evaluating the differences between one-part and two-part variations
Elijah Adesanya (Author), Rawia Dabbebi (Author), Christine Rößler (Author), Majda Pavlin (Author), Zhenming Li (Author), Tero Luukkonen (Author), Juho Yliniemi (Author), Mirja Illikainen (Author)

Abstract

Two synthesis pathways (one- and two-part) in alkali-activated binders were compared using ground granulated blast furnace slag (GGBFS), mineral wool (MW) activated using dry and liquid alkali activators with similar Na2O/SiO2 modulus. The effect of activator type on reaction kinetics, strength development, setting times, and durability shows that one-part synthesis does not only improve early strength, but also provide better durability properties. While the highest compressive strength (56 MPa, 90 days) was achieved for the one-part mix (DM), the reaction products (presence of Mg–Al layered double hydroxide and C–S–H-like phases) observed for both mortar mixes were similar. The DM mortars showed better resistance to sulfate attack than two-part mix (WM) mortars and sets faster. The results highlight the significance of the one-part pathways in the synthesis of alkali-activated materials.

Keywords

recikliranje;alkalijsko aktivirani materiali;mineralna volna;recycling;alkali activated material;mineral wool;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: ZAG - Slovenian National Building and Civil Engineering Institute
Publisher: Springer
UDC: 54
COBISS: 182875651 Link will open in a new window
ISSN: 1438-4957
Views: 28
Downloads: 16
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Other data

Secondary language: Slovenian
Secondary keywords: recikliranje;alkalijsko aktivirani materiali;mineralna volna;
Pages: str. 1001-1011
Issue: ǂVol. ǂ26
Chronology: Jan. 2024
DOI: 10.1007/s10163-023-01878-3
ID: 23118998
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