(1 - 20 of 26)

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document
Visser, J.H.M. (author)
public lecture 2018
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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
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
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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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Visser, J.H.M. (author), Couto, S. (author), Gupta, A. (author), Alvarez, I.L. (author), Ligero, V.C. (author), Mayor, T.S. (author), Vinai, R. (author), Pipilikaki, P. (author), Largo, A. (author), Attanasio, A. (author), Huang, M.C. (author), Soutsos, M. (author)
Producing concrete with secondary raw materials is an excellent way to contribute to a more
article 2015
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Couto, S. (author), Assembleia, A. (author), Visser, J.H.M. (author), Mayor, T.S. (author)
The performance of concrete products depends not only on the concrete compositions but also
article 2015
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Visser, J.H.M. (author)
On January 1st 2012, the European project SUS-CON has been started: “SUStainable, innovative and energy efficient CONcrete, based on the integration of all waste materials” (grant agreement no: 285463). The SUS-CON project aims at developing new technology routes to integrate waste materials in the production cycle of concrete. It should result...
report 2014
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Visser, J.H.M. (author)
Carbonation of concrete at ambient CO2 concentration is a slow process. This makes the testing of the resistance of concrete against carbonation often too slow to be applicable for service life assessments of new structures. Raising the CO2-concentration will accelerate the test but the validity of an increase CO2-level is debated. If not valid,...
article 2014
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Visser, J.H.M. (author)
In the design stage of a concrete structure, decisions have to be made on how to fulfil the required service life and consequently, what concrete composition to use. Concrete compositions can be chosen on account of known performances but this will limit the choice of compositions and materials to those that have already been in use. Other...
article 2012
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Valcke, S.L.A. (author), Polder, R.B. (author), Nijland, T.G. (author), Leegwater, G.A. (author), Visser, J.H.M. (author), Bigaj-van Vliet, A.J. (author)
Most high filler concrete studies are based on relatively high contents of powder (cement + filler) (>400 kg m-3). This paper aims to increase the total fly ash content relative to the clinker content, while simultaneously minimizing the total powder content in the concrete to values lower than 300 kg m-3. The motivation for decreasing the total...
article 2012
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Visser, J.H.M. (author), TNO Bouw en Ondergrond (author)
conference paper 2009
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Visser, J.H.M. (author), Nijland, T.G. (author), TNO Bouw en Ondergrond (author)
conference paper 2009
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Visser, J.H.M. (author), van Breugel, K. (author), TNO Bouw en Ondergrond (author)
article 2006
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Visser, J.H.M. (author), TNO Bouw en Ondergrond (author)
bookPart 2006
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Peelen, W.H.A. (author), Visser, J.H.M. (author), Polder, R.B. (author), TNO Bouw en Ondergrond (author)
In prefab segmenten van de Groene Harttunnel zijn sensoren ingebouwd voor het monitoren van aspecten van de levensduur. Corrosie-indicatie en elektrische weerstand worden gemeten. Ondersteund doorr laboratoriumproeven worden het vochtprofiel aan de binnen- en buitenkant van de tunnel daaruit afgeleid en het corrosiemechanisme (onder meer...
article 2006
document
Visser, H. (author), TNO Bouw (author)
public lecture 2003
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Polder, R.B. (author), Visser, J.H.M. (author), TNO Bouw (author)
Concrete specimens with various binders including Portland cement, fly ash, blast furnace slag and composite cement and three water-to-cement ratios were subjected to cyclic wetting with salt solution and drying. After salt loading for half a year, chloride profiles were determined. Subsequently, chloride loading was discontinued and specimens...
conference paper 2002
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Siemes, A.J.M. (author), Han, N. (author), Visser, J.H.M. (author), TNO Bouw (author)
During an extensive investigation of some 25 concrete bridges and other structures suffering from alkali-silica reaction it has been found that the uniaxial tensile strength of the concrete was extremely low in relation to both the compressive strength and the splitting tensile strength. It is known that concrete with damage due to ASR has...
article 2002
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Visser, J.H.M. (author), Gaal, G.C.M. (author), de Rooij, M.R. (author), TNO Bouw (author)
conference paper 2002
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Visser, G.T. (author), TNO Milieu, Energie en Procesinnovatie (author)
report 2001
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