Searched for: subject:"2015%5C%2BUrbanisation"
(1 - 20 of 95)

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Visser, J.H.M. (author)
The current theory of ASR gel formation in concrete between silicic acid anions with cations and is unable to explain the differences in concentration required for gel formation between e.g. potassium and sodium or the effect of calcium on the gel formation. In this paper, a new gelation mechanism is explained by means of a condensation between...
article 2018
document
Jacobs, P. (author)
Frisse lucht zorgt voor een goede en diepere slaap. Dus bieden veel kinderdagverblijven de mogelijkheid om kleintjes buiten te laten slapen. Kan dat onder alle weersomstandigheden? En waar let je op als het bijvoorbeeld pijpenstelen regent of vriest dat het kraakt?
article 2018
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Jacobs, P. (author)
Onze buitenlucht is schoner dan de lucht in woningen. Deze treurige constatering werd onlangs gedaan tijdens de 'Dag van de Binnenlucht', die werd georganiseerd door onder andere de VLA en Isso. Klopt het wel? We belden TNO-onderzoeker Piet Jacobs op om hem hierover aan de tand te voelen.
article 2018
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Borsje, H. (author), Swinkels, M. (author), Berg, N. (author)
De Afsluitdijk is op dit moment ruim tachtig jaar oud en heeft ons al die jaren goed tegen de krachten en invloeden van het zeewater beschermd (foto 1 en 2). Rijkswaterstaat gaat de Afsluitdijk nu een grote opknapbeurt geven, zodat hij tot ten minste 2050 mee kan. De dijk wordt zodanig versterkt dat hij bestand is tegen het stijgende zeewater....
article 2018
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Gómez, S.S. (author), Metrikine, A. (author), Carboni, B. (author), Lacarbonara, W. (author)
In this paper, identification of energy dissipation in the joints of a lab-scale structure is accomplished. The identification is carried out by means of an energy flow analysis and experimental data. The devised procedure enables to formulate an energy balance in the vicinity of the joints to obtain local energy dissipation. In this paper, a...
article 2018
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Steenbergen, R.D.J.M. (author), Allaix, D.L. (author), la Gasse, L.C. (author), Vervuurt, A.H.J.M. (author)
Verschillende decentrale overheden in Nederland hebben in de afgelopen jaren aangegeven dat de huidige regelgeving aangaande de aan te houden verkeersbelasting voor de beoordeling van bestaande constructies leidt tot een veiligheidsniveau dat rekenkundig onvoldoende is. In opdracht van Gemeente Rotterdam is door TNO een onderzoek uitgevoerd...
report 2018
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Jacobs, P. (author), Borsboom, W.A. (author)
Recirculation hoods equipped with carbon and plasma filters are becoming more and more popular. The aim of this study is to determine the effectiveness of recirculation hoods with regard to PM2 5 and NOx removal in a 26 m3 lab kitchen with a gas furnace. With the carbon filter PM2 5 is reduced for about 30%. A fresh carbon filter removed about...
conference paper 2017
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Hashemi, B. (author), Maljaars, J. (author), Leonetti, D. (author), Snijder, H.H. (author)
Reliability analysis is a crucial phase in assessing the safety status of new and existing structures. One of its applications is to predict the fatigue life of fatigue prone details. Two models are used to formulate the fatigue limit state: S-N curves in combination with Palmgren-Miner damage accumulation rule and linear elastic fracture...
article 2017
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Nijland, T.G. (author)
public lecture 2017
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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
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van Hees, R.P.J. (author), Naldini, S. (author)
Age and ageing can be felt as negative occurrences. For monuments, however, old age is traditionally considered to be a positive quality. Without a certain age, the designation "monument" hardly applies. Ageing can be seen as the work of time, which has always been valued: ageing was sometimes even artificially induced in the past. In this paper...
bookPart 2017
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Souza, L.M.S. (author), Polder, R.B. (author), Copuroglu, O. (author)
The currently available treatment techniques for concrete structures affected by alkali-silica reaction (ASR) are limited and electrochemical lithium migration has been proposed as an alternative. Lithium compounds have shown to have beneficial effects on ASR expansion when used as admixtures to fresh concrete. During the electrochemical...
article 2017
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Attanasio, A. (author), Largo, A. (author), Vinai, R. (author), Soutsos, M. (author), Visser, J. (author), van Gijlswijk, R. (author), Panagiotopoulou, C. (author), Taxiarchou, M. (author), Sonzogni, F. (author), Preda, M. (author), Pugliese, M. (author)
Portland cement production is an energy-intensive process responsible for a significant share of the total CO2 production. Its replacement with low carbon binders from by-products of industrial processes is a sustainable alternative for innovative construction materials. In addition, the combination of low carbon binders with recycled aggregates...
conference paper 2017
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Mookhoek, S.D. (author), van Kanten-Roos, W. (author), Bijleveld, F. (author)
The Province of Zuid-Holland encourages the development of innovations to make the provincial road network more energy efficient. This is one way the province can contribute to reducing energy consumption and CO2 emissions in accordance with the Dutch energy agreement. To this end, the Province of Zuid-Holland, Strukton Civiel and TNO have...
other 2017
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Bronkhorst, A.J. (author), van Bentum, C.A. (author), Geurts, C.P.W. (author)
In recent years, the use of computational fluid dynamics (CFD) to evaluate flow fields has become more popular in various branches of industry. In building design, there is a similar trend towards the increasing use of CFD. There are several guidelines for CFD analysis of flows in the urban environment, e.g. [1-4]. For assessment of wind speed...
conference paper 2017
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Nijland, T.G. (author), van den Heuvel, J. (author)
Met de ontwikkeling van het Europese spoorwegnet komen nieuwe stenen de architec-tuur in, zowel bij nieuwbouw als restauratie. Bekend zijn de Franse kalkstenen en de Beierse granieten. Minder bekend zijn stenen uit bijvoorbeeld Saksen, zoals de Beucha, Li juner en Rochlitzer porfieren. Toch is de Beucha porfier aan gebouwen uit het Inter-bellum...
article 2017
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Borsboom, W.A. (author)
The AIVC Technical note 68 "Residential Ventilation and Health" summarises studies that prioritise pollutants in the indoor environment and presents a summary of pollutants driving the indoor health risks and their sources. It also describes methods to reduce exposures of contaminants using different control strategies with a special emphasis on...
article 2017
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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
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Granneman, S.J.C. (author), Shahidzadeh, N. (author), Lubelli, B.A. (author), van Hees, R.P.J. (author)
Borax has been identified as a possible crystallization modifier for sodium sulfate. Understanding the effect of borax on factors influencing transport and crystallization kinetics of sodium sulfate helps to clarify how this modifier might limit crystallization damage. It has been observed that the addition of borax to sodium sulfate solutions...
article 2017
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Leonetti, D. (author), Hashemi, B. (author), Allaix, D.L. (author), Maljaars, J. (author)
This paper investigates the differences in the predicted fatigue life of transverse butt weld joints and cover-plated beams considering statistically based fitting methods on fatigue test data and comparing the results with the S-N relation proposed in international standards. The test data fitting are performed by employing the Least Square...
conference paper 2017
Searched for: subject:"2015%5C%2BUrbanisation"
(1 - 20 of 95)

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