Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/32901
Title: Using artificial neural networks for predicting the elastic modulus of recycled aggregate concrete
Authors: Duan, ZH
Kou, SC
Poon, CS 
Issue Date: 2013
Source: Construction and building materials, 2013, v. 44, p. 524-532
Abstract: This paper is an extension of the previous study to further explore the applicability of artificial neural networks (ANNs) in modeling the elastic modulus (Ec) of recycled aggregate concrete (RAC). In this study, ANNs-I is firstly constructed by using 324 data sets collected from 21 international published literatures, which are randomly divided into three groups as the training, testing and validation sets, respectively. Then ANNs-II with 16 more data sets of the authors' own experimental results added to the learning database of ANNs-I is established to examine whether the performance of ANN can be further improved. The predicted results are compared with the experimentally determined results and that modeled by conventional regression analysis. The constructed ANNs-I and ANNs-II are also applied to other experimental data sets obtained from the authors and a third party published literature to test its applicability to recycled aggregate (RA) taken from different sources. The results show that the constructed ANN models can well predict the elastic modulus of concrete made with RA derived from different sources.
Keywords: Artificial neural networks
Elastic modulus
Recycled aggregate
Recycled aggregate concrete
Regression analysis
Publisher: Elsevier
Journal: Construction and building materials 
ISSN: 0950-0618
DOI: 10.1016/j.conbuildmat.2013.02.064
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