摘要：常规水泥基复合材料的脆性较高，并且有较高的断裂倾向,为了优化这些缺陷，我们常常使用钢纤文来增加纤文与基体间的界面结合作用,以期增强水泥材料的各项性能,特别是韧性的增强。由于水泥材料的多元化特性,如果我们仅仅加入钢纤文的话,就不能够全面提高水泥材料的性能，为了保证各方面性能的提高,有人提出利用有机与无机纤文的混杂效应来提高材料的拉伸强度和阻裂能力，因此，下面选取钢纤文与玄武岩纤文的混杂材料来实验[1]。
利用纤文的混杂来增强水泥基复合材料的性能，是通过把不同性质与不同尺度和优点的纤文混杂,在搅拌及成型过程中,可以截取它们的优点并加以结合。在力学性能和耐久性能的比较上，混杂纤文明显占优.本文根据UHPCC的自身特点,并在混杂纤文增强的基础上通过骨料的不同比例的取代，来进行UHPCC材料的增强。19249
关键字：UHPCC  骨料  取代
毕业论文设计说明书（论文）外文摘要
Title High-speed impact of optimal design UHPCC Simulation and finite element
Abstract
Conventional high brittle cement-based composite materials, and have a higher tendency to break, in order to optimize these defects, we often use the steel fibers to increase the interface between the fiber and matrix binding in order to enhance the performance of cement materials, especially enhanced toughness. Due to the persity characteristics of cementitious materials, if we just added steel fibers, it is not possible to comprehensively improve the performance of cementitious materials, in order to ensure that all aspects of improving the performance, it was suggested that the use of organic and inorganic fiber hybrid effect to improve the tensile materials strength and crack resistance capacity, therefore, the following select steel fiber and basalt fiber hybrid materials to experiment.
Use to enhance the performance of hybrid fiber cement-based composites by the different nature and different scales and benefits of fiber mixed in the mixing and molding process can intercept and to combine their advantages. In the mechanical properties and durability of the more able, hybrid fiber was dominant. According UHPCC's own characteristics, and replace aggregates in different proportions on the basis of hybrid fiber reinforced through, to enhance UHPCC materials
Key words:UHPCC  Aggregate  Replace
目录
1．1  引言    5
1.2  UHPCC的性能特点以及研究现状    5
1.3  本文的研究内容    6
2  UHPCC的制备以及力学性能测试方法    7
2.1  原材料及其原料参数    7
2.1.1  水泥    7
2.1.2  粗骨料    7
2.1.3  黄砂    7
2.1.4  硅灰    7
2.1.5  矿渣：    8
2.1.6  化学外加剂：    8
2.1.7  纤文类型及其参数：    8
2.2  UHPCC的养护机制及制备手段    9
2.2.1  实验设备    9
2.2.2  UHPCC的制备方法    11
2.3  力学性能测试    11
2.3.1  抗弯性能测试    11
2.3.2  抗压强度测试    12
2.4  配合比    14
2.5  本章小结    14
3  力学性能测试结果及微观形貌分析    15
3.1  实验所得水泥基材料的抗压强度及抗弯强度    15
3.1.1  水胶比对静态力学性能的影响    15
3.1.2  骨料对静态力学性能的影响    15
3.2  扫描电镜结果及分析    16 高速冲击下UHPCC的优化设计与有限元模拟:http://www.751com.cn/cailiao/lunwen_10544.html