The effect of bacterial and fiber combination to enhance the properties of GGBS based geopolymer concrete to be used as paver block is investigated in this study. In this study, Bacterial combinations such as Bacillus Subtillis and Bacillus Sphaericus and high modulus glass fibers and low modulus polypropylene fibers were incorporated to produce hybrid fiber reinforced bacterial geopolymer concrete with increased energy absorption characteristics and better post cracking behavior under heavy loads. Combined and the discrete performance of bacteria and fiber over the mechanical properties of the geopolymer concrete were investigated. The influence of bacterial strain combination over self-healing of concrete is also studied by inducing artificial cracks of 1mm over concrete. The self-healed products were subjected to microstructural investigation such as SEM analysis and XRD analysis to understand the microstructure of precipitated products and the bio- remedial action exhibited by the bacteria. Finally, the paver blocks were produced for the optimum specimens of geopolymer concrete along with fiber and bacteria and its performance over compressive, split tensile, flexural and water absorption characteristics were assessed to determine its adaptability to sustain loading under heavy and very heavy traffic conditions as per Indian Standard 15658 (2006). This research work lays a path for the sustainable development of production of eco-friendly self-healing high strength paver blocks.

在这项研究中，研究了细菌和纤维组合对增强GGBS基地聚合物混凝土性能的作用。在这项研究中，将细菌组合（例如枯草芽孢杆菌和球形芽孢杆菌）与高模量玻璃纤维和低模量聚丙烯纤维结合使用，以生产杂化纤维增强的细菌土聚合物混凝土，该混凝土具有增强的能量吸收特性和在重载下具有更好的后裂性。研究了细菌和纤维在土工聚合物混凝土力学性能方面的综合性能和离散性能。还通过在混凝土上引起1mm的人工裂缝，研究了细菌应变组合对混凝土自我修复的影响。对自愈产物进行微观结构研究，例如SEM分析和XRD分析，以了解沉淀产物的微观结构和细菌表现出的生物修复作用。最后，生产出的摊铺机块是用于地质聚合物混凝土以及纤维和细菌的最佳标本，并评估了其在压缩，劈裂拉伸，挠曲和吸水特性方面的性能，以确定其在重载和极重载条件下承受负荷的适应性。根据印度标准15658（2006）。这项研究工作为生态友好型自修复高强度摊铺机砖生产的可持续发展奠定了道路。