Tunnel Boring Machines are widely used for the construction of tunnel infrastructures. As a result, a considerable volume of muck is frequently generated during the excavation process. This muck can be considered an essential resource for other constructions and can be reused again. One of the aspects that generated muck can be reused for the aim of sustainability is backfill grouting, especially in two-component grout, which is a widespread technique with a lot of versatility and its fast reaction in order to avoid settlement. Two-component grout consists of component A, a mortar, and component B, an accelerator, which can be used in shielded TBM.