@ARTICLE{Pękala_Agnieszka_Influence_2021, author={Pękala, Agnieszka and Puch, Filip}, volume={vol. 67}, number={No 4}, journal={Archives of Civil Engineering}, pages={337-350}, howpublished={online}, year={2021}, publisher={WARSAW UNIVERSITY OF TECHNOLOGY FACULTY OF CIVIL ENGINEERING and COMMITTEE FOR CIVIL ENGINEERING POLISH ACADEMY OF SCIENCES}, abstract={This paper presents laboratory analyses of the influence of an acidic environment, salinity and temperature change are able to exert on the geomechanical properties of the opoka-rocks. This rock material, deriving from four sites in East–Central Poland, was found to be variously resistant to factors like the destructive action of water-soluble salts and the effects of an acidic environment, on account of the actuallydiverse nature of the rocks in question. Ultimately, the work offered a basis for a distinction to be drawn between the light opoka-rocks present at the Annopol and KazimierzWielki sites, and the heavy opoka-rocks from Bochotnica and Krasnobród, in terms of both textural and physical-mechanical features. The heavy opoka-rocks from Krasnobród proved least resistant to an acidic environment, which left strength reduced significantly. This kind of rock also experiences both an increase in porosity and absorbability and a decrease in weight. Furthermore, the influence of an acidic environment on aesthetic features of the examined rocks was in all cases negative, salts formed a patina on surfaces that obscured original structural and textural features. None of the tested types of rock presented resistance to the crystallization pressure such salt is able to exert.}, type={Article}, title={Influence of environmental factors on physical and mechanical characteristics of the opoka-rocks}, URL={http://journals.pan.pl/Content/121999/PDF-MASTER/art21_corr.pdf}, doi={10.24425/ace.2021.138503}, keywords={crystallization pressure, acidic or saline environments, geomechanical properties, transitional rocks}, }