Geopolymer concrete can be the green replacement for cement concrete, as it can be made by using inexpensive industrial by-products such as red mud, ground granulated blast-furnace slag, metakaolin, fly ash, silica fumes, etc. The geopolymer’s long-polymerized strength, which induces an amorphous molecular structure, requires activation by an alkali solution. In addition to the widespread use of geopolymer concrete in the construction sector, the improvement in mechanical properties and greater cost reliability of geopolymer concrete can be achieved by the introduction of recycled waste aggregate materials such as recycled cement concrete aggregate, reclaimed asphalt pavement aggregate, ferrochrome slag aggregate, and other recovered waste aggregate from industry and construction demolition debris. The use of recycled waste material aggregate improves the quality of geopolymer concrete, increases environmental sustainability, and aids in the reduction of carbon footprints. In previous studies, it has been shown that the use of recycled waste aggregates can improve the durability, strength, and microstructural properties of geopolymer concrete and reduce the cost of concrete in different replacement ratios. This paper has been formulated based on significant research being conducted lately by researchers in order to understand the distinctive mechanical properties and reduction in the cost of geopolymer concrete using recycled waste aggregates as a partial or complete replacement for conventional aggregate. Finally, this research review leads to the fact that geopolymer concrete can be seen as an easy, resilient, and eco-friendly building material.

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A Review on the Mechanical and Economical Aspects of Geopolymer Concrete with Recycled Waste Aggregate

  • Sajan Sharma,
  • Shailja Bawa

摘要

Geopolymer concrete can be the green replacement for cement concrete, as it can be made by using inexpensive industrial by-products such as red mud, ground granulated blast-furnace slag, metakaolin, fly ash, silica fumes, etc. The geopolymer’s long-polymerized strength, which induces an amorphous molecular structure, requires activation by an alkali solution. In addition to the widespread use of geopolymer concrete in the construction sector, the improvement in mechanical properties and greater cost reliability of geopolymer concrete can be achieved by the introduction of recycled waste aggregate materials such as recycled cement concrete aggregate, reclaimed asphalt pavement aggregate, ferrochrome slag aggregate, and other recovered waste aggregate from industry and construction demolition debris. The use of recycled waste material aggregate improves the quality of geopolymer concrete, increases environmental sustainability, and aids in the reduction of carbon footprints. In previous studies, it has been shown that the use of recycled waste aggregates can improve the durability, strength, and microstructural properties of geopolymer concrete and reduce the cost of concrete in different replacement ratios. This paper has been formulated based on significant research being conducted lately by researchers in order to understand the distinctive mechanical properties and reduction in the cost of geopolymer concrete using recycled waste aggregates as a partial or complete replacement for conventional aggregate. Finally, this research review leads to the fact that geopolymer concrete can be seen as an easy, resilient, and eco-friendly building material.