Evaluation of mechanical and durability properties of cement matrices made with cement with addition of blast furnace slag
DOI:
https://doi.org/10.46421/enarc.v9i1.6626Keywords:
Blast furnace slag, DurabilityAbstract
The use of supplementary cementitious materials is an alternative to mitigate the negative effects of Portland cement production, which is responsible for generating high levels of carbon dioxide. One of the alternatives is blast furnace slag, which comes from the production of pig iron. In Brazil, the use of this material is regulated, and the cements “CPII E” and “CPIII RS” have percentages of this addition as replacements for clinker. This study evaluated the mechanical and durability behavior of matrices with cements “CPII E”, “CPIII RS” and “CPV”, using tests of resistance to axial variation, water analysis by capillarity, electrical resistivity and migration of tense ions. Note that the use of CPII E and CPIII RS resulted in better durability parameters, while there was a loss of strength. In this context, it is necessary to use this material to promote concretes that are more resistant to the action of aggressive agents such as water and chloride ions.
References
AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS. AASHTO T 358- 15. Standard method of test for Surface Resistivity Indication of Concrete’s Ability to Resist Chloride Ion Penetration. Washington, 10p., 2015.
____ ASTM C 1202–22. Standard test method for electrical indication of concrete’s ability to resist chloride ion penetration. American Society for Testing and Material, Philadelphia 2022.
____ ASTM C 1556–03. Standard test method for determining the apparent chloride diffusion coefficient of cementitious mixtures by bulk diffusion, 2003.
____ ASTM C1876-19. Standard test method for bulk electrical resistivity or bulk conductivity of concrete, 2019.
ANDRADE, C. Calculation of chloride diffusion in concrete from ionic migration measurements. Cement and Concrete Research, v. 23, n.3, p.724-742, 1993.
ASOCIACIÓN ESPAÑOLA DE NORMALIZACIÓN Y CERTIFICACIÓN. UNE 83988-2. Durabilidad del hormigón. Métodos de ensayo: determinación de la resistividad eléctrica: parte 2: método de las cuatro puntas o de Wenner. Genova, 2014a.
ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS (ABNT). NBR 16697. Cimento Portland – Requisitos. Rio de Janeiro, 2018.
____ NBR 5739. Ensaio de compressão de corpos de-prova cilíndricos ou prismáticos de concreto – Procedimento. Rio de Janeiro, 2014.
____ 5738. Concreto - Procedimento para moldagem e cura de corpos de prova. Rio de Janeiro, 2019.
____ NBR 15575. Desempenho de Edifícios Habitacionais. Rio de Janeiro, 2013.
____ NBR 6118. Projeto de estruturas de concreto – Procedimento. Rio de janeiro, 2014.
AUDENAERT K., YUAN Q., SCHUTTER G.D. On the time dependency of the chloride migration coefficient in concrete. Construction and Building Materials, v. 24, p. 396–402, 2010.
AZEVEDO, A. F. F. L. C. Betões de elevado desempenho com incorporação de cinzas volantes. Tese de Doutorado – Escola de Engenharia, Universidade do Minho, 2002.
BALESTRA, C. E. T; NAKANO, A. Y. SAVARIS, G. MEDEIROS, R. A. Reinforcement corrosion risk of marine concrete structures evaluated through electrical resistivity: Proposal of parameters based on field structures. Ocean Engineering, v. 187, 2019.
BROWNE, R.D. Field investigations: site e laboratoty tests: maintenance repair and rehabilitation of concrete structures. CEEC, Lisboa, 1991.
ESCOLA POLITÉCNICA DA USP. Cimento – Produção mundial pode dobrar sem aumentar CO2. Disponível em: Cimento – Produção mundial pode dobrar sem aumentar CO2 – ESCOLA POLITÉCNICA. Acesso em 20/01/2025.
GJØRV O. E. Durability Design of Concrete Structures in Severe Environments. FL, USA, 2017.
HAUSMANN, D. A. Steel corrosion in Concrete: how does it occur. Materials Protection, v.6, n.11, p.19-23, 1967.
INSTITUTO BRASILEIRO DE MINERAÇÃO. DADOS IBRAM – SETOR MINERAL – 3° trimestre de 2024. Disponível em: Publicações - IBRAM. Acesso em: 20/01/2025.
LOPES, F. L. C. Desenvolvimento de protótipo de aplicação mobile para estimativa in situ da vida útil de componentes em concreto armado face corrosão induzida por cloretos, via ensaios não destrutivos. 104. Monografia (Bacharelado em Engenharia Civil) – Instituto Federal de Educação, Ciência e Tecnologia de Sergipe – Campus Aracaju. 2022.
LANGFORD, P., BROOMFIELD, J. Monitoring the Corrosion of Reinforcing Steel. Construction Repair, p. 32-36, 1987.
LOPES, F., SANTOS, D. O potencial poluidor da indústria cimenteira. 15° Congresso Nacional do Meio Ambiente, Minas Gerais, 2018.
NORDTEST. NT BUILD 492. Concrete, Mortar and Cement Based Repair Materials, Chloride Migration Coefficient from Non-Steady State Migration Experiments. Esbo, Finland, 1999.
NORDTEST. NT BUILD 443. Concrete, hardened: Accelerated chloride penetration. Approved 1995–11.
PIMENTEL, M. et al. Caracterização da escória de alto forno proveniente de resíduos industriais visando seu uso na construção civil. Congresso Técnico Científico da Engenharia e da Agronomia, Belém, PA.
ROSA, L. S. Materiais cimentícios suplementares: Histórico e novas tendências. Revista Científica Multidisciplinar Núcleo do Conhecimento, v. 07, p.121-127. Abril de 2020. ISSN: 2448-0959
