## 6 Conclusions
In the next steps of this research, the focus will be placed on improving the 3D printed network tightness, modifying the agent viscosity to ensure effective cleansing and replacing the reservoirs with a less stiff and potentially flexible component that does not affect the concrete's response to fracture. Conceptualization, Y.S. and E.T. ; methodology, E.T., Y.S. and C.V.L. ; validation, D.G.A., K.V.T. and N.D.B. ; investigation, C.V.L., Y.S. and E.T. ; data curation, C.V.L. and E.T. ; writing--original draft preparation, E.T. and C.V.L. ; writing--review and editing, D.G.A., Y.S., K.V.T. and N.D.B. All authors have read and agreed to the published version of the manuscript. Financial support of FWO (Fonds Wetenschappelijk Onderzoek-Vlaanderen, 12)7720N (of Tsangouri Eleni)) is gratefully acknowledged. [PERSON] acknowledges funding from the European Union's Horizon 2020 research and innovation program under the [PERSON] grant agreement no. 86006. * [PERSON] et al. (2019) [PERSON] [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON], [PERSON]; [PERSON] [PERSON]; [PERSON]; [PERSON] [PERSON] Feasibility study on real-scale, self-healing concrete slab by developing a smart capsules network and assessed by a plethora of advanced monitoring techniques. _Constr. Build. Mater._**2019**, _228_, 116780. [CrossRef]
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