LIU Weisen (1992-), male, Master candidate. E-mail: 2111816160@e.gzhu.edu.cn
Chopped carbon fiber (CF) was used as a conductive material to prepare alkali-activated slag/fly ash conductive mortar. The effects of carbon fiber content, stress loading amplitude and loading rate on the conductivity, mechanical properties and self-sensing properties of carbon fiber-alkali-activated conductive mortar were investigated. The results show that the alkali-activated conductive mortar reaches the percolation threshold and forms a conductive path when the volume fraction of carbon fiber is 0.2%. The mixture has a stable self-sensing performance with a high gauge factor at different loading rates and stress amplitudes. The self-sensing performance of alkali-activated slag/fly ash is the optimum with a gauge factor of 175, which is one order of magnitude greater than that of carbon fiber-cement mortar, when the stress amplitude is 12 MPa and the loading rate is 2.0 kN/s.
| 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 |