BACKGROUND The aim of the present work was to investigate the relative importance of socio-demographic and physical health status factors for subjective functioning, as well as to examine the role of social support. METHODS A cross-sectional health survey was carried out in a Greek municipality. 1356 adults of the general population were included in the study. Personal interviews were conduct...

Incorporating fibers into asphalt mixtures as additives and stabilizers can significantly enhance the performance of pavements. This study aimed to analyze impact using basalt bamboo modifiers on properties mastics. The effects different types rutting resistance, fatigue elastic recovery, low-temperature cracking were tested frequency scanning, linear amplitude scanning (LAS), multiple stress c...

Rubberized asphaltic materials have been frequently combined with warm-mix asphalt technologies to tackle the issues of high energy consumptions and emissions during construction. Effective accurate characterization binder properties is conducive improvement long-term pavement performance. The current study aims quantify effects rubber content additives on rutting thermal cracking performance c...

The chemical–physical hybrid cross-linked double network gel poly (acrylamide-co-acrylic acid)/Sodium alginate/Fe3+ (P(AM-co-AA)/SA/Fe3+, simplified as P-gel) was synthesised by free radical polymerisation combined with hydrogen bonding and ion coordination, which in turn compounded styrene–butadiene-styrene (SBS) to prepare P-gel gel/SBS modified asphalt. FT-IR, UV, XRD SEM analyses confirmed ...

Surface hot-in place recycling of asphalt mixtures has been conducted on Finnish roads for several years. The procedure is performed either in full-lane('remix') or shorter widths ('rut-remix'). In a 2020-2021 project, different mixture types were subjected to both kinds recycling; reference mixtures, and modified with aramid fibres, FEP elastomer pellets, polymer, Storelastic rubber additive, ...

Nanomaterials exhibit novel properties and profound attributes as an additive in asphalt binder modification. However, the application of nano-silica binders mixture modification is still limited, further research required. Along these lines, this work, with a content from 2% to 8% increment was utilized modifying bitumen type C320, which considered most conventional used Western Australia road...

In order to produce high-viscosity and high-toughness asphalt for ultra-thin overlays, the conventional cement was modified with high-content SBS micro carbon fiber (MCF). The performances of were studied by tests penetration, softening point, ductility, kinematic viscosity, multiple stress creep recovery (MSCR), dynamic shear rheometer (DSR) bending beam (BBR). Mixture properties rutting, low-...

This study explores the effects of polyphosphoric acid (PPA) on rheological performance styrene butadiene (SBS) and crumb rubber (CR) modified asphalt binders at high temperatures. Four PPA concentrations were selected: 0.4%, 0.8%, 1.2%, 1.6% by weight virgin asphalt, one SBS binder with 5% was used as a reference binder. Laboratory tests performed to simulate short-term long-term aging. Temper...

Bitumen emulsion has been widely used as the tack coat and surface treatment material for asphalt pavement. A major advantage of this is it does not require heating during construction. However, faces concern low mechanical strength, especially at high service temperatures. To improve strength bitumen emulsion, various research efforts have made to use waterborne epoxy resin a modifier produce ...