ESTUDO COMPARATIVO DE PAINEIS DE VEDAÇÃO CONFECIONADOS COM CIMENTO PORTLAND E MATERIAIS ALCALI-ATIVADOS
DOI:
https://doi.org/10.46421/entac.v17i1.1404Keywords:
Alkali-activated materials, Metakaolin, Thermal performanceAbstract
Alkali-activated materials (AAM) compared to Portland cement (PC) may significantly reduce the carbon dioxide emissions, as well as the consumption of non-renewable natural resources in civil engineering applications. This paper compares the performance of PC with AAM as binders in cementitious wall panels for cladding system in a hot and humid climate. In this case study natural aggregates used as mortars was replaced with tailing from iron-ore mining activities in the state of Minas Gerais, Brazil. The thermal property determined for the three mortars was Thermal Conductivity using a heat flow meter apparatus according to ISO 8301 (1999). After that, one-story house building simulation was carried out using the Energy Plus Software. The main room annual operative temperature provided by different wall panels was compared to the adaptive comfort range established on ASHRAE Standard 55/2013 for Belo Horizonte city, Brazil. Results show that building simulations can effectively contribute to validate a sustainable wall panels that provide suitable human thermal conditions in hot and humid climate.
References
ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS (ABNT). NBR 15.575: EdificaçõesHabitacionais - Desempenho. Rio de Janeiro, 2013.
AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR-CONDITIONINGENGINEERS (ASHRAE). ANSI/ASHRAE Standard 55-2013. Thermal environmentalconditions for human occupancy. ASHRAE, Atlanta, 2013.
AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM). ASTM C351 - 92b. StandardTest Method for Mean Specific Heat of Thermal Insulation. ASTM: WestConshohocken, 1999.
BEZERRA, L. A. C. Análise do desempenho térmico de sistema construtivo deconcreto com EPS como agregado graúdo. Dissertação (Mestrado). UniversidadeFederal do Rio Grande do Norte, Natal, 2003.
COLANGELO, F.; DE LUCA, G.; FERONE, C.; MAURO, A. Experimental and NumericalAnalysis of Thermal and Hygrometric Characteristics of Building Structures EmployingRecycled Plastic Aggregates and Geopolymer Concrete. Energies, 6, 2013.
DUSON, P; PROVIS, J. L.; LUKEY, G. C.; van DEVENTER, J. S. J. The role of inorganicCem. Concr. Res. 37,p. 1590 1597, 2007.
INSTITUTO BRASILEIRO DE MINERAÇÃO (IBRAM). Gestão e Manejo de Rejeitos daMineração. IBRAM: Brasília, 2016.
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO). ISO 10456-2007.
Building materials and products - Hygrothermal properties - Tabulated design valuesand procedures for determining declared and design thermal values. ISO,Switzerland, 2005.
______. ISO 8301-1999. Thermal insulation Determination of steady-state thermalresistance and related properties Heat flow meter apparatus. ISO, Switzerland,1999.
KASTIUKAS, G.; ZHOU, X.; CASTRO-GOMES, J. Towards Preparation Conditions For TheSynthesis Of Alkali- Mater.Civ. Eng, p. 1 35, 2017.
PALOMO, A.; Grutzeck, M.W.; Blanco, M.T. Alkali-activated fly ashes: A cement forthe future. Cem. Concr. Res. p.1323 1329, 1999.
PREFEITURA DE BELO HORIZONTE (PBH). Manual Técnico Aplicado as Edificações.
Secretaria municipal de serviços urbanos: Belo Horizonte, 2012.
PROVIS, John L.; van DEVENTER, Jannie S.J.V. Geopolymers. Structures, Processing,Properties and Industrial Applications, WP 2009.
SAGOI, J. M.; RAMOS, G.; LAMBERTS, R. Análise das medições de absortância atravésdo Espectrômetro alta II. In: XIII Encontro Nacional de Tecnologia do AmbienteConstruído (ENTAC), 2010, Canela. Anais... Canela: Associação Nacional deTecnologia do Ambiente Construído, Porto Alegre, 2010. P. 1-9.
