Bacteria-based self-healing concrete has the ability to heal cracks due bacterial conversion of incorporated organic compounds into calcium carbonate. Precipitates seal cracks, theoretically increasing service life constructions. The aim this paper is propose a precursor for bacteria-based derived from waste streams, produced in line with circular economy principle and ideally more affordable t...

The goal of this study is to explore a new self-healing concept in which fungi are used as a self-healing agent to promote calcium mineral precipitation to fill the cracks in concrete. An initial screening of different species of fungi has been conducted. Fungal growth medium was overlaid onto cured concrete plate. Mycelial discs were aseptically deposited at the plate center. The results showe...

Multiple healing cycles of a single crack in a brittle polymer coating are achieved by microvascular delivery of a two-part, epoxy-based self-healing chemistry. Epoxy resin and amine-based curing agents are transported to the crack plane through two sets of independent vascular networks embedded within a ductile polymer substrate beneath the coating. The two reactive components remain isolated ...

Self-healing materials are smart materials with the capability to repair itself autonomously after being damaged. Since cracks commonly occur in structures consisting of materials like concrete, polymers, etc., a self-healing mechanism is crucial for the durability of the material. In this research, we present a two-dimensional mathematical model of the self-healing process in concrete. This mo...

Automation of organizational processes that make intensive use of expert knowledge has on the intelligent agent paradigm an appropriate metaphor. The idea would be introducing autonomous agents carrying out tasks on behalf of human users in organizational processes. Knowledge transference from experts to autonomous agents has been treated on different ways taking advantage of more than 20 years...

Self-healing materials are inspired by biological systems in which damage triggers an autonomic healing response. This new paradigm in materials design has led several exciting interdisciplinary approaches involving chemistry, mechanics and materials processing to successfully incorporate self-healing functionality in polymers and composites. The first clear demonstration of self-healing in an ...

In the concrete industry, legal disputes might occur when a built structure performs worse than it was supposed to during design phase. When dealing with underperformance of self-healing (e.g., no regain water tightness after cracking), these likely be related questioning if healing agents were actually included in material or not. this study, methodology based on Gas chromatography is proposed...