Projects / Programmes
Sensors for in-situ characterisation of capillary water in reinforced concrete
Code |
Science |
Field |
Subfield |
2.01.01 |
Engineering sciences and technologies |
Civil engineering |
Building materials |
Code |
Science |
Field |
T153 |
Technological sciences |
Ceramic materials and powders |
reinforced concrete, capillary water, corrosion, potentiometric sensors, ISFET, ChemFET, ion selectivity, membranes, sol-gel, thin films, pH
Researchers (8)
Organisations (2)
Abstract
The activities in the proposed research project will be focused on the "sol-gel" and "wet chemistry" preparation of ion-sensitive membranes on the gates of field-effect transistors (FETs) and on dielectric layer of dielectric/semiconductor structures, to obtain "Ion-Sensitive Field-Effect Transistors" (ISFETs) and "Chemically Sensitive Capacitors" (ChemCaps), respectively. These solid-state electronic structures will be developed in ion-sensitive sensors for detection of pH, free Cl- and SO42- ions in the capillary water of reinforced concrete. All sensors and analytical procedures will be designed in a way to facilitate rapid and selective detection of ions. The sensors will be integrated in a robust solid-state device, which will enable simultaneous potentiometric detection of ions in a small spot of concrete. Such device will provide means for continuous long-term "on-site" monitoring of pH, Cl- and SO42- ions in the capillary water of reinforced concrete constructions.