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Effect of Acid Rain on the Disintegration of Remolded Red Clay
Sinkholes extensively occur in China and all over the world. The sinkholes are paroxysmal, concealed, and often cause huge economic loss and human fatalities. Disintegration of the red clay is one of the major reasons contributing to sinkholes in the karst areas of southern China. Previous studies mainly focused on the mechanism of disintegration, while effects of the acid rain on the disintegration of the red clay were not fully studied. This paper investigated the effects of the acid rain on the disintegration of the red clay using a new approach. By comparing the pH values, concentrations of the oxide, specific surface areas, and other parameters for the red clay before and after the disintegration, the mechanisms of disintegration of the red clay were explored. Test results showed that degree of the red clay disintegration increased with the decrease of the pH value of the acid rain. This trend is especially dramatic when the red clay is unsaturated.
Effect of Acid Rain on the Disintegration of Remolded Red Clay
Sinkholes extensively occur in China and all over the world. The sinkholes are paroxysmal, concealed, and often cause huge economic loss and human fatalities. Disintegration of the red clay is one of the major reasons contributing to sinkholes in the karst areas of southern China. Previous studies mainly focused on the mechanism of disintegration, while effects of the acid rain on the disintegration of the red clay were not fully studied. This paper investigated the effects of the acid rain on the disintegration of the red clay using a new approach. By comparing the pH values, concentrations of the oxide, specific surface areas, and other parameters for the red clay before and after the disintegration, the mechanisms of disintegration of the red clay were explored. Test results showed that degree of the red clay disintegration increased with the decrease of the pH value of the acid rain. This trend is especially dramatic when the red clay is unsaturated.
Effect of Acid Rain on the Disintegration of Remolded Red Clay
Li, Shanmei (author) / Liu, Zhikui (author) / Zhang, Xiong (author) / Mu, Chunmei (author)
Eighth International Conference on Case Histories in Geotechnical Engineering ; 2019 ; Philadelphia, Pennsylvania
Geo-Congress 2019 ; 110-118
2019-03-21
Conference paper
Electronic Resource
English
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