MORtars with mixed-in Inhibitors for mitigation of SALt damage

Salt crystallization is a common cause of weathering of building materials worldwide. In particular, mortars (including plasters and renders) are recurrently damaged by salt crystallization and need frequent replacement, resulting in high costs. The quest for new, sustainable solutions, improving the service life of renovation mortars is the response to a severe problem met in practice. The proposed research aims at the development of renovation mortars with an improved durability with respect to salt crystallisation, thanks to the use of crystallization inhibitors (i.e. molecules or ions capable to modify salt crystallization making it less harmful) mixed in the mass.

In order to achieve this, fundamental issues (related to the development of crystallization pressure in the pores of a building material) and aspects related to the performance of the product will be investigated. Three universities, a research centre, a mortar producer and branch organizations have joined their forces for the achievement of this ambitious goal. 



Domain: Applied and Engineering Sciences (TTW)


Open Technology Programme 

Grant number: 


Grant amount:

Overall budget: € 620.200 
Total grant amount: € 585.200
Contribution to TU Delft: € 326.710 


Lead partner

Project duration:          

1 September 2019 – 31 August 2023  

Principal TU Delft researcher:

Barbara Lubelli

Ameya Kamat

Erik Schlangen

Project partners

Delft University of Technology (Faculty of Architecture and the Built Environment / Faculty of Civil Engineering and Geosciences), Eindhoven University of Technology, Radboud University


Dr. Barbara Lubelli