A state-of-the-art review on recycling rubber in concrete
Sustainability aspects, specialty mixtures, and treatment methods
Sahil Surehali (Arizona State University)
Avishreshth Singh (TU Delft - Pavement Engineering)
Krishna Prapoorna Biligiri (Indian Institute of Technology Tirupati)
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Abstract
Although multiple studies have reviewed the mechanical, durability, and acoustic characteristics of rubberized concrete (RC) mixtures, very limited studies have focused on a comprehensive collation of literature pertaining to their environmental, economic, and field implementation aspects. Therefore, this paper presented the state-of-the-art pertinent to environmental and economic aspects, thermal savings in terms of energy and emissions, and field applications of RC mixtures. Further, none of the studies have systematically reviewed the literature specific to specialty RC mixtures (pervious concrete, self-compacting concrete, and roller-compacted concrete), which was thoroughly examined. The various rubber treatment methodologies to enhance rubber-cement interaction were underscored and the impact of rubber aggregates on mix properties was discussed. Importantly, this state-of-the-art review identified the scope for future advancements at environmental, economic, and technical levels, which is envisioned to advance the widespread implementation of RC and pave the way for creation of an eco-efficient built environment.
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