Characteristics of nanoclay and calcined nanoclay-cement nanomatrices by combination of QXDA and TGA techniques

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

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Citation

Hakamy, A.M.M and Shaikh, F.U.A. and Low, I.M. 2015. Characteristics of nanoclay and calcined nanoclay-cement nanomatrices by combination of QXDA and TGA techniques. International Journal of Advances in Mechanical and Civil Engineering. 2 (3): pp. 100-103.

Source Title

International journal of advances in mechanical and civil engineering

ISSN

2394-2827

School

Department of Physics and Astronomy

URI

http://hdl.handle.net/20.500.11937/25426

Collection

Curtin Research Publications

Abstract

The influence of nanoclay (NC) and calcined nanoclay (CNC) on the mechanical and thermal properties of cement nano-matrices presented. Calcined nanoclay is prepared by heating nanoclay (Cloisite 30B) at 900° C for 2h. Estimation of Ca(OH)2 content in the cement nanomatrix is studied by the combination of Quantitative X-ray Diffraction Analysis (QXDA) and thermogravimetry analysis (TGA) techniques. Results showed that the microstructure and compressive strength of the cement nano-matrices are improved as a result of NC and CNC addition. An optimum replacement of ordinary Portland cement with 1 wt% CNC is observed through decreased the porosity and increased compressive strength of cement nano-matrices. Cost-benefit analysis indicates that nanoparticles are expensive but from economic point of view nanoclay is used in very small amount (i.e. 1 wt. %) in cementitious materials. As a result nanoclay does not add any significant cost but improves the mechanical properties significantly.