Deformation resilient cement structures using 3D-printed molds.

ABSTRACT: Cementitious structures exhibit high compression strength but suffer from inherent brittleness. Conversely, nature creates structures using mostly brittle phases that overcome the strength-toughness trade-off, mainly through internalized packaging of brittle phases with soft organic binders. Here, we develop complex architectures of cementitious materials using an inverse replica approach where a soft polymer phase emerges as an external conformal coating. Architected polymer templates are printed, cement pastes are molded into these templates, and cementitious structures with thin polymer surface coating are achieved after the solubilization of sacrificial templates. These polymer-coated architected cementitious structures display unusual mechanical behavior with considerably higher tough

SUBMITTER: Sajadi SM 

PROVIDER: S-EPMC7921815 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature