The paper examines the effect of the content of three-periodic surfaces (TPS) printed on a 3D-printer as a reinforcing frame filled with self-sealing cement mortar on the physico-mechanical properties of the resulting composite product. The solution includes - metakaolin, microcalcite and a superplasticizer to ensure fluidity at a fixed water-cement ratio. The samples were subjected to strength tests (compression and bending) on the 28th day of hardening. The results showed that using the TPS as a frame increases the bending strength by up to 100 %. The data obtained confirm the prospects for further development of such composite products for use in the construction industry.

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