Laser cleaning of Rakowicze sandstone
article
Decisions about the cleaning of natural stone should always be made within the awareness of direct and indirect damage that may be the result of cleaning. During the last decade, laser cleaning of objects and monuments of natural stone has become increasingly popular. Whereas a considerable amount of literature has been devoted to the effect of laser cleaning on marble and limestone, research into the effects on sandstone is limited. In the present paper, the effect of two cleaning methods, viz. the combination of dry microblasting and laser and laser alone, on Rakowicze sandstone that had developed a thin black weathering layer, are reported and evaluated. Results of visual inspection, microscopic investigation and determination of water absorption and evaporation behaviour are enigmatic.
TNO Identifier
330675
Source
Heron, 48(3), pp. 197-205.
Pages
197-205