background: very few studies have utilized specific criteria to assess mental disorders in brain tumor patients. this study aimed to diagnose mental disorders in this population using dsm-iv (depression, sleep, and mood) criteria. methods: from march 2007 to july 2009, the surgically treated patients with intracranial neoplasm were included in the study. these patients were examined in an ambul...

In-service pavement requires maintenance, it may be routine in nature, or major reconstruction. A is designed for an assumed period, after the expiry of design likely to fail structurally and therefore, would require a renewal extend life further. Even within service pavement, top wearing course subjected considerable distress due movement vehicles on it. Thus needs some Maintenance smooth move...

Rutting is one of the most common distresses in early damage to asphalt pavements. It can raise risk ride safety issues, accelerate pavement deterioration, and increase maintenance costs. To investigate factors that affect rutting resistance mixtures, internal (such as aggregate gradation, content, layer thickness), external (including temperature traffic loading), human compaction degree) were...

Moisture damage and low-temperature cracking are common distresses experienced by road pavement. Different types of modifiers, such as fibers, can be used to improve the quality asphalt pavements. In this paper, lignin glass fiber were selected additives enhance water- stability mixtures. The main objective study was evaluate composite effects adding a bituminous mix using experimental methods....

One of the most common pavement distresses in flexible is rutting, which mainly caused by heavy wheel load and various other factors. The prediction rutting depth important for safe travel long-term performance pavements. Factors that are considered this paper rut Temperature, Equivalent Single Axle Load, Resilient modulus, Thickness hot mixed asphalt. input data all factors collected from Long...

In the present study, effects of adding fibers and Reclaimed Asphalt Pavement (RAP) on low temperature performances open graded asphalt mixtures for surface layer dense surface, binder, base layers were investigated. Two different kinds used: a combination aramid polyolefins utilized preparing fiber reinforced porous mixtures, while polyacrylonitrile employed producing conventional layers. Refe...

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Rutting, thermal cracking, and stripping are among the most severe distress types in asphalt pavement. In this study, a specified type of styrene-butadiene-styrene (SBS) was used as modifier for low viscosity binder G80/100 (PG 58-22) to overcome issues distresses mixture. The mixing process had been evaluated by using fluorescent microscopy. control- SBS-modified binders were subjected all con...

The objective of this study is to compare the long-term aging performance dry-processed rubber-modified asphalt mixture with styrene–butadiene–styrene polymer-modified on heavy traffic volume roads in wet-freeze environment Michigan. rutting was evaluated using Hamburg wheel track device. disc-shaped compact tension test used assess fracture energy. dynamic modulus experiment estimate load and ...