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A study on the synthesis and performance evaluation of fly ash and alccofine as sustainable cementitious materials.
Padavala, Siva Shanmukha Anjaneya Babu; Noolu, Venkatesh; Paluri, Yeswanth; Bijivemula, Sudheer Kumar Reddy; Akula, Uday Kumar.
Afiliación
  • Padavala SSAB; Department of Civil Engineering, Gudlavalleru Engineering College, Gudlavalleru, Andhra Pradesh, India.
  • Noolu V; Department of Civil Engineering, Sreenidhi Institute of Science and Technology, Hyderabad, India.
  • Paluri Y; Department of Civil Engineering, Vishnu Institute of Technology, Bhimavaram, Andhra Pradesh, India.
  • Bijivemula SKR; School of Construction, NICMAR University, Pune, India.
  • Akula UK; Hydraulic Department Engineering, Institute of Technology, Jigjiga University, Jigjiga, Ethiopia. akula.uday@jju.edu.et.
Sci Rep ; 14(1): 19115, 2024 Aug 18.
Article en En | MEDLINE | ID: mdl-39155304
ABSTRACT
Construction and global infrastructure depend on cement production. It is one of the biggest carbon emitters, making it an aspect of environmental sustainability and climate change mitigation. Each stage of cement production releases CO2 and other greenhouse gasses. About 8% of worldwide CO2 emissions come from the cement sector, making it a major contributor. Different supplementary cementitious materials (SCMs) like fly ash (FA), silica fume (SF), and slag are used to partially replace traditional raw materials like limestone, reducing the environmental impact. This study investigated the use of supplementary cementitious materials, specifically FA and alccofine (AF), as partial replacements for cement in concrete to reduce environmental impact. The study first identified an optimal replacement percentage for FA (20%, 30%, and 40%) by weight of cement. Subsequently, using the optimal FA percentage, AF was added at varying percentages (5%, 10%, and 15%) by weight of cement. The study evaluated the mechanical properties of the concrete mixtures, including workability, compressive strength, split tensile strength, and flexural strength. Durability, measured by water sorptivity and rapid chloride penetrability tests, was also assessed. The microstructural properties of the concrete were analyzed to understand their influence on performance. As a result of the significant environmental implications of producing and using concrete for all activities, an in-depth life cycle assessment (LCA) was conducted. Additionally, artificial neural networks were employed to predict the compressive strength of the concrete. The study concluded that incorporating FA and AF in concrete mixtures is a promising approach to producing more environmentally friendly concrete.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Rep Año: 2024 Tipo del documento: Article País de afiliación: India Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Rep Año: 2024 Tipo del documento: Article País de afiliación: India Pais de publicación: Reino Unido