Enhancement the Strength of Conventional Concrete by using Nylon Fibre

Fibre can be defined as a small piece of reinforcing material possessing certain dimensional characteristics. The most important parameter describing a fibre is its Aspect ratio. "Aspect Ratio" is the length of fibre divided by an equivalent diameter of the fibre. The properties of fibre reinforced concrete are very much affected by the type of fibre. The properties of fibre reinforced concrete are very much affected by the type of fibre. Fibres are secondary reinforced material and acts as crack arrester. Prevention of propagation of cracks originating from internal flaws can result in improvements in static and dynamic properties of matrix. Fibre reinforced cement and concrete materials (FRC) have been developed progressively since the early work by Romualdi and Batson in the 1960s. By the 1990s, a wide range of fibre composites and FRC products were commercially available and novel manufacturing techniques were developed for use with high fibre content. In parallel with the commercial development of FRC materials and products, an extensive research programme was undertaken to quantify the enhanced properties of FRC materials and more specifically to allow comparisons to be made between various types of fibres.

纤维可被定义为一类具备特定尺寸特性的小型增强材料。描述纤维最重要的参数为长径比（Aspect Ratio），其定义为纤维长度与纤维等效直径的比值。纤维增强混凝土的性能极大程度上受纤维类型的影响。纤维增强混凝土的性能极大程度上受纤维类型的影响。纤维属于次要增强材料，可起到阻裂作用。抑制由内部缺陷引发的裂纹扩展，可改善基体的静态与动态力学性能。自20世纪60年代Romualdi与Batson开展开创性研究以来，纤维增强水泥基复合材料（FRC）便逐步得到发展。至20世纪90年代，各类纤维复合材料与纤维增强水泥基复合材料产品已实现商业化应用，同时针对高纤维掺量的新型制备工艺也相继问世。在纤维增强水泥基复合材料与产品商业化发展的同时，学界也开展了大量研究工作，以量化该类材料的性能提升效果，更具体而言，旨在实现不同类型纤维之间的性能对比。