Air content of mortars with eucalyptus chip ash and sludge waste generated in the furniture industry
DOI:
https://doi.org/10.46421/enarc.v9i1.6581Keywords:
Sustainable mortars, Eucalyptus wood chip ash, Sewage treatment plant sludge, Air content, Central Composite DesignAbstract
The production of Portland cement is responsible for high levels of CO2 emissions, posing a challenge for sustainability in construction. The literature lacks studies on the effects of incorporating eucalyptus wood chip ash and sewage treatment plant sludge on some properties of cementitious matrices. Then, we used a Central Composite Design (CCD) to investigate the effects of lime, aggregates, and industrial wood wastes (addition of 5–25% ash and/or 3–15% sludge, by mass of binders) on the air content of mortars. The air content results ranged from 8.46% to 24.88%, mainly influenced by the sand-to-binder and sludge-to-binder ratios. A regression model and response surface were developed. The use of these wastes can provide appropriate air content values for different applications, contributing to the development of more sustainable construction materials.
References
ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS. NBR 13278. Argamassa para assentamento e revestimento de paredes e tetos - Determinação da densidade de massa e do teor de ar incorporado. 2005.
ADAMU, M., TRABANPRUEK, P., JONGVIVATSAKUL, P., LIKITLERSUANG, S., & IWANAMI, M. Mechanical performance and optimization of high-volume fly ash concrete containing plastic wastes and graphene nanoplatelets using response surface methodology. Construction and Building Materials, 308, 125085. 2021.https://doi.org/10.1016/J.CONBUILDMAT.2021.125085
BOZORGMEHR NIA, S., & NEMATI CHARI, M. Applied development of sustainable-durable high-performance lightweight concrete: Toward low carbon footprint, durability, and energy saving. Results in Materials, 20, 100482. 2023. https://doi.org/10.1016/J.RINMA.2023.100482
CARRAJOLA, R., HAWREEN, A., FLORES-COLEN, I., & DE BRITO, J. Fresh properties of cement-based thermal renders with fly ash, air lime and lightweight aggregates. Journal of Building Engineering, 34, 101868. 2021.https://doi.org/10.1016/j.jobe.2020.101868
CHATTERJI, S. Freezing of air-entrained cement-based materials and specific actions of air-entraining agents. Cement and Concrete Composites, 25(7), 759–765. 2003. https://doi.org/10.1016/S0958-9465(02)00099-9
FERDOSIAN, I., & CAMÕES, A. Eco-efficient ultra-high performance concrete development by means of response surface methodology. Cement and Concrete Composites, 84, 146–156. 2017. https://doi.org/10.1016/J.CEMCONCOMP.2017.08.019
GOMES, R., TIBIRIÇÁ, A., NALON, G., & CARVALHO, J. M. Use of residues from the furniture industry as a construction material: an inventory and proposal for the furniture hub of Ubá, MG, Brazil. 2023. https://doi.org/10.55449/conresol.6.23.V-005
JAMORA, J. B., GO, A. W., GUDIA, S. E. L., GIDUQUIO, M. B., & LORETERO, M. E. Evaluating the use of rice residue ash in cement-based industries in the Philippines – Greenhouse gas reduction, transportation, and cost assessment. Journal of Cleaner Production, 398, 136623. 2023.https://doi.org/10.1016/J.JCLEPRO.2023.136623
MEHTA, P., & MONTEIRO, P. Microstructure, Properties and Materials (New York: McGraw-Hill (ed.); P. Concrete). 2006.
PCZIECZEK, A., SCHACKOW, A., EFFTING, C., GOMES, I. R., & DIAS, T. F. Properties of mortars containing tire rubber waste and expanded polystyrene (EPS). Journal of Urban and Environmental Engineering, 219–225. 2018. https://doi.org/10.4090/juee.2017.v11n2.219225
PEDROSO, M., FLORES-COLEN, I., SILVESTRE, J. D., GOMES, M. G., SILVA, L., & ILHARCO, L. Physical, mechanical, and microstructural characterisation of an innovative thermal insulating render incorporating silica aerogel. Energy and Buildings, 211, 109793. 2020.https://doi.org/10.1016/j.enbuild.2020.109793
ROMANO, R. C. D. O., TORRES, D. D. R., & PILEGGI, R. G. Impact of aggregate grading and air-entrainment on the properties of fresh and hardened mortars. Construction and Building Materials, 82, 219–226. 2015. https://doi.org/10.1016/J.CONBUILDMAT.2015.02.067
TEÓFILO, R. F., & FERREIRA, M. M. C. Quimiometria II: planilhas eletrônicas para cálculos de planejamentos experimentais, um tutorial. Química Nova, 29(2), 338–350. 2006. https://doi.org/10.1590/S0100-40422006000200026
