Evaluation of Deterioration Law and Reliability of Concrete after Durability Improvement Based on Wiener Theory
Hongzhuang Shi , Fuyun Su , Hongxia Qiao , Lei Zhang , Yong Fu , Xiaosen Yang
Journal of Wuhan University of Technology Materials Science Edition ›› 2026, Vol. 41 ›› Issue (1) : 147 -161.
Evaluation of Deterioration Law and Reliability of Concrete after Durability Improvement Based on Wiener Theory
To study the durability of concrete in harsh environments in Northwest China, concrete was prepared with various durability-improving materials such as concrete anti-erosion inhibitor (SBT-TIA), acrylate polymer (AP), super absorbent resin (SAP). The erosion mode and internal deterioration mechanism under salt freeze-thaw cycle and dry-wet cycle were explored. The results show that the addition of enhancing materials can effectively improve the resistance of concrete to salt freezing and sulfate erosion: the relevant indexes of concrete added with X-AP and T-AP are improved after salt freeze-thaw cycles; concrete added with SBT-TIA shows optimal sulfate corrosion resistance; and concrete added with AP displays the best resistance to salt freezing. Microanalysis shows that the increase in the number of cycles decreases the generation of internal hydration products and defects in concrete mixed with enhancing materials and improves the related indexes. Based on the Wiener model analysis, the reliability of concrete with different lithologies and enhancing materials is improved, which may provide a reference for the application of manufactured sand concrete and enhancing materials in Northwest China, especially for the study of the improvement effects and mechanism of enhancing materials on the performance of concrete.
manufactured sand concrete / durability enhancement / enhancing materials / reliability analysis
| [1] |
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| [2] |
|
| [3] |
|
| [4] |
|
| [5] |
|
| [6] |
|
| [7] |
|
| [8] |
|
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
|
| [13] |
|
| [14] |
|
| [15] |
|
| [16] |
|
| [17] |
|
| [18] |
|
| [19] |
|
| [20] |
|
| [21] |
|
| [22] |
|
| [23] |
|
| [24] |
|
| [25] |
|
| [26] |
|
| [27] |
|
| [28] |
|
| [29] |
|
| [30] |
|
| [31] |
|
| [32] |
|
| [33] |
|
| [34] |
|
| [35] |
|
| [36] |
|
| [37] |
|
| [38] |
|
| [39] |
|
| [40] |
Ministry of Housing and Urban-Rural Development of the People’s Republic of China. Standard for Test Methods of Long-Term Performance and Durability of Ordinary Concrete, 2019GB/T50082-2009 |
| [41] |
|
| [42] |
|
| [43] |
|
| [44] |
|
| [45] |
|
| [46] |
|
| [47] |
|
| [48] |
|
| [49] |
|
| [50] |
|
| [51] |
|
| [52] |
|
Wuhan University of Technology and Springer-Verlag GmbH Germany, Part of Springer Nature
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