Singh Utsav Ramesh Chhaya, Harsh Rathore | International Journal of Construction Engineering and Planning | Vol 10, Issue 02 | pp. 26-32 | ISSN: 2456-2335
Abstract
Abstract
This study investigates the production, properties, and performance of geopolymer masonry units,
utilizing Class F fly ash and Ground Granulated Blast Furnace Slag (GGBFS) as primary binders.
These binders were activated using an 8M alkaline solution, with the materials mixed alongside
manufactured sand (M-sand) as the fine aggregate. The binder-to-aggregate ratio was maintained at
1:1, while the alkaline solution-to-binder ratio was kept at 0.2. Various geopolymer masonry units,
including geopolymer bricks (GPB), solid blocks (GPSB), and hollow blocks (GPHB), were evaluated
for key performance parameters, such as dimensional accuracy, density, water absorption, and
compressive strength. The findings indicate that dimensional variations among the units remained
within the permissible limits as set by IS 1077:1992, with deviations ranging from 1 to 3 mm. Density
measurements revealed values between 1760 and 1810 kg/m³, which, although slightly lower than those
of conventional bricks, still fall within acceptable limits as per IS 2185:2008. Water absorption rates
were observed to range between 7.5% and 9.5%, staying within the standard thresholds. Compressive
strength tests demonstrated a significant improvement over time, with strength values reaching up to
25 MPa at 28 days, far exceeding the 3.5 MPa minimum required by IS 1077:1992. These results
underscore the potential of geopolymer masonry units as viable and sustainable alternatives to
conventional bricks, offering not only comparable mechanical properties but also reduced
environmental impact through the utilization of industrial by-products.
Keywords:Geopolymer bricks, fly ash, durability, SEM analysis, sustainable construction, masonry
units, alkaline solutions
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How to cite this article
@article{ChhayaSUR2024,
author = {Singh Utsav Ramesh Chhaya and Harsh Rathore},
title = {Performance Evaluation of Geopolymer Masonry Units Using Fly Ash and GGBFS: Dimensionality, Density, Water Absorption, and Compressive Strength Analysis},
journal = {International Journal of Construction Engineering and Planning},
year = {2024},
volume = {10},
number = {02},
pages = {26--32},
issn = {2456-2335},
url = {https://journalspub.com/publication/uncategorized/article=13795}
}