Stone mastic asphalt pavements are preferred worldwide as they more resistant to heavy traffic loads. The stone pavement design involves the use of 70-80% coarse aggregate, 8-12% filler, 5-7% binder, and approximately 0.3-0.5% fibre. gap-graded structure high binder content cause bitumen drain down from aggregates. Marshall test Schellenberg drainage performed in this research on samples prepar...

Marshall Test design methods are used to design TLA modified asphalt mixture and base asphalt mixture respectively, and their pavement performance is tested. The results showed that there is a transforming coefficient of 1.15 between OAC of 40% TLA modified asphalt mixture and that of base asphalt mixture, and ultimate gradation of the TLA modified asphalt mixture is finer than previous gradati...

Reclaimed asphalt pavement is used as an aggregate in the cold recycling of asphalt paving mixtures. The more common method involves a process in which the asphalt pavement is recycled in-place (cold in-place recycling), CIPR. Where the Journal of Engineering Research (University of Tripoli) Issue (20) September 2014 67 reclaimed asphalt pavement is combined without heat with foamed bitumen and...

Abstract The performance of asphalt concrete pavements (ACP) is greatly related to the rate rutting. Stone dust mostly used as a filler in ACP. Bagasse ash being cementitious nature, and costless waste can also be filler. overall aim select suitable for better pavements. effectiveness locally available bagasse examined terms its effect on job mix formula, stability, rutting depth, rise temperat...

The interlaminar shear characteristics of a polyurethane (PU) mixture composite structure, quantitatively calculating its energy consumption and carbon emissions were analyzed in this study. Inclined tests carried out on thirteen structures without treatment, high-temperature water bath accelerated loading conducted three structures; further, the strength tire trace position after test was test...

BACKGROUND Asphalt workers are exposed to polyaromatic hydrocarbons (PAHs) from hot mix asphalt via both inhalation and dermal absorption. The use of crumb rubber modified (CRM) asphalt may result in higher exposure to PAHs and more adverse effects. Our aim is to assess occupational exposure to PAHs from conventional and CRM asphalt paving by measuring PAH metabolites in urine, and to investiga...

To solve the problem of rutting and fatigue damage to asphalt pavement, rutting and fatigue performances of Qingchuan rock asphalt modified asphalt were studied, based on the dynamic shear rheometer test, the dynamic creep test, the rutting test, the indirect tensile fatigue test, the small-sized acceleration loading test, the compressive resilient modulus test, the BISAR3.0 Program and the rut...

Crushed stone bases are widely used for low-volume roads. However, shear strength of the crushed stone materials can be vastly improved by confining the material in geocellular confinement systems or geocells. Geocells are 3-dimensional honeycomb-like structures. The objective of this study was to test a geocell design with crushed stone (AB-3) in-fill and a thin hot-mix asphalt (HMA) surface l...

The construction control indices were commonly used to ensure the quality of asphalt layers in process. However, relationship between and low-temperature performance is not clear. purpose this paper was investigate effect variations on mixtures determine key indices, propose method for monitoring these using Building Information Modeling (BIM) platform. evaluated by semicircular bend (SCB) test...