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http://dx.doi.org/10.14190/JRCR.2022.10.2.159

Freeze-Thaw Resistance of Alkali Activated Ternary Blended Cement Incorporated with Ferronickel Slag  

Cho, Won-Jung (Department of Civil and Environmental System Engineering, Hanyang University)
Park, Kwang-Pil (Technology Commercialization Business Dept, Green Energy Insititute)
Ann, Ki-Yong (Department of Civil and Environmental System Engineering, Hanyang University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.10, no.2, 2022 , pp. 159-167 More about this Journal
Abstract
The present study assessed the micro structure and durability characteristics of ternary blended cement with different types of alkali activators. Ground granulated blast furnace slag(GGBS) and ferronickel slag(FNS) was replaced until 50 % of the weight of cement. In addition, potassuim hydroxide and sodium hydroxide were used for comparing the properties of different type of alkali activator. Ternary blended cement with alkali activators showed higher peak portlandite peak than that of OPC(Ordinary Portlande Cement) and non activated ternary blended cement. Also, there was no new hydration products in ternary blended cement or/and alkali activators. Based on the mercury intrustion porosimetry(MIP) test result, ternary blended cement increased macro pore while alkali activated ternary blended cement modified pore structure and increased microp pore as compared to OPC as control. Combination with alkali activators is desirable to enhance the compressive strength and freeze thaw resistance.
Keywords
Alkali activator; Ferronickel slag; Ternary blended cement; Freeze thaw resistance;
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Times Cited By KSCI : 2  (Citation Analysis)
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