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Ullmann, Stefan (author), Lowke, Dirk (author)The chloride migration coefficient is the most important material parameter for the service life prediction of reinforced concrete structures in exposure to chloride. For a comprehensive and precise prediction of the service life, however, further effects such as load-induced microcracks must be taken into account. Currently coupled effects like...conference paper 2021
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Krajnović, Ivana (author), Matthys, Stijn (author)Repair mortars are costly materials with high level of Portland cement and various additives which questions their eco-efficiency. In this respect, cement free material solutions such as alkali-activated mortars based on ground granulated blast furnace slag (BFS) are gaining interest for structural repair. The aim of this research is to study...conference paper 2021
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Tsitova, Aliaksandra (author), Bernachy-Barbe, Fabien (author), Bary, Benoît (author), Hild, François (author)The safety of double wall Concrete Containment Buildings (CCBs) in the French nuclear fleet primarily depends on the level of prestress applied to concrete. The delayed strains in concrete induced by creep and shrinkage cause a loss of prestress in the inner wall that may increase the risk of potential leaks in accidental conditions. The creep...conference paper 2021
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Guo, Wenhao (author), Hu, Jie (author), Ma, Yuwei (author), Huang, Haoliang (author), Wei, Jiangxiong (author), Yu, Qijun (author)Impressed current cathodic protection (ICCP) is an effective corrosion protection and prevention technique for reinforced concrete structures served in chloride-contaminated environment. The acidification damage in the external anode mortar caused by the anodic reactions significantly influences the efficiency of ICCP for reinforced concrete....conference paper 2021
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Tavasoli, S. (author), Breit, W. (author)The effect of type of activator on porosity and CO2 penetration of the alkali activated ground granulated blast furnace slag (GGBS) mortar is an important behavior which is required for designing a durable concrete mixture. This research article investigates the influence of three types of activators consisting of NaOH, Na2.nSiO2 and K2.nSiO2 on...conference paper 2021
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Zhang, C. (author), Deng, Z.C. (author), Zhang, Y.M. (author), Chen, C. (author)This paper develops an empirical model to predict the static yield stress of 3D printing mortar based on the flowability of paste and excess paste thickness. The components of the mortar are divided into paste and aggregate. The relation between the yield stress of mortar and the yield stress of paste and the excess paste thickness is...conference paper 2021
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Chen, Zhipei (author)Currents flowing along paths not being elements of a purpose-built electric circuit, are called stray currents. Various types of reinforced concrete structures (such as viaducts, bridges and tunnels) in the neighborhoods of railways may be subjected to stray current leaking from the rails. In these cases the concrete pore solution acts as an...doctoral thesis 2021
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Mentzinis, Christos (author)Nowadays environmental issues like the depletion of the natural resources and the pollution of the environment have led many researchers to make new projects about the reuse of waste from construction and demolition again in concrete industry. Among available solutions are the partial replacement of cement with recycled ultrafine particles (RUP)...master thesis 2021
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Margaritis, Alexandros (author), Pipintakos, Georgios (author), Varveri, Aikaterini (author), Jacobs, Geert (author), Hasheminejad, Navid (author), Blom, Johan (author), Van den bergh, Wim (author)The fatigue resistance, as a performance indicator, is of paramount importance for the selection and benchmarking of bituminous materials. The bituminous mortar can be considered as the medium that connects and envelopes the coarse aggregate skeleton, and hence will significantly influence the fatigue resistance at bulk-scale. Therefore this...journal article 2021
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Chen, Zhipei (author), Koleva, D.A. (author)Different concrete structures (viaducts, bridges, or tunnels) in the neighborhoods of railways may be subject to the stray current leaking from the rails. In these cases, the reinforcing rebars embedded in concrete act as conductors, “pick up” the stray current, and can corrode. For simulating the stray current-induced corrosion of metals, most...journal article 2021
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Lubelli, B. (author), Moerman, J. (author), Esposito, R. (author), Mulder, K.B. (author)The effect of mortar and brick properties on the growth of ivy-leaved toadflax (Cymbalaria muralis) and yellow corydalis (Pseudofumaria lutea) has been investigated in laboratory. Different mortar compositions were designed and tested in combination with two different bricks. Highly porous bricks and mortars showed good bioreceptivity;...journal article 2021
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Chajec, Adrian (author), Chowaniec, Agnieszka (author), Królicka, Aleksandra (author), Sadowski, Łukasz (author), Żak, Andrzej (author), Piechowka-Mielnik, Magdalena (author), Šavija, B. (author)Siliceous fly ash can be applied as a cement replacement material for mortars used in cement-based floor overlays. At present, there is no knowledge of the appropriate curing conditions that need to be applied on concrete floors. Moreover, previous research related to curing conditions has left research gaps related to the conditions in which...journal article 2021
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Nedeljković, Marija (author), Mylonas, Akis (author), Wiktor, Virginie (author), Schlangen, E. (author), Visser, Jeanette (author)Fine recycled concrete aggregates (fRCA, 0–4 mm) are produced from demolished concrete structures and consist of natural aggregates and old cement mortar. The presence of old cement mortar has detrimental effect on the fresh properties and strength of new concrete. This study aims to investigate the working mechanism and effectiveness of...journal article 2021
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Lubelli, B. (author), Nijland, Timo G. (author), van Hees, R.P.J. (author)Compatibility of repair materials in conservation is a widely desired goal, but difficult to achieve. In this research, the compatibility of four commercial stone repair mortars, commonly used in conservation practice in the Netherlands and neighbouring countries, is discussed. In order to do so, they have been characterized in laboratory....journal article 2021
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Miah, Md Jihad (author), Ali, Md Kawsar (author), Lo Monte, Francesco (author), Chandra Paul, Suvash (author), Babafemi, Adewumi John (author), Šavija, B. (author)Induction furnace steel slag is a secondary product obtained when molten steel is separated from the impurities in the steel-producing furnaces. Though numerous studies have been published on the mechanical strength of concrete/mortar made with steel slag as fine aggregate, relatively few studies focus on the shrinkage, durability (i.e.,...journal article 2021
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Lu, T. (author), Li, Z. (author), Huang, H. (author)Shrinkage-induced cracking can impair the durability of concrete structures. In the past few decades, this topic has drawn more and more attention. Shrinkage of mortar and concrete is actually the result of the interaction between the shrinking cement paste and the non-shrinking aggregates. In recent years, different models that consider the...journal article 2021
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Luiten, Ties (author)The aim of this project was to propose several explorative experiential retail concepts which could strengthen and/or induce the value of the physical retail environment for millennials within developing omnichannel strategies. Additionally, such experiences desirably enhanced the bond between consumer, brand, and product through immersive...master thesis 2020
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Romero Rodriguez, C. (author), França de Mendonça Filho, F. (author), Chaves Figueiredo, S. (author), Schlangen, E. (author), Šavija, B. (author)Recent studies have shown that concrete containing Phase Change Materials (PCM) with low transition temperatures may reduce the number of freeze/thaw cycles suffered by the cementitious composite in temperate climates. Nevertheless, the positive influence of such admixtures on the frost resistance of cement-based materials has not been...journal article 2020
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Zhang, H. (author), Xu, Y. (author), Gan, Y. (author), Schlangen, E. (author), Šavija, B. (author)This paper presents a validation process of the developed multi-scale modelling scheme on mortar composites. Special attention was paid to make the material structure of real and virtual mortar specimens comparable at the meso-scale. The input mechanical parameters of cement paste (both bulk cement paste and interfacial transition zone) at the...journal article 2020
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Ali, Md Kawsar (author), Miah, Md Jihad (author), Paul, Suvash Chandra (author), Babafemi, Adewumi John (author), Kong, Sih Ying (author), Šavija, B. (author)This study evaluates the mechanical, durability, and residual compressive strength (after being exposed to 20, 120, 250, 400 and 600 °C) of mortar that uses recycled iron powder (RIP) as a fine aggregate. Within this context, mechanical strength, shrinkage, durability, and residual strength tests were performed on mortar made with seven...journal article 2020