Title:
Cement-Based Composites in Structural Health Monitoring
Author(s):
Francesca Tittarelli, Alessandra Mobili, Paolo Chiariotti, Gloria Cosoli, Nicola Giulietti, Alberto Belli, Giuseppe Pandarese, Tiziano Bellezze, Gian Marco Revel
Publication:
Symposium Paper
Volume:
355
Issue:
Appears on pages(s):
133-150
Keywords:
Durability; Monitoring; Non-destructive Tests, Self-sensing Concrete, Carbon-based additions, Free Corrosion Potential, Impedance Spectroscopy
DOI:
10.14359/51736019
Date:
7/1/2022
Abstract:
To guarantee concrete infrastructure functionality over time inspection and maintenance interventions are required. These inspections are typically scheduled on a periodic basis but may not be sufficient to prevent the onset of deterioration. When these problems occur, extraordinary maintenance operations shall be carried out, causing inconvenience to users and additional costs. The continuous monitoring of the infrastructures allows the transition from programmatic maintenance to predictive maintenance strategies, with a consequent increase in the safety of the structures as well as a reduction in management costs. This work aims to provide a brief overview of continuous monitoring systems for concrete structures developed by Università Politecnica delle Marche, focusing in particular on methods based on free corrosion potential measurement and electrical impedance spectroscopy in the so-called “self-sensing” concrete. The “self-sensing” characteristic of concretes can be improved through conductive additions such as fillers and fibers. The study conducted within the H2020 EU project EnDurCrete has demonstrated how expensive and sometimes toxic commercial conductive carbon-based additions, can be replaced by low-cost, non-toxic industrial by-products, enabling to perform relatively cheap and sustainable continuous monitoring of structures.