University of Oulu

Mastali M., Piekkari K., Kinnunen P., Illikainen M. (2018) Development of Fiber-Reinforced Slag-Based Geopolymer Concrete Containing Lightweight Aggregates Produced by Granulation of Petrit-T. In: Taha M. (eds) International Congress on Polymers in Concrete (ICPIC 2018). ICPIC 2018. Springer, Cham

Development of fiber-reinforced slag-based geopolymer concrete containing lightweight aggregates produced by granulation of Petrit-T

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Author: Mastali, Mohammad1; Piekkari, Katri1; Kinnunen, Päivö1;
Organizations: 1Fibre and Particle Engineering, Faculty of Technology, Univ. of Oulu, P.O. Box 4300, 90014 Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.5 MB)
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Language: English
Published: Springer Nature, 2018
Publish Date: 2019-12-09


Using by-products as alternatives to ordinary Portland cement (OPC) is attracting growing attention in the sustainable construction material sectors. Alkali-activated binders have been proposed and emerged as an alternative to OPC binders, which seem to have acceptable mechanical and durability performances in addition to positive environmental impacts. These alternative binders, also named “geopolymer,” use a wide range of aluminosilicate precursors, with differing availabilities, reactivates, costs, and CO₂ emissions. The usage of various materials results in obtaining the locally adaptable mix compositions, which establishes a broader toolkit. In this study, Petrit-T as a by-product from manufacturing sponge iron with fine particle-size distribution and rich in calcium was used to prepare the structural lightweight aggregates. Moreover, ground-granulated blast-furnace slag (GGBFS) as the binder was activated by a combination of sodium hydroxide and sodium silicate as the alkali activator. The effects of using different fiber types, including PVA, PP, and basalt, on mechanical properties were investigated. Mechanical properties were addressed in terms of the compressive and flexural strengths. The results showed that reinforcing the composition significantly affected the flexural performance. Moreover, it was revealed that using the granulated Petrit-T presented a lightweight concrete, with density ρ ≤ 1600 kg/m³.

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ISBN: 978-3-319-78175-4
ISBN Print: 978-3-319-78174-7
DOI: 10.1007/978-3-319-78175-4_73
Host publication: International Congress on Polymers in Concrete (ICPIC 2018); 2018; Washington DC, USA
Host publication editor: Reda Taha, Mahmoud M.
Conference: International Congress on Polymers in Concrete
Type of Publication: A4 Article in conference proceedings
Field of Science: 216 Materials engineering
212 Civil and construction engineering
218 Environmental engineering
214 Mechanical engineering
Funding: The study presented in this paper is a part of the research project “MINPET: mineral products from Petrit-T sidestream” that has received funding from the EIT RawMaterials, under grant agreement No. EIT/ EIT RAW MATERIALS/SGA2016/1.
Copyright information: © Springer International Publishing AG, part of Springer Nature 2018. This is a post-peer-review, pre-copyedit version of an article published in M. R. Taha (ed.), International Congress on Polymers in Concrete (ICPIC 2018). The final authenticated version is available online at: