Effects of Old Aggregate on Concrete Strength

Abstract:

The basic characteristics of recycled coarse aggregate are completely tested. Crushed the waste concrete through artificial crushing, configured recycled concrete by reference to the mix proportion of ordinary concrete . Through experiments, recycled concrete and ordinary concrete basic properties were tested, the performance of recycled concrete with different coarse aggregate were compared, calculated the strength and amount of mold of recycled concrete; results showed that the basic properties of recycled coarse aggregate and natural aggregate existed certain differences. compared to the pebble-based recycled aggregate concrete strength can reach ordinary concrete strength, and when the new coarse aggregate and recycled coarse aggregate were the half, the strength of concrete was not high, the stress - strain curve and the ordinary concrete stress - strain curves were similar, destructive phenomenons of test cubes were close with ordinary concrete .

• Periodical: Advanced Materials Research (Volumes 1008-1009)
• Pages: 1352-1356
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1008-1009.1352
• Online since: August 2014
• Authors: Hui Lv, Chun Tao Wang
• Keywords: Building Material, Recycled Coarse Aggregate, Cube Compressive Strength, Recycled Concrete

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