Feasibility of using egg shell powder as supplementary cementitious material in self compacting concrete
- Vol.97(12), Dec
- Thane ACC LTD 2023
- 37-47p.
In the present study on SCC, 30 % of cement content of SCC is replaced with fly ash and 15 % with micro sized CaCO3 by weight. The rheology, compressive strength and durability in terms of resistance to water and chloride ion penetration are assessed as per the relevant codes of practice. With the increase in cementitious content, mixes with CaCO3 exhibited better rheological properties and increase of around 17 % in strength and nearly 70 % in water permeability of mixes in comparison with that of the control mix. The enhanced packing density and reduced porosity of SCC mixes due to the presence of finer CaCO3 particles might have resulted in improved strength and durability, hence reduces the earth’s carbon footprint.