This paper presents the results of a study conducted to synthesize alkali-activated mortars (AAMs) at room temperature. The AAMs were prepared using silicomanganese fume (SiMnF) and ground granulated blast furnace slag (GGBFS) as precursor materials (PMs) and sodium hydroxide (NaOH) and sodium silicate (Na₂SiO₃) as alkaline activators (AAs). The composition of the AAMs was designed and optimized using the Taguchi method. Five factors with four levels each were investigated in this study, including the ratio of GGBFS to PMs (0–4.5), sand to PMs ratio (1.5–2.4), molarity of NaOH (4–10 M), Na₂SiO₃/NaOH ratio (2–3.5) and AAs to PMs ratio (1.5–2.4). Based on the orthogonal array proposed by the Taguchi method, 16 AAMs were cast with varying flow and unit weight to evaluate the compressive strength at 3, 7 and 28 days. The strength data was statistically analysed by employing ANOVA and response surface methods to investigate the effect of experimental variables. AAM with 30:70 proportion of GGBFS and SiMnF, Na₂SiO₃/10 MNaOH of 2.5, AAs/PMs ratio of 0.5 and sand to PMs ratio of 1.5 attained optimum strength. Based on the SEM and EDS analysis, the molar ratios among the major constituent elements intertwined in the cemented matrix were established which contributed to the formation of alkaline products and microstructural densification of the optimum mixture.

本文介绍了在室温下合成碱活化砂浆 (AAM) 的研究结果。使用硅锰烟 (SiMnF) 和磨碎的高炉矿渣 (GGBFS) 作为前体材料 (PMs) 和氢氧化钠 (NaOH) 和硅酸钠 (Na ₂ SiO ₃ ) 作为碱性活化剂 (AAs)制备 AAM 。使用田口方法设计和优化 AAM 的组成。本研究调查了五个因素，每个因素有四个水平，包括 GGBFS 与 PMs 的比率（0–4.5）、沙子与 PMs 的比率（1.5–2.4）、NaOH 的摩尔浓度（4–10 M）、Na ₂ SiO ₃/NaOH 比率 (2–3.5) 和 AA 与 PM 的比率 (1.5–2.4)。基于田口方法提出的正交阵列，以不同的流量和单位重量浇铸 16 个 AAM，以评估 3、7 和 28 天的抗压强度。通过采用方差分析和响应面方法对强度数据进行统计分析，以研究实验变量的影响。GGBFS 和 SiMnF 的比例为 30:70、Na ₂ SiO ₃ /10 MNaOH 为 2.5、AA/PMs 比为 0.5 和砂与 PMs 比为 1.5 的AAM获得了最佳强度。基于 SEM 和 EDS 分析，确定了胶结基体中交织的主要组成元素之间的摩尔比，这有助于形成碱性产物和最佳混合物的微观结构致密化。