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Stream/Area:
-
Subject:
-
Paper ID:
IJSREM65689
Volume:
10 |
6 |
Jun 2026
Pages:
1-7
Publication Frequency:
Monthly (12 issues per year)
License:International Journal of Scientific Research in Engineering and Management follows the Creative Commons Attribution 4.0 (CC BY 4.0) License, allowing free use and distribution with proper attribution.
Department of Civil Engineering
All India Shri Shivaji Memorial Society's College Of Engineering , Pune
Department of Civil Engineering
All India Shri Shivaji Memorial Society's College Of Engineering , Pune
Department of Civil Engineering
All India Shri Shivaji Memorial Society's College Of Engineering , Pune
Department of Civil Engineering
All India Shri Shivaji Memorial Society's College Of Engineering , Pune
Department of Civil Engineering
All India Shri Shivaji Memorial Society's College Of Engineering , Pune
Department of Civil Engineering
All India Shri Shivaji Memorial Society's College Of Engineering , Pune
Department of Civil Engineering
All India Shri Shivaji Memorial Society's College Of Engineering , Pune
The poor thermal insulation of a building's outer walls leads to a major increase in the energy used by air conditioners in homes. A key way to improve a building’s energy efficiency is by using bricks that offer better thermal resistance. However, this issue is linked to another important challenge: managing waste in a way that is both cost-effective and eco-friendly, including using it to support industrial development, so as to minimize the negative impact of waste on the environment as waste production increases. To address this, the current study aimed to determine if adding a specific amount of eggshell waste, which acts as a calcium carbonate filler, can consistently result in fired clay bricks with good thermal insulation properties. By carefully examining the physical, chemical, and thermal properties of bricks with different levels of eggshell content, this research shows how waste materials can be reused to make sustainable construction materials with better performance. The results show major improvements in thermal conductivity, along with positive changes in porosity, bulk density, and mechanical strength. Heat Flow Meter analysis showed that the egg shell content namely, formation of siliceous melt leads to higher insulation properties. Compared to regular bricks, bricks made with 7% eggshell and a decrease in density as 8.75%, and an increase in compressive strength of 42.3%. The reduced shrinkage improves the bricks’ stability, while the larger pores and higher porosity enhance their insulation properties, making the bricks more durable and energy-efficient. In particular, bricks with 10% eggshell fired at 1100°C showed the greatest reductions in thermal conductivity (73.3%) compared to pure bricks. Considering these results, adding eggshell waste can help lower the energy needed for heating and cooling buildings. Therefore, using eggshell waste to produce calcium silicate makes it a viable material for thermal insulation, offering a path toward more efficient and sustainable construction materials.
KEYWORDS
This study demonstrates that eggshell powder, blended with clay, sand and hydrated lime, can be used to produce lime-cured (non-fired) bricks with improved thermal insulation relative to conventional fired clay bricks, while retaining adequate compressive strength for masonry use. Across eggshell contents of 3–7%, thermal conductivity decreased progressively (down to 0.366 W/m·K at 7% eggshell, a 26.8% reduction versus the conventional brick), density decreased modestly (to 1800 kg/m³), and compressive strength, although declining with higher eggshell content, remained above both the IS 3495 minimum and the conventional brick benchmark throughout. These results support eggshell waste as a viable, low-cost filler for sustainable, energy-efficient masonry, and point toward a practical, kiln-free manufacturing route suitable for small-scale and resource-limited construction settings.
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Publication Date
6/30/2026
Peer Review Type
Double-Blind Peer Review
Review Rounds: 2
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