Sustainable choices for the residential construction. The impact of sustainable cement

Author(s): Fernando Martirena, Yudiesky Cancio, Sofía Sánchez
Paper category: Proceedings
Book title: International Conference on Sustainable Materials, Systems and Structures (SMSS 2019) Energy Efficient Building Design and Legislation
Editor(s): Marina Bagarić, Ivana Banjad Pečur, Hartwig M. Künzel
ISBN: 978-2-35158-217-6
e-ISBN: 978-2-35158-218-3
Publisher: RILEM Publications SARL
Publication year: 2019
Pages: 166-171
Total Pages: 06
Language: English

Abstract: Most of new modern building in residential areas are made with concrete, either prefabricated or in situ. This increases the use of cement in concrete, thus increasing the energy inputs and carbon emissions of the entire building. This paper presents the results of the evaluation of the impact of using a ternary cement composed of Portland clinker (50%), calcined clay (30%), gypsum (5%) and limestone (15%), for ordinary concrete, and it compares with the same material produced with a pure Portland cement with clinker content above 90%. The analysis is made considering Life Cycle Assessment, Value Added method and eco- efficiency perspective for specific conditions of Cuba. The subject of the study is only the concrete part of the buildings, which are mainly residential buildings. The study confirms that the use of the new low clinker cement brings about a drastic reduction of carbon emissions during construction, along with higher value added. The contrast between the financial and environmental aspects is defined by the “eco-efficiency index”, which has been developed and validated as part of the program and applied to case study buildings in Cuba. Masonry walls made with concrete blocks and precast concrete walls were compared, and conclusions drawn from this study.

Online publication: 2019
Publication type : full_text
Public price (Euros): 0.00

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