Tian, Chong-ming and He, Biao and Ye, Fei and Wang, Jian and Song, Gui-feng (2022) Using a decision-making approach to evaluate the effect of accelerators on calcium leaching of sprayed concrete. Engineering Failure Analysis, 138. ISSN 1350-6307, DOI https://doi.org/10.1016/j.engfailanal.2022.106349.
Full text not available from this repository.Abstract
The present research aims to figure out the impact of setting accelerators on calcium leaching utilizing a hybrid decision-making method termed entropy weight - technique for order preference by similarity to an ideal solution (EW-TOPSIS). To fulfill this objective, a model test device was developed to carry out the experiment of calcium leaching in sprayed concrete. Three different types of setting accelerators were considered as the control variables in the experiment. Then, Ca2+ ions concentration, pH value, and flow of drainage solution were considered as indicators to evaluate the effect of each setting accelerator on calcium leaching. Meanwhile, the relationship between the three indicators was analyzed using the response surface method (RSM). Findings showed that relatively high dosing of setting accelerators had an inhibitory effect on calcium leaching of sprayed concrete. Additionally, the environment with a high pH value is more potential to experience calcium leaching.
| Item Type: | Article |
|---|---|
| Funders: | National Natural Science Foundation of China (NSFC) [Grant No: 51878060], Fundamental Research Funds for the Central Universities [Grant No: 300102212706], Project of Yunnan Provincial Department of Transportation |
| Uncontrolled Keywords: | Sprayed concrete; Setting accelerators; Calcium leaching; Factor analysis |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Engineering > Department of Civil Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 12 Oct 2023 07:15 |
| Last Modified: | 12 Oct 2023 07:15 |
| URI: | http://eprints.um.edu.my/id/eprint/42272 |
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