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Self-sensing materials are a promising alternative for building sensorization and Structural Health Monitoring (SHM). Cement-based materials (CBM) can acquire self-sensing capacity due to piezoresistivity (PZR) by including carbon-based components. PZR can be used to measure stress/strain by monitoring the variation of electrical resistivity. Several studies have been conducted on self-sensing cementitious materials (SSCM) with carbon-based components. However, very few address SSCM for 3D printing applications. This investigation assessed piezoresistivity (PZR) of 3D printed CBM for self-sensing applications in Architecture, by incorporating different amounts of carbon microfibers and nanotubes. Mixtures’ printability was preliminary evaluated by using an automated mortar extruder. Fractional Change Resistivity (FCR) was calculated on different specimens under cyclic load tests. The experimental results showed the functionalization of 3D printable mortars with self-sensing capacity through the incorporation of different types of carbon-based components that fulfils the fresh and hardened properties for Architectural applications. This innovative material can be implemented in constructive elements for building monitoring.

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Functionalization of Self-Sensing 3D Printed Mortars for Building Monitoring

  • 会议论文

  • 发表日期：

    2026年

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  • Yaiza Lopesino,
  • Javier Puentes,
  • Alvaro Marquez,
  • Gonzalo Barluenga

摘要

Self-sensing materials are a promising alternative for building sensorization and Structural Health Monitoring (SHM). Cement-based materials (CBM) can acquire self-sensing capacity due to piezoresistivity (PZR) by including carbon-based components. PZR can be used to measure stress/strain by monitoring the variation of electrical resistivity. Several studies have been conducted on self-sensing cementitious materials (SSCM) with carbon-based components. However, very few address SSCM for 3D printing applications. This investigation assessed piezoresistivity (PZR) of 3D printed CBM for self-sensing applications in Architecture, by incorporating different amounts of carbon microfibers and nanotubes. Mixtures’ printability was preliminary evaluated by using an automated mortar extruder. Fractional Change Resistivity (FCR) was calculated on different specimens under cyclic load tests. The experimental results showed the functionalization of 3D printable mortars with self-sensing capacity through the incorporation of different types of carbon-based components that fulfils the fresh and hardened properties for Architectural applications. This innovative material can be implemented in constructive elements for building monitoring.