Geopolymer Concrete Using Bottom Ash as Fine Aggregate

Thanushree N P, Keerti Malipatil, Maneeth P D and Brijubhushan

International Journal of Scientific Research in Science and Technology, 2026, vol. 13, issue 4, 198-209

Abstract: The present study explores performance of geopolymer concrete (GPC) using GGBFS as a Entire replacementfor OPC and bottom ash incorporated as a substitute for natural fine aggregate. Bottom ash was incorporated at replacement levels ranging from 0% to 50%, while NaOH and (Na₂SiO₃) served as alkaline activators. The workability of fresh concrete was evaluated using slump cone and compaction factor tests, whereas compressive strength and split tensile strength were determined after 7 and 28 days of ambient curing. The results showed that the mechanical properties improved with increasing bottom ash content up to an optimum level and decreased thereafter due to the porous nature of bottom ash. The mix containing 30% bottom ash (M-GPCB30) exhibited the best overall performance in terms of strength and durability. The findings demonstrate the potential of bottom ash as a partial alternative to river sand in GPC, enhancing sustainability in the construction industry by the utilization of industrial by-products and reducing environmental impacts.

Keywords: Geopolymer concrete; GGBFS; Bottom ash; Compressive strength; Sustainable construction (search for similar items in EconPapers)
Date: 2026
References: Add references at CitEc
Citations:

Downloads: (external link)
https://ijsrst.com/home/article/view/IJSRST2613428 Abstract page (text/html)
https://ijsrst.com/home/article/download/IJSRST2613428/IJSRST2613428 Full text (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:etm:ijsrst:v13:y2026:i4:id:1743

DOI: 10.32628/IJSRST2613428

Access Statistics for this article

More articles in International Journal of Scientific Research in Science and Technology from Technoscience Academy
Bibliographic data for series maintained by Pankaj Sharma ().