Binder-scale creep behavior of metakaolin-based geopolymer
Binder-scale creep behavior of metakaolin-based geopolymer
复制标题
偏高岭土基地质聚合物的粘结剂尺度蠕变行为
DOI：
10.1016/j.cemconres.2019.105810
复制
发表时间：
2019-10-01
影响因子：
11.4
通讯作者：
Yan, Dongming
中科院分区：
文献类型：
--
作者：
Chen, Shikun;Wu, Chenglin;Yan, Dongming
在这项研究中，粘结剂相的偏高岭土基地质聚合物（MKG）的蠕变行为进行了研究，使用纳米压痕。从详细的微观结构表征和微观力学分析确定了Si/Al比对蠕变行为的潜在影响。结果表明，在MKG的粘结剂规模的蠕变行为和它的微观结构，特别是特征孔径，这是进一步相关的粘结剂的Si/Al比之间的强相关性。结合细观力学分析，进一步解释了成分和结构对MKG蠕变行为的影响。
In this study, the creep behavior of binder phase in metakaolin-based geopolymers (MKGs) was investigated using nanoindentation. The underlying influence of the Si/Al ratio on the creep behavior was determined from detailed microstructure characterization and micromechanical analysis. The results indicated a strong correlation between the binder-scale creep behavior in MKG and its microstructure, particularly the characteristic pore size, which was further related to the Si/Al ratios of the binder. Combined with micromechanical analysis, the underlying influence of the composition and structure on the creep behavior in MKG was further explained.