Objective
During the restoration of historic building much attention is paid to as well t he conservation of the historic materials as the historic shapes. Superficially damaged stones or stones with missing parts are traditionally replaced by newl y carved material. Very often however the original building material is no long er available and thus replacement materials have to be used, which very often a re imported from other countries. These systematic replacements resulted in a s ituation that after the a restoration intervention major parts of the building can be considered as completely new. Since several decades, the use of repa ir mortars becomes more and more popular. Repair mortars are mixtures of bindin g media with granulates. After hardening and eventually reshaping of the surfac e, they mach aesthetically and technically the original material. In this way a ll original material which still is in good condition can be conserved and the intervention can be executed at much lower cost. At the same time, more origina l material is conserved. Products based on slake lime, hydraulic lime, cement, mixtures of lime and cement and of cement and pozzuolana, polyesters, epoxies a re currently commercialized. The purpose of this proposal is twofold: to improv e the quality of an mortar based on zinc oxide and to explore the possibility o f the industrial manufacturing of a repair mortar based on ethyl silicate. The mortar based on zinc oxide has been invented in the 19th century, but due t o a lack of basic research there are still a number of parameters which are unk nown. This research aims to investigate the kinetics of the reaction in order t o allow the manufacturer to improve the quality of his product and due to a bet ter understanding of the chemistry to help him in formulating products which ma ch in a better way most lithotypes used in European monuments. The practical ev aluations will be executed by two end users. Both have a high expertise in the use of repair mortars: one with the type of mortar under investigation, the oth er one with different kinds of repair mortars. In this way an objective and fou nded evaluation will take place. A side project will be a feasibility study to evaluate the possibilities to manufacture in an industrial way repair morta rs based on ethyl silicate. Several recipes are available in literature, but up to now the formulation has to be carried out by the end user. It is the believ e of the proposers of this project that better results can be obtained by the m anufacturing under well controlled conditions.
Fields of science (EuroSciVoc)
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CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques.
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Call for proposal
Data not availableFunding Scheme
CRS - Cooperative research contractsCoordinator
2520 Ranst
Belgium