Relationship between pore structure and chloride diffusion in cementitious materials

Abstract In this study, literature on pore structure examined by mercury intrusion porosimetry and chloride diffusion was collected and analysed to investigate the correlation between the chloride diffusion and pore structure indicators such as total pore volume, median pore diameter, threshold pore diameter and critical pore diameter in cementitious materials. Good correlation between total porosity and chloride diffusion was found when the samples had no admixture materials and diffusion test was conducted without acceleration. There was no correlation between pore diameter and chloride diffusion coefficient. The diffusivity of cement paste was reduced by adding admixture materials compared to that without admixture materials even if the total porosity is the same. On the other hand, the diffusivity of concrete was not reduced by adding admixture materials.

[1]  C. Fu,et al.  Theoretical and experimental investigation of loading effects on chloride diffusion in saturated concrete , 2015 .

[2]  C. C. Yang,et al.  Relation between the diffusion characteristic of concrete from salt ponding test and accelerated chloride migration test , 2007 .

[3]  Hjh Jos Brouwers,et al.  The apparent and effective chloride migration coefficients obtained in migration tests , 2013 .

[4]  M. Medeiros,et al.  High-Volume Fly Ash Concrete with and without Hydrated Lime: Chloride Diffusion Coefficient from Accelerated Test , 2013 .

[5]  G. Osborne,et al.  DURABILITY OF PORTLAND BLAST-FURNACE SLAG CEMENT CONCRETE , 1999 .

[6]  T. Ishida,et al.  Chloride Binding Capacity of Mortars Made with Various Portland Cements and Mineral Admixtures , 2008 .

[7]  N. Thom,et al.  Macro/micro-pore structure characteristics and the chloride penetration of self-compacting concrete incorporating different types of filler and mineral admixture , 2014 .

[8]  Geert De Schutter,et al.  Chloride ion penetration into fly ash modified concrete during wetting–drying cycles , 2015 .

[9]  Hongjian Du,et al.  Enhancement of barrier properties of cement mortar with graphene nanoplatelet , 2015 .

[10]  A. Khelidj,et al.  Effect of Temperature on Chloride Diffusion in Saturated Concrete , 2017 .

[11]  J. Labrincha,et al.  Chloride diffusivity in red mud-ordinary portland cement concrete determined by migration tests , 2011 .

[12]  A. Fernández,et al.  The influence of curing and aging on chloride transport through ternary blended cement concrete , 2018, Materiales de Construcción.

[13]  I. Yoon,et al.  The Effect of Cracks on Chloride Penetration into Concrete , 2007 .

[14]  S. W. Kim,et al.  Improved production of 1,3-propanediol from biodiesel-derived crude glycerol by Klebsiella pneumoniae in fed-batch fermentation , 2018, Chemical Engineering Journal.

[15]  Research on chloride ion diffusivity of concrete subjected to CO 2 environment , 2012 .

[16]  João Castro-Gomes,et al.  Effect of metakaolin on the chloride ingress properties of concrete , 2016 .

[17]  Y. Sakai.  Relationship between water permeability and pore structure of cementitious materials , 2020 .

[18]  Luca Bertolini,et al.  Effects of Nanosilica on Compressive Strength and Durability Properties of Concrete with Different Water to Binder Ratios , 2016 .

[19]  Wei Sun,et al.  Modeling Chloride Diffusion Coefficient of Steel Fiber Reinforced Concrete under Bending Load , 2018 .

[20]  Sabine Caré,et al.  Effect of temperature on porosity and on chloride diffusion in cement pastes , 2008 .

[21]  Yuanzhan Wang,et al.  Comparisons of instantaneous chloride diffusion coefficients determined by RCM method and chloride natural diffusion test , 2019, Construction and Building Materials.

[22]  E. Garboczi,et al.  Water permeability and chloride ion diffusion in portland cement mortars: Relationship to sand content and critical pore diameter , 1995 .

[23]  Hongyan Ma,et al.  Mercury intrusion porosimetry in concrete technology: tips in measurement, pore structure parameter acquisition and application , 2014, Journal of Porous Materials.

[24]  Y. Sakai.  Correlations between air permeability coefficients and pore structure indicators of cementitious materials , 2018, Construction and Building Materials.

[25]  E. Nägele.  The zeta-potential of cement , 1987 .

[26]  P. Navi,et al.  Simulation of cement paste microstructure hydration, pore space characterization and permeability determination , 2005 .

[27]  Gabriel Jen,et al.  Chloride ingress in a belite-calcium sulfoaluminate cement matrix , 2017 .

[28]  R. Hooton,et al.  Using pore parameters to estimate permeability or conductivity of concrete , 2007 .