摘要 一般混凝土材料的强度低、耐久性差、施工性能差。超高强水泥基复合材料通过改善施工工艺，采用较佳的配合比，通过掺入各种纤维与高强骨料，在提高强度的同时，进一步改善其耐久性等性能。本文利用两种不同粒径的陶瓷球、重晶石、铁矿石三种骨料，分别制备了利用砂浆灌注粗骨料的超高性能水泥基复合材料，又制备了利用钢纤维增强超高性能水泥基复合材料的试样，分别研究了不同骨料、不同纤维掺量对其力学性能的影响，并分析了其微观机理。通过发挥不同种类骨料的增强作用，以及钢纤维的阻裂增韧作用，提高水泥基复合材料的力学性能和微观密实性，提出一种利用高强骨料和钢纤维配合制备超高性能水泥基复合材料的设计和制备方法。87781
毕业论文关键词 粗骨料 钢纤维 灌注 强度
毕业设计说明书外文摘要
Title Preparation and performance research of particle reinforced cement-based composite materials
Abstract General strength and durability of the concrete material is poor, poor construction performance。Ultra high strength cement matrix composites by improving the construction technology, adopt better mixing ratio, through adding various kinds of fiber and high-strength aggregate, at the same time of improving strength, further improve the durability performance。This paper, by using two different particle size of ceramic ball, barite, three kinds of iron ore aggregate, respectively were prepared using slurry filling aggregate of ultra-high performance cement-based composite materials, and the preparation of the use of steel fiber reinforced high performance cement base composite sample, respectively to study the different aggregates, the influence of different fiber content on the mechanical properties, and analyses the microscopic mechanism。Through play a role of different kinds of aggregate enhancement, and the crack resistance of steel fiber toughening effect, improve the mechanical performance of cement-based composite materials and micro compactness, put forward a way to use high strength aggregate and steel fiber with the preparation of high performance cement base composite material design and preparation methods。
Keywords coarse aggregate steel fibre perfusion strength
目 次
1 绪论 1源-于,优Y尔E论W文.网wwW.yOueRw.com 原文+QQ752018`766
1。1 引言 1
1。2 颗粒增强水泥基材料性能特点与现状 1
2 实验准备 3
2。1 实验原料的成分与性能 3
2。2 实验器材 5
2。3 实验配比 7
3 实验过程 9
3。1 制作过程 9
3。2 测试过程 9
4 实验结果与分析 12
4。1 抗压强度测试结果 12
4。2 抗弯强度测试结果 15
结 论 19
致 谢 20
参考文献 21
1 绪论
1。1 引言
水泥由于具有各种由于的性能在生活中应用较普遍[1-4]。水泥与其他胶凝材料并配以水和减水剂，可以凝结硬化为我们较长应用的混凝土。以前的由石灰与火山灰制成的混合物作为胶凝凝材料混合集料和水制成的混凝土，硬化后拥有良好的强度，而且还具有抵抗淡水或含盐水的侵蚀的抗化学腐蚀性能。长期以来，由于水泥的优异性能，它广泛应用在在土木建筑[5-7]、水利、国防等重要工程中。From+优`尔^文W网wWw.YouErw.com 加QQ75201^8766 颗粒增强水泥基复合材料的制备及性能研究:http://www.youerw.com/cailiao/lunwen_146228.html