Flatwise and edgewise compression strengths of sandwich panel with silica aerogel mat

Tay, Lee Thin and Lee, Yee Yong and Kueh, Ahmad Beng Hong and Lee, Yeong Huei (2021) Flatwise and edgewise compression strengths of sandwich panel with silica aerogel mat. In: The 13th International UNIMAS Engineering Conference 2020 (ENCON 2020) 27th - 28th Oct 2020, Kuching, Malaysia, 27-28 October 2020, Faculty of Engineering UNIMAS.

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Abstract

Facade of building are mainly made up from red clay brick and concrete block. However, both materials are having high thermal mass and promote high indoor thermal discomfort level. Therefore, it is necessary to invent new building material that have low thermal mass and able achieve strength required. Silica aerogel possesses properties of lightweight and low thermal conductivity as compared to other construction materials. In this study, sandwich panel with silica aerogel mat was studied where the properties of sandwich panel silica aerogel mat are rarely found in previous investigations. Before checking its reliability as thermal insulation panel, the mechanical properties of this panel was investigate. The panel was made-up by concrete wythes with type N mortar and the silica aerogel mats with different thickness. Both concrete wythes were casted and then attached together with silica aerogel mat as the cover. 3 types of panel with different insulation thickness were then tested for flatwise and edgewise compression test. From the results, it was found that core thickness of silica aerogel mat has less influence in flatwise and edgewise compression strengths of the sandwich panel. All specimens achieved minimum strength of type N mortar. Therefore, it is recommended to be used in construction that has equivalent application of type N mortar

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