Active control of concrete curing by acoustic emission (ACCCAE)

Project Details

Description

Acoustic monitoring has recently significantly contributed to the
understanding of processes in fresh cementitious media. The
ambition of this project is, for the first time, to use the real time
acoustic emission (AE) behavior to control the curing of the material,
aiming at better mechanical properties and at the same time use the
recorded data to make projections towards the final quality of the
hardened medium. Processes like hydration and shrinkage cracking,
which are crucial for mechanical properties gain, also produce high
amounts of detectable AE during the fresh state. Therefore, acoustic
techniques due to their non-invasive and sensitive nature in
combination with optical techniques for displacement measurements
form an excellent platform to study the material but most importantly
to steer the curing during the very delicate phase of hydration taking
advantage of the real time information. This obtains even higher
importance when considering modern admixtures like super
absorbent polymers and the effort to control their behavior, an aspect
that is also treated herein in order to improve the material
performance. Optimizing the mechanical properties of a given mix
ensures long standing materials, contributing to sustainability of the
built environment which is the driving force behind the research. VUB
and UGent have strong tradition of cooperation in the field, while
contribution from Kyoto University guarantees feedback from a
technologically advanced partner
Acronymfwoal986
StatusActive
Effective start/end date1/01/2131/12/24

Keywords

  • acoustic emission
  • wave propagation
  • fresh concrete quality

Flemish discipline codes

  • Construction materials
  • Destructive and non-destructive testing of materials
  • Non-destructive testing, safety and diagnosis