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HARD IMPACT TESTING IN CHARACTERISING NEW MATERIALS

机译:表征新材料的硬性冲击测试

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Impact testing has emerged as an important aspect of developing a full understanding of the material properties of new concrete materials. Many of the accepted procedures for establishing the impact characteristics of energy-absorbing materials involve techniques which have evolved over the last twenty years, assisted by the late Prof Simon H. Perry of Trinity College Dublin, and his co-workers. Following a brief review of the early pioneering work on understanding the effect of high strain rates on plain concrete specimens and on fender protection using polystyrene aggregate concrete, the application of these techniques to a number of recent projects is described. These include the use of sleeved concrete for improving confinement and, hence, ductility, low-strength recycled paper waste concrete to enhance energy absorption and glass reinforced plastic bars in glass fibre planks for marine walkways to reduce the damage caused by accidental impact.
机译:冲击试验已成为全面了解新混凝土材料的材料性能的重要方面。建立能量吸收材料的冲击特性的许多公认程序都涉及过去二十年来发展起来的技术,这些技术在都柏林三一学院的已故教授Simon H. Perry及其同事的协助下进行。在简要回顾了有关了解高应变速率对普通混凝土试样的影响以及使用聚苯乙烯骨料混凝土的护舷保护方面的早期开创性工作后,对这些技术在许多近期项目中的应用进行了介绍。这些措施包括使用套筒混凝土来改善密闭度,从而提高延展性,使用低强度的废纸再生混凝土来增强能量吸收,并在船用人行道的玻璃纤维木板中使用玻璃纤维增​​强的塑料条,以减少意外撞击所造成的损害。

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