کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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258289 | 503615 | 2013 | 5 صفحه PDF | دانلود رایگان |
This research identified the possibility of application as an insulation building material by mixing aerogels with the cement paste as well as their thermal performance. The aerogel is a very stable material against water because of their skeleton’s characteristics, so that re-treatment of aerogel had to be preceded before mixing with cement pastes. Chemical and physical stability caused by the re-treatment of aerogel in the cured cement were confirmed by Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscope (SEM). Moreover, thermal conductivity of aerogel cement was 0.135 W/m K which is 75% of aerogel-free cement’s thermal conductivity, 0.533 W/m K.
► Possibility of new type of cement composite using aerogel was studied.
► Gel-typed aerogel was prepared by methanol to mix with cement stably.
► No chemical changes of aerogel cement were confirmed by FT-IR and SEM.
► Thermal conductivity of aerogel cement decreases by 75% comparing to ordinary one.
Journal: Construction and Building Materials - Volume 40, March 2013, Pages 501–505