Mechanical and stress-strain behavior of basalt fiber reinforced rubberized recycled coarse aggregate concrete. (10th November 2020)

• Record Type: Journal Article
• Authors: Chen, Aijiu; Han, Xiaoyan; Chen, Meng; Wang, Xiaoyu; Wang, Zhihao; Guo, Tengteng
• Is Part Of: Construction & building materials. Volume 260(2020)
• Publication Date: 2020-11-10
• Subjects: Rubberized recycled concrete -- Basalt fibers -- Mechanical properties -- Uniaxial compression -- Stress-strain behavior -- Constitutive model; Building materials -- Periodicals; 624.18
• DOI: 10.1016/j.conbuildmat.2020.119888
• Languages: English
• ISSNs: 0950-0618

Abstract

Highlights: Basalt fiber reinforced rubberized recycled coarse aggregate concrete (BFRRC) is designed. Both the mechanical and stress-strain behaviors of BFRRC are investigated. The constitutive model of BFRRC is established in this paper. Abstract: Recycling scrap tyres and concrete as the alternatives of natural aggregates to produce rubberized recycled concretes will result in a considerable conservation of natural resources. The effects of recycled coarse aggregates, rubber particles and basalt fibers on mechanical and stress-strain behaviors of concrete are investigated. In addition, the failure patterns of the specimens under uniaxial compression are analyzed. The results indicate that the effects of recycled coarse aggregates, rubber particles and basalt fibers on the properties of concrete are significant. Compared with normal concrete, rubberized recycled concrete with 10% rubber particles and 40% recycled coarse aggregates has lower strength and better deformation performance. The effects of basalt fibers on the strength and deformation of rubberized recycled concrete are related to compositions and properties of concrete. Besides, the toughening effect of basalt fibers on rubberized recycled concrete is very obvious. A modified constitutive model is presented, considering the effects of recycled coarse aggregates, rubber particles and basalt fibers on the properties of concrete.