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Bond Strength between Glass Fiber Fabrics and Low Water-to-Binder Ratio Mortar: Experimental Characterization
Aalto University, Helsinki, Finland.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.ORCID iD: 0000-0001-6287-2240
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.ORCID iD: 0000-0001-7279-6528
2018 (English)In: Advances in Civil Engineering / Hindawi, ISSN 1687-8086, E-ISSN 1687-8094, Vol. 2018, article id 8197039Article in journal (Refereed) Published
Abstract [en]

Full utilization of mechanical properties of glass fiber fabric-reinforced cement composites is very limited due to a low bond strength between fibers and the binder matrix. An experimental setup was developed and evaluated to correlate the mortar penetration depth with several key parameters. The studied parameters included fresh mortar properties, compressive and flexural strengths of mortar, the fabric/mortar bond strength, fabric pullout strength, and a single-lap shear strength. Results showed that an average penetration of mortar did not exceed 100 µm even at a higher water-to-binder ratio. The maximum particle size of the used fillers should be below an average spacing of single glass fibers, which in this case was less than 20 µm to avoid the sieving effect, preventing effective penetration. The pullout strength was strongly affected by the penetration depth, while the single-lap shear strength was also additionally affected by the mechanical properties of the mortar.

Place, publisher, year, edition, pages
Hindawi Publishing Corporation, 2018. Vol. 2018, article id 8197039
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-70881DOI: 10.1155/2018/8197039ISI: 000444863000001Scopus ID: 2-s2.0-85053683394OAI: oai:DiVA.org:ltu-70881DiVA, id: diva2:1250088
Note

Validerad;2018;Nivå 2;2018-09-18 (johcin)

Available from: 2018-09-21 Created: 2018-09-21 Last updated: 2018-10-03Bibliographically approved

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Cwirzen, AndrzejHabermehl-Cwirzen, Karin

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