常规建筑材料演变研究
澳洲代写Assignment范文:“常规建筑材料演变研究”，这篇论文主要描述的是钢作为建筑工程中常规的增强材料，被人们所广泛使用着，但是随着钢使用的广泛，钢筋存在着易腐蚀的缺点，在严寒、盐路的环境下表现的更为突出，容易出现混凝土断裂的问题，于是玻璃钢便进入了人们的视野当中，以其独特的耐腐蚀性、耐环境性的特性解决了这个困扰着工程师们的难题。
Introduction介绍
Steel, as the conventional reinforcement material, has been widely used in the world. Until the 1960s, disadvantages of steel reinforcement showed up. Steel, as a metal material, can be easily corroded. Structures in coastal areas and colder climates can be more easily corroded because of road salts and marine salts. Once steel bars being corroded, the concrete would not provide enough strength as before. Cracks would happen and cause the concrete to fracture. Engineers came up with many solutions until the Marshall-Vega Corporation developed a FRP reinforcing bar that didn’t ordinarily cause corrosion problems and worked well. FRP came into people’s view after that, lots of studies about FRP properties and applications have been done.
FRP is short for Fiber reinforced polymer, which also called fiber reinforced plastic. It has continuous fibers embedded in a resin matrix. Besides corrosion resistance, FRP also has high specific strength and modulus, durability, chemical and environmental resistance and electromagnetic permeability, etc. These desirable properties make FRP have a wide application. Engineers can use them to effectively repair old constructions and build long durable constructions to save maintenance cost in civil engineering area.
Glass, carbon, and aramid fibers are the most commonly used fibers in FRP reinforcement. Thermosetting and thermoplastic are two types of resins, which classified by their properties. FRP can be used as external and internal reinforcement. The most popular forms of FRP external reinforcement are laminates and near surface mounted (NSM) rods, which can be used to strengthen the existing deteriorated structures. The FRP internal reinforcement is embedding FRP bars in concrete for new structures. In this article, the components, prosperities, and applications of FRP will be introduced.
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