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Production of structural concrete and the effects of various waste materials on concrete used as partial replacements for cement

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Title Production of structural concrete and the effects of various waste materials on concrete used as partial replacements for cement
 
Creator Bano, Samreen
Mumtaz, Neha
Bano, Farheen
Singh, Vikash
Ahmad, Syed Aqeel
 
Subject Red mud
C&D waste
Eggshell powder
Compressive strength
Split tensile strength
Flexural strength
 
Description 124-136
Supplementary cementitious materials (SCMs) are additives incorporated into concrete mixtures to enhance their
properties and minimize their environmental impact. Common SCMs include fly ash, slag, silica fume, red mud,
construction and demolition waste (C&D), and mortar waste. The addition of SCMs in construction practices offers the
advantage of reducing the amount of Portland cement needed in concrete production, which is a significant contributor to
carbon dioxide emissions, thereby lowering greenhouse gas emissions. Furthermore, the addition of SCMs can improve the
durability and performance of concrete, making it a more sustainable option for construction projects.Consequently, the
construction industry is actively researching and developing novel materials to further enhance the sustainability of concrete.
Various alternatives exist for cement substitution, aiming to enhance the overall quality of concrete without compromising
its strength. This research study has been focused on assessing the effects of substituting cement with mortar, red mud, and
eggshells in the M25-grade of the concrete mixture. The evaluation involved measuring the compressive strength, flexural
strength, split tensile strength, and flexural strength at curing periods of 7, 14, and 28 days. The findings have revealed that
the application of these waste materials resulted in superior structural properties of concrete compared to traditional concrete
compositions. Additionally, the micro-structural characteristics of different waste materials have been investigated through
scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDX).
 
Date 2024-04-02T09:37:45Z
2024-04-02T09:37:45Z
2024-04
 
Type Article
 
Identifier 0975-1017 (Online); 0971-4588 (Print)
http://nopr.niscpr.res.in/handle/123456789/63667
https://doi.org/10.56042/ijems.v31i1.4246
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJEMS Vol.31(1) February