Concrete has increasingly incorporated recycled fine aggregates (RFA) generated from construction and demolition waste (C&DW) in recent decades. There haven’t been many research on how different microstructural and durability components are influenced by RFA concrete characteristics. Several nations have advocated using recycled coarse aggregate (RCA) in structural concrete. Several research have looked into replacing ordinary portland cement (OPC) with supplemental cementitious materials (SCMs) such as fly ash (FA), ground granulated blast furnace slag (GGBS), and silica fume (SF) and these SCMs improve the strength and durability properties. The purpose of this research is to compare the fresh, mechanical, durability, and microstructural qualities of RFA concrete to natural fine aggregate (NFA) at various volume replacement levels. This study also looks at the fresh, mechanical, durability, and microstructural performance of self-compacting concrete (SCC) with varied percentages of RFA substituting NFA. Combining these two ideas allowed the environmental and economic benefits.

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

A Critical Review on Utilization of Recycled Fine Aggregates in Concrete

  • Rishabh Tyagi,
  • Pradeep Kumar Goyal

摘要

Concrete has increasingly incorporated recycled fine aggregates (RFA) generated from construction and demolition waste (C&DW) in recent decades. There haven’t been many research on how different microstructural and durability components are influenced by RFA concrete characteristics. Several nations have advocated using recycled coarse aggregate (RCA) in structural concrete. Several research have looked into replacing ordinary portland cement (OPC) with supplemental cementitious materials (SCMs) such as fly ash (FA), ground granulated blast furnace slag (GGBS), and silica fume (SF) and these SCMs improve the strength and durability properties. The purpose of this research is to compare the fresh, mechanical, durability, and microstructural qualities of RFA concrete to natural fine aggregate (NFA) at various volume replacement levels. This study also looks at the fresh, mechanical, durability, and microstructural performance of self-compacting concrete (SCC) with varied percentages of RFA substituting NFA. Combining these two ideas allowed the environmental and economic benefits.