Searched for: author:"Savija, B."
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Xu, Y. (author), Zhang, H. (author), Gan, Y. (author), Šavija, B. (author)
Cementitious materials are widely used in construction. For their low ductility, they typically need to be reinforced by steel rebars, which cause potential corrosion problems. Polymeric reinforcement, which does not have corrosion problems, has been used to replace steel rebars. However, a relatively high reinforcing ratio is usually...
journal article 2021
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Nedeljković, Marija (author), Visser, Jeanette (author), Šavija, B. (author), Valcke, Siska (author), Schlangen, E. (author)
This paper discusses the state-of-the-art of the fine recycled concrete aggregates (fRCA), focusing on their physical and chemical properties, engineering properties and durability of concretes with fRCA. Based on the systematic review of the published literature, it is impossible to deduce without any further research the guidelines and...
review 2021
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França de Mendonça Filho, F. (author), Copuroglu, Oguzhan (author), Schlangen, E. (author), Šavija, B. (author)
X-ray computer scanning tomography (CT scan) is an increasingly more available technique, which has been applied to material sciences for years. Although most of its use is qualitative for gaining insights on material behavior, quantitative analysis for estimations of deterioration rates is possible. This paper describes an unbiased,...
journal article 2021
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Xu, Y. (author), Zhang, H. (author), Schlangen, E. (author), Lukovic, M. (author), Šavija, B. (author)
Auxetic behavior refers to material with negative Poisson's ratio. In this research, a new type of cementitious auxetic material is developed. A novel crack bridging auxetic mechanism is discovered which is in contrast with a local buckling mechanism commonly employed to trigger auxetic behavior. Taking advantage of 3D printing techniques,...
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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Zhang, H. (author), Xu, Y. (author), Gan, Y. (author), Chang, Z. (author), Schlangen, E. (author), Šavija, B. (author)
Application of micromechanical modelling of hydrated cement paste (HCP) gains more and more interests in the field of cementitious materials. One of the most promising approaches is the use of so-called microstructure informed micromechanical models, which provides a direct link between microstructure and mechanical properties. In order to...
journal article 2020
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Khern, Yih Chen (author), Paul, Suvash Chandra (author), Kong, Sih Ying (author), Babafemi, Adewumi John (author), Anggraini, Vivi (author), Miah, Md Jihad (author), Šavija, B. (author)
Studies have shown that the incorporation of waste tire rubber aggregates reduces the strength, increases permeability and decrease thermal conductivity of concrete. However, only a few studies have investigated the effect of surface-modified rubber aggregates on the properties of concrete. This study investigates the effect of the surface...
journal article 2020
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Chandra Paul, Suvash (author), van Zijl, Gideon P.A.G. (author), Šavija, B. (author)
This article reviews the literature related to the performance of fiber reinforced concrete (FRC) in the context of the durability of concrete infrastructures. The durability of a concrete infrastructure is defined by its ability to sustain reliable levels of serviceability and structural integrity in environmental exposure which may be harsh...
review 2020
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Xu, Y. (author), Schlangen, E. (author), Lukovic, M. (author), Šavija, B. (author)
This research presents an investigation of the compressive behavior of auxetic cementitious cellular composites (CCCs) using a combination of experiments and finite element (FE) simulations. Typical auxetic centrosymmetric geometry was used as unit cells for the cellular structure and fiber reinforced cementitious mortar were used as...
journal article 2020
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Rossi, E. (author), Polder, R.B. (author), Copuroglu, Oguzhan (author), Nijland, Timo (author), Šavija, B. (author)
Although reinforcement corrosion is a well-known issue, which are the locations of the steel/concrete interface most sensitive to pitting corrosion is still an unclear issue. In this study, X-ray computed tomography is used to characterize eight 20-years-old reinforced concrete cores naturally deteriorated due to chloride-induced corrosion....
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
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Romero Rodriguez, C. (author), Deprez, Maxim (author), França de Mendonça Filho, F. (author), van Offenwert, Stefanie (author), Cnudde, Veerle (author), Schlangen, E. (author), Šavija, B. (author)
Superabsorbent Polymers (SAP) have been recently subject of investigation as smart admixtures for cement-based materials. The properties of these polymers enable their use for internal curing, increasing freeze/thaw resistance, boosting autogenous self-healing and providing a crack self-sealing effect in cementitious composites. Except for...
book chapter 2020
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Šavija, B. (author), Zhang, H. (author), Schlangen, E. (author)
This work aims to understand deformation and fracture processes in blast furnace slag cement pastes made using CEM III/B which is commonly used in the Dutch infrastructure sector. First, based on our previous work on Portland cement pastes, a micromechanical model utilizing nanoindentation and X-ray computed tomography (CT) for input is...
journal article 2020
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Gan, Y. (author), Vandamme, Matthieu (author), Zhang, Hongzhi (author), Chen, Y. (author), Schlangen, E. (author), van Breugel, K. (author), Šavija, B. (author)
This study proposes an experimental method for studying the short-term creep behaviour of cement paste at micro-scale. The micro-bending tests on miniaturized cantilever beams were used to characterize the viscoelastic properties of cement paste. The effects of w/b ratio, the type of binder and the stress level on the microscopic creep...
journal article 2020
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Jiang, Nengdong (author), Zhang, Hongzhi (author), Chang, Z. (author), Schlangen, E. (author), Ge, Zhi (author), Šavija, B. (author)
A combination of laboratory experiments and numerical simulations at multiple length scales can provide in-depth understanding of fracture behaviour of hydrated cement paste (HCP). To that end, the current work presents a numerical study on compressive failure of hydrated cement paste (HCP) at the micro-scale. Virtual specimens consisting of...
journal article 2020
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Figueiredo, Stefan C. (author), van Overmeir, A.L. (author), Nefs, Karsten (author), Schlangen, E. (author), Salet, Theo A. M. (author), Šavija, B. (author), Suiker, Akke S. J. (author), Bos, Freek P. (author)
Over the past few years, several studies have shown the potential of three-dimensional concrete printing (3DCP) for applications in building and civil engineering. However, only a few studies have compared the properties of the fresh printing material and the quality of the printed elements from different printing facilities. Variations in the...
conference paper 2020
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Chang, Z. (author), Schlangen, E. (author), Šavija, B. (author)
This paper reports an extended lattice model for printing process simulation of 3D printed cementitious materials. In this model, several influencing factors such as material and geometric nonlinearity are considered. Using this model, green strength of cementitious material is investigated, deformation and crack pattern can be derived, which...
book chapter 2020
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Xu, Y. (author), Schlangen, E. (author), Šavija, B. (author)
Mechanical behavior of cementitious cellular composites (CCC) with auxetic behavior was investigated under uniaxial compression and cyclic loading. Three cellular structures with different geometrical parameters are designed and prepared by 3D printing technique. Meanwhile, plain mortar and fiber reinforced mortar are used as constituent...
book chapter 2020
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Siang Ng, Ding (author), Paul, Suvash Chandra (author), Anggraini, Vivi (author), Kong, Sih Ying (author), Qureshi, Tanvir Shams (author), Romero Rodriguez, C. (author), Liu, Qing feng (author), Šavija, B. (author)
This study explores the effects of different types of nanoparticles, namely nano-SiO<sub>2</sub> (NS), nano-TiO<sub>2</sub> (NT), and nano-Fe<sub>2</sub>O<sub>3</sub> (NF) on the fresh properties, mechanical properties, and microstructure of cement mortar containing fly ash as a supplementary cementitious material. These nanoparticles existed...
journal article 2020
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Perko, Janez (author), Ukrainczyk, Neven (author), Šavija, B. (author), Phung, Quoc Tri (author), Koenders, Eddie A. B. (author)
A coupled numerical approach is used to evaluate the influence of pore connectivity and microcracks on leaching kinetics in fully saturated cement paste. The unique advantage of the numerical model is the ability to construct and evaluate a material with controlled properties, which is very difficult under experimental conditions. Our analysis...
journal article 2020
Searched for: author:"Savija, B."
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