WORKING GROUP "NATURAL STONES AND WEATHERING"  

SERVICES

Documentation and building mapping: types of stones, weathering damages, extent of damage
Measurements at buildings: micro-climate, ultrasonics, drilling resistance, water absorption
Sampling: drill cores, surface samples, samples of quarries
Sample preparation: powder samples, sections and thin sections, formated samples, impregnation, conservation
Laboratory tests: mineral content, clay mineral spectrum, newly-formed minerals (salts), elements, structures, porosity, densities, pore distribution, pore surface, ultrasonic velocity, water absorption and evaporation
Weathering simulation: standard tests, salt crystalization test, frost-thaw cycle test, climate simulation, efficiency of protective agents
Scientific consulting: evaluation of material and damage, replacement stones, restoration and conservation measures, long-term observation


INSTRUMENTATION


PUBLICATIONS



Working group "Natural stones and weathering"
Geological Institute, Aachen University of Technology
Dr.-Ing. B. Fitzner, Acad. Director
Wuellnerstr. 2, D-52062 Aachen, Germany
Tel.: +49 241 8095727, Secretariate: +49 241 8097546
Telefax: +49 241 8092346, Mobile: +49 172 5913174