High Performance Concrete with EAF Slag Aggregate and Processed Quarry Dust, Design Methodology to Improve the Quality of Recycled Aggregate Concrete.
Study on high-performance concrete of containing EAF Slag Aggregate and Processed Quarry Dust
Rapid growth in infrastructure development demands High-Performance Concrete (HPC) due to its versatile characteristics. Aggregate occupies usually about 2/3rd of the total volume of concrete, which dictates to use of a huge amount of natural aggregate. Depletion and non-availability of natural aggregate create a path to use alternative materials. These hands in problems have created Sustainable Development Goals (SDG) norms that lead many countries to develop energy-efficient and sustainable concrete. SDG standards are suggested to use a material that should reduce carbon emission and green gas emission. Processed quarry dust and steel slag coarse aggregate are such material types that reduce natural fine aggregate and coarse aggregate consumption respectively in a significant way. The present study aims to investigate the effect of nano silica in ternary i.e., OPC-GGBS-nano silica binder composite as well as the influence of the same on EAF coarse aggregate-based various high performance concrete mixtures.
Developing design methodology to improve the quality of recycled aggregate concrete (RAC)
The use of RCA, in particular aggregates from C&D waste or precast concrete residues, seems to be a promising contribution towards the sustainability of the construction industry. The main objective of the research is to promote the use of coarse recycled concrete aggregates (CRCA) as a complete replacement to the natural coarse aggregates (NCA) in the concrete. In India, the RCA application in lower grade concrete work is observed. However, the effect of RCA on the strength and durability of concrete restricts its use in higher-grade work. Thus, more focused research needs to be conducted in this area for the efficient use of RCA as a structural material.
K, Balakrishna Rao Dr, "High Performance Concrete with EAF Slag Aggregate and Processed Quarry Dust, Design Methodology to Improve the Quality of Recycled Aggregate Concrete." (2022). Technical Collection. 67.