Recycled concrete mesoscopic model construction method based on random polygon aggregate

The invention provides a recycled concrete mesoscopic model construction method based on random polygon aggregate. The recycled concrete is refined into a complex homogeneous material consisting of six-phase materials. Six-phase materials comprise aggregate, old mortar, new mortar, a first old interface transition area between the aggregate and the old mortar, a second old interface transition area between the old mortar and the new mortar and a new interface transition area between the aggregate and the new mortar, and different interface transition areas are constructed through a surface translation method. The obtained model is closer to an actual recycled concrete test block, and the damage process of the recycled concrete can be further studied from a mesoscopic level by adopting the model provided by the invention. 本发明提供一种基于随机多边形骨料的再生混凝土细观模型构建方法，将再生混凝土细化为由六相材料组成的复杂均质性材料，六相材料分别为：骨料、老砂浆、新砂浆、骨料和老砂浆之间的第一老界面过渡区、老砂浆与新砂浆之间的第二老界面过渡区、骨料与新砂浆之间的新界面过渡区，并且通过面平移的方法构建了不同的界面过渡区，所得模型更接近实际的再生混凝土试块，采用本发明的模型能更进一步的从细观层次上对再生