Abstract
Natural pozzolan is a green and sustainable material, which has a strong potential for utilization in the geopolymer concrete. At room temperature, the development of strength in natural pozzolan based geopolymer concrete is fair, however, it is desirable, to have higher strength and to enhance the early age strength development. The effect of nano zeolite (NZ) as an additive to the mix by incorporating it at 3% and 5% by weight of natural pozzolan on the strength development and microstructural properties of natural pozzolan based geopolymer concrete mixes are presented. Scanning electron microscopy (SEM) was utilized to determine the morphology of the paste. The results indicated that 5% nanozeolite replacement resulted in superior strength and denser microstructure compared to other mixes. The addition of nanozeolite improved dissolution of source material in the alkaline activators and enhanced transformation of it to form polymeric compounds.
| Original language | English |
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| Title of host publication | ISEC 2019 - 10th International Structural Engineering and Construction Conference |
| Editors | Didem Ozevin, Hossein Ataei, Mehdi Modares, Asli Pelin Gurgun, Siamak Yazdani, Amarjit Singh |
| Publisher | ISEC Press |
| ISBN (Electronic) | 9780996043762 |
| State | Published - 2019 |
Publication series
| Name | ISEC 2019 - 10th International Structural Engineering and Construction Conference |
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Bibliographical note
Publisher Copyright:Copyright © 2019 ISEC Press.
Keywords
- Compressive strength
- Geopolymer concrete
- Morphology
- Nano zeolite
- Natural pozzolan (NP)
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction