Typical properties of proprietary thin asphalt surfacing systems

Thin Hot Mixture Asphalt Concrete Overlays (THMACO’s) are comprised of a thin layer less than one inch hot mix asphalt concrete layer and a binder material/tack coat. The uses of thin layer are necessary to compromise with the environment issue especially to protect the natural resources and save the energy used during asphalt construction. THMACO’s can be used as preventative maintenance on pavement preservation or as a new surface on a pavementconstruction. This layeris usually regarded as non-structural layer at pavement design. However, this paper presents the structural assessment of this materials and their comparison to the conventional asphalt concrete mixtures. This research was conducted based on indirect tensile strength (ITS), unconfined compressive strength (UCS) and indirect tensile stiffness modulus (ITSM) of thin hot mixture asphalt. The results show that the thin hot mixture asphalt has performed slightly different on the Marshall and structural properties compare to conventional asphalt concrete.

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“…Thin HMA overlay applications on bridge decks has also been reported in the literature and is widely practiced in Europe [4,5].…”

Section: Introductionmentioning

confidence: 99%

The Structural Properties Assessment of Thin Hot Mixture Asphalt for Pavement Preservation

Setyawan

Elshawesh

As’ad

2015

AMM

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“…It contributes to the aesthetic appearance of the final layer of the pavement structure and, while not being a structural layer, it contributes to the strength and water resistance, ride comfort, and noise reduction [3,4]. Numerous positive international examples, in which this type of asphalt surfacing is used for wearing layers of rehabilitated or maintained roads, testify to their applicability regardless of climatic or geographic position [5][6][7][8][9][10][11][12]. However, there are certain requirements that must be met so that this layer can be considered a proper surfacing of the pavement structure.…”

Section: Introductionmentioning

confidence: 99%

Influence of granulometric composition on the properties of thin-layer asphaltconcrete

2014

JCE

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Influence of grading on the thin-layer asphalt concrete properties Results obtained by laboratory testing of samples for preparation of the thin-layer asphalt surfacing BBTM (béton bitumineux très mince), labelled BBTM 11B PmB 45/80-65, are presented in the paper. The testing was conducted to determine dependence of variable asphalt mix grading on the realisation of physical and mechanical properties of samples-stability, stiffness, density, voids content, and percent voids filled with asphalt. Test results obtained show that even minimum variations in the mineral mix grading have a significant impact on each tested property of the asphalt mix.

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Typical properties of proprietary thin asphalt surfacing systems

Cited by 2 publications

References 1 publication

The Structural Properties Assessment of Thin Hot Mixture Asphalt for Pavement Preservation

The Structural Properties Assessment of Thin Hot Mixture Asphalt for Pavement Preservation

Influence of granulometric composition on the properties of thin-layer asphaltconcrete

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