This research explores the sustainable application of bituminous emulsions in cold mix asphalt (CMA) technology, contributing to innovation in sustainable road development. CMA technology, known for its eco-friendly attributes, eliminates the need for heating during construction, making it suitable for regions with varied climates. Bituminous emulsions offer a sustainable alternative with lower energy requirements, reduced greenhouse gas emissions, and improved workability. Experimental investigations involve the preparation of cold mix semi-dense bituminous concrete, i.e., CMSDBC with the use of bituminous emulsion instead of conventional hot asphalt bituminous binder. The outcomes highlight favorable mechanical properties, including stability, density, and air voids. The incorporation of ground granulated blast furnace slag (GGBFS) as a filler enhances the stability of the cold mix. The research objectives include studying the mechanical properties of bituminous emulsion, assessing the strength behavior of bitumen concrete produced with bituminous emulsion, exploring the application of emulsion in production of CMSDBC with additives, and evaluating the stability of the same in highway construction. Experimental results reveal that the SDBC mix with 8.50% optimum bituminous emulsion content achieves a maximum Marshall stability value of 8.06 kN. The addition of GGBFS as a filler enhances stability, reaching a maximum Marshall stability value of 13.76 kN, by satisfying all the other necessary requirements as per IRC guidelines. These results prove the potential of bituminous emulsion in CMA technology as an eco-friendly and sustainable solution for road construction, aligning with the objectives of innovation and environmental responsibility in infrastructure development.

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Incorporation of Emulsion in Semi-dense Bituminous Concrete for Sustainable Cold Mix-Road Construction

  • N. Akshaya Krishna,
  • Shriram Marathe,
  • I. R. Mithanthaya

摘要

This research explores the sustainable application of bituminous emulsions in cold mix asphalt (CMA) technology, contributing to innovation in sustainable road development. CMA technology, known for its eco-friendly attributes, eliminates the need for heating during construction, making it suitable for regions with varied climates. Bituminous emulsions offer a sustainable alternative with lower energy requirements, reduced greenhouse gas emissions, and improved workability. Experimental investigations involve the preparation of cold mix semi-dense bituminous concrete, i.e., CMSDBC with the use of bituminous emulsion instead of conventional hot asphalt bituminous binder. The outcomes highlight favorable mechanical properties, including stability, density, and air voids. The incorporation of ground granulated blast furnace slag (GGBFS) as a filler enhances the stability of the cold mix. The research objectives include studying the mechanical properties of bituminous emulsion, assessing the strength behavior of bitumen concrete produced with bituminous emulsion, exploring the application of emulsion in production of CMSDBC with additives, and evaluating the stability of the same in highway construction. Experimental results reveal that the SDBC mix with 8.50% optimum bituminous emulsion content achieves a maximum Marshall stability value of 8.06 kN. The addition of GGBFS as a filler enhances stability, reaching a maximum Marshall stability value of 13.76 kN, by satisfying all the other necessary requirements as per IRC guidelines. These results prove the potential of bituminous emulsion in CMA technology as an eco-friendly and sustainable solution for road construction, aligning with the objectives of innovation and environmental responsibility in infrastructure development.