Searched for: subject:"Architecture%5C%2Band%5C%2BBuilding"
(1 - 17 of 17)
document
Visser, J.H.M. (author)
The lack of resistance models to determine the penetration of airborne chlorides into the concrete makes service-life prediction hardly possible for concrete structures exposed to chlorides, something badly needed as airborne chlorides can lead to severe bar corrosion even at 10 km (6 miles) from the sea. Predicting chloride penetration...
conference paper 2018
document
Angst, U.M. (author), Geiker, M.R. (author), Michel, A. (author), Gehlen, C. (author), Wong, H. (author), Isgor, O.B. (author), Elsener, B. (author), Hansson, C.M. (author), Francois, R. (author), Hornbostel, K. (author), Polder, R.B. (author), Alonso, M.C. (author), Sanchez, M. (author), Correia, M.J. (author), Criado, M. (author), Sagues, A. (author), Buenfeld, N. (author)
Although the steel–concrete interface (SCI) is widely recognized to influence the durability of reinforced concrete, a systematic overview and detailed documentation of the various aspects of the SCI are lacking. In this paper, we compiled a comprehensive list of possible local characteristics at the SCI and reviewed available information...
article 2017
document
Holthuizen, P.E. (author), Çopuroglu, O. (author), Polder, R.B. (author)
In the Netherlands civil engineering structures, such as overpasses, bridges and tunnels are generally built using blast furnace slag cement (BFSC, CEM III/B) concrete, because of its high resistance against chloride penetration. Although the Dutch experience regarding durability performance of BFSC concrete has been remarkably good, its...
conference paper 2017
document
Pacheco, J. (author), Polder, R.B. (author)
Chloride induced reinforcement corrosion is the predominant degradation mechanism
article 2016
document
Yang, Z. (author), Fischer, H. (author), Polder, R. (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 component of mortar and/or concrete. In this paper, two types of modified hydrotalcites (MHT-pAB and MHT-NO2) were incorporated into cement mortars with two dosage levels replacing 5%...
article 2015
document
Ariës, M.B.C. (author), Bluyssen, P.M. (author), TNO Bouw en Ondergrond (author)
Scientists warn us about climate change and its effects on the outdoor environment. These effects can have significant consequences for the indoor environment, also in the Netherlands. Climate changes will affect different aspects of the indoor environment as well as the stakeholders of that indoor environment. Buildings will require less...
article 2009
document
Lubelli, B. (author), van Hees, R.P.J. (author), Groot, C.J.W.P. (author), TNO Bouw en Ondergrond (author)
In recent years several types of restoration plasters, especially developed for salt loaded substrates, have been introduced on the market. The behaviour of these plasters in the field is, however, not always satisfactory. The reasons for failures may be found both in the moisture and salt transport behaviour of the substrate/plaster combination...
article 2006
document
Peelen, W.H.A. (author), Polder, R.B. (author), TNO Bouw (author)
Assessment of the durability of prestressed concrete sheet piles under the interference of CP gas pipeline system current, established that due to their low magnitude, these currents do not compromise the required 100-year service life of the structures. The sophisticated numerical modelling tools being developed, are important in assessing...
article 2004
document
Siemes, A.J.M. (author), TNO Bouw (author)
After the introduction of reinforced concrete it was believed that the material was extremely durable. Soon it was found that reinforced concrete could have serious durability problems and that special care should be taken to avoid them. Durability became a design issue.
conference paper 2002
document
Siemes, A.J.M. (author), TNO Bouw (author)
In the past years much efforts have been spent on a new design approach for the durability of existing and new concrete structures. The results of these efforts can be seen in recent work of several international scientific committees of Rilem, CEB, CIB and FIER These have finally resulted in the Brite/Euram project DuraCrete where a design...
conference paper 2001
document
Vrouwenvelder, A.C.W.M. (author)
Partial Factor Design is nowadays a generally accepted design method for building and civil engineering structures. For most engineers the general philosophy that the safety factors depend on the type of the load and on the limit state under consideration makes sense. However, the background, in particular the reliability aspect, seems to be...
conference paper 2001
document
Siemes, A.J.M. (author), Edvardsen, C. (author), TNO Bouw (author)
In the past decades much effort has been put into the improvement of the durability of concrete structures. This has resulted in a reasonable understanding of the main degradation processes or in experience with measures to prevent degradation. The results of this effort can be found in the present concrete codes and in manuals on durability...
conference paper 1999
document
de Vries, J. (author), Polder, R.B. (author), Borsje, H. (author), TNO Bouw (author)
The subject of this study was the performance of hydrophobic treatment to protect concrete against chloride penetration from de-icing salts. Hydrophobic treatment makes a concrete surface absorb less water and less chloride. Several types of tests were carried out to study the performance of hydrophobised concrete. Salt ponding/drying tests...
conference paper 1998
document
Siemes, T. (author), Polder, R. (author), de Vries, H. (author), TNO Bouw (author)
To design concrete structures for durability, all relevant performances that the structure has to fulfill and that can be influenced by degradations have to be defined. The probability that a given performance must be delivered within a design service life should also be considered. One of the consequences of the required reliability in the...
article 1998
document
van Straalen, IJ.J. (author), Wardenier, J. (author), Vogelesang, L.B. (author), Soetens, F. (author), TNO Bouw (author)
This paper introduces methods to draw up design rules to calculate the resistance of adhesive bonded joints for structural
article 1998
document
Polder, R.B. (author), TNO Bouw (author)
Chloride penetration from sea water may cause corrosion of reinforcement in concrete structures. Adding reactive inorganic materials such as blast furnace slag, fly ash or silica fume to the cement matrix improves the resistance against chloride penetration as compared to Portland cement concrete. A relatively simple laboratory procedure was...
article 1996
document
de Vries, J. (author), Polder, R.B. (author), Borsje, H. (author)
Hydrophobic treatment makes a concrete surface absorb less water and less chloride. Hydrophobic treatment was studied as a protection agninst chloride penetration from deicing salts. Test methods were designed. Nine hydrophobic products were tested, of which three complied to the requirements on finished concrete surfaces. The water absorption...
conference paper 1996
Searched for: subject:"Architecture%5C%2Band%5C%2BBuilding"
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