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International Journal for Research Trends and Innovation
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ISSN Approved Journal No: 2456-3315 | Impact factor: 8.14 | ESTD Year: 2016
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Issue: May 2026
Volume 11 | Issue 5
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Impact Factor : 8.14
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| Paper Title: | Experimental Investigation on Autoclaved Aerated Concrete Blocks Incorporating Waste Foundry Sand and Chopped Micro Basalt Fibre |
| Authors Name: | Pavith P , Bhuvaneshwar B , Naveena R , Shenbana K |
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IJRTI_211810
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| Published Paper Id: | IJRTI2604215 |
| Published In: | Volume 11 Issue 4, April-2026 |
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| Abstract: | Growing scarcity of natural river sand and the persistent accumulation of industrial solid waste have created a compelling urgency for alternative approaches in lightweight masonry construction. This study investigates the combined influence of waste foundry sand (WFS) — collected locally from an iron casting facility in Coimbatore — and 6 mm chopped micro basalt fibre on the physio-mechanical characteristics of Autoclaved Aerated Concrete (AAC) blocks. Five mix proportions were designed around a fixed binder system comprising fly ash (Class F), Portland cement, quicklime, and gypsum. WFS replaced fly ash at 0%, 10%, 20%, 25%, and 30% by mass, while basalt fibre content varied from 0% to 1.0% of binder weight. All dry constituents were oven-dried for 24 hours and sieved before batching. Owing to the unavailability of an industrial autoclave at the laboratory stage, fabricated blocks underwent accelerated steam curing at 50°C for 16 hours inside a curing tank, followed by ambient air curing. Block-level properties examined include compressive strength, dry density, porosity, water absorption, and thermal resistance, all benchmarked against IS 2185 (Part 3) and IS 6441 requirements. Dry densities recorded between 698 kg/m³ and 742 kg/m³ confirmed IS-compliant lightweight classification, and thermal resistance values of 0.40–1.25 m²K/W aligned with commercial AAC standards. Compressive strength ranged from 0.32 N/mm² to 0.69 N/mm² under steam curing — below the IS minimum of 3 N/mm² — however this shortfall is attributed to the absence of true autoclave conditions rather than any deficiency in mix chemistry. The progressive gain in strength across successive trial batches, combined with the silica-rich nature of the WFS (approximately 62% SiO₂), affirms the chemical soundness of the developed formulation. |
| Keywords: | Autoclaved Aerated Concrete (AAC), Waste Foundry Sand, Micro Basalt Fibre, Tobermorite, Sustainable Masonry, Steam Curing, IS 2185 |
| Cite Article: | "Experimental Investigation on Autoclaved Aerated Concrete Blocks Incorporating Waste Foundry Sand and Chopped Micro Basalt Fibre", International Journal for Research Trends and Innovation (www.ijrti.org), ISSN:2456-3315, Vol.11, Issue 4, page no.b585-b591, April-2026, Available :http://www.ijrti.org/papers/IJRTI2604215.pdf |
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2456-3315 | IMPACT FACTOR: 8.14 Calculated By Google Scholar| ESTD YEAR: 2016 An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.14 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator |
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Published Paper ID: IJRTI2604215
Registration ID:211810
Published In: Volume 11 Issue 4, April-2026
DOI (Digital Object Identifier):
Page No: b585-b591 Country: Coimbatore, Tamil Nadu , India Research Area: Civil Engineering Publisher : IJ Publication Published Paper URL : https://www.ijrti.org/viewpaperforall?paper=IJRTI2604215 Published Paper PDF: https://www.ijrti.org/papers/IJRTI2604215 |
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ISSN: 2456-3315
Impact Factor: 8.14 and ISSN APPROVED,
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