Nano Archive

Investigations on the preparation and mechanical properties of the nano-alumina reinforced cement composite

Li, Zhenhua and Wang, Huafeng and He, Shan and Lu, Yang and Wang, Miao (2006) Investigations on the preparation and mechanical properties of the nano-alumina reinforced cement composite. Materials Letters, 60 (3). 356 - 359.

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Official URL: http://www.sciencedirect.com/science/article/B6TX9...

Abstract

In order to investigate the effect of nano-alumina on the elastic modulus and compressive strength of cement composite, cylindrical specimens (Φ20 × 40 mm) with different volume fractions of nano-alumina at different curing days (3 days, 7 days, 28 days) were cast and tested. Based on experiment, the compressive strength and elastic modulus of mortars were all increased by incorporating nano-alumina into matrix. When the fraction of nano-alumina was 5%, the elastic modulus of composites increased by 143% at 28 days; when the fraction of nano-alumina was 7%, the compressive strength of composites increased by 30% at 7 days. The compactness of interfacial transition zone increased and porosity of cement decreased by incorporating nano-alumina into mortars, and as a result, the elastic modulus and compressive strength of mortar with nano-alumina increased.

Item Type:Article
Uncontrolled Keywords:Mortars; Nano-alumina; Elastic modulus; Compressive strength
Subjects:Material Science > Nanostructured materials
ID Code:6823
Deposited By:SPI
Deposited On:06 Feb 2010 11:38
Last Modified:06 Feb 2010 11:38

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