The Technical Characteristics of Eco-Friendly Concrete Reinforced with Coal Bottom Ash

• Martyana Dwi Cahyati

  English

  Author

• Aulia Rahman

  English

  Author

One of the leading global contributors of carbon dioxide is the building material concrete. Yet, research shows that concrete
manufacturing will keep going up until 2050, particularly in emerging nations. Multiple studies have shown that cement
production ranks high among the concrete industry's major carbon dioxide emitters. Furthermore, the excessive use of
aggregates in concrete manufacturing also leads to inevitable harm to the environment. As an eco-friendly alternative to
cement and fine aggregate, bottom ash waste was used in the building process. It is believed that this study would enable the
complete use of industrial waste, leading to a greener concrete with reduced carbon dioxide emissions throughout production.
Part one of this research focuses on using bottom ash in place of cement, while part two examines its potential use as a fine
aggregate alternative. The studies in this research examined the engineering qualities of the concrete in both its fresh and
hardened phases. To find out how workable new concrete is, one does the slump test. Tests for the hardened attributes include
mass density, flexural strength, compressive strength, and splitting tensile strength. The use of bottom ash as a substitute for
cement shows that the hardened qualities of concrete are negatively affected by increasing the proportion of bottom ash. It has
been observed that the performance of hardened characteristics has improved with increasing proportions of bottom ash when
utilizing it as a substitute for fine aggregate.

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