- Title
- The effect on masonry bond strength of short steel fibres in a brittle mortar composite
- Creator
- Alterman, Dariusz; Page, Adrian W.; Albatayneh, Aiman
- Relation
- 12th International Symposium on Brittle Matrix Composites (BMC). Proceedings of 12th International Symposium on Brittle Matrix Composites (BMC) (Polish Acad Sci, Inst Fundamental Technol Res, Warsaw, POLAND 23-24 September, 2019) p. 97-106
- Publisher
- Institute of Fundamental Technological Research
- Resource Type
- conference paper
- Date
- 2019
- Description
- This paper presents an extended version of previous study on masonry flexural bond strength [1]. The paper concentrates on the influence of the addition of short steel fibres to a brittle mortar on masonry bond and direct shear bond strength. Previous tests of fibre reinforced mortars have indicated that higher mortar tensile and flexural strengths can be achieved. The investigation extends this to the unit-mortar interface. Bond wrench tests to determine masonry bond strength were carried out in accordance with AS3700-2011. Since the Australian standard does not contain a shear strength test, triplet tests in accordance with European Standard EN1052-3 were used to determine the shear strength. Mortar-to-masonry bond is a critical component that affects not only the strength of the masonry construction but also its durability. While traditional mortar uses fine sand only, this investigation examines whether the addition of small steel fibres to the mortar mix increases the masonry shear and bond strength, especially for cored masonry units. To gain a greater understanding of the effects that the fibres may have on mortar properties, a range of variables were considered, including the extruded clay brick patterns (coring percentage), the proportion of fibres, the mortar water-cement ratio as well as the presence of lime. Image analysis techniques and microscopic examination were also conducted to examine failure surfaces as well as the mortar-brick interface to better understand the bond phenomenon.
- Subject
- image analysis technique; direct shear strength; bond strength; fibre reinforced mortar
- Identifier
- http://hdl.handle.net/1959.13/1460239
- Identifier
- uon:45904
- Language
- eng
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