Durability Properties and Microstructure of Ground Granulated Blast Furnace Slag Cement Concrete
By Bahador Sabet Divsholi, Tze Yang Darren Lim, S. Teng. 2014
181 citations recorded by the source corpus.
Ground granulated blast-furnace slag (GGBS) is a green construction material used to produce durable concrete. The secondary pozzolanic reactions can result in reduced pore connectivity; therefore, replacing partial amount of Portland cement (PC) with GGBS can significantly reduce the risk of sulfate attack, alkali–silica reactions and chloride penetration. However, it may also reduce the concrete resistance against carbonation. Due to the time consuming process of concrete carbonation, many researchers have used accelerated carbonation test to shorten the experimental time. However, there are always some uncertainties in the accelerated carbonation test results. Most importantly, the moisture content and moisture profile of the concrete before the carbonation test can significantly affect the test results. In this work, more than 200 samples with various water–cementitious material ratios and various replacement percentages of GGBS were cast. The compressive strength, electrical resistivity, chloride permeability and carbonation tests were conducted. The moisture loss and microstructure of concrete were studied. The partial replacement of PC with GGBS produced considerable improvement on various properties of concrete.
Subfields: Civil and Structural Engineering, Pollution
View Paper: https://www.semanticscholar.org/paper/83579d20fb5292fd8745c88532fe8e45546e1d90
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In Civil and Structural Engineering
Citations in the corpus
- Durability of mortar and concrete made up of pozzolans as a partial replacement of cement: A review (2016, background): “[57] showed that partial replacement of GGBS with Portland cement (PC) significantly reduces chloride ion penetration.”