Application of Base Force Element Method to Mesomechanics Analysis for Recycled Aggregate Concrete. (25th September 2013)

• Record Type: Journal Article
• Authors: Peng, Yijiang; Liu, Yinghua; Pu, Jiwei; Zhang, Lijuan
• Other Names: Cen Song Academic Editor.
• Is Part Of: Mathematical problems in engineering. Volume 2013(2013)
• Publication Date: 2013-09-25
• Subjects: Engineering mathematics -- Periodicals; 510.2462
• DOI: 10.1155/2013/292801
• Languages: English
• ISSNs: 1024-123X

Abstract

Abstract : The base force element method (BFEM) on potential energy principle is used to analyze recycled aggregate concrete (RAC) on mesolevel. The model of BFEM with triangular element is derived. The recycled aggregate concrete is taken as five-phase composites consisting of natural coarse aggregate, new mortar, new interfacial transition zone (ITZ), old mortar, and old ITZ on meso-level. The random aggregate model is used to simulate the mesostructure of recycled aggregate concrete. The mechanics properties of uniaxial compression and tension tests for RAC are simulated using the BFEM, respectively. The simulation results agree with the test results. This research method is a new way for investigating fracture mechanism and numerical simulation of mechanics properties for recycled aggregate concrete.