Searched for:
(1 - 20 of 260)

Pages

document
van Hees, S.G.M. (author), Bouwine, C. (author), Blonk, R.W.B. (author), Oomens, S. (author)
BACKGROUND: Work participation among employees with common mental disorders (CMDs) is an increasingly important, yet highly complex phenomenon. Given the call for preventing instead of reacting to negative work outcomes, there is a need to understand how employees with CMDs can continue working. OBJECTIVES: 1) to provide insights in applying a...
article 2021
document
Lubelli, B. (author), Nijland, T.G. (author), van Hees, R.P.J. (author)
article 2021
document
de Bouvrie, E. (author), Lubelli, B.A. (author), Nijland, T.G. (author), van Hees, R.P.J. (author)
In het kader van de programmatische samenwerking MonumentenKennis tussen TU Delft, TNO en de Rijksdienst voor het Cultureel Erfgoed is in-situ onderzoek verricht naar de zoutbestendigheid van pleistermortels met ingemengde kristallisatie-inhibitor. Door het herhaaldelijk oplossen en kristalliseren van zouten in de poriën van bouwmaterialen kan...
report 2019
document
Lubelli, B.A. (author), Nijland, T.G. (author), van Hees, R.P.J. (author)
Commercial, ready mix stone repair mortars have often been applied in conservation practice for the restoration of natura! stone, brick and terracotta, over the last decades with varying success in terms of durability of the repair mortar itself and compatibility with the substrate. In this research, four commercial stone repair mortars,...
conference paper 2019
document
Granneman, S.J. (author), Lubelli, B.A. (author), van Hees, R.P.J. (author)
Weathering of porous building materials caused by the crystallization of soluble salts is a ubiquitous problem in the built cultural heritage. Especially lime-based mortars are susceptible to salt decay, due to both their bimodal pore size distribution and low mechanical strength. The addition of crystallization modifiers to mortars during...
article 2019
document
Valek, J. (author), Hughes, J.J. (author), Pique, F. (author), Gulotta, D. (author), van Hees, R. (author), Papayiani, I. (author)
Surface repair mortars are used for the compensation, or repair, of lost portions of surface materials in historic masonry buildings. It is recommended that their design and application should be performed in a wider context of conservation values related decision making, to prioritise preservation of original fabric, authenticity of approach...
article 2019
document
Granneman, S.J.C. (author), Lubelli, B. (author), van Hees, R.P.J. (author)
Salt crystallization damage in porous building materials is a widespread phenomenon. Several solutions to prevent, or mitigate, salt damage in building materials, prolonging thereby their service-life have been proposed. One of the latest approaches is the use of crystallization modifiers, aiming at reducing the crystallization pressure and/or...
article 2019
document
Pandey, S. (author), Gautam, R. (author), Houweling, S. (author), van der Gon, H.D. (author), Sadavarte, P. (author), Borsdorff, T. (author), Hasekamp, O. (author), Landgraf, J. (author), Tol, P. (author), van Kempen, T. (author), Hoogeveen, R. (author), van Hees, R. (author), Hamburg, S.P. (author), Maasakkers, J.D. (author), Aben, I. (author)
Methane emissions due to accidents in the oil and natural gas sector are very challenging tomonitor, and hence are seldomconsidered in emission inventories and reporting. One of the main reasons is the lack of measurements during such events. Here we report the detection of large methane emissions from a gas well blowout in Ohio during February...
article 2019
document
Lubelli, B. (author), Cnudde, V. (author), Diaz-Goncalves, T. (author), Franzoni, E. (author), van Hees, R.P.J. (author), Ioannou, I. (author), Menendez, B. (author), Nunes, C. (author), Siedel, H. (author), Stefanidou, M. (author), Verges-Belmin, V. (author), Viles, H. (author)
The durability of building materials with respect to salt crystallization is commonly determined by accelerated weathering tests, carried out in the laboratory. An effective laboratory weathering test should assess the durability and, in the case of conservation of historic buildings, the compatibility of repair materials with those existing....
article 2018
document
van Hees, R. (author), Veiga, R. (author), Slížková, Z. (author)
201808 Due to an unfortunate turn of events, the article title was only partly given in the article next to the fact that the list of TC members had accidently been left out. Please find in this erratum the correct article title and the list of TC members. Both should be considered as part of the final version by the reader. © 2018, RILEM.
article 2018
document
van Hees, R.P.J. (author), Lubelli, B.A. (author), Hacuebord, A. (author)
The injection of chemical products, meant to penetrate in the capillaries of the materials composingan affected wall, is perhaps the most diffused method to deal with rising damp. The majority of thesechemical products are hydrophobic treatments; they can be either solvent-based or (increasingly) water-based. Traditionally, these products are...
article 2018
document
Lubelli, B.A. (author), van Hees, R.P.J. (author), Quist, W. (author), van Hunen, M. (author), Nijland, T.G. (author)
Een mortel kan worden gedefinieerd als een mengsel van één of meerdere bindmiddelen, toeslagstoffen en eventueel toegevoegde hulpstoffen, meestal aangemaakt met water. Mortel wordt gebruikt om te metselen, te voegen, te pleisteren of aan te vullen en wordt daarnaast soms ook gebruikt als constructief materiaal. Reparatiemortels zijn mortels die...
report 2018
document
Lubelli, B.A. (author), van Hees, R.P.J. (author), Nijland, T.G. (author)
Steenreparatiemortels zijn mortels die in de conserveringspraktijk worden gebruikt om ontbrekende delen van baksteen of natuursteen in metselwerk of beeldhouwwerk aan te vullen. In de Nederlandse conserveringspraktijk worden steenreparatiemortels regelmatig gebruikt met wisselende resultaten, zowel qua compatibiliteit met het bestaande als qua ...
conference paper 2018
document
Naldini, S. (author), Heinemann, H. (author), van Hees, R. (author)
This paper presents the qualitative research on the importance and function of Monumentenwacht in The Netherlands in relation to the preventive conservation of monuments. The focus was on Monumentenwacht North Brabant. The main part of the research was carried out within the JPI ‘CHANGES' project, based on the results obtained in a previous...
bookPart 2018
document
van Hees, R.P.J. (author), Veiga, R. (author), Slizkova, Z. (author)
The paper addresses the consolidation of
article 2017
document
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
document
van Hees, A.G.M. (author), Huijgen, W.J.J. (author), van Hal, J.W. (author), Smit, A.T. (author)
public lecture 2017
document
Nijland, T.G. (author), van Hees, R.P.J. (author)
Volcanic tuffstone from the Eifel region, Germany, is one of the most important kinds of natural stone used in the Netherlands. These tuffs have, albeit with several hiatuses, been used since Roman times. At several places, original Medieval stones are still present. That does not imply that the stone is completely resistant to weathering: ' The...
conference paper 2017
document
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
document
Borsoi, G. (author), Lubelli, B.A. (author), van Hees, R.P.J. (author), Silva, A.S. (author)
Surface consolidation is a common practice in the conservation of the built heritage. However, the effectiveness of consolidation of calcareous materials is often doubtful, due to the lack of effective and compatible consolidation products. Dispersions of calcium hydroxide nanoparticles in alcohol, the so-called nanolimes, can recover the...
article 2017
Searched for:
(1 - 20 of 260)

Pages