Interface pullout properties of macrosynthetic fibres in latex modified cement based nanosilica and silica fume composites. (May 2014)

• Record Type: Journal Article
• Authors: Oh, R. O.; Park, C. G.
• Is Part Of: Materials research innovations. Volume 18:Number 2(2014)
• Page Start: 220
• Page End: 224
• Publication Date: 2014-05
• Subjects: Materials -- Research -- Periodicals; Matériaux -- Recherche -- Périodiques; 620.1105
• DOI: 10.1179/1432891714Z.000000000573
• Languages: English
• ISSNs: 1432-8917

Abstract

<abstract> <title> <x content-type="archive" xml:space="preserve">Abstract</x> </title> <p>In this study, the bond properties between macrosynthetic fibres and latex polymer modified cement composites (LMCCs) were evaluated at different nanosilica and silica fume (microsilica) contents. The bond tests were evaluated according to Japan Concrete Institute SF-8, in which the nanosilica and silica fume contents in the cement were set to 0, 2, 4, 6 8, or 10%, based on cement weights. The addition of nanosilica and silica fume significantly influenced the bond properties between macrosynthetic fibres and LMCCs. Both bond strength and interface toughness improved with increasing silica fume content up to 10%. Both bond strength and interface toughness increased with nanosilica content up to 6% and then decreased with nanosilica content of 8% or more. This result was confirmed by observing an increase in scratching due to friction forces. This study was validated using microstructural analysis of torn macrosynthetic fibres after the bond tests.</p> </abstract>