Experimental Study on Stress-Strain Relationship of New-Old Concrete

Jian Yin; Yi Jin Li; Xiong Zhang; Shi Qiong Zhou

doi:10.4028/www.scientific.net/KEM.302-303.536

Paper Titles

Strength of Roller Compacted Concrete
p.508

Study on Distribution Feature of Fracture Toughness of Interface between Coarse Aggregate and Hardened Cement Mortar in Concrete
p.514

Static Properties of Plain Reactive Powder Concrete Beams
p.521

Pore Structure and Chloride Ion Transport Mechanisms in Concrete
p.528

Experimental Study on Stress-Strain Relationship of New-Old Concrete
p.536

Properties and Microstructure of the New Phosphate Bonded Magnesia Cement
p.543

Effects of Styrene-Acrylate Emulsion on the Damping Ability and Hydration of Cement Matrix
p.550

Static Loading Investigation on Well Cover of Reactive Powder Concrete
p.556

Study on Strength and Bond Characteristics of GGBS Concrete
p.561

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Experimental Study on Stress-Strain Relationship of New-Old Concrete

Abstract:

In this paper, full-range compression tests were conducted on prisms of Old concrete, New-Old concrete and High-Performance Rapid Repair Concrete (HPRRC) prisms The complete stress-strain curve of HPRRC incorporating PFAC (pulverized fly ash composite), Old concrete and New-Old concrete were obtained and compared with each other. The essential uniform deformation capacity of three kinds of concrete was verified with the experimental results. At the same time, the unified numerical expressions of the compressive complete stress-strain curves of the three kinds of concrete are put forward. The theoretical curves from calculation are in good agreement with the experimental curves.