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Keywords = Acrocomia aculeata (Jacq.) Lodd fruit

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11 pages, 2893 KiB  
Article
Portland Cement/Acrocomia Aculeata Endocarp Bricks: Thermal Insulation and Mechanical Properties
by Camila C. Calvani, Além-Mar B. Goncalves, Michael J. Silva, Samuel L. Oliveira, Bruno S. Marangoni, Diogo D. dos Reis and Cicero Cena
Materials 2020, 13(9), 2081; https://doi.org/10.3390/ma13092081 - 1 May 2020
Cited by 12 | Viewed by 2810
Abstract
In the last few decades, Portland/residue composites have been researched due to their technological and environmental advantages. In this study, residues of Acrocomia aculeata (Jacq.) Lodd endocarp (AE) were introduced in the Portland cement–soil (PC) matrix in different concentrations (0, 5, 10, 15, [...] Read more.
In the last few decades, Portland/residue composites have been researched due to their technological and environmental advantages. In this study, residues of Acrocomia aculeata (Jacq.) Lodd endocarp (AE) were introduced in the Portland cement–soil (PC) matrix in different concentrations (0, 5, 10, 15, 20, and 50 wt%) to produce PC/AE bricks. The characterization of the microstructures of the bricks indicate agglomerates of AE particles with increased humidity in small regions distributed throughout the matrix. Mid-infrared and laser-induced breakdown spectroscopy, along with thermogravimetry, indicated that AE contained mainly lignin and cellulose, as well as inorganic chemical elements such as Mg and Si. X-ray studies revealed that AE did not affect the crystallographic properties of the Portland/AE bricks. The findings indicate that the use of AE improved the thermal insulation capability of the composites with a small impact on the compressive strength. Full article
(This article belongs to the Section Advanced Composites)
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