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<p>A novel method to reinforce cementitious materials by employing a multi-scale metal mechanical metamaterial skeleton is proposed. A multi-scale octet metamaterial was fabricated using metal 3D printing technology as a metallic framework to reinforce the cementitious materials. Axial compression and four-point bending tests were conducted. The results demonstrated that the multi-scale octet metallic lattice framework significantly enhanced the compressive performance and energy absorption capacity of the cementitious materials. The metallic lattice framework transforms the brittle failure of the cementitious material beams into a ductile failure characterized by multiple cracking. The lattice-reinforced cementitious beam specimens not only achieve higher flexural strength but also exhibit superior toughness.</p>

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Multi-Scale Metal Lattice Reinforcement for Enhancing Cementitious Materials

  • 期刊论文

  • 发表日期：

    2025年11月6日

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  • Andi Lai,
  • Di Ou,
  • Jiawei Zhou,
  • Pei Wang,
  • Peiqi Liu,
  • Jiahao Wen,
  • Guo Fu

摘要

A novel method to reinforce cementitious materials by employing a multi-scale metal mechanical metamaterial skeleton is proposed. A multi-scale octet metamaterial was fabricated using metal 3D printing technology as a metallic framework to reinforce the cementitious materials. Axial compression and four-point bending tests were conducted. The results demonstrated that the multi-scale octet metallic lattice framework significantly enhanced the compressive performance and energy absorption capacity of the cementitious materials. The metallic lattice framework transforms the brittle failure of the cementitious material beams into a ductile failure characterized by multiple cracking. The lattice-reinforced cementitious beam specimens not only achieve higher flexural strength but also exhibit superior toughness.