TY - GEN
T1 - Experimental study on blast furnace nickel slag powder and fly ash as a binder for geopolymer concrete
AU - Nelfia, Lisa Oksri
AU - Rahmawati, Mutia
AU - Astutiningsih, Sotya
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2021.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021
Y1 - 2021
N2 - This paper investigates the characteristics of concrete made from blast furnace nickel slag powder (BFNSP) and fly ash (FA) to use an alternative binder to conventional Portland cement (PC) by making a geopolymer concrete using an alkali activator. Samples for testing were made using 100% of BFNSP, and 50% BFNSP + 50% FA combination binder, as a direct replacement for the PC in concrete. These test samples were evaluated by compression and slump tests, also using the Le Chatelier’ method, XRF, and SEM analysis of microstructure properties. The samples with BFNSP were activated with alkaline activators with molarities of 12M and 6M with a ratio of Na2SiO3 to NaOH of 2.5. The test samples with 100% BFNSP and 12M activator showed the most slump and workability. However, the 50% BFNSP + 50% FA mix and 12M activator had the highest compressive strength at 55.97Mpa at 28 days. These results compare very favorably with the control Portland cement sample.
AB - This paper investigates the characteristics of concrete made from blast furnace nickel slag powder (BFNSP) and fly ash (FA) to use an alternative binder to conventional Portland cement (PC) by making a geopolymer concrete using an alkali activator. Samples for testing were made using 100% of BFNSP, and 50% BFNSP + 50% FA combination binder, as a direct replacement for the PC in concrete. These test samples were evaluated by compression and slump tests, also using the Le Chatelier’ method, XRF, and SEM analysis of microstructure properties. The samples with BFNSP were activated with alkaline activators with molarities of 12M and 6M with a ratio of Na2SiO3 to NaOH of 2.5. The test samples with 100% BFNSP and 12M activator showed the most slump and workability. However, the 50% BFNSP + 50% FA mix and 12M activator had the highest compressive strength at 55.97Mpa at 28 days. These results compare very favorably with the control Portland cement sample.
KW - Binders
KW - Blast furnace nickel slag powder
KW - Fly ash
KW - Geopolymer concrete
KW - SEM
UR - http://www.scopus.com/inward/record.url?scp=85100794714&partnerID=8YFLogxK
U2 - 10.1007/978-981-33-6311-3_44
DO - 10.1007/978-981-33-6311-3_44
M3 - Conference contribution
AN - SCOPUS:85100794714
SN - 9789813363106
T3 - Lecture Notes in Civil Engineering
SP - 385
EP - 395
BT - ICCOEE 2020 - Proceedings of the 6th International Conference on Civil, Offshore and Environmental Engineering, ICCOEE 2020
A2 - Mohammed, Bashar S.
A2 - Kutty, Shamsul Rahman M.
A2 - Balogun, Abdul-Lateef
A2 - Shafiq, Nasir
A2 - Mohamad, Hisham
PB - Springer Science and Business Media Deutschland GmbH
T2 - 6th International Conference on Civil, Offshore and Environmental Engineering, ICCOEE 2020
Y2 - 13 July 2021 through 15 July 2021
ER -