High-Temperature Compressive Properties of 3D Printed Polymeric Lattice-Reinforced Cement-Based Materials.

Currently, research has confirmed the significant potential of 3D printed polymer lattices in enhancing the mechanical properties of cement-based composites. Polymer materials are influenced by high-temperature environments. This study aims to further explore the impact of 3D printed lattice structures on the compressive mechanical properties of cement-based materials under high-temperature conditions. The approach employed in this paper involves utilizing the multiple jet fusion (MJF) technique to fabricate two types of lattices with the same volume fraction within cement-based samples. Uniaxial compression experiments were carried out on cement-based samples both with and without the 3D printed lattice at room temperature, 50 °C, and 100 °C. The research explores the compressive properties of cement-based samples reinforced with different lattice structures at varying ambient temperatures. Additionally, digital image correlation (DIC) technology was utilized to analyze the deformation characteristics of the samples. The experimental results demonstrate that the 3D printed lattice effectively enhances the compressive properties of cement-based materials. However, it is worth noting that the cement-based samples reinforced with this material exhibit higher temperature sensitivity compared to the lattice-free reinforced samples.