Binder-Scale Creep Behavior of Metakaolin-Based Geopolymer

Abstract

In this study, the creep behavior of binder phase in metakaolin-based geopolymers (MKGs) was investigated using nanoindentation. The underlying influence of the Si/Al ratio on the creep behavior was determined from detailed microstructure characterization and micromechanical analysis. The results indicated a strong correlation between the binder-scale creep behavior in MKG and its microstructure, particularly the characteristic pore size, which was further related to the Si/Al ratios of the binder. Combined with micromechanical analysis, the underlying influence of the composition and structure on the creep behavior in MKG was further explained.

Department(s)

Civil, Architectural and Environmental Engineering

Research Center/Lab(s)

Center for Research in Energy and Environment (CREE)

Second Research Center/Lab

Center for High Performance Computing Research

Keywords and Phrases

Creep; Geopolymer; Nanoindentation

International Standard Serial Number (ISSN)

0008-8846

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2019 Elsevier Ltd, All rights reserved.

Publication Date

01 Oct 2019

Link to Full Text

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