The Ductile Behavior of High Performance Concrete in Compression

Archives of civil engineering

A. P. FantilliCorresponding authorAssistant Professor, Department of Structural and Geotechnical Engineering, Politecnico di Torino, Corso Duca degli Abruzzi, 24-10129 Torino, ItalyEmailOther articles by this author:De Gruyter OnlineGoogle Scholar¹  Professor H. MihashiDepartment of Architecture and Building Science, Tohoku University, Sendai, JapanEmailOther articles by this author:De Gruyter OnlineGoogle Scholar²  Professor P. ValliniDepartment of Structural and Geotechnical Engineering, Politecnico di Torino, Torino, ItalyEmailOther articles by this author:De Gruyter OnlineGoogle Scholar³  Professor B. ChiaiaDepartment of Structural and Geotechnical Engineering, Politecnico di Torino, Torino, ItalyEmailOther articles by this author:De Gruyter OnlineGoogle Scholar³ 

[1] Assistant Professor, Department of Structural and Geotechnical Engineering, Politecnico di Torino, Corso Duca degli Abruzzi, 24-10129 Torino, Italy;Department of Architecture and Building Science, Tohoku University, Sendai, Japan;Department of Structural and Geotechnical Engineering, Politecnico di Torino, Torino, Italy

关键词: Keywords: High performance concrete;    Self-compacting concrete;    Normal vibrated concrete;    Confining pressure;    Triaxial tests;    Fracture toughness;   

DOI  :  10.2478/v.10169-010-0001-1

学科分类：建筑学

来源: Polska Akademia Nauk * Instytut Podstawowych Problemow Techniki / Polish Academy of Sciences, Institute of Fundamental Technological Research

【 摘 要 】

The ductility of High Performance Concrete (HPC) can develop both in tension and compression. This aspect is evidenced in the present paper by measuring the mechanical response of normal vibrated concrete (NC), self-compacting concrete (SC) and some HPCs cylindrical specimens under uniaxial and triaxial compression. The post-peak behaviour of these specimens is defined by a non-dimensional function that relates the inelastic displacement and the relative stress during softening. Both for NC and SC, the increase of the fracture toughness with the confinement stress is observed. Conversely, all the tested HPCs, even in absence of confinement, show practically the same ductility measured in normal and self-compacting concretes with a confining pressure. Thus, the presence of HPC in compressed columns is itself sufficient to create a sort of active distributed confinement.

【 授权许可】

Unknown