Influence of Mix Proportions on Water Absorption of RCA Concretes

Abstract:

The subject of the work is to develop probabilistic models defining the water absorption of concretes made ​​with the use of recycled aggregate (RCA). For the study 16 series of concrete mixtures were made with a 50 mass% share of recycled aggregate in the whole amount of coarse aggregate. The analysis of test results aimed at formulating a relationship between water absorption value and selected parameters of the composition of concretes. The objective was to find a model giving the best fit between calculated values and test results. Formulated models were then used in probabilistic modeling absorption using a Monte Carlo simulation. The results indicate a good agreement of the mean values of water absorption and possibility of good fitting of the standard deviation if an additional summand is introduced into the model.

• Periodical: Key Engineering Materials (Volume 722)
• Pages: 187-194
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.722.187
• Online since: December 2016
• Authors: Roman Jaskulski*, Paweł Las, Wojciech Kubissa
• Keywords: Monte Carlo Simulation, Probabilistic Modelling, Recycled Concrete Aggregate, Water Absorption

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