results showed that the flexual strength and the flexual toughness index of uhpc become more than 2 times and 10 times respectively of those of the matrix concrete by the reinforcement of fibers.
结果表明通过纤维的增强和增韧作用,超高性能混凝土的抗弯强度和弯曲韧性指数分别提高到2倍和10倍以上。
two important facts, crystal shape and magnetic inclusions, which affect toughness index were expounded. especially, magnetic inclusions affect thermal toughness index more than tough ness index.
阐述了影响金刚石沖击强度的两个重要因素:晶型与磁性包裹体,特别是磁性包裹体对热沖击强度的影响比对常温沖击强度的影响更甚。
in order to use the strength and toughness index for design and apply of sfrc unified theoretical calculation formula of reinforcing and toughening of sfrc is given.
初步给出建立钢纤维混凝土增强、增韧统一理论计算公式思想,为钢纤维混凝土强韧双重指标在设计、选用钢纤维混凝土中的应用打下基础;
beased on the cyclic envelope of load — displacement, the compressive toughness index of carbon fiber reinforced concrete was determined.
根据反复加载时荷载-变形曲线的外包线,测定了碳纤维混凝土的压缩韧度指数。
the toughness index of the weld is dependent on of the application status of the weld.
关于焊缝韧性指标,根据使用的情况不同也有所不同。