Hydrotalcites in Construction Materials

Applied Sciences

Anna-Marie Lauermannová¹  Kryštof Skrbek¹  Vilém Bartůněk¹  Ondřej Jankovský¹  Iva Paterová²  Jan Patera² 

[1] Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague, Czech Republic;Department of Organic Technology, Faculty of Chemical Technology, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague, Czech Republic;

关键词: hydrotalcite;    layered double hydroxides;    building materials;    concrete;    cement;   

DOI  :  10.3390/app10227989

来源: DOAJ

【 摘 要 】

Hydrotalcites are layered double hydroxides displaying a variety of stoichiometry caused by the different arrangement of the stacking of the layers, ordering of the metal cations, as well as the arrangement of anions and water molecules, in the interlayer galleries. The compounds of the hydrotalcite group show a wide range of the possible applications due to their specific properties, such as their large surface area, ion exchange ability, the insolubility in water and most of the organic sorbents, and others. Affordability, wide possibilities of manufacturing, and presence of sufficient natural deposits make hydrotalcites potentially very useful for the construction industry, as either a building material itself or an additive in mortars, concrete or in polymers composites used in constructions. Similar possible application of such material is in leakage control in a radioactive waste repository. The effect of use of these materials for ion exchange, anti-corrosion protection, radioactive ions containment, and similar purposes in building materials is examined in this review.

【 授权许可】

Unknown