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The article deals with studying the antimicrobial efficiency of finely ground metallurgical slags, such as granulated blast-furnace slag with specific surface areas of 340 (1Sa) and 520 m 2 /kg (1Sb), air cooled blast-furnace slag (2S), demetallized steel slag (3S), calcareous ladle slag (4S), and copper slag (5S). The efficiency was tested on microbial representatives, such as: Gram-positive bacteria-Bacillus subtilis, Staphylococcus aureus, Micrococcus luteus; Gram-negative bacteria-Escherichia coli, Pseudomonas aeruginosa, Serratia marcescens; yeasts-Candida utilis, Rhodotorula glutinis; and microscopic filamentous fungi-Aspergillus niger, Penicillium funiculosum, Chaetomium globosum, Alternaria alternata, Trichoderma viride, Cladosporium herbarum. The efficiency was determined by dilution methods in agar growth media so that the resulting concentration of the tested slags was 10, 20, 40, and 60%. The antibacterial efficiency of the slags decreased in the order: S4 > S3 > S2 > S1a = S1b > S5, while their anti-yeast efficiency decreased in the order S4 > S1a = S1b = S3 > S2 > S5. Microscopic filamentous fungi were selectively sensitive to the slags; therefore, there is only an approximate order of efficiency of S4 > S3 = S1a = S1b > S5 > S2. Application of metallurgical slags into building materials and products provide them with increasing resistance against biodeterioration.

At the beginning of this article, the main historical milestones of Povážská cementáreň (cement plant) Ladce, a.s. (PCLA) are presented. The main parameters of the Butkov quarry are also specified (sources of the mineral resources) such as the size of the protected deposit area, the mining area, etc. Another part of the article is devoted to proposals for future mining process. There are two projects in connection with the basic investment plan for PCLA modernization. The first one is the preparation of the survey area for limestone - the stages above the current E15 and the other one is the preparation of the survey area for marl - the Moskové locality. Both of these projects were realized in association with Považskň cementáreň, a.s., Ladce and VŠB - Technical University of Ostrava. An integral part of this article based on the project are also simulation of graphic models and diagrams. The last part of the article documents ways of the cooperation of Butkov Quarry and Považskň cementáreň, a.s., Ladce with the public. The management of the Butkov Quarry and Považskň cementáreň, a.s. have come to realize that their cooperation with the public on cultural and social activities helps both, the public and the quarry (include cement plant).

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