铁道标准设计2017，Vol.61Issue(1)：26-29,30,5.DOI:10.13238/j.issn.1004-2954.2017.01.006
粉煤灰和硅灰对高强度纤维水泥基材料力学性能影响研究
Effect of Fly Ash and Silica Fume on Mechanical Properties of High-performance FRCC
摘要
Abstract
Based on the development and application of high-performance FRCC ( Fiber Reinforced Cementitious Composite) , the effect of different content of fly ash and silica fume on the compressive strength, flexural strength and toughness of high-performance FRCC is studied. The results show that the addition of fly ash and silica fume significantly affects the mechanical properties of high-performance FRCC. The specific optimization content with 50% ash and 15% silica fume can make the flexural strength of high-performance FRCC up to 19. 5 MPa, the compressive strength to 75. 2 MPa, and the ratio of bending strength to compressive strength to about 0. 26 . Compared with ordinary fiber reinforced cementitious composite, its flexural strength and compressive strength are increased by 35% and 40%respectively and the ratio of bending strength to compressive strength is increased by about 6%. It can be seen that the optimization mixture can significantly enhance the compressive strength, flexural strength and toughness of high-performance FRCC and may provide reference for practical use.关键词
高强度纤维水泥基材料/粉煤灰/硅灰/抗压强度/抗折强度/韧性Key words
High-performance FRCC/Fly ash/Silica fume/Compressive strength/Flexural strength/Toughness分类
交通工程引用本文复制引用
陈鲤波,曾晓辉,瞿福林,王平,李茂红,李悦..粉煤灰和硅灰对高强度纤维水泥基材料力学性能影响研究[J].铁道标准设计,2017,61(1):26-29,30,5.基金项目
国家杰出青年科学基金(51425804) （51425804）
