Effect of calcined nanoclay on microstructural and mechanical properties of chemically treated hemp fabric-reinforced cement nanocomposites

Hakamy, Ahmad Magbul M; Shaikh, Faiz; Low, It Meng

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Authors

Hakamy, Ahmad Magbul M

Shaikh, Faiz

Low, It Meng

Date

2015

Type

Journal Article

Metadata

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Citation

Hakamy, A.M.M and Shaikh, F. and Low, I.M. 2015. Effect of calcined nanoclay on microstructural and mechanical properties of chemically treated hemp fabric-reinforced cement nanocomposites. Construction and Building Materials. 95: pp. 882-891.

Source Title

Construction and Building Materials

ISSN

0950-0618

School

Department of Physics and Astronomy

URI

http://hdl.handle.net/20.500.11937/10889

Collection

Curtin Research Publications

Abstract

The influence of calcined nanoclay (CNC) and chemical treatment on the microstructure and mechanical properties of treated hemp fabric-reinforced cement nanocomposites has been investigated. The optimum hemp fabric content for these nanocomposites is 6.9 wt% (i.e. 6 fabric layers). Alkali-treated hemp fabric-reinforced cement composites exhibit the highest flexural strength when compared to their non-treated counterparts. In addition, mechanical properties are improved as a result of CNC addition. An optimum replacement of ordinary Portland cement with 1 wt% CNC is observed through reduced porosity and increased density, flexural strength and fracture toughness in treated hemp fabric-reinforced nanocomposite. It is shown that CNC behaves not only as a filler to improve the microstructure, but also as the activator to facilitate the pozzolanic reaction and thus improved the adhesion between the treated hemp fabric and the matrix.