Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6716554 | Construction and Building Materials | 2018 | 11 Pages |
Abstract
This paper presented an integrated computational-experimental approach for evaluating elastic modulus of cement paste corroded in brine solution on nanoscale. In the first place, the cured specimens were corroded in brine solution at room temperature for 90â¯days. Subsequently, the elastic moduli of 32 points of the corroded cement paste specimen were measured by nanoindentation test. Then, a three-dimensional nanoindentation model was established with finite element method and modified constitutive relation. The input parameters of the model were calibrated based on the test results and linear interpolation method. Finally, the difference between the simulation results and the experimental results was compared with good agreement. Therefore, the nanoindentation model established in this paper can predict the nanoindentation experiment well and the modified constitutive relation is effective.
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Physical Sciences and Engineering
Engineering
Civil and Structural Engineering
Authors
Yue Li, Guosheng Zhang, Zigeng Wang, Peng Wang, Zhongzheng Guan,