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A method for obtaining optimum packing of aggregates for concrete at the onset of flow
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Fire Engineering.
2017 (English)In: Proceedings of the 23rd Nordic Concrete Research Symposium, Oslo, Norway: Nordic Concrete Federation , 2017, 361-365 p.Conference paper, Published paper (Refereed)
Abstract [en]

Particle packing models have been studied extensively during past decades and led to development of some complex and relatively accurate predictions of packing of granular materials. While the models are capable of calculating the packing density for different volumetric share of constitutes, the concept of optimum packing remains unclear. The study aims to define optimum packing based on particle packing theory and excess water layer theory .The approach makes it also possible to calculate amount of paste that is required to put a concrete mixture at the onset of flow. Some pilot tests conducted in the laboratory showed good agreement with calculated data.

Place, publisher, year, edition, pages
Oslo, Norway: Nordic Concrete Federation , 2017. 361-365 p.
Keyword [en]
Excess layer theory, Optimum packing, Specific surface area, Zero-slump
National Category
Building Technologies Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-65692ISBN: 978-82-8208-056-9 (print)OAI: oai:DiVA.org:ltu-65692DiVA: diva2:1142025
Conference
23th Symposium on Nordic Concrete Research & Developement, Aalborg, Denmark, 21 - 23 August 2017
Projects
Concrete mix design
Available from: 2017-09-18 Created: 2017-09-18 Last updated: 2017-11-24Bibliographically approved

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  • Other locale
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Output format
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