Innovative Technologies and Logistical Solutions for the Reuse of Demolished Concrete in the Construction of Cement Concrete Pavements

Abstract:

The paper presents the results and conclusions of investigations aiming to encourage the use of recycled materials, namely recycled aggregates (RA) and recycled steel fibers (RSF), in the construction of durable, economic and environmental friendly rigid pavements. To minimize and limit the negative effect of RA on the mechanical properties of cement concrete pavements, the research program considered both, development of technical solutions to improve the performance characteristics of RA particle, and RSF disperse reinforcement of concrete mixtures. Roller compacted concrete (RCC) cylindrical and prismatic test specimens manufactured with natural aggregates (NA) and original/performance improved RA have been subjected to flexure and compressive testes to evaluate the influence and contribution of developed technologies. Finally, guidelines and considerations for the use of RA in RCC and plain cement concrete (PCC) pavements are drawn.

• Periodical: Advanced Engineering Forum (Volumes 8-9)
• Pages: 259-268
• DOI: https://doi.org/10.4028/www.scientific.net/AEF.8-9.259
• Online since: June 2013
• Authors: Marius Teodor Muscalu, Andrei Radu, Nicolae Taranu, Mihai Budescu, Irina Lungu
• Keywords: Demolition Solid Waste, Durable Rigid Pavements, Laboratory Study, Recycled Steel Fibers

References

[1] M.T. Muscalu, N. Taranu, Use of recycled materials in pavement construction, Proceedings of the 8th International Symposium Technology and innovation in transportation infrastructure, Highway and Bridge Engineering 2010, Iasi, Romania, (2010).

[2] ** Directive 2008/98/EC of the European Parliament and of the Council on waste, 19 November.

[3] T. Varlan, C. Zbarnea, C. Bulau, M.T. Muscalu, Construction on D.R.D.P. Iasi activity area of roller compacted concrete pavement structures disperse reinforced with recycled fibers derived from tire recycling, in Romanian, XIIIth National Roads and Bridge Congress, vol. II, Poiana Brasov, Romania, (2010).

[4] M.T. Muscalu, R. Andrei, M. Budescu, N. Taranu, Recycled aggregates and rigid pavement engineering, Journal of Applied Engineering Sciences, vol. 2(15), issue2_2012, (2012), 61-68.

[5] M.T. Muscalu, R. Andrei, Use of recycled aggregates in rigid pavement construction, The Bulletin of the Polytechnic Institute of Jassy, Construction Architecture Section, Tome LVII (LXI), Fasc. 2, (2011), 69-78.

[6] E. Musacchi, P. Iacobucci, Deliverable 1. 2 Classification of fibers from different mechanical treatments and the reasons for fiber balling, EcoLanes WP1 2nd Management Meeting, Antalya, Turkey, 5-7 October (2007).

[7] M.T. Muscalu, Accelerated load testing of rigid structures under simulated traffic, Proceedings of the 6th International Symposium Transportation Infrastructures New Developments, Highway and Bridge Engineering 2008, Iasi, Romania, (2008).

[8] M.T. Muscalu, Method for improvement of some performances of recycled aggregates by application of a wear, Patent request OSIM no A/00356 from 21. 05. (2012).

[9] M.T. Muscalu, Laboratory equipment for the evaluation of the density homogeneity of recycled aggregates, Patent request OSIM no A/00826 from 15. 11. (2012).

[10] T.C. Hansen, Recycling of Demolished Concrete and Masonry, Report of Technical Committee 37-DRC, RILEM Report 6, (1992).

[11] C.S. Poon, Z.H. Shui, L. Lam, H. Fok, S.C. Kou, Influence of moisture states of natural and recycled aggregates on the slump and compressive strength of concrete, Cement and Concrete Research, Vol. 34, Issue 1, (2004), 31–36.

DOI: 10.1016/s0008-8846(03)00186-8

[12] M.T. Muscalu, Mixing method for bond improvement of recycled aggregates surfaces to the new cement concrete matrix, Patent request OSIM no A/00138 from 08. 02. (2013).

[13] M.T. Muscalu, R. Andrei, M. Budescu, N. Taranu, E. Florescu, Use of recycled materials in the construction of roller compacted concrete (RCC) pavements, Advanced Materials Research Vol. 649, Trans Tech Publications, Switzerland, doi: 10. 4028/www. scientific. net/ AMR. 649. 262, (2013).

DOI: 10.4028/www.scientific.net/amr.649.262