Effect of the Ground Granulated Blast Furnaceslag on the Pore Structure of Concrete
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Senior Lectures Post Graduate of Civil Eng. Sangga Buana University, Jalan Surapati No. 189 Bandung-West Java 40123, Indonesia
Submission date: 2020-06-29
Final revision date: 2020-12-04
Acceptance date: 2020-12-05
Publication date: 2021-03-31
Archives of Civil Engineering 2021;67(1):203-214
The objective of this study is to analyze effect of ground granulated blast furnace slag (GGBFS) in concrete on the pore structure, this research will contribute to the knowledge regarding the use of GGBFS as a cementitious material in terms of the future reference and potential improvement to the properties of concrete. To this aim, on the one hand a control specimens (CS) and another samples with 40% and 60% of GGBFS as replacement cement with moist cured at 20oC, 27oC, and cured at site. The compressive strength and the Mercury intrusion porosimetry (MIP) test were done. The result indicates that the strength of concrete with GGBFS at early ages tend to be lower in comparison with the CS. However, the GGBFS reaction plays important roles at the later ages. The samples cured at higher temperature produce higher strength value. The total pore volume (TPV) of the concrete use GGBFS decreases with increasing age.
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