A mild alkali treated jute fibre controlling the hydration behaviour of greener cement paste

Title
A mild alkali treated jute fibre controlling the hydration behaviour of greener cement paste
Authors
조병완
Keywords
MECHANICAL-PROPERTIES; PORTLAND-CEMENT; REINFORCEMENT; COMPOSITES; MODEL; SUPERPLASTICIZERS
Issue Date
2015-01
Publisher
NATURE PUBLISHING GROUP
Citation
SCIENTIFIC REPORTS, v. 5, Page. 1-8
Abstract
To reduce the antagonistic effect of jute fibre on the setting and hydration of jute reinforced cement, modified jute fibre reinforcement would be a unique approach. The present investigation deals with the effectiveness of mild alkali treated (0.5%) jute fibre on the setting and hydration behaviour of cement. Setting time measurement, hydration test and analytical characterizations of the hardened samples (viz., FTIR, XRD, DSC, TGA, and free lime estimation) were used to evaluate the effect of alkali treated jute fibre. From the hydration test, the time (t) required to reach maximum temperature for the hydration of control cement sample is estimated to be 860 min, whilst the time (t) is measured to be 1040 min for the hydration of a raw jute reinforced cement sample. However, the time (t) is estimated to be 1020 min for the hydration of an alkali treated jute reinforced cement sample. Additionally, from the analytical characterizations, it is determined that fibre-cement compatibility is increased and hydration delaying effect is minimized by using alkali treated jute fibre as fibre reinforcement. Based on the analyses, a model has been proposed to explain the setting and hydration behaviour of alkali treated jute fibre reinforced cement composite.
URI
http://www.nature.com/articles/srep07837http://hdl.handle.net/20.500.11754/22086
ISSN
2045-2322
DOI
http://dx.doi.org/10.1038/srep07837
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ETC
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