In this paper, the influence of water glass types, the modulus of water glass, the alkali content, the water consumption, and plant fibers on the mechanical strengths of alkali-activated blast furnace slag powder (BFS) is investigated. Moreover, the fiber types and pretreatment on the plant fibers and the measuring temperature on the performance of alkali-activated BFS are further considered. Results indicate that BFS activated by potassium silicate shows higher mechanical strengths than that activated by sodium silicate. The alkali-activated BFS with alkali treatment on fibers is the most advantageous. The modulus of alkali leads to decreasing the compressive strength. A total of 35% water consumption is the most beneficial to the specimens’ flexural and compressive strengths. Samples with 14% potassium silicate show the maximum mechanical strength. Alkali-activated BFS with 1% wheat straw fibers in addition by total volume represents the maximum mechanical strength. The alkali-activated BFS with alkali treatment on fibers is the most advantageous. The addition of potassium silicate can improve the flexural and compressive strengths by the maximum values of 30.4% and 16.8% compared to specimens with sodium silicate. A total of 35% water consumption can increase the flexural and compressive strengths by 33.8% and 32.7%.

中文翻译：

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不同碱活化剂和植物纤维碱活化高炉矿渣粉的机械强度

本文研究了水玻璃类型、水玻璃模量、碱含量、用水量和植物纤维对碱活化高炉矿渣粉(BFS)机械强度的影响。此外，进一步考虑了纤维类型和植物纤维的预处理以及测量温度对碱激活BFS性能的影响。结果表明，由硅酸钾活化的 BFS 显示出比由硅酸钠活化的更高的机械强度。对纤维进行碱处理的碱活化BFS是最有利的。碱的模量导致抗压强度降低。总耗水量为 35% 对试样的抗弯强度和抗压强度最有利。含有 14% 硅酸钾的样品显示出最大的机械强度。碱激活的 BFS 加上总体积的 1% 小麦秸秆纤维代表了最大的机械强度。对纤维进行碱处理的碱活化BFS是最有利的。与添加硅酸钠的试样相比，添加硅酸钾可将抗弯强度和抗压强度提高最大值 30.4% 和 16.8%。共计35%的用水量可使抗弯强度和抗压强度分别提高33.8%和32.7%。与添加硅酸钠的试样相比，添加硅酸钾可将抗弯强度和抗压强度提高最大值 30.4% 和 16.8%。共计35%的用水量可使抗弯强度和抗压强度分别提高33.8%和32.7%。与添加硅酸钠的试样相比，添加硅酸钾可将抗弯强度和抗压强度提高最大值 30.4% 和 16.8%。共计35%的用水量可使抗弯强度和抗压强度分别提高33.8%和32.7%。