国际会议作报告英语演讲PPT概要.ppt

Properties of rapid construction materials for soil pavement of field airfield Author: …… * Presentation ……………………University * Contents Background Working Conclusion Innovation Contents * Why Meaning Situation Airfield Railway Rescue Network Background * Meaning Situation Fast Validity Convenient Why Aim Background * U.S Army: Reaching to anywhere in 96 hours They can support C-17 in 16 days…… Background Meaning Why Situation * Main Work Materials Scheme Mechanical Water-stable Working * Materials Scheme Mechanical Water-stable 2 soils 1 sand 3 powders 4 fibers Working Different kind, different amount, with and without sand * Scheme Mechanical Water-stable Materials Powder control Fiber control Other factors Specific scheme Other factors Fiber control Specific scheme 6% 8% 10% 8% 10% 22% 6% 3% 5% 7% 3% 3% 3% 2% 4% 6% 8% 10% Working * Compaction test Compression strength Materials Scheme Mechanical Water-stable Working * Splitting tension strength direct shear test Materials Scheme Mechanical Water-stable Working * CBR rebound modulus Materials Scheme Mechanical Water-stable Working * Scheme Mechanical Scouring test penetrant test Water-stable Working Materials * Cantabria test Other tests Working Scheme Mechanical Water-stable Materials Comprehensive experiments, test methods, test instrument Several kinds of fibers, different length, admixture Selecting two kinds of soils, three kinds of powders, several combination * Innovation Innovation sand experiments test instrument combination fibers test methods powders soil choosing Innovation * THANK YOU All questions are welcome This is deed by …….. Including ……, ………, ……., …….., ….. and ……. 1.选题相关包括选题的背景、目的、意义及研究现状； * 1.永备机场数量少，易被攻击，抢修不易； 2.公路飞机跑道缺点：导航设备不足、周围环境复杂、物资保障不充分、空间狭小； 3.考虑到走出去及抢险救灾需求； 4.简易机场修建速度快、投资小，机动灵活，平时可只做规划，紧急情况下根据战争形势的发展、作战部门的意图及抢险救灾需求而抢建，与永备机场相互配合形成完备的机场网络。 * 1.在较短的时间内修筑完成； 2.由于时限、场地、机场性质等要求，达到施工简单，维护简单； 3.保证一定机型一定时间内一定次数的起降； *