Author Response to Comment on: Laboratory Measurement and Analysis of the Deteriorated Layer Permeability Coefficient of Soil-Cement Deteriorated in a Saline Environment

Qing Jin; Xinzhuang Cui; Junwei Su; Tu Lu; Jieru Wang; Ruonan Han

doi:10.3390/ma13010207

Author Response to Comment on: Laboratory Measurement and Analysis of the Deteriorated Layer Permeability Coefficient of Soil-Cement Deteriorated in a Saline Environment

Materials ◽

10.3390/ma13010207 ◽

2020 ◽

Vol 13 (1) ◽

pp. 207

Author(s):

Qing Jin ◽

Xinzhuang Cui ◽

Junwei Su ◽

Tu Lu ◽

Jieru Wang ◽

...

Keyword(s):

Permeability Coefficient ◽

Laboratory Measurement ◽

Author Response ◽

Saline Environment ◽

Soil Cement ◽

Measurement And Analysis

The authors thank Rui Neves for his discussions related to our work. Errors in the formula have been corrected as suggested by the discusser and data in the article have also been revised.

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Comment on “Laboratory Measurement and Analysis of the Deteriorated Layer Permeability Coefficient of Soil–Cement Deteriorated in a Saline Environment”

Materials ◽

10.3390/ma13010196 ◽

2020 ◽

Vol 13 (1) ◽

pp. 196

Author(s):

Rui Neves

Keyword(s):

Mass Flow ◽

Permeability Coefficient ◽

Laboratory Measurement ◽

Homogeneous Layer ◽

Saline Environment ◽

Future Studies ◽

Soil Cement ◽

Measurement And Analysis ◽

The Right ◽

Heterogeneous Layer

The derivation of a formula to compute the permeability coefficient in the commented paper assumes that the mass flow is homogeneous in a homogeneous layer of a specimen. This assumption is not correct when there is also, at least, one heterogeneous layer. Moreover, a mathematical lapse was found on one equation, that would prevent the right computation of the permeability coefficient, even if the assumption was correct. Although this does not invalidate the major conclusions of the study and has not an outstanding effect on the presented results, for the sake of rigor and sound background for future studies in this field, corrections to the published formulas and model are proposed.

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

Materials ◽

10.3390/ma12142245 ◽

2019 ◽

Vol 12 (14) ◽

pp. 2245 ◽

Cited By ~ 3

Author(s):

Qing Jin ◽

Xinzhuang Cui ◽

Junwei Su ◽

Tu Lu ◽

Jieru Wang ◽

...

Keyword(s):

Permeability Coefficient ◽

Cement Content ◽

Jiaozhou Bay ◽

Logistic Function ◽

Test Method ◽

Saline Environment ◽

Soil Cement ◽

Dredger Fill ◽

Cement Specimen ◽

Curing Age

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.

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Comparison of Different Empirical Correlations to Estimate Permeability Coefficient of Quaternary Danube Soils

Periodica Polytechnica Civil Engineering ◽

10.3311/ppci.13108 ◽

2018 ◽

Author(s):

Miklós Pap ◽

András Mahler

Keyword(s):

Grain Size ◽

Permeability Coefficient ◽

Carpathian Basin ◽

Laboratory Measurement ◽

Granular Soils ◽

Empirical Correlations ◽

Soil Parameter ◽

Measurement Results

Permeability coefficient is the most significant soil parameter in seepage calculations. It has been recognized that permeability of granular soils is strongly related to the grain size, thus numerous empirical correlations have been developed to estimate permeability using its grain size characteristics. In this study the empirical correlations proposed by Hazen (1911), Carrier (2003) and Chapuis (2004) are evaluated and compared to laboratory measurement results. Quaternary Danube soils are very typical in the Carpathian basin, thus their permeability is an important question in many geotechnical applications.

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Laboratory Measurement and Analysis of Deteriorated Layer Permeability Coefficient of Corroded Soil-Cement

10.20944/preprints201907.0149.v1 ◽

2019 ◽

Author(s):

Qing Jin ◽

Xinzhuang Cui ◽

Junwei Su ◽

Tu Lu ◽

Jieru Wang ◽

...

Keyword(s):

Permeability Coefficient ◽

Cement Content ◽

Jiaozhou Bay ◽

Logistic Function ◽

Test Method ◽

Corrosive Environment ◽

Soil Cement ◽

Dredger Fill ◽

Cement Specimen ◽

Curing Age

The deterioration of soil-cement in corrosive environment leads to the reduction of strength and the increase of permeability. Effective methods of determining deteriorated layer permeability coefficient of soil-cement are currently lacking. A laboratory test method for permeability coefficient of deteriorated layer was proposed using the modified permeability coefficient testing apparatus. According to the proposed method, the permeability coefficient of deteriorated layer can be obtained after testing the permeability coefficient of the soil-cement specimen in curing room and the equivalent permeability coefficient and deterioration depth of the soil-cement specimen in corrosion environment. Taking the marine dredger fill of Jiaozhou Bay for example, the deteriorated layer permeability coefficients of soil-cements with different cement contents were tested. It turned out that the permeability of deteriorated layer increases with the increase of age. At the beginning of curing age, larger cement content leads to smaller permeability coefficient of the deteriorated layer of soil-cement. As the curing age increases, the deteriorated layer permeability coefficient of the soil-cement with larger cement content becomes larger. The evolution of the permeability coefficient of deteriorated layer with age can be formulated as the Logistic function. This study provides a support for anti-permeability designs of soil-cement structures in corrosive environment.

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A Study on the Relationship between Pore Structure and Coefficient of Permeability of Soil Stabilized with Cement

MRS Proceedings ◽

10.1557/proc-137-457 ◽

1988 ◽

Vol 137 ◽

Author(s):

Toshimitsu Kunito ◽

Atsuhiro Honda ◽

Miho Mashima ◽

Seishi Hamasato

Keyword(s):

Pore Structure ◽

Pore Size Distribution ◽

Pore Size ◽

Size Distribution ◽

Quantitative Evaluation ◽

Permeability Coefficient ◽

Soil Conditions ◽

Coefficient Of Permeability ◽

Soil Cement ◽

The Relationship

AbstractThis study is aimed at the quantitative evaluation of the impermeability of soil-cement in relation with soil conditions, mix proportions and curing ages. Considering the permeability coefficient as the macro property and the pore size distribution as the micro property, this paper presents the relationship between the permeability coefficient and the pore size distribution of the soil-cement. From this study, a dense soilcement with dispersed fine voids is recommended to improve the impermeability of the soil-cement.

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