ISSN: 1945-7553
CODEN: JTEVAB
Published Online: 1 August 2012
Page Count: 7

Using Disturbed State Concept to Predict the Stress–Strain Response of Concrete Attacked by Sulfate

Nie, Yanfeng
School of Materials Science and Engineering, Southeast Univ., Nanjing,

Qian, Chunxiang
School of Materials Science and Engineering, Southeast Univ., Nanjing,
Jiangsu Key Lab on Civil Engineering Materials, Nanjing,

(Received 23 March 2012; accepted 30 April 2012)

Abstract

The disturbed state concept (DSC) provides a general way for constitutive modeling of deforming materials. This paper presents the experimental and analytical results for the development of methodology for predicting the stress-strain response of concrete attacked by sulfate. Ultrasonic pulse velocity (UPV) is used to identify a function for disturbance (D). The elastoplastic model and simplified hydrostatic stress model are adopted for the definition of the relative intact state (RI) and fully adjusted state (FA), respectively. Thus, the stress–strain curve can be predicted using the DSC model based on nondestructive method. The comparison results show that the proposed constitutive model is satisfied with application in similar condition.

Keywords:
concrete, uniaxial compression, sulfate, disturbed state concept, stress–strain curve

Paper ID: JTE20120084
DOI: 10.1520/JTE20120084
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