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Reinhardt, H.W. (author)
Uniaxial impact tensile tests on plain concrete were carried out with the aid of Split Hopkinson Bar equipment with stress rates of up to 60000 N/mm2. s. Various concrete mixes were investigated under. dry and wet conditions. All the concretes showed an increase in strength with increasing stress rate. At very high stress rates the strength may...
journal article 1982
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Cornelissen, H.A.W. (author)
Concentric tensile and flexural tensile fatigue tests were carried out on plain concrete specimens. The effects of pulsating tensile loadings as well as of alternating tensilecompressive loadings were studiep. The results of the constant-amplitude tests have been presented in S-N diagrams and a Goodman diagram. From these results it emerged that...
journal article 1984
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Van Mier, J.G.M. (author), Nooru-Mohamed, M.B. (author), Timmers, G. (author)
In the present paper the results of an exploratory study with the recently developed biaxial tension/shear apparatus of the Stevin Laboratory of Delft University of Technology are presented. The apparatus is unique in the sense that square double-edgenotched concrete plates up to a size of 200 x 200 mm can be loaded in any combination of tension...
journal article 1991
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Van Mier, J.G.M. (author)
Fracture mechanics of concrete has developed into an active field of research in the past decades. It promises a rational solution technique to structural problems in reinforced concrete in the limit state. Numerical tools have been developed on the basis of fracture mechanics theories. The question to be addressed is how much of the early...
journal article 1995
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Sadouki, H. (author), Van Mier, J.G.M. (author)
In this paper a numerical model for simulating crack growth processes caused by moisture movement in a porous multiphase material like concrete is proposed. In the model, the material is schematized as a regular triangular network of beam elements. The meso-material structure of the material is projected on top of the lattice and different...
journal article 1996
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Gulikers, J.J.W. (author)
Chloride-induced reinforcement corrosion in concrete is characterised by the action of so-called macrocells. The associated localised form of corrosion results from the strong electrochemical interaction between the relatively small pitting sites acting as anodes and the large passive steel areas acting as cathodes. The existence of macrocell...
journal article 1996
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Van Breugel, K. (author)
Second edition.
book 1997
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Van Vliet, M.R.A. (author), Van Mier, J.G.M. (author)
A series of uniaxial tension experiments has been conducted to investigate the size effect on strength and fracture energy of concrete and sandstone. The experiments were carried on specimens of six different sizes in a scale range of 1:32. Depending on the material and the curing conditions a stronger or weaker size effect on the nominal...
journal article 2000
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Van Zijl, G.P.A.G. (author), De Borst, R. (author), Rots, J.G. (author)
The response of cementitious materials is highly time dependent. On the one hand, it can lead to delayed collapse of structures fabricated of such materials. On the other hand, the time dependence is associated with the relaxation of peak stresses, which avoids, or postpones damage. A finite element formulation is presented for the analysis of...
journal article 2000
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Meijers, S.J.H. (author)
doctoral thesis 2003
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Fellinger, J.H.H. (author)
Hollow core (HC) slabs are made of precast concrete with pretensioned strands. These slabs are popular as floor structures in offices and housing. At ambient conditions, the load bearing capacity can be dominated by four different failure modes, i.e. flexure, anchorage, shear compression and shear tension. As the economic production process does...
doctoral thesis 2004
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Takada, K. (author)
doctoral thesis 2004
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Gaal, G.C.M. (author)
In the early 20th century, the general idea was that concrete structures would never show deterioration. However, in the 1990s concrete structures showed an increase in number of cracks and area of spalling. Especially spalling of the concrete cover could create a harmful situation to the users. Spalling of the cover is caused by corrosion of...
doctoral thesis 2004
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Stroeven, P. (author), Guo, Z. (author)
This paper concentrates on discrete element computer-simulation of concrete. It is argued on the basis of stochastic heterogeneity theory that modern concurrent-algorithm-based systems should be employed for the assessment of pore characteristics underlying durability performance of cementitious materials. The SPACE system was developed at Delft...
journal article 2006
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Van Kasteren, J. (author)
Even concrete is not as hard as it looks. Sea water, salt on icy roads, and indirectly even carbon dioxide from the air can corrode the steel of the reinforcing bars and so threaten the strength and integrity of a bridge pier, jetty, or viaduct. Dessi Koleva, a chemical engineer from Bulgaria, spent her doctoral research at the Faculty of Civil...
journal article 2006
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This booklet comprises the extended abstracts to be presented at the Ma(gni)FiCo workshop held in Delft, The Netherlands, on 17-18 June 2009. The spirit of this workshop is to have a small gathering with ample time for lively conversation and interaction among the student and faculty researchers. As a partial acronym, Ma(gni)FiCo stands for a...
book 2009
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Nguyen, V.P. (author), Stroeven, M. (author), Sluys, L.J. (author)
In this contribution, we present the mechanical behaviour of the hardening cement paste explicitly taking into account its complex microstructure. The microstructure of the cement paste is obtained via numerical cement hydration simulation. A simple nonlocal isotropic damage model is adopted for different constituents of the cement paste. The...
conference paper 2009
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Rots, J.G. (author), Invernizzi, S. (author), Belleti, B. (author), Hendriks, M.A.N. (author)
conference paper 2009
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Schipper, H.R. (author), Vambersky, J.N.J.A. (author)
The manufacturing of double curved precast concrete elements is still expensive, due to the high costs and limited possibilities for repetitive use of the molds or formwork. The goal of a PhD project recently initiated at TU Delft is to develop a production method that overcomes these difficulties by enabling the mold to be used many times and...
journal article 2010
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Schipper, H.R. (author)
Due to the complexity of the freeform shapes it is often not possible to distinguish any repetitive elements in freeform buildings at all. Most freeform building designs consist of many single or double curved surfaces which require complex shapes for the mould and element edges. Since the costs of the moulds (formwork) for precast concrete make...
conference paper 2010
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