Effects of Solid Activator and Fly Ash on Rheology and Thixotropy of One-Part Alkali-Activated Pastes

Yazan Alrefaei, Yan Shuai Wang, Ye Qian, Jian Guo Dai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

6 Citations (Scopus)

Abstract

Compared with conventional two-part alkali-activated materials (AAMs), one-part AAMs have several advantages, especially the simple production using only water similar to ordinary Portland cement. However, one-part AAMs are much less researched, especially in terms of rheology. Understanding the rheological behavior of such binders is a crucial step for their production, placement, and application in the construction industry. This paper studies the rheological properties of one-part AAMs through evaluating the dynamic yield stress, static yield stress, and thixotropic index. The effects of solid activator content, besides the effect of two types of fly ash (containing different amounts of carbonaceous impurities) with varying contents, are explored. The possible mechanisms are also discussed.

Original languageEnglish
Pages (from-to)139-151
Number of pages13
JournalJournal of Advanced Concrete Technology
Volume20
Issue number3
DOIs
Publication statusPublished - Mar 2022

ASJC Scopus subject areas

  • Building and Construction
  • General Materials Science

Fingerprint

Dive into the research topics of 'Effects of Solid Activator and Fly Ash on Rheology and Thixotropy of One-Part Alkali-Activated Pastes'. Together they form a unique fingerprint.

Cite this