The performance characteristics of four 24-inch wheelchair tires are considered; one pneumatic and three airless. Specifically, two new airless polyurethane foam tires (circular and tapered cross-section) were compared to both a molded polyisoprene tire and a rubber pneumatic tire. Rolling resistance, coefficient of static friction, spring rate, tire roll-off, impact absorption, wear resistance...

This article describes an experimental study aimed at investigating the potential use of recycled rubber granulate from waste tires fractions 0/1 and 1/3 mm in cement composites as a 100% replacement for natural aggregates. The development production new building materials represents important aspect sustainability protection environment. is focused on sound-absorbing thermal-insulating propert...

This study set out to examine the effects of studded tires on fatal crashes on roads covered with ice or snow in Sweden and also to investigate the extra benefits of electronic stability control (ESC) during the winter months. Two different studies are presented in this paper. Both studies used an induced exposure approach. In the main study, 369 in-depth studies of fatal crashes with passenger...

This study has been initiated to quantify the release of the Polycyclic Aromatic Hydrocarbon (PAH) species from Styrene· Butadiene Copolymer (SBR) during gasification. The identification and quantification has been detennined experimentally using Gas Chromatography/ Mass Spectroscopy (GC/ MS) coupled to a Thenno-Gravimetric Analysis (TGA) unit. SBR samples were pyrolysed in a TGA unit in a Nz a...

Wheel numeric and different versions of mobility numbers are important models for predicting the rolling resistance. In this study, data related to the rolling resistance of cross ply and radial ply tires were compared with the resultant values from several models. Also, the preciseness of models in rolling resistance prediction was evaluated. For this purpose F test and 1-1 line method (p≥ 0.0...

The pyrolysis–catalysis process of waste tires has been reported to produce high value carbon nanomaterials. Tire pyrolysis oils contain a wide range aliphatic and aromatic compounds. To further investigate the production nanomaterials from tires, model compounds have investigated with 10 wt % Ni/Al2O3 catalyst determine their influence on (hexadecane, decane, styrene, naphthalene, phenanthrene...