Spectral light transmission measure and Radiance model\ud validation of an innovative transparent concrete panel for\ud façades

摘要

This paper presents an approach to measure, characterize and simulate photometric performances of light\udtransmission efficiency of an innovative transparent concrete panel for façades. The transparency was obtained by a\udtexture of PMMA resin insertions in the fiber reinforced concrete panel.\udIn the first part of the paper integrating sphere measurements were collected to derive spectral optical properties of\udthe panel. The optical properties of a specimen were measured for incidence angles between normal and 60° and the\udspectral results were reported.\udThe data collected during the measures were used to: create and validate a simplified Radiance model of the panel\udand to optimize simulation parameters to estimate properly the total internal reflections effects thought the PMMA\udresin insertions.