Properties of Self-Compacting Concrete Prepared with Coarse Recycled Concrete Aggregates and Different Water:Cement Ratios

Influence of Design Parameters on Fresh Properties of Self-Compacting Concrete with Recycled Aggregate—A Review

“…Ouldkhaoua et al [ 45 ] used metakaolin as obtained from the calcination of kaolin. Nieto [ 71 ] used an aggregate from crushed structural concrete. Dapena [ 72 ] used RA from structural concrete, crushing plants with a strength between 15 and 35 MPa.…”

“…Nieto et al, 2019 [ 71 ] prepared five different mixes, each divided into two groups. The first group contained concrete with different water-cement ratios W/C 0.55, 0.50, and 0.45, with different quantities of cement 367, 386, and 408 kg/m 3 , respectively and different substitution rates of NCA with RCA 0%, 20%, 40%, 60%, 80%, and 100%.…”

“…The addition of GGBFS in SCC enhances the durability properties of SCC [ 69 ]. With an increase in the replacement percentage of NCA by RCA, the fluidity of SCC is reduced [ 71 ] due to the higher water absorption characteristics of RCA. This leads to an increase in the utilization of SP in SCC to maintain the same fluidity [ 71 ].…”

“…With an increase in the replacement percentage of NCA by RCA, the fluidity of SCC is reduced [ 71 ] due to the higher water absorption characteristics of RCA. This leads to an increase in the utilization of SP in SCC to maintain the same fluidity [ 71 ]. From the material and economic optimization perspective, there is a more focus on the reduction of SP quantity in the mix [ 71 ].…”

“…This leads to an increase in the utilization of SP in SCC to maintain the same fluidity [ 71 ]. From the material and economic optimization perspective, there is a more focus on the reduction of SP quantity in the mix [ 71 ]. The addition of marble powder results in a decrease in void content due to its filler effect [ 75 ] in the mixture.…”