Evaluation for Expansive Strain of Degraded Mortar with Damage Mechanics Model

Kiyohito Yamamoto; Akira Kobayashi

doi:10.4028/www.scientific.net/KEM.452-453.193

Paper Titles

Self-Oscillation Cavity Design and Flow Field Analysis of Pipeline Supercharger
p.177

Microbiological Influenced Corrosion Behavior of Full-Coated and Nicked-Coated Specimens
p.181

Numerical Investigation of Penetration Performance of Segmented Rod Projectiles with Various Connectors
p.185

Evaluation on Debonding along the Interface of Reinforced Concrete at Elevated Temperature
p.189

Evaluation for Expansive Strain of Degraded Mortar with Damage Mechanics Model
p.193

Analysis on Fire Resistance of Reinforced Concrete Beams Base on the Failure Probability
p.197

Comparison between Fatigue Life of Autofrettage and Nonautofrettage Cylinders Using Stress Intensity Factor (K_Ι)
p.201

Study on Mode I Quasi-Static Growing Crack Field in the Pressure-Sensitive Dilatant Material
p.205

The Approach on Making Empirical Earthquake Damage Matrix Complete Using Beta Distribution
p.209

HomeKey Engineering MaterialsKey Engineering Materials Vols. 452-453Evaluation for Expansive Strain of Degraded Mortar...

Evaluation for Expansive Strain of Degraded Mortar with Damage Mechanics Model

Abstract:

In this study, specimens were prepared by mixing expanded polystyrene (EPS) beads with mortar to simulate degradation, and sound specimens include no beads. Measurement of acoustic emission (AE) was performed using an AE transducer. The changes in AE behavior with increase in strain were measured for a uniaxial compression test and a splitting test. The behaviors were investigated in comparison to the change in the damage variable. The AE parameters (rise time, reverberation frequency and average signal level (ASL) ) were evaluated by the average every ten seconds.