植物纤维增强型玻化微珠陶粒混凝土配合比设计

Mix Proportion Design of Glazed Hollow Bead Haydite Concrete with Plant Fiber

采用正交试验设计方法，考虑水泥掺量、玻化微珠掺量、植物纤维参量及砂掺量四个因素在三个水平下的影响，配置植物纤维增强型玻化微珠陶粒混凝土砌块，对材料抗压强度、拉压比和导热系数进行了极差分析、方差分析，采用功效系数分析法，确定满足一定考察指标的材料最优配合比。结果表明：水泥掺量是影响抗压强度的最主要因素，也是最显著因素；植物纤维能有效地提高材料的拉压比；玻化微珠能够较好地改善材料的热工性能，其掺量对于抗压强度及拉压比的影响较小。提出了抗压强度在5.0-7.5MPa范围内的最优配合比。

By using the method of orthogonal experimental design and considering the influence of cement content, glass beads content, plant fiber parameters and sand content under three levels, glazed hollow bead and haydite concrete block with plant fiber was prepared. Through range analysis, analysis of variance, and the efficiency coefficient analysis of compressive strength, tension-compression ratio and thermal conductivity of the block material, the optimum mix propor-tion which makes block to satisfy certain indicator is determined. The results show that cement content is not only the most important factor affecting the compressive strength of material, but also the most significant factor; adding plant fiber can effectively improve the tension and compression ratio of material; adding glass beads can improve the thermal performance of material, but its content was less affected for compressive strength and tension and compression ratio of material. The optimum mix proportion is put forward to get 5.0-7.5MPa of compressive strength.