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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Durability of Recycled Aggregate Concrete: A Review
Author(s): A.M. Said, A. Ayad, E. Talebi and A.C. Ilagan
Publication: Special Publication
Appears on pages(s): 1-18
Keywords: Green construction; Recycled aggregate concrete; Recycled concrete aggregate; Sustainability
Abstract:The continuous consumption of natural aggregate in concrete production is steadily straining such natural resources. The need for a more sustainable solution has led to a serious consideration of using recycled concrete aggregate as a replacement to natural aggregate. Studies in the literature were conducted to determine the properties of recycled aggregate concrete. For non-structural applications, recycled aggregate concrete has been widely accepted in several countries mostly in Japan. However, further studies on its durability are still required. The lack of comprehensive standard guidelines for mixture proportion as well as the limited studies on its durability has hindered its wider implementation especially in structural applications. The studies performed on the durability of recycled aggregate concrete has been surveyed and compiled in this paper. The paper addresses issues pertaining to durability including the mixture design, permeability and water absorption, the resistance to alkali-silica reactions, reinforcement corrosion, abrasion, freeze-thaw resistance, and sulfate attack. Generally, a coarse aggregate replacement ratio of 20% to 50% did not negatively affect the performance of recycled aggregate concrete in many cases. The literature overview showed that recycled aggregate concrete performs satisfactorily under various conditions and has a comparable durability to natural aggregate concrete if designed properly.
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