Influence of water to solid ratio on mechanical properties of GBFS-based geopolymer foam concrete

Tomasz Piotrowski , Piotr Prochoń

Abstract

The development of sustainable building materials with reduced environmental footprint in both, manufacturing and operational phases of the material lifecycle , is attracting increased interest in the onstruction industry worldwide. A recent innovation, the geopolymer foam concrete, combines the performance benefits and operational energy savings achievable through the use of lightweight foam concrete, with the cradle-to-gate emissions reductions obtained through the use of a geopolymer binder derived from granulated blast -furnace slag (GBFS). In this study mechanical properties of GBFS-based foam concrete were investigated for samples of different water to solid ratio (0.252, 0.287 and 0.321). According to ASTM C 796-97 both mass of the foaming solution and water in sodium silicate solution was considered as part of the total amount of mixing water. As a solid part, GBFS and solid part of activators (NaOH and sodium silicate) was accounted . A group of specimens (40x40x160 beams and 100x100x100 cubes) have been prepared and volume density, ben ding, compressive strength tests have been performed. In a result an optimized lightweight GBFS-based geopol ymer foam concrete was obtained, characterized by 1.8 kg/dm3 volume density, 2.6 MPa bending strength and 51.8 MPa compressive strength measured on beams and 44.1 MPa compressive strength on cubes
Author Tomasz Piotrowski (FCE / ICE)
Tomasz Piotrowski,,
- The Institute of Civil Engineering
, Piotr Prochoń (FCE / ICE)
Piotr Prochoń,,
- The Institute of Civil Engineering
Pages1-8
Publication size in sheets0.5
Book Hager I., Tracz T. (eds.): 8th Scientific-Technical Conference on Material Problems in Civil Engineering, 2018, Cracow University of Technology, ISBN 978-2-7598-9052-1, 450 p.
Keywords in Polishmateriały budowlane, cement, woda
Keywords in Englishbuilding material, GBFS, water, concrete, geopolymer
DOIDOI:10.1051/matecconf/201816306003
Languageen angielski
File
Piotrowski T.,matbud2018_06003.pdf 778.11 KB
Score (nominal)0
ScoreMinisterial score = 15.0, 10-01-2019, BookChapterMatConf
Ministerial score (2013-2016) = 15.0, 10-01-2019, BookChapterMatConf
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