RT Journal Article
T1 Pre-normative research on the use of mixed recycled aggregates in unbound road sections
A1 Vegas, I.
A1 Ibañez, J. A.
A1 Lisbona, A.
A1 Sáez De Cortazar, A.
A1 Frías, M.
AB This paper presents and discusses the results arising from a pre-normative study aimed at determining the physical, chemical and mineralogical characteristics of mixed recycled aggregates produced from the treatment of mixed rubble for use in unbound structural layers of road. The results of this research show that the combined presence of concrete and ceramic materials induces pozzolanic reactions, which contribute to an increase in the bearing capacity of the compacted mixed recycled aggregate. From an analysis of their chemical characteristics, it can be inferred that the total sulphur compound content, the gypsum content and soluble salt contents can be regulated with reference to the water soluble sulphates test, given the high correlation that exists between those parameters. Generally, mixed recycled aggregates with ceramic material contents below 35%, organic matter contents below 0.8% and water soluble sulphate contents below 0.4% constitute a granular material that is technically feasible for use in unbound structural road sections.
SN 0950-0618
YR 2011
FD 2011-05
LK https://hdl.handle.net/11556/4275
UL https://hdl.handle.net/11556/4275
LA eng
NO Vegas , I , Ibañez , J A , Lisbona , A , Sáez De Cortazar , A & Frías , M 2011 , ' Pre-normative research on the use of mixed recycled aggregates in unbound road sections ' , Construction and Building Materials , vol. 25 , no. 5 , pp. 2674-2682 . https://doi.org/10.1016/j.conbuildmat.2010.12.018
NO The authors of this research wish to thank IHOBE (Public Environmental Management Body of the Basque Government) for funding the research and for the coordination work carried out with the Departments of Transport and Public Works of the Basque Government and Local Councils.
DS TECNALIA Publications
RD 26 jul 2024