WANG Yuncheng (1995-), male, Master candidate. E-mail: wangyc950902@foxmail.com
The non-contact electrical resistivity measurement is a developed nondestructive method. The electrical resistivity of specimen can be in-situ and continuously measured by this method. In this review, the method application for the non-contact electrical resistivity in early hydration process was briefly summarized. The microstructure characterization and permeability of cementitious materials were reviewed. Three modified methods for non-contacting electrical resistivity measurement and the theoretical models for calculating microstructure parameters and diffusion coefficients based on the modified methods were introduced. The shortcomings of the existing studies were given, and some prospects of device improvement for non-contact electrical resistivity measurement, microstructure, permeability characterization and theoretical model were proposed.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |