Experimental Investigation on High Performance Green Concrete (HPGC) Produced with Iron Filings
DOI:
https://doi.org/10.56801/MME1066Keywords:
High performance, green concrete, iron filings, fine aggregates, mechanical properties.Abstract
The acronym "HPGC" refers to "high performance green concrete." This breakthrough is significant because it moves the industry closer to its goal of replacing concrete with eco-friendly alternatives that claim superior mechanical qualities, thereby making concrete a more sustainable building material. When working with metal, a fine powdery dust known as "iron filings" is inevitably created. The purpose of this study was to evaluate the usefulness of iron filings as a fine aggregate in building projects. An experiment was conducted to examine the mechanical iron filings' effects on concrete's characteristics utilised as a supplement to sand. Using a range of sand replacement percentages (0% (control mix), 10% (treatment mix), 20% (treatment mix), and 30% (treatment mix)), the compressive, split-tensile, and flexural strengths of 35 concrete specimens consist of cubes, cylinders, and prisms were tested after 28 days of treatment in water. The findings indicated that the mechanical qualities of HPGC were enhanced when iron filings were used in place of sand, but that the concrete's slump value and workability were diminished. Therefore, only 30% of the sand (fine particles) should be substituted by weight with iron filings in the concrete mix, depending on the desired strength attribute. In this case, the concrete's compressive strength is increased by 13.2%, split-tensile strength by 21.1%, and flexural strength by 49.88%, all by replacing 30% of the sand (fine particles) with iron filings. Therefore, employing iron filings in concrete will help with recycling and waste reduction.
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