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Durability of Mortar Matrix Replaced with Recycled Fine Aggregates  

Kim, Jong-Pil (Daejin University)
Lee, Seung-Tae (Kunsan National University)
Jung, Ho-Seop (Korea institute of construction technology)
Park, Kwang-Pil (Daejin University)
Kim, Seong-Soo (Daejin University)
Publication Information
Resources Recycling / v.16, no.6, 2007 , pp. 20-27 More about this Journal
Abstract
This paper presents a detailed experimental study on the durability properties of mortar matrix made with two kind of recycled fine aggregates(RAA, RAB) and five replacement levels (0, 25, 40, 75 and 100) of the recycled fine aggregates as a partial replacement of natural fine aggregate (NA). The durability properties of mortar matrix was evaluated using compressive strength, chloride ion ingress, sulfate attack and carbonation. The test results indicated that the water absorption and Adhered mortar of the recycled fine aggregate was a major factor controlling durability properties. Hereafter, when using built recycled fine aggregate is expected, appropriate removal Adhered mortar and reasonable replacement ratio of recycled fine aggregates was 25% weight of cement are advised to apply to the concrete materials.
Keywords
Natural aggregate; Recycle aggregate; Fine aggregate; Durability; Adhered mortar;
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