Change in microstructure and compressive strength of alkali-activated slag paste at temperature exposure of 50°C

Jambunathan, N., Li, G., Korayem, A, Pan, Z., Duan, W. H., Collins, Francis and Sanjayan, J. 2012, Change in microstructure and compressive strength of alkali-activated slag paste at temperature exposure of 50°C, in ACUN-6 2012 – Proceedings of the 6th International Composites Conference on Composites and Nanocomposites in Civil, Offshore and Mining Infrastructure, ACUN-6 Monash University, Clayton, Vic., pp. 367-372.

Attached Files
Name Description MIMEType Size Downloads

Title Change in microstructure and compressive strength of alkali-activated slag paste at temperature exposure of 50°C
Author(s) Jambunathan, N.
Li, G.
Korayem, A
Pan, Z.
Duan, W. H.
Collins, FrancisORCID iD for Collins, Francis orcid.org/0000-0001-6331-5390
Sanjayan, J.
Conference name ACUN-6 Composites and Nanocomposites in Civil, Offshore and Mining Infrastructure. International Composites Conference (6th : 2012 : Melbourne, Victoria)
Conference location Melbourne, Victoria
Conference dates 14 - 16 Nov. 2012
Title of proceedings ACUN-6 2012 – Proceedings of the 6th International Composites Conference on Composites and Nanocomposites in Civil, Offshore and Mining Infrastructure
Editor(s) Bai, Yu
Bandyopadhyay, Sri
Zhao, Xiao-Ling
Singh, Raman
Rizkalla, Sami
Publication date 2012
Series ACUN International Composites Conference
Conference series Composite & nanocomposites in Civil, Offshore and Mining Infrastructure
Start page 367
End page 372
Total pages 5
Publisher ACUN-6 Monash University
Place of publication Clayton, Vic.
Keyword(s) alkali-activated slag
strength
microstructure
elevated temperature
deterioration
Summary This paper presents a study on the evolution of strength and alteration microstructure of alkali-activated slag (AAS) pastes exposed to 50°C. Ground granulated blast furnace slag (GGBFS) was used as thestarting material to prepare slags pastes which were then activated with a range of activators. The preliminary results from the study of these pastes are presented. It was found that all the pastes show a significantlystrength loss after exposure to 50°C for 24 hours. This is independent on the activators used. The paste samples were further examined by X-ray diffraction (XRD), differential thermal analysis (DTA), scanning electronmicroscopy (SEM) and sorptivity tests. A hypothesis for strength loss is proposed based on the observations in change of microstructure. This hypothesis will be further validated by the study of the AAS pastesprepared by using phosphorus slags.
ISBN 9780646585895
Language eng
Field of Research 090505 Infrastructure Engineering and Asset Management
090503 Construction Materials
Socio Economic Objective 870301 Cement and Concrete Materials
HERDC Research category E1.1 Full written paper - refereed
ERA Research output type E Conference publication
Copyright notice ©2012, ACUN-6 Monash University
Persistent URL http://hdl.handle.net/10536/DRO/DU:30080783

Document type: Conference Paper
Collection: Institute for Frontier Materials
Connect to link resolver
 
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 0 times in TR Web of Science
Scopus Citation Count Cited 0 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 198 Abstract Views, 5 File Downloads  -  Detailed Statistics
Created: Mon, 18 Jan 2016, 15:31:38 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.