Searched for: collection%3Aconference
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De Belie, N. (author)
Within the theme ‘Self-healing materials for prolonged lifetime’ (NMP.2012.2.1-3) of the Seventh Framework Programme, self-healing concrete is an important topic. The project HEALCON, which deals with self-healing concrete to create durable and sustainable concrete structures, is funded by EU-FP7 and started in January 2013. The coordinator of...
conference paper 2013
document
Hilloulin, B. (author), Van Tittelboom, K. (author), Gruyaert, E. (author), Loukili, A. (author), De Belie, N. (author)
Now, most of the capsules used to contain polymeric healing agents in self-healing concrete, are made of glass. However, glass capsules cannot be mixed in concrete and are therefore placed manually into the moulds during concrete casting in laboratory tests. This represents a major drawback for an eventual industrialisation. In this study,...
conference paper 2013
document
Wang, J.Y. (author), Van Vlierberghe, S. (author), Dubruel, P. (author), Verstraete, W. (author), De Belie, N. (author)
Self-healing concrete is regarded as a promising solution to reduce the high maintenance and repair cost of concrete infrastructure. Due to the limited autogenous healing capacity of concrete as such, additives are needed to enhance its self-healing properties. Among various strategies, microbial-based self-healing has gained increasing...
conference paper 2013
document
De Belie, N. (author), Du Prez, F. (author), Terryn, H. (author), Wallaeys, B. (author)
Abstract only.
conference paper 2013
document
Gruyaert, E. (author), Van Tittelboom, K. (author), De Backer, P. (author), Moerman, W. (author), Dekeyser, B. (author), De Belie, N. (author)
Sandwich panels are prefabricated, insulated concrete wall elements, which are sensitive to thermal cracking due to their composition (concrete outer cladding – insulation – concrete inner cladding). During hot days, the temperature of the outer concrete layer can rise up to ~ 60°C and the temperature difference between inner and outer layer...
conference paper 2013
document
Grosse, C.U. (author), Van Tittelboom, K. (author), De Belie, N. (author)
To develop an appropriate method of self-healing for cementitious materials including the right composition and amount of suitable healing agents it is required to investigate the healing efficiency for certain material mixtures. While some researchers evaluate the regain in compressive strength by means of destructive load tests, this method is...
conference paper 2013
document
Van Tittelboom, K. (author), Snoeck, D. (author), Wang, J. (author), De Belie, N. (author)
While the Japanese researchers Ohama et al. [1] already mentioned in 1992 that a self-healing effect was noticed when polymer-modified concrete without hardener was made, the real pioneer in the research on self-healing concrete is Carolyn Dry from Illinois. The first time she proposed the use of encapsulated polymers to obtain self-healing...
conference paper 2013
document
Maes, M. (author), Van Tittelboom, K. (author), De Belie, N. (author)
A lot of damage is reported for constructions in marine environments. Marine environments are very aggressive, because of the high chloride concentration in sea water. Chlorides affect durability by initiating corrosion of the reinforcement steel. When cracks appear in the concrete structures, chlorides will penetrate faster and will initiate...
conference paper 2013
document
Tsangouri, E. (author), Van Tittelboom, K. (author), Hillewaere, X.K.D. (author), Van Hemelrijck, D. (author), De Belie, N. (author), Du Prez, F.E. (author)
Nowadays the self-healing process efficiency in loaded structural materials is evaluated by studying the damage mechanisms. Based on fracture mechanics theories, the resistance to damage and the cracking recovery can be an indication of healing performance. Experimentally, the cracking behavior is quantified by measuring the fracture energy of...
conference paper 2013
document
Snoeck, D. (author), Dubruel, P. (author), De Belie, N. (author)
Cementitious materials are sensitive to crack formation and it would be beneficial if the material could stop the crack propagation, repair the damage and reach again the original liquid-tightness and/or strength. Therefore, a cementitious material with synthetic microfibres and superabsorbent polymers (SAPs) is proposed. Upon crack formation,...
conference paper 2013
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