摘要
针对混凝土搅拌过程中混凝土的均匀性难以准确监测的问题,通过使用离散元分析软件,分析从0~100 Hz激振频率下,搅拌过程中及搅拌完成后宏观颗粒分布状态和微观颗粒的均匀性情况。结果表明,高频振动作用对搅拌过程的强化效果较强制搅拌和中低频振动搅拌较好,高频振动搅拌下的混合离散度较小。然而,振动频率过高则会降低颗粒的均匀性,影响搅拌质量。
To address the issue of difficulty in accurately monitoring the uniformity of concrete during the mixing process, discrete element analysis software was used to analyze the macroscopic particle distribution and microscopic particle uniformity during and after the mixing process at a frequency of 0~100 Hz excitation. The results indicate that the strengthening effect of high-frequency vibra-tion on the mixing process is better than that of forced stirring and medium to low-frequency vibra-tion stirring, and the mixing dispersion under high-frequency vibration stirring is smaller. However, if the vibration frequency is too high, it will reduce the uniformity of particles and affect the mixing quality.
出处
《机械工程与技术》
2023年第3期301-309,共9页
Mechanical Engineering and Technology
