Relationship between Compressive Strength and Young's Modulus of Cement Paste with Recycled Concrete Powder

Abstract:

This article deals with utilization of recycled concrete in form of high-speed milled powder into cement based materials. Recycled concrete powder in that form is used as microfiller and cement replacement. This article contains results of mechanical properties of the cement pastes with different amount of recycled concrete powder. The mechanical properties as the compressive strength, flexural strength, dynamic Young's and share moduli are observed during 409 days. According to results can be assumed that recycled concrete powder can be used as microfiller and cement replacement under 30 wt. % of total amount. Especially the results of compressive strength are comparable with reference sample. But there are some abnormalities in long term development of the strength that need to be explained.

• Periodical: Key Engineering Materials (Volume 722)
• Pages: 254-259
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.722.254
• Online since: December 2016
• Authors: Jaroslav Topič*, Jan Trejbal, Tomáš Plachý, Zdeněk Prošek
• Keywords: Cement Replacement, Mechanical Properties, Recycled Concrete, Recycled Concrete Fines, Recycled Concrete Powder

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