Thermal Stress Compensation of MgO Concrete in Construction of High Arch Dams in Cold Areas

Xiang Yang Jing; Xing Hong Liu; Xu Zhang

doi:10.4028/www.scientific.net/AMR.852.427

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 852Thermal Stress Compensation of MgO Concrete in...

Thermal Stress Compensation of MgO Concrete in Construction of High Arch Dams in Cold Areas

Abstract:

When mixed with the admixture MgO, the volume contraction deformation of mass concrete could be compensated, which is an effective way to solve the temperature cracking problems in construction of concrete projects. Taking an arch dam in China as an example, the thermal stress compensation characteristics of MgO concrete in cold areas are studied using the finite element method. Results indicate that the stress compensation of MgO concrete is significant inside the dam, and with a better effect along with a larger mixing amount of MgO in a certain range. But on the surface of the dam, the stress compensation of MgO concrete is not significant.

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Periodical:

Advanced Materials Research (Volume 852)

Pages:

427-431

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.852.427

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Online since:

January 2014

Authors:

Xiang Yang Jing, Xing Hong Liu, Xu Zhang

Keywords:

Arch Dam, Finite Element Method (FEM), MgO Concrete, Simulation, Stress Compensation

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