基于正交实验的相似材料配比实验研究

Research on Similar Material Proportioning Test Based on Orthogonal Design

应用正交设计方法,以骨料/石英砂、胶凝材料/石膏与大白粉以及水量为3个因素,每个因素设置5个水平。设计了15组材料配比方案,进行了称重、单轴压缩、劈裂实验,获得了不同配比相似材料的密度、抗压强度、抗拉强度等物理力学性质指标。

On the basis of orthogonal design method,the weight of aggregate/quartz sand, the weight of binding material/gypsum and lime, and the weight of water were selected as three factors, and every factor had five variable levels.According to fifty schemes of material mixture ratio designed by orthogonal design method,laboratory uniaxial compression test, split test were conducted.Physical and mechanical indexes of similar material such as unit weight, compressive strength and tensile strength were obtained under different material mixture ratios.