The first major success of polymer nanocomposites, where the filler has at least one dimension in the nanoscale, was reported by Kojima, Usuki et al. [1] from the Toyota Central R&D group. They demonstrated that nylon6/clay nanocomposites showed significant improvement in the mechanical and the thermal properties. Since then, works on the polymer nanocomposites have been conducted on a wide var...

Strengthening of existing circular reinforced concrete columns by CFRP confinement

In tribological applications, because of the corrosive problems of the metals in water applications, poly-ether-ether-ketone (PEEK) and its composites are preferred for rubbing materials. As it is known PEEK is a high performance semi-crystalline thermoplastic polymer and has received significant attention in recent years. This is due to its high mechanical strength and elastic modulus, high to...

Building energy models usually employ a constant, room-temperature-measured value for the thermal resistance of fiberglass roof insulation. In summer, however, the mean temperature of roof insulation can rise significantly above room temperature, lowering the insulation’s thermal resistance by 10% to 20%. Though the temperature dependence of the thermal resistance of porous materials like fiber...

The design features and scientific equipment are considered for modern foreign small-sized catamaran vessels, which were put into operation in 2015-2023. Two groups of catamarans distinguished – those made reinforced fiberglass (also referred to as composite) built with aluminum alloys resistant the effects marine environment. Information is analyzed on 15 vessels a maximum length from 12 20 m,...

A fabric, tapes, that are glued to the outer tensile surface, which considered as external composite reinforcement with steel reinforcement, currently used strengthen reinforced concrete beams. The results of experimental studies presented in this article have shown possibilities effective application technical polyamide (nylon) fabric produced by «Khimvolokno Plant» JSC «Grodno Azot», and glas...

This study performed an experimental investigation of asphalt concrete with and without fiberglass geogrid reinforcement, using specimens in the laboratory situ. A 100kN/m was used. The results showed that flexural strength increased by 24.82%, deformation significantly reduced, elastic modulus did not improve significantly. In addition, Hamburg Wheel Tracker test, reinforced samples had a 7.41...

The purpose of this study was to compare the structural properties of a new vs. established design of composite replicate femurs and tibias. The new design has a cortical bone analog consisting of short-glass-fiber-reinforced (SGFR) epoxy, rather than the fiberglass-fabric-reinforced (FFR) epoxy in the currently available design. The hypothesis was that this new cortical bone analog would impro...