Searched for: subject:"healing"
(1 - 20 of 287)

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Post, W. (author), Kersemans, M. (author), Solodov, I. (author), Van Den Abeele, K. (author), Garcia Espallargas, Santiago J. (author), van der Zwaag, S. (author)

A comparative study is performed on the monitoring of delamination healing in CFRP-ionomer sandwich composites by non-destructive techniques and destructive compression testing. Artificial delaminations of various areal dimensions and nature were introduced during production of the composites. The extent of the delamination and the healing...

journal article 2017
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Palin, D. (author)
Bacteria-based self-healing concrete is an innovative self-healing materials approach, whereby bacteria embedded in concrete can form a crack healing mineral precipitate. Structures made from self-healing concrete promise longer service lives, with associated economic benefits [1]. Despite concretes susceptibility to marine-based degradation...
doctoral thesis 2017
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Bose, R.K. (author), Enke, Marcel (author), Grande, A.M. (author), Zechel, Stefan (author), Schacher, Felix H. (author), Hager, Martin D. (author), Garcia Espallargas, Santiago J. (author), Schubert, Ulrich S. (author), van der Zwaag, S. (author)

The main aim of this work is to study the respective contribution of the hard and soft blocks of a metal-ligand containing block copolymer to the self-healing behavior. To this aim, different block copolymers containing terpyridine were synthesized using reversible addition-fragmentation chain transfer (RAFT) polymerization. These block...

journal article 2017
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Tabaković, Amir (author), Karač, Aleksandar (author), Schlangen, H.E.J.G. (author)

This paper explores the potential methods for evaluating a healing system for asphalt pavements. The healing system under investigation involves compartmented calcium-alginate fibres encapsulating an asphalt binder healing agent (rejuvenator). This system presents a novel method of incorporating rejuvenators into asphalt pavement mixtures....

journal article 2017
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Tziviloglou, E. (author), Wiktor, V.A.C. (author), Jonkers, H.M. (author), Schlangen, H.E.J.G. (author)
Biogenic self-healing cementitious materials target on the closure of micro-cracks with precipitated inorganic minerals originating from bacterial metabolic activity. Dormant bacterial spores and organic mineral compounds often constitute a biogenic healing agent. The current paper focuses on the investigation of the most appropriate organic...
journal article 2017
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Koppenol, D.C. (author)
Dermal wounds are a significant global problem; although the treatment of these wounds has improved considerably over the last few decades, a treatment still does not result in a complete regeneration of the injured tissue. Instead, the final outcome of the healing process is scar tissue. The material properties of scar tissue are different from...
doctoral thesis 2017
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Farle, A.M. (author)
Damage management and the development of new materials come together in selfhealing Mn+1AXn phase ceramics. These ternary layered carbides and nitrides exhibit a multitude of properties, such as high temperature strength, fracture toughness, thermal and electrical conductivity and machinability, which have been discovered over the past 20 years....
doctoral thesis 2017
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Vicarelli, L. (author)
doctoral thesis 2017
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Qian, Hongchang (author), Xu, Dake (author), Du, Cuiwei (author), Zhang, Dawei (author), Li, Xiaogang (author), Huang, Luyao (author), Deng, Leping (author), Tu, Yunchao (author), Mol, J.M.C. (author), Terryn, H.A. (author)

This work introduces a new self-healing superhydrophobic coating based on dual actions by the corrosion inhibitor benzotriazole (BTA) and an epoxy-based shape memory polymer (SMP). Damage to the surface morphology (e.g., crushed areas and scratches) and the corresponding superhydrophobicity are shown to be rapidly healed through a simple heat...

journal article 2017
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Savija, B. (author), Feiteira, J. (author), Araújo, M. (author), Chatrabhuti, S. (author), Raquez, JM (author), van Tittelboom, K (author), Gruyaert, Elke (author), de Belie, N (author), Schlangen, H.E.J.G. (author)
Polymeric capsules can have an advantage over glass capsules used up to now as proof-of-concept carriers in self-healing concrete. They allow easier processing and afford the possibility to fine tune their mechanical properties. Out of the multiple requirements for capsules used in this context, the capability of rupturing when crossed by a...
journal article 2017
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Tabaković, Amir (author), Copuroglu, O. (author), Post, W. (author), Garcia Espallargas, Santiago J. (author), Schlangen, H.E.J.G. (author)

This article presents development of a novel self-healing technology for asphalt pavements, where asphalt binder rejuvenator is encapsulated within the compartmented alginate fibres. The key objective of the study was to optimise the compartmented alginate fibre design, i.e., maximising amount of rejuvenator encapsulated within the fibre. The...

journal article 2017
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Savija, B. (author), Schlangen, E. (author)
An experimental study of the influence of autogeneous healing on chloride ingress in cracked concrete is presented. In the study, two concrete mixtures (a Portland cement mix and a blast furnace slag mix), two healing regimes (submerged and fog room regime), two cracking ages (14 and 28 days), and multiple crack widths are used as parameters. An...
journal article 2016
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Shen, L. (author)
The excellent mechanical properties in combination with the capability to autonomously repair microcracks when exposed to air of high temperatures make certain MAX phase metallo ceramics promising candidate materials for components in a turbine engine, in particular for those components exposed to high temperatures and having the risk of being...
doctoral thesis 2016
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Susa, A. (author), Bose, R.K. (author), Grande, A.M. (author), van der Zwaag, S. (author), Garcia Espallargas, Santiago J. (author)
Traditional polyetherimides (PEIs) are commonly synthesized from an aromatic diamine and an aromatic dianhydride (e.g., 3,4′-oxidianiline (ODA) and 4,4′-oxidiphtalic anhydride (ODPA)) leading to the imide linkage and outstanding chemical, thermal and mechanical properties yet lacking any self-healing functionality. In this work, we have replaced...
journal article 2016
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Chen, J. (author), Liu, Xian (author), Ye, G. (author)
Microcracks play vital roles in the prediction of the service life of concrete structure. Because microcracks in concrete structure are the preferential ingression channels for aggressive ions, e.g., chloride, sulphate, etc. However, microcracks have potentials to self-heal autogenously due to the continuous hydration of unhydrated cement,...
conference paper 2016
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Sherzer, G. (author), Gao, P. (author), Ye, G. (author), Gal, E. (author)
The heterogeneity of the concrete may be considered on different size scales of observation, ranging from the atomistic scale (10-10m), characterized by the behavior of crystalline particles of hydrated Portland cement, to the macroscopic scale (101 m), where concrete has traditionally been considered homogeneous. The multiscale framework we are...
conference paper 2016
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Tabakovic, A. (author), Post, W. (author), Cantero, D. (author), Copuroglu, O. (author), Garcia Espallargas, Santiago J. (author), Schlangen, H.E.J.G. (author)
This paper explores the potential use of compartmented alginate fibres as a new method of incorporating rejuvenators into asphalt pavement mixtures. The compartmented fibres are employed to locally distribute the rejuvenator and to overcome the problems associated with spherical capsules and hollow fibres. The work presents proof of concept of...
journal article 2016
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Huang, H. (author), Ye, G. (author), Pel, Leo (author)

The aim of this study is to investigate the effect of water migration from cracks into the bulk paste on autogenous self-healing. Nuclear magnetic resonance (NMR) technique was utilized to monitor water migration from cracks into the bulk paste during the process of autogenous self-healing. NMR results show that initially the water in the...

journal article 2016
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Erkens, Sandra (author), Leegwater, G.A. (author), Scarpas, Athanasios (author)
Asfalt heeft de aantrekkelijke eigenschap dat het zichzelf kan herstellen na schade. Er is echter tot op heden geen betrouwbare methode om de healingcapaciteit van een asfaltmengsel te bepalen. Bij het healingproces van een discrete scheur spelen twee processen een rol, namelijk het in contact komen van de oppervlakken van de scheur; het...
conference paper 2016
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Nahar, S.N. (author)
During the service life of flexible asphalt pavements, asphalt concrete degrades due to traffic loading and environmental conditions like temperature, rain, oxidation, ultraviolet-radiation from the sun. All these environmental factors have adverse effects on the performance of bitumen, which is the binder of asphalt concrete. They are known to...
doctoral thesis 2016
Searched for: subject:"healing"
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