التفاصيل البيبلوغرافية
| العنوان: |
Applicability of few layer graphene derived from annoni grass biomass on the mechanical properties of cement mortars. |
| المؤلفون: |
Hohemberger, Luana F.1 (AUTHOR), Azzi, Patricia C.2 (AUTHOR), Zapata, Max J.M.2 (AUTHOR), Campanelli, Dionathan A.1 (AUTHOR), Menezes, Jacson W.1 (AUTHOR), Zegarra, Lizandro B.R.3 (AUTHOR), Jacinto, C.4 (AUTHOR), Armas, Luis E.G.1 (AUTHOR) luisarmas@unipampa.edu.br |
| المصدر: |
Diamond & Related Materials. Nov2024, Vol. 149, pN.PAG-N.PAG. 1p. |
| مصطلحات موضوعية: |
*POTASSIUM hydroxide, *COMPRESSIVE strength, *AGRICULTURAL pests, *CHEMICAL reagents, *GRAPHENE, *MORTAR |
| مستخلص: |
In this work, we report the potential applicability of few layer graphene (FLG) synthesized from annoni grass (AG) biomass (Eragrostis plana Nees) by investigating its impact on the flexural and compression strength of cement mortars. For this purpose the AG biomass was collected and burnt at the temperature of 400 °C per 60 min, obtaining the AG ash (AGA). For FLG production, the AGA was mixture with the chemical reagent potassium hydroxide (KOH) and burnt at the temperature and time of 850 °C and 60 min, respectively. For the mechanical properties analysis, a reference sample (A0-without FLG) and samples with different percentage of FLG were prepared, specifically 0.02 % (A1), 0.03 % (A2), 0.05 % (A3), 0.07 % (A4) and 0.1 % (A5). Statistical analysis (Analysis of Variance, ANOVA) of the mechanical properties demonstrates a maximum flexural and compression strength in sample A2. The flexural and compression strength increase 25.2 % and 10.1 % compared to the reference mortar. These results indicate that the FLG produced from AG not only improves the mechanical properties of mortars but also presents significant environmental benefits, because AG is considered an invasive pest of agricultural fields of the southern region of Brazil. Therefore, with its removal from the fields it would be contributing to environmental preservation. [Display omitted] • Synthesis and characterization of annoni grass ash (AGA) at 400 °C/ 60 min • Production o annoni grass ash-derived graphene at 850 °C/60 min • Preparation of cement mortar samples with different graphene content • Impact of annoni grass ash-derived graphene on the mechanical properties of cement mortars • Improvement of the mechanical properties (flexural and compressive strength), when compared to the reference sample. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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