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Systematic research on compucrete can shed light on some controversial issues in concrete technologyLi, K. (author), Stroeven, P. (author)Realistically simulating fresh and hardening cementitious materials renders possible understanding controversial issues existing in the field of concrete technology. The experimental studies on the impact of the interfacial transition zone (ITZ) on permeability of concrete reveal two controversial results. The first involves the concept of...review 2017
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Liu Cheng, Alexander (author), Bier, H.H. (author), Mostafavi, Sina (author)This paper presents a new instance in a series of discrete proof-of-concept implementations of comprehensively intelligent built-environments based on Design-to-Robotic-Production and -Operation (D2RP&O) principles developed at Delft University of Technology (TUD). With respect to D2RP, the featured implementation presents a customized...conference paper 2017
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Yang, Z. (author), Polder, R.B. (author), Mol, J.M.C. (author)Owing to the unique molecular structure and high ion exchange capacity, hydrotalcites are believed to have a potential to be modified and tailor-made as an active corrosion protective component of reinforced concrete. In this paper, two types of modified hydrotalcites (MHT-pAB and MHT-NO2) were tested both in alkaline solution and mortar for...journal article 2017
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Vegt, I. (author)The fracture properties of concrete are rate dependent. In this thesis the results on tensile tests at static, moderate and high loading rate are presented. The results show the influence of the loading rate not only the tensile strength, but also on the fracture energy, stress-defromation relation and fracture parameters, like fracture lengths...doctoral thesis 2016
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Electrochemical lithium migration to mitigate alkali-silica reaction in existing concrete structuresSilva de Souza, L.M. (author)Alkali-silica reaction (ASR) is a deterioration process that affects the durability of concrete structures worldwide. During the reaction, hydroxyl and alkali ions present in the pore solution react with reactive silica from the aggregate, forming a hygroscopic ASR gel. Alternatively, the silica structure is attacked by hydroxyl ions and the...doctoral thesis 2016
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Esposito, R. (author), Hendriks, M.A.N. (author)The alkali-silica reaction (ASR) in concrete is one of the most harmful deterioration processes, which leads to expansion and cracking of the material. To understand the evolution of ASR in concrete and its deteriorating impact on the material, a multiscale material model, from aggregate to concrete level, is proposed. The concrete, which at...journal article 2016
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Esposito, R. (author)The assessment of concrete structures affected by alkali-silica reaction (ASR) is a complex problem due to the multiscale nature of this long-term phenomenon. The reaction starts within the concrete constituents with the formation of an expansive alkali-silica gel at reaction products level. Being the expansive gel confined within the concrete...doctoral thesis 2016
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Onghena, S. (author), Grunewald, S. (author), Schutter, G (author)The effective production of concrete structures requires adequate control of<br/>strength development in order to realise the scheduled production cycles. Demoulding of elements can take place only when sufficient strength is gained and the production cycle has to be maintained with seasonal changes of temperature. The use of Portland Cement...conference paper 2016
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Yu, C. (author), Hoogenboom, P.C.J. (author), Rots, J.G. (author)Sequentially linear analysis (SLA) is an alternative to the Newton-Raphson method for analyzing the nonlinear behavior of reinforced concrete and masonry structures. In this paper SLA is extended to load cases that are applied one after the other, for example first dead load and then wind load. It is shown that every nonlinear analysis step can...conference paper 2016
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Pacheco, Jose (author), Polder, R.B. (author)Chloride induced reinforcement corrosion is the predominant degradation mechanism affecting reinforced concrete structures. Chlorides (Cl<sup>-</sup>) contained in sea water or de-icing salts penetrate through concrete pores by diffusion and/or convection. Reinforcement corrosion initiates when the Cl concentration at the reinforcing steel...journal article 2016
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Stroeven, P. (author), Le, L.B.N. (author)Porosimetry of matured cementitious materials is of hiigh interest, because durability is governed by the capillary pore network structure. Experimental approaches are time-consuming, laborious and thus expensive. Fast developments in computer technology make it nowadays possible quite realistically producing cementitious materials in virtual...conference paper 2013
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Wegen, G. Van der (author), Polder, R.B. (author), Breugel, K. Van (author)Nowadays major structures require a service life of 100 years or even more. CUR committee VC81 has developed a guideline for service life design based on initiation of corrosion due to chloride penetration for exposure classes XD or XS. A semi-probabilistic simplification of the DuraCrete methodology is introduced with a probability of failure...journal article 2012
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Qian, Z. (author)Concrete is a composite construction material, which is composed primarily of coarse aggregates, sands and cement paste. The fracture processes in concrete are complicated, because of the multiscale and multiphase nature of the material. In the past decades, comprehensive effort has been put to study the cracks evolution in concrete, both...doctoral thesis 2012
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Stroeven, P. (author), Hu, J. (author)As a composite material, the performance of concrete materials can be expected to depend on the properties of the interfaces between its two major components, aggregate and cement paste. The microstructure at the interfacial transition zone (ITZ) is assumed to be different from the bulk material. In general, properties of conventional concrete...journal article 2006
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- Bisschop, J. (author) doctoral thesis 2002
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Jankovic, D. (author), Van Mier, J.G.M. (author)The goal of this study is to develop a numerical model for the simulation of crack growth due to moisture flow in the porous zone between aggregate and matrix (interfacial transition zone, ITZ), where cracking in concrete originates. Two models are coupled based on similarities in their mesh shape: a Lattice Gas Automaton for moisture flow and a...journal article 2001
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- De Borst, R. (author) journal article 1997
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- Sluys, L.J. (author), De Borst, R. (author) journal article 1996
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- Feenstra, P.H. (author), De Borst, R. (author) journal article 1996
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