Graphene-based resistive humidity sensor for in-situ monitoring of drying shrinkage and intrinsic permeability in concrete
type: Dataset
description: Nanosensors dedicated to the structural health monitoring of concrete structures have been only marginally studied. They would however be particularly well-suited to monitor durability-related processes, as these phenomena involve transport of gas and liquids through micro and nano-porosity. In this paper we discuss the relevance and feasibility of embedding rela-tive humidity nanosensors within concrete. It appears that the localized, continuous knowledge of relative humidity within a concrete structure could provide a useful insight into drying shrinkage; it could also contribute to improved intrinsic permeability measurements, leading to improved assessment of structural durability. For the task, we propose a low-cost, downscalable resistive device made of a 10 nm graphene sheet grown directly on glass and atop which are ink-jet printed silver electrodes. The device resistance increases significantly with relative humidity (RH), especially above 40% RH. Relative amplitude of variations are only of about 3% for the two tested devices, but absolute variations (80 Ohms/sq and 480 Ohms/sq) appear measurable by a low-cost and robust signal conditioning electronics. Thus, the idea of using our graphene-based resistive device for embedded humidity monitoring in concrete ap-pears quite promising.
landing page: 4th International Symposium on Nanotechnology in Construction
keyword: conference-papers
keyword: controle
keyword: durabilite
keyword: humidite
keyword: infoeu-reposemanticsconferenceobject
keyword: ouvrage-dart-gen
keyword: securite-structurelle
keyword: spimatengineering-sciences-physicsmaterials
keyword: surveillance
issued: 2026-05-09T21:59:05.857343
modified: 2026-05-09T21:59:05.857347
language: en
contact point: Organization
  fn: CCSD

test_moissonnage_selune
type: Agent

Graphene-based resistive humidity sensor for in-situ monitoring of drying shrinkage and intrinsic permeability in concrete
type: Distribution
format: HTML
access URL: https://hal.science/hal-00857257
issued: 2026-05-09T21:59:05.863700
modified: 2026-05-09T21:59:05.848569