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Lukovic, M. (author), Schlangen, E. (author), Savija, B. (author), Ye, G. (author), Copuroglu, O. (author)Simulation of mechanical behaviour of heterogeneous materials is only possible if the local properties of the components are known. In recent years nano-indentation is being applied on different levels to obtain local mechanical properties. The aim of this paper is to explore various ways to obtain these properties by combining nano-indentation...conference paper 2015
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Khaliq, J. (author), Li, C. (author), Chen, K. (author), Shi, B. (author), Ye, H. (author), Grande, A.M. (author), Yan, H. (author), Reece, M.J. (author)The effect of substitution and oxidation-reduction on the thermal conductivity of perovskite-like layered structure (PLS) ceramics was investigated in relation to mass contrast and non-stoichiometry. Sr (acceptor) was substituted on the A site, while Ta (donor) was substituted on the B site of La2Ti2O7. Substitution in PLS materials creates...journal article 2015
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Zhang, Y. (author), Ye, G. (author)Due to environmental (low CO2 emission) and economic benefit, supplementary cementitious materials (SCMs) have been widely used in reinforced concrete structures. However, the question from engineering practice is to which extend these blended mixtures do meet the future durability criteria. Chloride ingression is nowadays considered as the main...conference paper 2015
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Pham, P.V. (author), van der Star, WRL (author), van Paassen, L.A. (author), Ye, G. (author)Rice husk ash is a promising pozzolanic material produced from rice husk burning and has significant potential a sustainable replacement for cement in construction and ground improvement applications. In this study the effect of burning conditions on the ash reactivity and its potential for soil stabilization applications have been investigated...book chapter 2015
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- Lukovic, M. (author), Savija, B. (author), Dong, H. (author), Schlangen, E. (author), Ye, G. (author) journal article 2014
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Patel, R.A. (author), Perko, J. (author), Jacques, D. (author), De Schutter, G. (author), Van Breugel, K. (author), Ye, G. (author)Calcium leaching is one of the important degradation mechanisms causing dissolution of the crystalline phases such as, AFm, portlandite increasing capillary porosity. Further it leads to decalcification of an amorphous C-S-H phase causing increase in the gel porosity and in turn degrading the long term performance of concrete structures. In this...conference paper 2014
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Zhang, Y. (author), Ye, G. (author)Concrete is seldom saturated due to its self-desiccation. Even the submerged concrete structures may remain unsaturated for quite a long time. It has been reported the saturation level of pore solution has significant effect on species penetration. However, very little work was proposed regarding the transport properties and serviceability of...conference paper 2014
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Huang, H. (author), Ye, G. (author)In this paper, different mechanisms of self-healing, i.e. self-healing based on adhesive agents, self-healing based on bacteria, self-healing based on autogenous self-healing were described. Their required conditions were summarized. The previous investigations showed that all mechanisms of self-healing are effective to some extend under...conference paper 2014
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Huang, H. (author), Ye, G. (author), Damidot, D. (author)In this study, a coupled transport-reaction model was specifically developed for simulating autogenous self-healing in cementitious materials. The diffusion of ions between the solution in the crack and in the bulk paste is simulated with a transport model. The concentration of ions in the crack can be calculated. As the kinetics of chemical...conference paper 2014
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Huang, H. (author), Ye, G. (author), Damidot, D. (author)In this paper, the proposed coupled transport-reaction model adapted to simulate autogenous self-healing in Portland cement paste is validated with the experimental results. The parameters are studied for modelling the dissolution of cement, the diffusion of ions between the solution in the crack and in the bulk paste and the precipitation of...conference paper 2014
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Ye, Y.E. (author), Van Nes, A. (author)Many new towns are established in China with the intention of providing desirable places to live. Nevertheless, these new towns often lack the flourishing street life, small businesses, and variety of social activities that old towns have to offer. This paper explores the spatial reasons why old towns tend to perform socio-economically better...journal article 2014
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Ye, H. (author)Solid-State Lighting (SSL), powered by Light-Emitting Diodes (LEDs), is an energy-efficient technology for lighting systems. In contrast to incandescent lights which obtain high efficiency at high temperatures, the highest efficiency of LEDs is reached at low temperatures. The thermal management in LED product is then a key design parameter as...doctoral thesis 2014
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- Van Geenhuizen, M.S. (author), Ye, Q. (author), Au-Yong-Oloviera, M. (author) conference paper 2014
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van Geenhuizen, M.S. (author), Ye, Q. (author)Transitions towards higher levels of sustainability have been subject of many investigations, both theoretically and empirically. While the focus has been on the scale of national innovation systems and technology systems, the quality of space (place) with regard to regions and cities has received scarce attention or no attention at all, thereby...conference paper 2014
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Lukovic, M. (author), Savija, B. (author), Schlangen, E. (author), Ye, G. (author), van Breugel, K. (author)Differential shrinkage between repair material and concrete substrate is considered to be the main cause of premature failure of repair systems (Martinola, Sadouki et al. 2001, Beushausen and Alexander 2007). Magnitude of induced stresses depends on many factors, for example the amount of restraint, moisture gradients caused by different curing...conference paper 2014
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- Van Nes, A. (author), Ye, Y. (author) conference paper 2014
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Van Nes, A. (author), Ye, Y. (author)During the last decade, advances in software, spatial analyses methods, and improved capacity of computers have made it possible to quantitatively analyse morphological features of whole cities. This emerging trend of combining geographic information system (GIS) with traditional urban morphology brings some new insights into the evolving logic...conference paper 2014
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Yu, Z. (author), Ye, G. (author), Van Breugel, K. (author), Chen, W. (author)Deterioration of microstructure in cement concrete will cause changes in the transport properties of the concrete. Transport properties at different ages of the concrete provide information about the microstructural changes of the material. A way to measure the transport properties, i.e. the chloride diffusion coefficient, in the laboratory is...conference paper 2014
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Zhang, Y. (author), Wu, B. (author), Zhou, J. (author), Ye, G. (author), Shui, Z. (author)Concrete containing supplementary cementitious materials (SCMs) has different durability properties from that containing pure Portland cement. The durability of concrete is always associated with the properties of microstructure, especially pore structure. Pressurization–Depressurization Cycling Mercury Intrusion Porosimetry (PDC-MIP) was...conference paper 2014
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Yu, Z. (author), Ye, G. (author), Hunger, M. (author), Noort, R. (author)Chloride-induced corrosion of reinforced concrete is one of the main deterioration mechanisms leading to shortening of the service life of concrete structures. Therefore, assessment of the resistance of concrete to chloride ingress plays an important role in predicting the service life of such structures. The Rapid Chloride Migration (RCM) test...conference paper 2013