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Outline
In order to give full play to the alkali-activated reactivity of industrial solid waste raw materials, determine the degree of reaction and the type of gel formed, and optimize the mechanical properties and durability of alkali-activated cementitious materials, the effects of Ca, Fe, S, Cl, Mg and other elements on the mechanical properties, corrosion resistance and microstructure of industrial solid waste-based alkali-activated cementitious materials were summarized. The results show that the synergistic effect of Ca and S in the AACMs system complicates the reaction process. Calcium-free and low-calcium AACMs have good acid resistance, while calcium-rich AACMs are prone to decalcification under acid attack, which weakens the structural strength. Compared with the materials rich in silicon, chloride and calcium, the higher iron content has an adverse effect on the compressive strength and corrosion resistance of AACMs. The resistance to chloride ion penetration of ACCMs is related to the chloride ion binding capacity of its skeleton, the presence or absence of chlorine in the system and the pore structure. At the same time, alkaline cations also have a significant effect on the chloride ion binding capacity and resistance to chloride ion penetration of ACCMs. Finally, the problems and future development directions of alkali-activated cementitious materials were discussed, which can provide reference for further research on industrial solid waste-based alkali-activated cementitious materials.
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| 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 |
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