Effects of two types of waste wood species on the hydration characteristic of Portland cement

Dong, Zhiqiang and Yu, Youming and Song, Pingan and Ma, Lingfei and Lu, Fengzhu (2016) Effects of two types of waste wood species on the hydration characteristic of Portland cement. Journal of Advanced Concrete Technology, 14 (1). pp. 13-20. ISSN 1346-8014

Abstract

Despite much work on wood-cement composites, effects of wood species on the hydration of cements remain unclear until now. Thus, we herein investigated systematically effects of two typical wood species wastes on the hydration of Portland cement in this work. It was found that adding the poplar flour prominently affects the formation of the calcium silicate hydrate gel (C-S-H gel) delaying the hydration process, while the Chinese fir flour hardly retards the process due to different components. Compared with the neat cement, addition of both wood flours makes it easier to generate the ettringite. Besides, another important hydration product, calcium hydroxide Ca(OH)2, requires much longer time to form in the presence of both wood flours during hydration relative to the neat cement, e.g. nearly double time for the poplar-filled cement system. The findings provide useful information for extending the potential application of wood flours waste in cement composites.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 12 Jul 2017 02:48
Last Modified: 24 Jul 2017 05:52
Uncontrolled Keywords: Cement; hydration; cement composites;
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090503 Construction Materials
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.3151/jact.14.13
URI: http://eprints.usq.edu.au/id/eprint/32706

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