Cement is a source of anthropogenic emissions ensuing environmental concerns and susceptible to crack under stresses. For mitigating the durability concerns, a bio-influenced effective microorganisms technology (EMs) has been employed in the cementitious composites. In the present research, the effect of EMs on the properties of self-compacting and conventional cementitious composites was explored using three types of EMs (EM1®, EMC® and EMX-Ceramics®) with three different of cements (CEMI, CEMIII and Calcium Aluminate cement). Taguchi approach of experimental design was implemented for optimization of formulations. L18 (2¹ × 3⁷) orthogonal array was selected based on influencing factors namely w/c ratio, cement type, EMs type and EMs percentage replacement. Specimens were casted and cured in air, moisture and desiccator. Forensic inspections were performed to monitor the growth of hydration products and precipitation of bio-calcite precipitate. Energy performance of EMs modified composites was also analyzed using ECOTECT. Experimental results were analyzed statistically using analysis of variance (ANOVA). The analysis revealed that w/c and EM % replacements as the most governing parameters in response modification of cement composites. The 4% EM replacement was determined to be the optimal percentage in refining the fresh and hardened state response of cementitious systems. Forensics endorsed the microstructural refinements as a result of bio-precipitate, contributing in the increase of mechanical properties and reduction in 27% cooling loads. Moreover, theoretical equations were proposed for prediction and optimization of mix design based on Taguchi approach using extensive regressions.

水泥是人为排放的源头，随之而来的是环境问题，并且容易在压力下破裂。为了减轻耐久性问题，在水泥基复合材料中采用了受生物影响的有效微生物技术（EMs）。在本研究中，使用三种类型的EMs（EM1，®EMC®和EMX-Ceramics®）以及三种不同的水泥（CEMI，CEMIII和钙）探索了EMs对自密实和常规水泥基复合材料性能的影响。铝酸盐水泥）。Taguchi实验设计方法用于优化配方。L18（2 ¹  ×3 ⁷）基于w / c比，水泥类型，EMs类型和EMs百分比替换的影响因素选择正交阵列。样品在空气，湿气和干燥器中浇铸和固化。进行法医检查以监测水合产物的生长和生物方解石沉淀物的沉淀。还使用ECOTECT分析了EMs改性复合材料的能量性能。使用方差分析（ANOVA）对实验结果进行统计分析。分析显示，w / c和EM％替代是水泥复合材料响应改性中最主要的控制参数。确定4％的EM替代物是改善水泥系统的新鲜状态和硬化状态响应的最佳百分比。法医鉴定出由于生物沉淀产生的微观结构的细化，有助于提高机械性能并减少27％的冷却负荷。此外，基于Taguchi方法，使用广泛的回归方法，提出了用于预测和优化混合设计的理论方程。