The effect of hydrophobization on the properties of mortar mixtures

Construmat 2018

Novak, V.^1 ; Zach, J.^1

Brno University of Technology, Faculty of Civil Engineering, Institute of Technology of Building Materials and Components, Veveri 331/95, Brno

602 00, Czech Republic^1

关键词: Building structure;    Capillary absorption;    Degradation effect;    Hydrophobic agents;    Hydrophobizations;    Optimal concentration;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/385/1/012040/pdf
DOI  :  10.1088/1757-899X/385/1/012040

来源: IOP

【 摘 要 】

One of the possible methods to reduce degradation effects due to the influence of moisture on building structures and materials is the use of hydrophobic agents - hydrophobization. The article deals with the influence of the hydrophobic preparations use on the change of mortar mixtures properties, where not only the impact on capillary absorption, but also other key properties which can be influenced by the application of the hydrophobic agent, are monitored. By realizing a wide range of measurements, optimal concentrations were determined to achieve properties comparable with the rehabilitation materials without negative effect on other key properties of mortar mixtures, when is mainly a significant reduction of the capillary absorption factor of mortar mixtures only at tiny changing the thermal conductivity factor of the mortar mixtures and without proved changing the other monitored properties.