An Elastoplastic Damage Constitutive Model for Cementitious Materials under Wet-Dry Cyclic Sulfate Attack

Da Chen, Chen Du, Xingguo Feng and Feng Ouyang

Mathematical Problems in Engineering, 2013, vol. 2013, 1-7

Abstract:

The mechanical properties of cement mortars subjected to wet-dry cyclic sulfate attack were studied by the compression strength test. The results showed that the ultimate compressive strength increased with number of cycles at the initial stage. However, after a certain time, it started to decrease with further increases in the number of cycles. Moreover, the concentration of the sodium sulfate solution proved to be an important factor affecting the ultimate compressive strength. Based on continuum damage mechanics theory, an elastoplastic damage constitutive model is presented to describe the mechanical behavior of cementitious materials under compressive stress. The results obtained agree well with the experimentally observed elastic, plastic, and damage characteristics of cement mortars under compressive stress.

Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:562410

DOI: 10.1155/2013/562410

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