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Stress-strain relationship of cement mortar under triaxial compression
https://orcid.org/0000-0002-5400-5988
Highlights New stress-strain model for cement mortar under triaxial stress state is presented. The stress-strain model parameters are developed using the experimental data. The developed model can be used to analytically or numerically predict the performance of cement mortar subjected to the various stress states.
Abstract This paper presents a study on the stress-strain relationship of cement mortar under triaxial stress state. The influence of confining pressure on peak-stress, peak-strain, volume change, modulus of elasticity, and Poisson’s ratio were studied using experimental results and data from limited studies in the literature. Cement mortar samples having compressive strengths of 38 MPa and 45 MPa were tested under four levels of confining pressures (i.e., 0, 5, 10, and 15 MPa) and a stress-strain model for confined cement mortar was subsequently developed. It has been shown that the model has good agreement with both the experimental results. The results not only show that confinement significantly improves the strength and ductility of the cement mortar samples, but also reveal a linear relationship between the observed lateral and axial strain. In this regard, the mathematical relationship for confined cement mortar was developed as a function of the stress and strain parameters of the unconfined state and a new linear relationship between modulus of elasticity, Poisson’s ratio and lateral stress is proposed.
Stress-strain relationship of cement mortar under triaxial compression
https://orcid.org/0000-0002-5400-5988
Highlights New stress-strain model for cement mortar under triaxial stress state is presented. The stress-strain model parameters are developed using the experimental data. The developed model can be used to analytically or numerically predict the performance of cement mortar subjected to the various stress states.
Abstract This paper presents a study on the stress-strain relationship of cement mortar under triaxial stress state. The influence of confining pressure on peak-stress, peak-strain, volume change, modulus of elasticity, and Poisson’s ratio were studied using experimental results and data from limited studies in the literature. Cement mortar samples having compressive strengths of 38 MPa and 45 MPa were tested under four levels of confining pressures (i.e., 0, 5, 10, and 15 MPa) and a stress-strain model for confined cement mortar was subsequently developed. It has been shown that the model has good agreement with both the experimental results. The results not only show that confinement significantly improves the strength and ductility of the cement mortar samples, but also reveal a linear relationship between the observed lateral and axial strain. In this regard, the mathematical relationship for confined cement mortar was developed as a function of the stress and strain parameters of the unconfined state and a new linear relationship between modulus of elasticity, Poisson’s ratio and lateral stress is proposed.
Stress-strain relationship of cement mortar under triaxial compression
https://orcid.org/0000-0002-5400-5988
Highlights New stress-strain model for cement mortar under triaxial stress state is presented. The stress-strain model parameters are developed using the experimental data. The developed model can be used to analytically or numerically predict the performance of cement mortar subjected to the various stress states.
Abstract This paper presents a study on the stress-strain relationship of cement mortar under triaxial stress state. The influence of confining pressure on peak-stress, peak-strain, volume change, modulus of elasticity, and Poisson’s ratio were studied using experimental results and data from limited studies in the literature. Cement mortar samples having compressive strengths of 38 MPa and 45 MPa were tested under four levels of confining pressures (i.e., 0, 5, 10, and 15 MPa) and a stress-strain model for confined cement mortar was subsequently developed. It has been shown that the model has good agreement with both the experimental results. The results not only show that confinement significantly improves the strength and ductility of the cement mortar samples, but also reveal a linear relationship between the observed lateral and axial strain. In this regard, the mathematical relationship for confined cement mortar was developed as a function of the stress and strain parameters of the unconfined state and a new linear relationship between modulus of elasticity, Poisson’s ratio and lateral stress is proposed.
Stress-strain relationship of cement mortar under triaxial compression
Kohees, Mithaq (author) / Sanjayan, Jay (author) / Rajeev, Pathmanathan (author)
Construction and Building Materials ; 220 ; 456-463
2019-05-23
8 pages
Article (Journal)
Electronic Resource
English
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