (HMA) have been persistently discussed among asphalt experts. In many cases, pavements paved with the high-in-place air voids permit water to penetrate the permeable pavement causing an increased tendency for pavement deformation. The thin lifts have had problems achieving high density, which leads to high-in-place air voids. The present paper is aimed at evaluating the effects of different compactors, an 11-ton steel drum compactor and a 15-ton pneumatic tyre roller, on the HMA mat with different ratios of thickness to nominal maximum aggregate size (t/NMAS). In order to achieve this aim, seven field sections with a total 36 locations with distinct HMA mixes, thicknesses and rolling patterns were built. Each of the sections was approximately 40 m long and 3.5 m wide. The section was constructed with t/NMAS ratio varying from 2.0 at the beginning to 5.0 at the end of the section. The air temperature during construction varied from 26 °C to 35 °C. More so, for comparison purposes, the simulated HMA mat temperatures using MultiCool 3.0 software and their respective measured temperature were also taken. The results indicate that the optimum number of passes to achieve maximum density is four passes. This could be achieved by merely using the steel roller with vibratory mode. However, the introduction of rubber tyre roller during the intermediate rolling initially reduced the density by one to two percent but started to increase after several passes.
format Article
author Hainin, Mohd. Rosli
Oluwasola, Ebenezer
Brown, E. Ray
author_facet Hainin, Mohd. Rosli
Oluwasola, Ebenezer
Brown, E. Ray
author_sort Hainin, Mohd. Rosli
title Density profile of hot mix asphalt layer during compaction with various types of rollers and lift thickness
title_short Density profile of hot mix asphalt layer during compaction with various types of rollers and lift thickness
title_full Density profile of hot mix asphalt layer during compaction with various types of rollers and lift thickness
title_fullStr Density profile of hot mix asphalt layer during compaction with various types of rollers and lift thickness
title_full_unstemmed Density profile of hot mix asphalt layer during compaction with various types of rollers and lift thickness
title_sort density profile of hot mix asphalt layer during compaction with various types of rollers and lift thickness
publisher Elsevier Ltd
publishDate 2016
url http://eprints.utm.my/id/eprint/69141/
http://dx.doi.org/10.1016/j.conbuildmat.2016.05.129
_version_ 1643656013039009792
score 13.211869

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