Searched for: subject:"Service%5C+life"
(1 - 19 of 19)
document
Polder, R.B. (author), van Put, M. (author), Peelen, W.H.A. (author)
Testing for the chloride threshold (also called critical chloride content) for corrosion initiation of steel in concrete has been found difficult and, at best, time consuming. Nevertheless, the chloride threshold is an important parameter in service life design of new structures and for evaluation of the remaining service life of existing...
conference paper 2017
document
Polder, R.B. (author), Boutz, M.M.R. (author), Ottelé, M. (author)
Asset managers would benefit from knowing when to expect corrosion initiation in a particular reinforced concrete structure. However, accepted approaches to test existing structures for the remaining time to corrosion initiation are lacking. This paper proposes such an approach, based on experience in the field and additional considerations....
conference paper 2017
document
van Breugel, K. (author), Polder, R.B. (author), de Rooij, M.R. (author)
For many concrete infrastructural works a service life of 80, 100 or 200 years is required. To convince owners and authorities that these requirements can be met probability-based models for service life predictions have been developed. These models are based on theoretical and experimental laboratory studies. Many of these models focus on the...
conference paper 2017
document
Abspoel, L.M. (author), Wessels, J.F.M. (author), Turk, M. (author), Bailey, H. (author), Hannah, A. (author), O'Connor, A. (author), Leahy, C. (author)
Quality control during the construction process is one of the determining factors that governs the service life of an asphalt road. In CONSISTEND a predictive tool is developed that objectively determines the effect of quality control during the construction processes on the life span of surface courses of asphalt roads. The tool predicts the...
conference paper 2017
document
Polder, R.B. (author), de Rooij, M.R. (author), Larsen, C.K. (author), Pedersen, B. (author)
Blast furnace slag cement (BFSC) has been used in reinforced concrete structures in marine and road environment in The Netherlands for nearly a century. Experience is good and long service lives can be obtained. In Norway experience with BFSC is scarce. In The Netherlands, a high resistance against chloride penetration and a high electrical...
conference paper 2016
document
Polder, R.B. (author), Nijland, T.G. (author), de Rooij, M.R. (author), Larsen, C.K. (author), Pedersen, B. (author)
road environment in The Netherlands for nearly a century. The experience is good and structures with long service lives can be obtained, as has been shown by several field studies. This is caused by a high resistance against chloride penetration and a high electrical resistivity, demonstrated both in the field and in the laboratory. Due to the...
conference paper 2014
document
Peelen, W.H.A. (author), Neeft, E.A.C. (author), Leegwater, G. (author), van Kanten-Roos, W. (author), Courage, W.M.G. (author)
Steel is discarded by railway owners as a material for underground structures near railway lines, due to uncertainty over increased corrosion by DC stray currents stemming from the traction power system. This paper presents a large scale field test in which stray currents interference of a sheet pile wall was monitored in realistic conditions....
conference paper 2012
document
Li, Y. (author), Vrouwenvelder, A.C.W.M. (author), TNO Bouw en Ondergrond (author)
Due to various mechanical, physical and chemical processes, concrete structures are subject to deterioration such as rebar corrosion, cracking and spalling. As most parameters in those processes are random, probability-based reliability analysis is often applied. However, in most studies, spatial variability is not taken into account, although...
article 2007
document
de Rooij, M.R. (author), Polder, R.B. (author), van Oosten, H.H. (author), TNO Bouw en Ondergrond (author)
Nowadays important concrete infrastructure is increasingly being designed for long service life by probabilistic assessment of uncertainties, e.g. using the DuraCrete method. Although on paper a reliable and durable structure will result, it is the execution phase that can make or break the service life. Hence, testing the concrete for its...
article 2007
document
Koenders, E.A.B. (author), de Rooij, M.R. (author), TNO Bouw en Ondergrond (author)
Material properties of building and construction elements are requested to last for an increasingly longer service life. For cementitious materials in particular, the "birth" of these properties emerge at the early stage of the hardening process. It is the development of the microstructure that determines the load bearing capacity as well as the...
article 2006
document
Polder, R.B. (author), de Rooij, M.R. (author), TNO Bouw en Ondergrond (author)
This article presents a series of investigations on six concrete structures along the North Sea coast in The Netherlands. They had ages between 18 and 41 years and most of them were made using Blast Furnace Slag cement. Visual inspections showed corrosion damage in only one structure, related to relatively low cover depths. All structures showed...
article 2005
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)
The service life of a building or structure is determined by the design and construction in combination with the ageing and the maintenance during use. To get grip on this combination it has advantage to present the functioning of the building or the structure on a performance level. As ageing will influence the performance, the combined effect...
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
van der Linden, N.H. (author), Nieuwenhout, F.D.J. (author), Jansen, J.C. (author), Lasschuit, P.E. (author), Lafleur, M.C.C. (author), Vervaart, M.R. (author), Dogger, J.D. (author), Energieonderzoek Centrum Nederland (author)
This report describes the activities and outcomes of the first six monthsof the three-year ENGINE project Life-Cycle Analysis and Optimisation of Solar Home Systems (project number: 74513). The whole project is divided into four main activities that cover different perspectives of the use of solar PV equipment by households: monitoring of solar...
report 2000
document
van Dril, A.W.N. (author), Kiesewetter, J. (author)
other 2000
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
Lounis, Z. (author), Lacasse, M.A. (author), Siemes, A.J.M. (author), Moser, K. (author), TNO Bouw (author)
Abstract
conference paper 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
Searched for: subject:"Service%5C+life"
(1 - 19 of 19)