ZHU Zheyu (1991-), male, Doctor candidate. E-mail: bokzhu@163.com
BSE-Raman was used to investigate in-situ Raman spectra of hydration products and their spatial distribution profiles. It was found that the in-situ structural information of the silicon-oxygen tetrahedral Q1, Q2 and Q3 chains of C-S-H could be readily obtained, while the hydration products could be accurately identified. All the hydration products with different morphologies exhibited multiple characteristic peaks of chemical bonds of the hydration products. Therefore, it was concluded that the cement hydration products were mixed at nanometer scale. The pom-shaped hydration product had a skeleton consisting of C-S-H and ettringite. Due to its ability of quick and accurate in-situ identification of different phases, BSE-Raman has broad prospects in the microstructural characterization of cement-based materials.
| 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 |