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Compressive strength of RCA concrete can be influenced by the properties and amount of recycled aggregate. Several factors can influence the compressive strength in RCA concrete, including the water/cement (w/c) ratio, the percentage of coarse aggregate replaced with RCA, and the amount of adhered mortar on the …
This study provides a comprehensive review on recycled aggregate (RA) and recycled aggregate concrete (RAC) regarding their history, recycling, reuse and manufacture process, inherent defects (e.g. existing of additional interfacial transition zones in RAC), and …
In this scenario, replacing NA with recycled aggregate (RA) from C&DW and other wastes can mitigate environmental problems. We review the use of RA for concrete production and draw the main challenges and outlook.
Recycled concrete aggregates are produced in stationary recycling plants similar to those used for natural crushed aggregate production. Processing usually includes two-stage crushing (primary with jaw crushers and secondary with impact crushers), …
Concrete production, integral to construction and demolition processes, generates substantial waste. This waste can be repurposed as recycled aggregates in new concrete …
By collecting the used concrete and breaking it up, recycled concrete aggregate (RCA) is created (Fig. 1). This paper focuses on coarse RCA which is the coarse aggregate from the original concrete that is created after the mortar is separated from the rock which is reused.
This study provides a comprehensive review on recycled aggregate (RA) and recycled aggregate concrete (RAC) regarding their history, recycling, reuse and manufacture process, inherent defects (e.g. existing of additional interfacial transition zones in RAC), and materials properties.
Recycled aggregate is defined as aggregate resulting from the processing of inorganic or mineral material previously used in construction (BS EN 12620, 2013; MPA, 2013). When consisting mainly of crushed concrete, it may be classified as recycled concrete aggregate (RCA).
In this scenario, replacing NA with recycled aggregate (RA) from C&DW and other wastes can mitigate environmental problems. We review the use of RA for concrete production and draw the main...
Assessments by FMI determined recycled concrete aggregate had a market value of over $9 million in 2023, with an estimated 8% compound annual growth rate. It could be …
In this scenario, replacing NA with recycled aggregate (RA) from C&DW and other wastes can mitigate environmental problems. We review the use of RA for concrete production and draw the main...
Assessments by FMI determined recycled concrete aggregate had a market value of over $9 million in 2023, with an estimated 8% compound annual growth rate. It could be worth $19.5 million by the end of 2033. One of the reasons for this is overall interest in construction and demolition (C&D) recycling as a whole.
The present paper discusses the various possible recycled aggregates used in concrete production, their effect on both fresh and hardened properties as well as durability performances.
Concrete production, integral to construction and demolition processes, generates substantial waste. This waste can be repurposed as recycled aggregates in new concrete production, offering sustainable solutions and addressing resource management and environmental concerns. This literature review
In this scenario, replacing NA with recycled aggregate (RA) from C&DW and other wastes can mitigate environmental problems. We review the use of RA for concrete production and draw …
Recycled aggregate is defined as aggregate resulting from the processing of inorganic or mineral material previously used in construction (BS EN 12620, 2013; MPA, 2013). When consisting …
Recycled Concrete Aggregate •What is RCA and Why Use it? •How is it Made? •Survey of State Practices •Areas of Concern •Availability and Economics •Pathway to Expanding Use