基于均匀设计试验法石材废粉再利用研究

摘要/Abstract

摘要： 为解决石材废料污染问题,利用花岗岩废粉和大理石废粉,结合水泥、石英砂、粉煤灰和木浆纤维,制备了经济实用、性能优异的水泥纤维压力板。运用均匀设计试验法和回归分析法,揭示了花岗岩废粉和大理石废粉对水泥纤维压力板抗折强度、抗冲击强度及导热系数的影响,并通过对比试验,分析了掺入石材废粉对水泥纤维压力板物理性能、水化产物及微观结构的影响。结果显示,适量掺入花岗岩废粉和大理石废粉可有效提高水泥纤维压力板的力学性能,当花岗岩废粉、大理石废粉与水泥的质量比分别为0.625和0.417时,不会对水泥纤维压力板的水化产物和微观结构形貌产生显著影响,可制备出符合要求并且经济适用的水泥纤维压力板。

关键词: 水泥纤维压力板, 花岗岩废粉, 大理石废粉, 均匀设计, 回归分析, 水化产物, 微观结构

Abstract: In order to solve the problem of stone waste pollution, the preparation of economical, practical, and excellent performance fiber cement boards were studied. The raw materials of this board were granite waste powder and marble waste powder, combined with Portland cement, natural quartz sand, fly ash, and wood pulp fiber. The uniform design test method and regression analysis method were used to reveal the influences of granite waste powder and marble waste powder on the flexural strength, impact strength, and thermal conductivity of fiber cement boards. Through comparative experiments, the influences of granite waste powder and marble waste powder on the physical properties, hydration products, and microstructure of fiber cement boards were analyzed. The test results show that mixing granite waste powder and marble waste powder effectively improve the mechanical properties of fiber cement boards. When the mass ratio of granite waste powder, marble waste powder and cement is 0.625 and 0.417, it does not have a significant impact on the internal hydration products and internal microstructure morphology of the fiber cement boards. And the cement fiber boards can be prepared, which meet the requirements and are economical and applicable.

Key words: fiber cement board, granite waste powder, marble waste powder, uniform design, regression analysis, hydration product, microstructure

中图分类号:

TU525

田建冬, 陆隆源. 基于均匀设计试验法石材废粉再利用研究[J]. 硅酸盐通报, 2021, 40(5): 1536-1544.

TIAN Jiandong, LU Longyuan. Reuse of Stone Waste Powder Based on Uniform Design Test Method[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(5): 1536-1544.

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