background: motorcycle accidents and sport accidents lead yearly to many head injuries like head fractures and concussion. so finding the most proper helmet for reducing the injuries to head can be very helpful for head protection in such cases. methods: after 3d modeling of the helmet and head and meshing the model, a compressive impacting load of 1.31mpa was exerted on head and the model was ...

Abstract—In this study, the feasibility of incorporating ceramic waste from bricks (perforated brick and double hollow brick) and extruded polystyrene (XPS) waste, is analysed. Results show that it is possible to incorporate up to 25% of ceramic waste and 4% of XPS waste over the weight of gypsum in a gypsum matrix. Furthermore, with the addition of ceramic waste an 8% of surface hardness incre...

A full-scale experimental program was used in this study to investigate the structural behavior of novel insulated concrete sandwich wall panels (SWPs) reinforced with grid-type glass-fiber-reinforced polymer (GFRP) shear connectors. Two kinds of insulation-expanded polystyrene (EPS) and extruded polystyrene (XPS) with 100 mm thickness were incased between the two concrete wythes to meet the in...

Extruded polystyrene (XPS) is often treated with hexabromocyclododecane (HBCD) as fire retardant (FR). Because of its aliphatic structure, HBCD is not suspected to cause formation of polybrominated dioxins upon combustion. Precursors of polybrominated dioxins, namely bromophenols, were detected during tubular furnace combustion experiments of FR-XPS in combination with sorptive enrichment on po...

Polystyrene foam (expanded and extruded polystyrene: EPS XPS, respectively) is a ubiquitous pervasive type of marine plastic whose physical properties, transport fate are distinctly different to those other common (unfoamed) types thermoplastic litter. In this study, range fragments XPS retrieved from three beaches in southwest England have been characterised by energy-dispersive X-ray fluoresc...

Seaport buildings have been affected by marine moisture for a long time, but most of the wall thermal insulation studies not considered transfer effect structure. Therefore, considering function structure and energy consumption solar radiation, based on cost analysis, paper puts forward research energy-saving technology harbor building analysis. Grey clustering is used to analyze project enviro...

Abstract Based on carbon fiber, extruded polystyrene foam (XPS), ethylene vinyl acetate plastic (EVA), and other materials, a lightweight fitting device is designed. Its mechanical properties are tested simulated. The experimental results simulation consistent. adaptive adopts design, the single piece weight less than 30 kg. final height of can be changed through manual stacking combination to ...

This study is devoted to the possibility of using advanced insulation materials, such as Vacuum Insulation Panels (VIP), in and reconstruction buildings, connection with green elements that are installed on facade case use external thermal composite systems (ETICS). The VIP part system will result a significant reduction required thickness layer. In turn, reduced overall allow for easier direct...

This paper aims at assessing the embodied energy and greenhouse gas emissions (GHGs) of two building envelopes, designed for a floors semi-detached house located in Central Italy. The analysis is performed by applying Life Cycle Assessment methodology, following from cradle-to-gate approach. Fixtures (windows doors), external internal opaque walls, roof (including interstorey floors) make envel...

Among the aspects with major impacts on energy and environmental performance of a building, thermal insulation opaque elements its envelope stands out. This work assesses influence application to building’s comfort conditions indoors; moreover, energy, environmental, economic costs over complete life cycle is evaluated. For this purpose, three most commonly used insulating materials (expanded p...