Development of sustainable concrete using recycled aggregates from construction and demolition wastes

Abstract

Concrete is human-made substance that is the most commonly utilized newlinecomposite material on the planet. At the same time, unfortunately, it newlinerepresents a source of concern when it comes to environmental degradation. It newlineis of maximum importance to investigate the materials used to manufacture newlineconcrete, as well as their broader environmental impact. The main objective newlineof this research is to advance the adaptation of new types of aggregate in the newlineform of mixed recycled aggregate from the building and demolition debris. newlineThe earlier researches have a limited usage of recycled aggregates newlinefrom the CDW recycling plant instead of natural aggregates. This limitation newlineof earlier researches has been overcome in this current research by improving newlinethe mechanical, durability and microstructural properties of recycled newlineaggregate concrete using the concept of cementitious particle packing density. newlineThe findings of this research can further advance the usage of coarse and fine newlinerecycled aggregates and facilitates better management of demolition waste in newlinethe construction industry. newlineThe physical and chemical requirements of cementitious materials, newlinenatural and recycled aggregates (coarse and fine) were studied in detail. The newlinefresh density, variation in workability, and strength properties of recycled newlineaggregate concrete were tested for various replacement levels of recycled newlineaggregates. The data obtained from the experiment was designed by using newlineMinitab v18.1 software and fuzzy logic tool in MATLAB v9.13.0 (R2022b). newlineThe correlations were built using the outcomes of the hardened characteristics newlineof recycled aggregate concrete. newline