Material intensity and embodied CO2 benchamark for reinforced concrete strucutres in Brazil

Abstract: Cement and steel production significantly contribute to global CO2 emissions, with reinforced concrete structures accounting for a substantial portion. Therefore, optimizing the structural design helps reduce material and carbon intensity. However, industry-based benchmarks for material and carbon intensity of structures are scarce and lack transparency. This study fills this Leia mais…

Environmental and economic trade-offs of different reclaimed asphalt pavement recycling strategies for the city of São Paulo, Brazil

Referência: MASCARENHAS, Zila; SILVA, Fernanda Belizário; VASCONCELO, Kamila. Environmental and economic trade-offs of different reclaimed asphalt pavement recycling strategies for the city of São Paulo, Brazil. In: TRANSPORTATION RESEARCH BOARD ANNUAL MEETING 103, 2024, Washington. Pôster.. 1 slides. Acesso aos slides da apresentação da Palestra em PDF: https://escriba.ipt.br/pdf/178803.pdf

Actual sources of life cycle impacts: elementar process and flows causing environmental impacts for a typical Brazilian building

Abstract: Life Cycle Assessment (LCA) is a valuable tool to enhance the environmental performance of buildings. However, the increasing number of impact categories required by construction LCA standards makes it difficult to collect primary data and understand LCA results. Furthermore, most LCA studies only analyse aggregated impact results, failing to Leia mais…

Efeito da variação das características higrotémicas do concreto no comportamento higrotérmico de uma parede

Resumo: Simulações computacionais higrotérmicas consideram trocas transientes e simultâneas de calor e umidade entre os elementos construtivos e o ambiente, sendo uma ferramenta importante de apoio ao projeto e à avaliação de desempenho de edifícios. Essas simulações requerem como dados de entrada a descrição do elemento construtivo, as condições ambientais Leia mais…

Estudo da influência dos aditivos redutores de água de bases químicas distintas no comportamento de pastas de cimento Portland no estado fresco

Resumo: O tempo de início de pega e a perda de abatimento das pastas de cimento Portland sofrem influência do tipo de aditivo redutor de água utilizado na mistura. Neste trabalho, foi verificada a influência dos aditivos químicos redutores de água dos tipos 1 e 2, quanto à cinética de Leia mais…

Thermoactivated cement from construction and demolition waste for pavement base stabilization: a case study in Brazil

Abstract: Construction and demolition waste (CDW) worldwide generation accounts 10billion tonnes yearly. The major fraction is landfilled requiring innovative recycling methods to reduce the associated environmental impacts and to increase its circularity. Our study demonstrated the feasibility of using different CDW fines to develop recycled cements and optimized the content Leia mais…

High activity pozzolan obtained from selection of excavation soils in a construction and demolition waste landfil

Abstract: Excavations soils from construction sites, when included as Construction and Demolition Waste (CDW) can double waste amount and represent up to 80 % of waste composition. Limited recycling strategies are available for the material. In this work, soils with higher kaolinite contents were selected by X-ray diffraction (XRD) to Leia mais…

Efeito da variação das características higrotémicas do concreto no comportamento higrotérmico de uma parede

Resumo: Simulações computacionais higrotérmicas consideram trocas transientes e simultâneas de calor e umidade entre os elementos construtivos e o ambiente, sendo uma ferramenta importante de apoio ao projeto e à avaliação de desempenho de edifícios. Essas simulações requerem como dados de entrada a descrição do elemento construtivo, as condições ambientais Leia mais…

Thermal comfort and indoor air quality in hospitals in the subtropics: analysis of operating rooms and waiting rooms conditions

Abstract: The indoor air quality should provide adequate temperature and humidity levels, free from harmful pollution concentration. Proper heating, ventilation and air-conditioning (HVAC) system management is crucial in hospitals to prevent transmission of contaminated air and diseases. To verify whether healthcare facilities meet standard criteria for thermal comfort and indoor Leia mais…

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