Excellence in Research and Innovation for Humanity

International Science Index


Select areas to restrict search in scientific publication database:
10008044
Recycled Aggregates from Construction and Demolition Waste in the Production of Concrete Blocks
Abstract:
The construction industry generates large amounts of waste, usually mixed, which can be composed of different origin materials, most of them catalogued as non-hazardous. The European Union targets for this waste for 2020 have been already achieved by the UK, but it is mainly developed in downcycling processes (backfilling) whereas upcycling (such as recycle in new concrete batches) still keeps at a low percentage. The aim of this paper is to explore further in the use of recycled aggregates from construction and demolition waste (CDW) in concrete mixes so as to improve upcycling. A review of most recent research and legislation applied in the UK is developed regarding the production of concrete blocks. As a case study, initial tests were developed with a CDW recycled aggregate sample from a CDW plant in Swansea. Composition by visual inspection and sieving tests of two samples were developed and compared to original aggregates. More than 70% was formed by soil waste from excavation, and the rest was a mix of waste from mortar, concrete, and ceramics with small traces of plaster, glass and organic matter. Two concrete mixes were made with 80% replacement of recycled aggregates and different water/cement ratio. Tests were carried out for slump, absorption, density and compression strength. The results were compared to a reference sample and showed a substantial reduction of quality in both mixes. Despite that, the discussion brings to identify different aspects to solve, such as heterogeneity or composition, and analyze them for the successful use of these recycled aggregates in the production of concrete blocks. The conclusions obtained can help increase upcycling processes ratio with mixed CDW as recycled aggregates in concrete mixes.
Digital Article Identifier (DAI):

References:

[1] N Lawson, I Douglas, S Garvin, C McGrath, D Manning, J Vetterlein “Recycling Construction and Demolition Wastes – A UK Perspective”, Environmental Management and Health, 12, 2, 2001, pp 146-157.
[2] European Parliament and the Council of the European Union, Directive 2008/98/EC on Waste, Official Journal of the European Union, Strasbourg, 19th November 2008, L 312/3-30.
[3] CIRIA, The Reclaimed and Recycled Construction Materials Handbook, Construction Industry Research and Information Association, London, 1999.
[4] C Hoffmann, S Schubert, A Leeman, M Motavalli “Recycled Concrete and Mixed Rubble as Aggregates: Influence of variations in Composition on the Concrete Properties and their Use as Structural Material” Construction and Building Materials, 35, October 2012, pp. 701-709.
[5] A Rao, K N Jha, S Misra, “Use of Aggregates from Recycled Construction and Demolition Waste in Concrete” Resources, Conservation and Recycling, 50, Elsevier, 2007, pp. 71-81.
[6] RILEM TC 121-DRG “Specifications for Concrete with Recycled Aggregates” Materials and Structures 27, 173, RILEM, 1994, pp. 557-559.
[7] British Standard Institution, BS 8500-2:2015+A1:2016 Concrete – Complementary British Standard to BS EN 206. Part 2: Specification for constituent materials and concrete, BSI Standards Ltd, 2016.
[8] Spanish Parliament, Royal Decree 1237/2008, 18th July, for which the Instruction for Structural Concrete is (EHE 08) is approved, BOE 203, 22nd August 2008, pp. 35176-35178.
[9] Etxeberria, “The Role and Influence of Recycled Aggregate, in Recycled Aggregate Concrete” International RILEM Conference on the Use of Recycled Materials in Building and Structures, RILEM Publications SARL, Ed. E Vazquez, Ch F Hendriks and G M T Janssen, 2004, pp. 665-674.
[10] M. Etxeberria, E. Vazquez, A. Mari “Microstructure Analysis of Hardened Recycled Aggregate Concrete” Magazine of Concrete Research 58, 10, December, 2006, pp. 683-690.
[11] M. Etxeberria, E. Vazquez, A. Mari, M. Barra “Influence of amount of recycled coarse aggregates and production process on properties of recycled aggregate concrete” Cement and Concrete Research, 37, 2007, pp. 735-742.
[12] S. Shahidan, M. A. M. Azmi, K. Kupusamy, S S M Zuki, N Ali, “Utilizing Construction and Demolition (C&D) Waste as Recycled Aggregates (RA) in Concrete” Procedia Engineering, 174, Elsevier, 2017, pp. 1028-1035.
[13] R. Kumar, “Influence of Recycled Coarse Aggregate Derived from Construction and Demolition Waste (CDW) on Abrasion Resistance of Pavement Concrete” Construction and Building Materials, 142, Elsevier, 2017, pp 248-255.
[14] F. M. Khalaf, A. S. DeVenny “Recycling of Demolished Masonry Rubble as Coarse Aggregate in Concrete: Review” Journal of Materials in Civil Engineering, 16, issue 4, August, 2004.
[15] A. R. Khaloo “Properties of concrete using crushed clinker brick as coarse aggregate” ACI Materials Journal, 91,2 1994, pp. 401-407.
[16] M Barra de Oliveira, E Vázquez “The influence of Retained Moisture in Aggregates from Recycling on the Properties of New Hardened Concrete” Waste Management, 16, 1-3, 1996, pp. 113-117.
[17] M. Zakaira, J. G. Cabrera “Performance and Durability of Concrete Made with Demolition Waste and Artificial Fly Ash-Clay Aggregates” Waste Management, 16, 1-3, 1996, pp. 151-158.
[18] A. Mueller, A. Schnell, K Ruebner “The Manufacture of lightweight aggregates from Recycled Masonry Rubble” Construction and Building Materials, 98, November 2015, pp. 376-387.
[19] R. V. Silva, J de Brito, R K Dhir “Properties and Composition or Recycled Aggregates from Construction and Demolition Waste” Construction and Building Materials, 65, 2014, pp 201-217.
[20] W Jin, C Meyer, S Baxter “Glasscrete”-Concrete with Glass Aggregate” ACI Materials Journal, March/April 2000, pp 208-213.
[21] T. C. Hansen, Recycling of Demolished Concrete and Masonry, RILEM Report of Technical Committee 37-DRC, Taylor and Francis, 1992.
[22] Environment Agency & WRAP, Quality Protocol. Aggregates from inert waste, Defra, Welsh Government and NIEA, UK, October 2013.
[23] Concrete Block Association, Aggregate Concrete Blocks. Aggregate Block Sustinability, CBA, UK, February 2013.
[24] V. W. Y. Tam, K. Wang, C. M. Tam “Assessing relationships among properties of demolished concrete, recycled aggregate and recycled aggregate concrete using regression analysis”, Journal of Hazardous Materials, 152, 2, April 2008, pp. 703-714.
[25] B. Monalisa, S. K. Bhattacharyya, A. K. Minocha, R. Deoliya, S. Maiti “Recycled Aggregate from C&D waste & its Use in Concrete – A Breakthrough towards Sustainability in Construction Sector: A review” Construction and Building Materials, 68, October 2014, pp 501-516.
Vol:12 No:08 2018Vol:12 No:07 2018Vol:12 No:06 2018Vol:12 No:05 2018Vol:12 No:04 2018Vol:12 No:03 2018Vol:12 No:02 2018Vol:12 No:01 2018
Vol:11 No:12 2017Vol:11 No:11 2017Vol:11 No:10 2017Vol:11 No:09 2017Vol:11 No:08 2017Vol:11 No:07 2017Vol:11 No:06 2017Vol:11 No:05 2017Vol:11 No:04 2017Vol:11 No:03 2017Vol:11 No:02 2017Vol:11 No:01 2017
Vol:10 No:12 2016Vol:10 No:11 2016Vol:10 No:10 2016Vol:10 No:09 2016Vol:10 No:08 2016Vol:10 No:07 2016Vol:10 No:06 2016Vol:10 No:05 2016Vol:10 No:04 2016Vol:10 No:03 2016Vol:10 No:02 2016Vol:10 No:01 2016
Vol:9 No:12 2015Vol:9 No:11 2015Vol:9 No:10 2015Vol:9 No:09 2015Vol:9 No:08 2015Vol:9 No:07 2015Vol:9 No:06 2015Vol:9 No:05 2015Vol:9 No:04 2015Vol:9 No:03 2015Vol:9 No:02 2015Vol:9 No:01 2015
Vol:8 No:12 2014Vol:8 No:11 2014Vol:8 No:10 2014Vol:8 No:09 2014Vol:8 No:08 2014Vol:8 No:07 2014Vol:8 No:06 2014Vol:8 No:05 2014Vol:8 No:04 2014Vol:8 No:03 2014Vol:8 No:02 2014Vol:8 No:01 2014
Vol:7 No:12 2013Vol:7 No:11 2013Vol:7 No:10 2013Vol:7 No:09 2013Vol:7 No:08 2013Vol:7 No:07 2013Vol:7 No:06 2013Vol:7 No:05 2013Vol:7 No:04 2013Vol:7 No:03 2013Vol:7 No:02 2013Vol:7 No:01 2013
Vol:6 No:12 2012Vol:6 No:11 2012Vol:6 No:10 2012Vol:6 No:09 2012Vol:6 No:08 2012Vol:6 No:07 2012Vol:6 No:06 2012Vol:6 No:05 2012Vol:6 No:04 2012Vol:6 No:03 2012Vol:6 No:02 2012Vol:6 No:01 2012
Vol:5 No:12 2011Vol:5 No:11 2011Vol:5 No:10 2011Vol:5 No:09 2011Vol:5 No:08 2011Vol:5 No:07 2011Vol:5 No:06 2011Vol:5 No:05 2011Vol:5 No:04 2011Vol:5 No:03 2011Vol:5 No:02 2011Vol:5 No:01 2011
Vol:4 No:12 2010Vol:4 No:11 2010Vol:4 No:10 2010Vol:4 No:09 2010Vol:4 No:08 2010Vol:4 No:07 2010Vol:4 No:06 2010Vol:4 No:05 2010Vol:4 No:04 2010Vol:4 No:03 2010Vol:4 No:02 2010Vol:4 No:01 2010
Vol:3 No:12 2009Vol:3 No:11 2009Vol:3 No:10 2009Vol:3 No:09 2009Vol:3 No:08 2009Vol:3 No:07 2009Vol:3 No:06 2009Vol:3 No:05 2009Vol:3 No:04 2009Vol:3 No:03 2009Vol:3 No:02 2009Vol:3 No:01 2009
Vol:2 No:12 2008Vol:2 No:11 2008Vol:2 No:10 2008Vol:2 No:09 2008Vol:2 No:08 2008Vol:2 No:07 2008Vol:2 No:06 2008Vol:2 No:05 2008Vol:2 No:04 2008Vol:2 No:03 2008Vol:2 No:02 2008Vol:2 No:01 2008
Vol:1 No:12 2007Vol:1 No:11 2007Vol:1 No:10 2007Vol:1 No:09 2007Vol:1 No:08 2007Vol:1 No:07 2007Vol:1 No:06 2007Vol:1 No:05 2007Vol:1 No:04 2007Vol:1 No:03 2007Vol:1 No:02 2007Vol:1 No:01 2007