Abstract
The trial comprised the in-situ construction of five concrete panels using a range of self-healing technologies within the site compound of the A465 Heads of the Valleys Highway upgrading project. Four self-healing techniques were used both individually and in combination with one another. They were: (i) the use of microcapsules developed by the University of Cambridge, in collaboration with industry, containing mineral healing agents, (ii) bacterial healing using the expertise developed at Bath University, (iii) the use of a shape memory polymer (SMP) based system for crack closure and (iv) the delivery of a mineral healing agent through a vascular flow network. Both of the latter, (iii) and (iv), were the product of research undertaken at Cardiff University.
This paper describes the design, construction, testing and monitoring of these trial panels and presents the primary findings of the exercise. The challenges that had to be overcome to incorporate these self-healing techniques into full-scale structures on a live construction site are highlighted, the impact of the different techniques on the behaviour of the panels when subject to loading is presented and the ability of the techniques used to heal the cracks that were generated is discussed.
| Language | English |
|---|---|
| Article number | 51 |
| Journal | Frontiers in Materials |
| Volume | 5 |
| Early online date | 4 Sep 2018 |
| DOIs | |
| Status | E-pub ahead of print - 4 Sep 2018 |
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Large Scale Application of Self-Healing Concrete: Design, Construction and Testing. / Davies, Robert; Teall, Oliver; Pilegis, Martins; Kanellopoulos, Antonios; Sharma, Trupti; Jefferson, Anthony; Gardner, Diane; Al-Tabbaa, Abir; Paine, Kevin; Lark, Robert.
In: Frontiers in Materials, Vol. 5, 51, 04.09.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Large Scale Application of Self-Healing Concrete: Design, Construction and Testing
AU - Davies, Robert
AU - Teall, Oliver
AU - Pilegis, Martins
AU - Kanellopoulos, Antonios
AU - Sharma, Trupti
AU - Jefferson, Anthony
AU - Gardner, Diane
AU - Al-Tabbaa, Abir
AU - Paine, Kevin
AU - Lark, Robert
PY - 2018/9/4
Y1 - 2018/9/4
N2 - Materials for Life (M4L) was a 3 year, EPSRC funded, research project carried out by the Universities of Cardiff, Bath and Cambridge to investigate the development of self-healing cementitious construction materials. This paper describes the UK’s first site trial of self-healing concrete, which was the culmination of that project.The trial comprised the in-situ construction of five concrete panels using a range of self-healing technologies within the site compound of the A465 Heads of the Valleys Highway upgrading project. Four self-healing techniques were used both individually and in combination with one another. They were: (i) the use of microcapsules developed by the University of Cambridge, in collaboration with industry, containing mineral healing agents, (ii) bacterial healing using the expertise developed at Bath University, (iii) the use of a shape memory polymer (SMP) based system for crack closure and (iv) the delivery of a mineral healing agent through a vascular flow network. Both of the latter, (iii) and (iv), were the product of research undertaken at Cardiff University.This paper describes the design, construction, testing and monitoring of these trial panels and presents the primary findings of the exercise. The challenges that had to be overcome to incorporate these self-healing techniques into full-scale structures on a live construction site are highlighted, the impact of the different techniques on the behaviour of the panels when subject to loading is presented and the ability of the techniques used to heal the cracks that were generated is discussed.
AB - Materials for Life (M4L) was a 3 year, EPSRC funded, research project carried out by the Universities of Cardiff, Bath and Cambridge to investigate the development of self-healing cementitious construction materials. This paper describes the UK’s first site trial of self-healing concrete, which was the culmination of that project.The trial comprised the in-situ construction of five concrete panels using a range of self-healing technologies within the site compound of the A465 Heads of the Valleys Highway upgrading project. Four self-healing techniques were used both individually and in combination with one another. They were: (i) the use of microcapsules developed by the University of Cambridge, in collaboration with industry, containing mineral healing agents, (ii) bacterial healing using the expertise developed at Bath University, (iii) the use of a shape memory polymer (SMP) based system for crack closure and (iv) the delivery of a mineral healing agent through a vascular flow network. Both of the latter, (iii) and (iv), were the product of research undertaken at Cardiff University.This paper describes the design, construction, testing and monitoring of these trial panels and presents the primary findings of the exercise. The challenges that had to be overcome to incorporate these self-healing techniques into full-scale structures on a live construction site are highlighted, the impact of the different techniques on the behaviour of the panels when subject to loading is presented and the ability of the techniques used to heal the cracks that were generated is discussed.
U2 - 10.3389/fmats.2018.00051
DO - 10.3389/fmats.2018.00051
M3 - Article
VL - 5
JO - Frontiers in Materials
T2 - Frontiers in Materials
JF - Frontiers in Materials
SN - 2296-8016
M1 - 51
ER -