Abstract
Geopolymeric binders exhibit high thermal stability and consequently it is believed that these materials can be extensively used in the construction of infrastructure, where fire safety is of major concern. For such applications, thermal properties play a fundamental role in the heat transfer calculation. This paper aims to provide a comprehensive experimental study of thermal properties of various geopolymeric binders at elevated temperatures. The binders were prepared using alkaliactivated low calcium fly ash/ground granulated blast-furnace slag at ratios of 100/0, 50/50, 10/90 and 0/100 wt%. A transient plane source measurement technique was applied to assess the heat capacity and thermal conductivity at temperatures ranging from 23-600 oC. Data generated was utilised to develop analytical expressions for estimating thermal properties as a function of temperature. The simplified relationships can be used for estimating the fire resistance of structural elements made with geopolymeric materials.
| Original language | English |
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| Title of host publication | Proceedings of the 1st International Conference on Structural Engineering Research, 20-22 November 2017, Sydney, Australia |
| Publisher | Science, Technology and Management Crest Australia |
| Pages | 79-86 |
| Number of pages | 8 |
| ISBN (Print) | 9780648014768 |
| Publication status | Published - 2017 |
| Event | International Conference on Structural Engineering Research - Duration: 20 Nov 2017 → … |
Conference
| Conference | International Conference on Structural Engineering Research |
|---|---|
| Period | 20/11/17 → … |
Keywords
- thermal conductivity
- specific heat
- high temperatures
- polymers
- fly ash