Print Email Facebook Twitter Characterisation of recycled concrete aggregates from construction and demolition wastes Title Characterisation of recycled concrete aggregates from construction and demolition wastes Author van Rijswijk, Tom (TU Delft Civil Engineering and Geosciences) Contributor Bakker, Maarten (mentor) Gebremariam, Abraham (mentor) Hoogenboom, Pierre (mentor) Degree granting institution Delft University of Technology Date 2019-04-09 Abstract Construction and demolition waste form a significant problem in terms of environmental pollution and material depletion. Concrete, as part of construction and demolition waste, is already responsible for 9% of the total anthropogenic carbon dioxide emissions. Consequently, it is important to alleviate the environmental stress of concrete by replacing virgin aggregates and cement by recycled aggregates and liberated cement. This study determines how the properties of recycled aggregates and virgin (new) aggregates compare for using recycled aggregates in a new concrete mixture.Recycled aggregate properties are examined by performing a variety of experiments, namelywater absorption and specific gravity, Los Angeles abrasion, flakiness and shape index andcompressive strength. Each experiment describes a different characteristic of the aggregatescreating a clear picture of their properties. The properties of virgin aggregates have beenobtained from literature.In addition, a milling method has been examined as a possible new step in the recycling chainfor liberating cement paste from the fine recycled aggregates.Water absorption and interfacial transition zone formed problems for the recycled aggregates,but they show excellent properties in terms of compressive strength, resistance to abrasion,grain interlocking and shape characteristics.While very different from each other, recycled aggregates show very good properties whencompared to virgin aggregates giving them potential to be used in new concrete mixtures. Subject concreterecyclingend of lifecircular economyaggregates To reference this document use: http://resolver.tudelft.nl/uuid:cedb6b54-f32e-4e03-a0bf-af974b236d44 Part of collection Student theses Document type bachelor thesis Rights © 2019 Tom van Rijswijk Files PDF Bachelor_thesis_final.pdf 33.79 MB Close viewer /islandora/object/uuid:cedb6b54-f32e-4e03-a0bf-af974b236d44/datastream/OBJ/view