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The Role and Influence of Recycled Aggregate, in "Recycled Aggregate Concrete"

Title: The Role and Influence of Recycled Aggregate, in "Recycled Aggregate Concrete"
Author(s): Etxeberria
Paper category : conference
Book title: International RILEM Conference on the Use of Recycled Materials in Building and Structures
Editor(s): E. Vázquez, Ch. F. Hendriks and G.M.T. Janssen
Print-ISBN: 2-912143-52-7
e-ISBN: 2912143756
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 665 - 674
Total Pages: 10
Nb references: 11
Language: English

Abstract: In terms of composition, recycled aggregates, obtained from crushed waste concrete,
consist of original aggregates and adhered mortar. Two factors which need to be taken into
consideration in the use of these recycled materials in the production of new concrete is their
structural behaviour and durability. It is the percentage of recycled aggregate used, which
influences the structural behaviour of the new concrete. Also, durability of the recycled
aggregate concrete depends on the heterogeneity of the recycled particles. Hence it is
important to identify the mechanical, physical and chemical properties of the original coarse
aggregates, as well as the original fine aggregates present in adhered mortar, to understand
their suitability in the production of recycled concrete.
The research involved experiments to analyse the structural behaviour of recycled
aggregate concrete, using different percentages of recycled aggregate and varying web
reinforcement. Other studies included the alkali reactivity of fine aggregates present in
adhered mortar and its influence in durability.

Online publication: 2004-09-29
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143756.074

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