Assessment of Resistance to Fragmentation of Crushed-Stone Aggregate for the Application in Road Engineering

Abstract:

A lot of research centres in the world deal with developing the reuse of waste technology. The processed waste is applied in many industries, especially in the infrastructure construction. The European standards allow to apply recycled materials in implementation of buildings and the road engineering. In most cases, the detailed classifications for recycled aggregates are the subject of domestic standards, in which this topic is studied and developed deeply (Germany, Austria). In Poland, at the stage of applying the recycled aggregate, contractors are forced to rely on German or Austrian guidelines. In many cases, the application of the recycled materials is based on the contractors’ experience or intuition. That is why each additional development expansion of the knowledge on the recycled aggregates is added value and is very helpful for designers and contractors. The paper presents the comparison of mechanical resistance to fragmentation in a Los Angeles abrasion machine of selected crushed-stone and recycled aggregates (crushed concrete rubble) from demolished road structures.

• Periodical: Materials Science Forum (Volume 923)
• Pages: 120-124
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.923.120
• Online since: May 2018
• Authors: Michał Babiak*, Adrianna Ratajczak, Maria Ratajczak, Szymon Węgliński
• Keywords: Crushed-Stone Aggregate, Recycled Aggregate, Resistance to Fragmentation by Los Angeles Test Method, Road Bases

References

[1] EN 13285:2010 Unbound mixtures. Specifications.

[2] WT-4:2010 Technical requirements. Unbound mixtures for national roads.

[3] B. Stefańczyk: Budownictwo ogólne tom 1. Materiały i wyroby budowlane, [General construction volume 1. Construction materials and products], Arkady (2015).

[4] A. M. Neville: Properties of Concrete, London (2012).

[5] Vademecum Technologa Betonu [Vademecum Concrete Technology], Górażdże, Chorula (2016).

[6] N. D. Oikonomou: Recycled Concrete Aggregates, Cement & Concrete Composites 27 (2005), p.315–318.

DOI: 10.1016/j.cemconcomp.2004.02.020

[7] Directive 2008/98/EC of the European Parliament and of the Council of 19 November 2008 on waste and repealing certain Directives.

[8] EN 1097-2:2010 Tests for mechanical and physical properties of aggregates – Part 2: Methods for the determination of resistance to fragmentation.