Application of Translucent Concrete for Lighting Purposes in Civil Infrastructures and its Optical Characterization

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The discovery of translucent concrete some years ago, opened a new horizon in Civil Engineering. Many researchers have looked for applications in matter of structural mechanics in order to replace classical concrete by this new and challenging material. However, the scientific and technical communities working in Civil Engineering seem to be still far away from clear ideas and strategies to take profit of one of the main properties of this material: its possibility to transmit light. The reason is complex: on one hand, most of the researchers are mainly interested in the mechanical properties and other researchers, more interested on lighting, maybe find it as a decorative element, but not as a functional one from the point of view of lighting. In this work, two lines concerning its optical characterization (which must be always the first step) and some applications to road tunnels are presented. We will see that more active and multidisciplinary research is still needed before fully understanding and accurately use this material for lighting purposes.

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148-156

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September 2015

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© 2016 Trans Tech Publications Ltd. All Rights Reserved

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[1] Adrian, W., 1982. Investigations on the required luminance in tunnel entrances, Lighting Res. Technol. 14, 151–159.

DOI: 10.1177/096032718201400304

Google Scholar

[2] Blaser, P., Dudli, H., 1993. Tunnel lighting: Method of calculating luminance of access zone L20. Lighting Res. Technol. 25, 25–30.

DOI: 10.1177/096032719302500104

Google Scholar

[3] Schreuder, D.A., 1971. Tunnel entrance lighting: a comparison of recommended practice. Lighting Res. Technol. 3, 274–278.

DOI: 10.1177/096032717100300404

Google Scholar

[4] Peña-García, A., López, J.C., Grindlay, A.L. 2015. Decrease of energy demands of lighting installations in road tunnels based in the forestation of portal surroundings with climbing plants. Tunn. Undergr. Space Technol., 46, 111-115.

DOI: 10.1016/j.tust.2014.11.010

Google Scholar

[5] Gil-Martín, L.M., Peña-García, A., Jiménez, A, Hernández-Montes, E., 2014. Study of Light-pipes for the use of sunlight in road tunnels: from a scale model to real tunnels. Tunn. Undergr. Space Technol., 41, 82-87.

DOI: 10.1016/j.tust.2013.11.007

Google Scholar

[6] Al-Marwaee, M., Carter, D., 2006a. A field study of tubular daylight guidance installations. Lighting Res. Technol. 38, 241-258.

DOI: 10.1191/1365782806lrt170oa

Google Scholar

[7] Al-Marwaee, M., Carter, D., 2006b. Tubular guidance systems for daylight: Achieved and predicted installation performances. Applied Energy. 83, 774-788.

DOI: 10.1016/j.apenergy.2005.08.001

Google Scholar

[8] Carter, D., 2002. The measured and predicted performances of passive solar light-guide systems. Lighting Res. Technol. 34, 39-52.

Google Scholar

[9] Commission Internationale de l'Éclairage, CIE, 2004. Guide for the lighting of road tunnels and underpasses, CIE Publ. 88, Vienna.

DOI: 10.25039/tr.088.2004

Google Scholar

[10] Gil-Martín, L.M., Peña-García, A., Hernández-Montes, E., Espín-Estrella, A., 2011. Tension structures: A way towards sustainable lighting in road tunnels. Tunn. Undergr. Space Technol., 26, 223-227.

DOI: 10.1016/j.tust.2010.09.003

Google Scholar

[11] Peña-García, A., Escribano, R., Gil-Martín, L.M., Espín-Estrella, A., 2012. Computational optimization of semi-transparent tension structures for the use of solar light in road tunnels. Tunn. Undergr. Space Technol., 32, 127-131.

DOI: 10.1016/j.tust.2012.06.004

Google Scholar

[12] Peña-García, A., Gil-Martín, L.M., 2013. Study of pergolas for energy savings in road tunnels. Comparison with tension structures. Tunn. Undergr. Space Technol., 35, 172-177.

DOI: 10.1016/j.tust.2013.01.008

Google Scholar

[13] Gil-Martín, L.M., Gómez-Guzmán, A., Peña-García, A., 2015. Use of diffusers materials to improve the homogeneity of sunlight under pergolas installed in road tunnels portals for energy savings. Tunn. Undergr. Space Technol., 48, 123-128.

DOI: 10.1016/j.tust.2015.03.001

Google Scholar

[14] Gómez-Guzmán, A., 2013. Use of pergolas with semi-transparent material for the use of sunlight in road tunnels. End of Degree Project.

Google Scholar

[15] Sally I. El-Henawy, Mohamed W. N. Mohamed, Islam A. Mashaly, Osama N. Mohamed, Ola Galal, Iman Taha, Khaled Nassar, and Amr M. E. Safwat, Illumination of dense urban areas by light redirecting panels, Opt. Express, 22, A895-A907 (2014).

DOI: 10.1364/oe.22.00a895

Google Scholar

[16] CIE 1999 Design methods for lighting of roads Publication CIE 132-1999 (Vienna: CIE).

DOI: 10.25039/tr.132.1999

Google Scholar