提出了考虑不均匀界面时混凝土弹性模量预测的解析法.根据界面层上水泥颗粒的分布特性,给出了界面层上任一点处的局部水灰比和孔隙率.将不均匀界面层划分成一系列同心球壳单元,通过反演方法确定了每个球壳单元和水泥石基体的弹性模量.将三相混凝土分解成一系列两相复合子结构,应用两相复合球模型的正确解导出混凝土弹性模量.通过与文献中的两组实验结果比较验证了本文方法的有效性.数值结果表明,对于给定的骨料体积分数,混凝土弹性模量随着最大水泥颗粒直径和水灰比的增大而减小,但随着最大骨料直径的增大而增大,骨料级配对混凝土弹性模量也有一定的影响.
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