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Effect of Hydrophobization on Wetting, Drying and Salt Crystallization in Porous Materials
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N. Shahidzadeh
Published/Copyright:
January 13, 2015
Abstract
We discuss the major role played by both the wetting properties of the porous material and the boundary conditions on the drying process. For hydrophobic materials, it will be shown how under some circumstances the evaporation rate becomes lower in the presence of an air flow over the surface than without an air flow, which at first sight seems counterintuitive. Furthermore, as hydrophobic treatment can facilitate the formation of liquid pockets, we discuss how entrapped sodium chloride solution can reach a high supersaturation before crystallization, contrary to what is commonly assumed for this salt. A consequence of such a high concentration is the very rapid growth of a single skeletal (Hopper) crystal, which can lead to damage.
Published Online: 2015-1-13
Published in Print: 2014-12-1
© 2015 by
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Articles in the same Issue
- Masthead
- Personal Note of the Editor-in-chief
- Enhancement of Theory and Practice in Restoration and Renovation of Buildings and Monuments needs Attitude, Knowledge and Skill: Contribution of a Man and a Journal
- Editorial
- Effect of Hydrophobization on Wetting, Drying and Salt Crystallization in Porous Materials
- Evaluation of the Durability of Hydrophobic Treatments on Concrete Architectural Heritage
- Influences on the Hydrophobicity of Concrete Surfaces Treated with Alkyl Trialkoxysilanes
- Testing New Water Repellent Solutions to Protect Deteriorated Granite
- Innovative Nano-TiO2 Particles for Self-cleaning Treatments of Historic Architecture and Sculptures
- Adapting Hydrophobizing Impregnation Agents to the Object
- Life Cycle Cost Analysis on Impregnated Bridge Edge Beams
- New Books / Neuerscheinungen
- Calendar of Events / Veranstaltungskalender
- Masthead
- Personal Note of the Editor-in-chief
- Enhancement of Theory and Practice in Restoration and Renovation of Buildings and Monuments needs Attitude, Knowledge and Skill: Contribution of a Man and a Journal
- Editorial
- Effect of Hydrophobization on Wetting, Drying and Salt Crystallization in Porous Materials
- Evaluation of the Durability of Hydrophobic Treatments on Concrete Architectural Heritage
- Influences on the Hydrophobicity of Concrete Surfaces Treated with Alkyl Trialkoxysilanes
- Testing New Water Repellent Solutions to Protect Deteriorated Granite
- Innovative Nano-TiO2 Particles for Self-cleaning Treatments of Historic Architecture and Sculptures
- Adapting Hydrophobizing Impregnation Agents to the Object
- Life Cycle Cost Analysis on Impregnated Bridge Edge Beams
- New Books / Neuerscheinungen
- Calendar of Events / Veranstaltungskalender
Keywords for this article
Hydrophobic surface;
Sandstone;
Crystallization;
Sodium chloride;
Evaporation.
Articles in the same Issue
- Masthead
- Personal Note of the Editor-in-chief
- Enhancement of Theory and Practice in Restoration and Renovation of Buildings and Monuments needs Attitude, Knowledge and Skill: Contribution of a Man and a Journal
- Editorial
- Effect of Hydrophobization on Wetting, Drying and Salt Crystallization in Porous Materials
- Evaluation of the Durability of Hydrophobic Treatments on Concrete Architectural Heritage
- Influences on the Hydrophobicity of Concrete Surfaces Treated with Alkyl Trialkoxysilanes
- Testing New Water Repellent Solutions to Protect Deteriorated Granite
- Innovative Nano-TiO2 Particles for Self-cleaning Treatments of Historic Architecture and Sculptures
- Adapting Hydrophobizing Impregnation Agents to the Object
- Life Cycle Cost Analysis on Impregnated Bridge Edge Beams
- New Books / Neuerscheinungen
- Calendar of Events / Veranstaltungskalender
- Masthead
- Personal Note of the Editor-in-chief
- Enhancement of Theory and Practice in Restoration and Renovation of Buildings and Monuments needs Attitude, Knowledge and Skill: Contribution of a Man and a Journal
- Editorial
- Effect of Hydrophobization on Wetting, Drying and Salt Crystallization in Porous Materials
- Evaluation of the Durability of Hydrophobic Treatments on Concrete Architectural Heritage
- Influences on the Hydrophobicity of Concrete Surfaces Treated with Alkyl Trialkoxysilanes
- Testing New Water Repellent Solutions to Protect Deteriorated Granite
- Innovative Nano-TiO2 Particles for Self-cleaning Treatments of Historic Architecture and Sculptures
- Adapting Hydrophobizing Impregnation Agents to the Object
- Life Cycle Cost Analysis on Impregnated Bridge Edge Beams
- New Books / Neuerscheinungen
- Calendar of Events / Veranstaltungskalender
