Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/22563
Title: Effects of crushed glass cullet sizes, casting methods and pozzolanic materials on ASR of concrete blocks
Authors: Lee, G
Ling, TC
Wong, YL
Poon, CS 
Keywords: ASR
Dry-mixed method
Particle size distribution
Pozzolanic materials
Recycled glass
Issue Date: 2011
Publisher: Elsevier
Source: Construction and building materials, 2011, v. 25, no. 5, p. 2611-2618 How to cite?
Journal: Construction and building materials 
Abstract: The aim of this study is to investigate the influence of using different particle sizes of recycled glass, casting methods and pozzolanic materials in reducing the expansion due to alkali-silica reaction (ASR) of concrete blocks prepared with the use of crushed glass as fine aggregate. In this work, 25 × 25 × 285 mm mortar bar specimens were prepared using conventional wet-mixed and dry-mixed methods. Except for the control mortar bar, all the specimens were prepared by completely replacing river sand with different particle sizes of recycled glass. In addition, the influence of fly ash (PFA) and metakaolin (MK) content on the reduction of ASR expansion was also investigated. The flexural strength of the mortar bar specimens before and after they had been exposed to 1N NaOH solution was determined to complement the results of ASR expansion test. SEM was performed to examine the microstructure as well as nature of the cement binder-glass interfacial zone. The results reveal that ASR expansion reduced with reducing particle size of glass used. For the same given mix proportion, the dry-mixed method resulted in 44% less expansion when compared with the wet-mixed method. Both PFA and MK were demonstrated to be able to significantly reduce ASR expansion of the concrete glass blocks.
URI: http://hdl.handle.net/10397/22563
ISSN: 0950-0618
DOI: 10.1016/j.conbuildmat.2010.12.008
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

39
Last Week
0
Last month
1
Citations as of Sep 9, 2017

WEB OF SCIENCETM
Citations

36
Last Week
0
Last month
2
Citations as of Sep 21, 2017

Page view(s)

37
Last Week
1
Last month
Checked on Sep 17, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.