Mechanical Properties of Water-Permeable Concrete Using Coated Recycled Aggregates and Material for Performance Improvement

Abstract:

The mechanical properties of water-permeable concrete after mixing with coated recycled aggregates, silica fume, and PVA fiber were investigated in this study. Recycled aggregate was coated double-layer and then mixed as the coarse aggregate of water-permeable concrete. As a result, the void ratio, water-permeability coefficient and strength decreased, as compared to concrete with mixed crushed aggregates. When both silica fume and PVA fiber was added, the strength of the water-permeable concrete increased (compressive strength : by 4.3%, flexural strength : by 2.1 times). Also, the freeze and thaw resistance of the water-permeable concrete increased by approximately 44.15% compared to the plain concrete with no added reinforcing element.

• Periodical: Advanced Materials Research (Volume 831)
• Pages: 258-262
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.831.258
• Online since: December 2013
• Authors: Young Il Jang, Yun Yong Kim*, Wan Shin Park
• Keywords: Coating, Durability, Recycled Aggregate (RA), Strength, Water-Permeable Concrete

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