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TNO Bouw en Ondergrond (author), Shamalta, M. (author), Breunese, A.J. (author), Peelen, W.H.A. (author), Fellinger, J.H.H. (author)In this paper, the phenomenon of spalling of concrete in fire has been studied using a numerical model. Spalling is the violent or non-violent breaking off of layers or pieces of concrete when it is exposed to high temperatures as experienced in fires. The types and mechanisms of spalling have been explained. A numerical model has been developed...conference paper 2005
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van der Meulen, M.J. (author), Koopmans, T.P.F. (author), Pietersen, H.S. (author), Nederlands Instituut voor Toegepaste Geowetenschappen TNO (author)The present contribution is an inventory of the construction raw materials policy and supply practices in The Netherlands, Belgium, North Rhine-Westphalia, Lower Saxony, Great Britain, Norway and Denmark. The work has been commissioned by the Dutch government in order to benchmark its domestic provision and the governing mineral planning policy....article 2003
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de Jong, A.M. (author), Vink, P. (author), de Kroon, J.C.A. (author)In this paper the adoption of technological innovations to improve the work of bricklayers and bricklayers' assistants is evaluated. Two studies were performed among 323 subjects to determine the adoption of the working methods, the perceived workload, experiences with the working methods, and the reasons for adopting the working methods....article 2003
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Energieonderzoek Centrum Nederland (author), van der Sloot, H.A. (author), Cnubben, P.A.J.P. (author)-report 2000
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TNO Bouw (author), de Vries, P. (author), Gard, W.F. (author)Roundwood as a construction material is becoming more and more interesting to users. Using this wood in construction will increase the value of the material and may open new opportunities for construction design. In order to use roundwood for this application, suitable connectors and/or joints have to be developed, but before all, the strength...article 1998
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Radiologische Dienst TNO (author), de Jong, P. (author), van Dijk, W. (author)The retaining effect of over 20 different surface coatings on the free 222Rn exhalation rate has been studied. Coatings that are normally applied for decoration of walls and ceilings in homes were found to be ineffective. Reductions of up to 75% were found for other coatings studied, when applied to all sides of the test walls. If the surface...article 1994