再生大骨料-自密实砂浆混凝土力学性能分析  

Analysis on Mechanical Properties of Recycled Large Aggregate-Self-compacting Mortar Concrete

作　　者：康晶 邹磊堂 王建超[3] KANG Jing;ZOU Leitang;WANG Jianchao

机构地区：[1]沈阳市市政工程设计研究院有限公司,辽宁沈阳110015 [2]中国建筑上海设计研究院有限公司辽宁分公司,辽宁沈阳110000 [3]沈阳建筑大学土木工程学院,辽宁沈阳110168

出　　处：《城市道桥与防洪》2024年第4期248-251,I0017,共5页Urban Roads Bridges & Flood Control

摘　　要：为了研究再生骨料粒径、再生骨料强度和自密实砂浆强度对其力学性能的影响,运用ABAQUS对再生大骨料-自密实砂浆堆石混凝土试件单轴抗压试验进行细观模拟,对比了试验值、模拟值,并对模型的合理性进行验证.结果表明:以再生骨料粒径、再生骨料配制强度以及自密实砂浆配制强度为变量,采用二维正五边形的随机骨料模型进行单轴受压分析,研究上述三个因素对再生大骨料-自密实砂浆混凝土轴心抗压强度的影响,模拟结果与实验结果吻合度较好,进一步验证了细观模型的合理性.In order to study the effects of recycled aggregate particle size,recycled aggregate strength and self-compacting mortar strength on its mechanical properties,ABAQUS is used to simulate the uniaxial compressive test of recycled large aggregate-self-compacting mortar rockfilled concrete specimens,compare the test values and simulation values,and verify the rationality of the model.The results show that the two-dimensional regular pentagonal random aggregate model is used for uniaxial compression analysis.The particle size of recycled aggregate,the strength of recycled aggregate preparation and the strength of self-compacting mortar preparation are used as variables to study the influence of the above three factors on the axial compressive strength of recycled large aggregate-self-compacting mortar concrete.The simulation results are in good agreement with the experimental results,which further verifies the rationality of the mesoscopic model.

关 键 词：再生大骨料 自密实砂浆 堆石混凝土 细观模拟 

分 类 号：TU528.37[建筑科学—建筑技术科学] U414.18[交通运输工程—道路与铁道工程]