Enhancing thixotropy and structural build-up of alkali-activated slag/fly ash pastes with nano clay

No Thumbnail Available

Date

2021

Journal Title

Journal ISSN

Volume Title

Publisher

Springer

Open Access Color

OpenAIRE Downloads

OpenAIRE Views

Research Projects

Organizational Units

Journal Issue

Abstract

This study investigates the influence of nano clay on the rheological properties of alkali-activated cement pastes having different GGBFS/FA ratios. The thixotropic index, structural build-up, dynamic yield stress and heat evolution of fresh AAC pastes with addition of nano clay are studied. Test results showed that nano clay had a strong influence on the thixotropy/structural build-up and dynamic yield stress of AAC pastes depending on the GGBFS/FA ratio of the mixture. It was found that the pastes with lower GGBFS/FA ratio exhibited higher thixotropic index, but lower dynamic yield stress in the presence of nano clay. This study reveals the importance of GGBFS/FA ratio in the presence of nano clay for obtaining AAC mixtures with low dynamic yield stress for a better flowability and high thixotropy/structural build-up for stability.

Description

Keywords

Thixotropy, Ground blast-furnace slag, Fly ash, Nano clay, Structural build-up

Turkish CoHE Thesis Center URL

Fields of Science

Citation

25

WoS Q

Q2

Scopus Q

Q2

Source

Volume

54

Issue

4

Start Page

End Page