Memorias de investigación
Communications at congresses:
Gypsum composites with CDW as Raw Material
Year:2015

Research Areas
  • Construction materials

Information
Abstract
Europe generates huge amounts of construction and demolition waste (CDW) per year and less than 50% of these CDW is recycled. This is far from the objectives determined in the European Strategies for 2020 and aware of this situation, the European Countries are implementing national policies to prevent the waste that can be avoidable and to promote measures to increase recycling and recovering. In Spain, one of these measures has been the development of CDW recycling solutions for the manufacture of mortar, concrete, bricks and lightweight aggregates. However, there is still not enough information on the possibility of incorporating CDW materials in the manufacture of gypsum products. Therefore, the objective of this study is to improve this database by analysing the feasibility of incorporating two different CDW in a gypsum matrix: ceramic waste bricks (perforated brick and double hollow brick), and extruded polystyrene (XPS) waste. Results show that it is possible to incorporate up to 25% of ceramic waste and 4% of XPS waste over the weight of gypsum in a gypsum matrix. Furthermore, with the addition of ceramic waste an 8% of surface hardness increase and a 25% of capillary water absorption reduction can be obtained. On the other hand, with the addition of XPS, a 26% reduction of density and a 37% improvement of thermal conductivity can be obtained. As conclusion, it is feasible to use these materials in order to produce prefabricated gypsum and also as material for interior cladding walls.
International
Si
Congress
17th international Conference on Architectural, Civil and Environmental Engineering
960
Place
Stockholm, Sweden
Reviewers
Si
ISBN/ISSN
1307-6892
Start Date
13/07/2015
End Date
14/07/2015
From page
646
To page
650
International Science Index
Participants

Research Group, Departaments and Institutes related
  • Creador: Departamento: Construcciones Arquitectónicas y su Control