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采用石灰和矿渣作为改性材料制备石灰-矿渣/生土复合材料,利用响应面法研究石灰掺量、矿渣掺量和含水率对石灰-矿渣/生土复合材料热湿综合性能的影响,对石灰-矿渣/生土复合材料的制备工艺进行优化。结果表明,石灰掺量、矿渣掺量和含水率均对热湿综合性能产生影响;通过回归分析得到石灰-矿渣/生土复合材料的制备优化方案是石灰掺量(石灰与复合材料的质量比)为10.19%、矿渣掺量(矿渣与复合材料的质量比)为4.02%、含水率(水量与复合材料的质量比)为9.00%,且优化石灰-矿渣/生土复合材料平均平衡含湿量为12.725%,导热系数为0.798 W/(m·K),具有良好的热湿综合性能;通过结构分析可知,在碱性激发和微集料作用下,优化石灰-矿渣/生土复合材料内部呈现出完整、密实的结构体系特点,兼顾材料的力学、耐久性和热湿性能。
Lime and slag are used as modified materials to prepare lime-slag / raw earth composite materials. Response surface method is used to study the effects of lime content, slag content and water content on thermal-moisture comprehensive properties of lime-slag / Preparation of lime-slag / raw earth composite material is optimized. The results show that both the content of lime, the content of slag and the moisture content have an impact on the comprehensive performance of heat and moisture. The optimal preparation scheme of lime-slag / raw earth composite material is the content of lime (mass ratio of lime to composite ) Was 10.19%, slag content (mass ratio of slag to composite) was 4.02%, water content (mass ratio of water to composite) was 9.00%, and the average lime-slag / The thermal conductivity is 0.798 W / (m · K), and has good comprehensive properties of heat and moisture. Through structural analysis, it is found that under the condition of alkaline excitation and micro-aggregate, the lime-slag / raw earth composite Internal showed a complete, dense structural characteristics of the system, taking into account the material mechanics, durability and heat and moisture performance.