不同骨料形状的超临界碳化模型对比分析

A two-dimensional random aggregate model was established by using the cumulative distribution function. The circular and elliptical random aggregate models were introduced into the theoretical model of supercritical carbonation. The uniform supercritical carbonation model and the supercritical carbonation model of random aggregates were established by multiphysics simulation software. The effectiveness of the supercritical carbonation model after the introduction of aggregates was analyzed, and the influence of aggregate shape on the supercritical carbonation process was also studied. The experimental results shows that the supercritical carbonation model with random aggregates produces irregular carbonation boundaries due to the presence of aggregates. When describing the carbonation process with the maximum carbonation depth, the maximum carbonation depth obtained by the circular random aggregate model is 16.1 mm, and the maximum carbonation depth obtained by the elliptical random aggregate model is 17.1 mm. The elliptical random aggregate is more suitable than the circular random aggregate.