论文部分内容阅读
基于聚合物骨架空隙混凝土的力学性能在很大程度上依赖于结合材料的力学性能,运用有限元计算方法研究结合料的性能和其厚度对聚合物骨架空隙混凝土的影响,可以减少试验工作量、优化聚合物骨架空隙混凝土材料的配比设计。有限元计算时,针对聚合物骨架空隙混凝土“弹性结合料+骨料+空隙”的构造特点,细观计算模型中考虑了混凝土内部的构造空隙;针对结合料厚度较小的特点,采用了细观单元建模,材料参数取值采用了试验结果的代表值。结果表明,计算值和试验值吻合较好,说明细观模型能够较好模拟弹性聚合物骨架空隙混凝土的力学特性;聚合物骨架空隙混凝土采用较厚的聚合物水泥结合料对聚合物骨架空隙混凝土材料的整体受力有利。
The mechanical properties of the polymer-based void concrete depend greatly on the mechanical properties of the composite. The finite element method is used to study the influence of the properties of the binder and the thickness of the polymer on the polymer matrix void concrete. The experimental work, Optimization Design of Polymer Skeleton Void Concrete. In the finite element calculation, considering the structural characteristics of the polymer skeleton void concrete “elastic binder + aggregate + void ”, the microscopic calculation model takes into account the structural voids inside the concrete. In view of the smaller thickness of the binder, The mesoscopic unit modeling, material parameters used in the value of the representative test results. The results show that the calculated values are in good agreement with the experimental values, which shows that the meso-scale model can simulate the mechanical properties of the elastic polymer skeleton void concrete well. The polymer skeleton void concrete uses the thicker polymer cement binder to reinforce the polymer skeleton void concrete The overall force of the material is good.