TY - JOUR
T1 - Eco-concrete for sustainability
T2 - utilizing aluminium dross and iron slag as partial replacement materials
AU - Javali, Shriraksha
AU - Chandrashekar, A. R.
AU - Naganna, Sujay Raghavendra
AU - Manu, D. S.
AU - Hiremath, Parameshwar
AU - Preethi, H. G.
AU - Vinod Kumar, N.
N1 - Funding Information:
Acknowledgements The authors would like to thank the Assistant Executive Engineer of Quality Assurance Laboratory, Public Works, Port and Internal Water Transport Department, Dharwad, for allowing access to the experimental facilities and the laboratory staff for their help and assistance during experimentation. We are deeply indebted to Nikita Metallurgicals Pvt. Limited, Raipur, for providing us sufficient quantity of aluminium dross used in the research. The authors would like to acknowledge the support from Chemical Engineering Department, National Institute of Technology Karnataka, for letting us to conduct tests using Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) equipment procured from the FIST fund of Department of Science and Technology, Government of India.
Publisher Copyright:
© 2017, Springer-Verlag GmbH Germany.
PY - 2017/11/1
Y1 - 2017/11/1
N2 - Emphasis on utilizing the industrial waste/discarded materials can be brought about by discovering innovative methods of disposal. One such a way of waste disposal can be through utilizing them in concrete production as a filler material or pozzolana. In this regard, the present study proposes to use the aluminium dross and granular iron slag as partial replacement materials for cement and natural sand, respectively, to develop eco-concrete. Nine mixes were produced with different proportions of cement, aluminium dross, sand and granular iron slag content. The aluminium dross was replaced at 5, 10, 15 and 20% of the weight of the cement. Initially, the optimal substitution percentage of aluminium dross was found without the substitution of iron slag based on the strength results. Later, by adopting the optimal aluminium dross percentage with cement, the granular iron slag was partially substituted at 10, 20, 30 and 40% of natural sand to find the overall optimal blend. The strength and durability properties of the M40 grade concrete employing these two admixture combinations were analysed. It was noticed that the strength and durability properties of the eco-concrete produced by incorporating aluminium dross −5% and iron slag −20% were comparable to that of conventional concrete. Furthermore, from the toxicity analysis, it was seen that the leaching of heavy and trace elements from the eco-concrete was negligibly small and within the limits. In near future, the cost-effective, eco-friendly materials and technologies can be opted as a perpetual strategy to overcome severe material shortages for resource conservation and economy.
AB - Emphasis on utilizing the industrial waste/discarded materials can be brought about by discovering innovative methods of disposal. One such a way of waste disposal can be through utilizing them in concrete production as a filler material or pozzolana. In this regard, the present study proposes to use the aluminium dross and granular iron slag as partial replacement materials for cement and natural sand, respectively, to develop eco-concrete. Nine mixes were produced with different proportions of cement, aluminium dross, sand and granular iron slag content. The aluminium dross was replaced at 5, 10, 15 and 20% of the weight of the cement. Initially, the optimal substitution percentage of aluminium dross was found without the substitution of iron slag based on the strength results. Later, by adopting the optimal aluminium dross percentage with cement, the granular iron slag was partially substituted at 10, 20, 30 and 40% of natural sand to find the overall optimal blend. The strength and durability properties of the M40 grade concrete employing these two admixture combinations were analysed. It was noticed that the strength and durability properties of the eco-concrete produced by incorporating aluminium dross −5% and iron slag −20% were comparable to that of conventional concrete. Furthermore, from the toxicity analysis, it was seen that the leaching of heavy and trace elements from the eco-concrete was negligibly small and within the limits. In near future, the cost-effective, eco-friendly materials and technologies can be opted as a perpetual strategy to overcome severe material shortages for resource conservation and economy.
UR - https://www.scopus.com/pages/publications/85029588294
UR - https://www.scopus.com/pages/publications/85029588294#tab=citedBy
U2 - 10.1007/s10098-017-1419-9
DO - 10.1007/s10098-017-1419-9
M3 - Article
AN - SCOPUS:85029588294
SN - 1618-954X
VL - 19
SP - 2291
EP - 2304
JO - Clean Technologies and Environmental Policy
JF - Clean Technologies and Environmental Policy
IS - 9
ER -