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      Definition of physicomechanical properties gabbro was made on monoliths from career.
    Quality of raw material was estimated according to the requirement of GOST 9479-69.
    By results of laboratory and production tests it is established:
    1. Gabbro it is possible to use as a facing stone as their physicomechanical and decorative
    properties answer requirement GOST 9479-69 and 9480-69.
    2. By results of factory processing it is established, that gabbro are well polished, have a pure
    smooth surface.
    ¹
    Factors
    Units of measurements
    Gabbros on full program
    1
    Specific gravity
    g/sì3
    2,9-3,05
    2
    Volumetric weight
    g/sì3
    2,79-3,09
    3
    Porosity
    %
    0,4-8,6
    4
    Water absorption
    %
    0,02-0,18
    5
    Mechanical durability at compression
    À) in dry condition
    Á)in water-sated condition
     
    êg/sì3
    êg/sì3
                            
    1676-2672
    1572-2899
    6
    coefficient of softening
    êg/ñì3
    0,83-1,0
    7
    Frost resistance at compression
    À) ÌÐÇ – 35
    Á) ÌÐÇ – 50
     
    êg/sì3
    êg/sì3
     
    1534-2397
    1492-2059
    8

     

    Repartition of durability at coefficient 0,7
    À) in dry condition
    Á) in water-sated condition
    Â) after 35 cycles of freezing
    Ã) after 50 cycles of freezing
     
    êg/sì3
    êg/sì3
    êg/sì3
    êg/sì3
     
    1173-1670
    1158-1679
    1094-1678
    1088-1441

    The name of substance
     and material

    RA-226Áê/êã

    Th-232Áê/êã

    K-40 Áê/êã

    A(åô)Áê/êã

    Class of
     application

    Gabbro Buky’s extraction
      Malin of Zhitomir area

    <7

    <7

    380

    32.3

    1(first)

    Plagioclase

    57-72

    Potash feldspar

    2-9

    Quartz

    <5

    Others

    <3

    Stone our extraction is presented in galleries of the site State gemological centre of the Ukraine to : http://www.gems.org.ua/ru/stone/gb9.htm