Estimation of Water Absorption Capacity of Hardened Concrete with Recycled Aggregate Based on Experimental Determination

Abstract:

Recycled construction and demolition waste, especially recycled concrete, is able to use as an aggregate for concrete. The high water absorption capacity (WA) of recycled aggregate has a negative impact of concrete mix workability and influences the water-cement ratio. This paper presents results of experimental measurement of WA of recycled aggregate and recycled concrete. Series of concrete samples with various replacement ratios of natural aggregate and recycled aggregate were prepared for this study. The main aim of this study is to analyze the influence of recycled aggregate WA, and mixture ratios on the WA of hardened concrete (HC). Regression model to estimate the WA of hardened concrete is presented.

• Periodical: Applied Mechanics and Materials (Volume 732)
• Pages: 411-414
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.732.411
• Online since: February 2015
• Authors: Tereza Pavlů*, Magdaléna Šefflová
• Keywords: Recycled Aggregate (RA), Recycled Concrete, Water Absorption Capacity

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