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Laboratory Measurement and Analysis of the Deteriorated Layer Permeability Coefficient of Soil-Cement Deteriorated in a Saline Environment

School of Civil Engineering, Shandong University, Jinan 250061, China
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Materials 2019, 12(14), 2245; https://doi.org/10.3390/ma12142245
Received: 17 April 2019 / Revised: 4 July 2019 / Accepted: 8 July 2019 / Published: 12 July 2019
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Abstract

The deterioration of soil-cement in a saline environment leads to a reduction in strength and an increase in permeability. Effective methods of determining the deteriorated layer permeability coefficient of soil-cement are currently lacking. A laboratory test method for measuring the permeability coefficient of the deteriorated layer was proposed using the modified permeability coefficient testing apparatus. According to the proposed method, the permeability coefficient of the deteriorated layer could be obtained after testing the permeability coefficient of the soil-cement specimen in acuring room and testing the equivalent permeability coefficient and deterioration depth of the soil-cement specimen in a deteriorated environment. Using the marine dredger fill from Jiaozhou Bay as a case study, the deteriorated layer permeability coefficients of soil-cements with different cement contents were tested. It turned out that the permeability of the deteriorated layer increases with age. At the beginning of the curing age, higher cement content led to a smaller permeability coefficient of the deteriorated layer of soil-cement. As the curing age increased, the deteriorated layer permeability coefficient of the soil-cement with higher cement content increased. The evolution of the permeability coefficient of a deteriorated layer with age can be formulated as the Logistic function. This study provides support for anti-permeability designs of soil-cement structures in saline environments. View Full-Text
Keywords: soil-cement; corrosion; deteriorated layer; permeability coefficient soil-cement; corrosion; deteriorated layer; permeability coefficient
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Jin, Q.; Cui, X.; Su, J.; Lu, T.; Wang, J.; Han, R. Laboratory Measurement and Analysis of the Deteriorated Layer Permeability Coefficient of Soil-Cement Deteriorated in a Saline Environment. Materials 2019, 12, 2245.

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