. "Petrografick\u00E9 rozbory malt, jejich realtivn\u00ED datov\u00E1n\u00ED podle stupn\u011B degradace pojiva"@cs . "Petrographic mortar and plaster analysis and their relative age determination"@en . . . "Petrografick\u00E9 rozbory malt, jejich realtivn\u00ED datov\u00E1n\u00ED podle stupn\u011B degradace pojiva" . "Gregerov\u00E1, Miroslava" . "Petrografick\u00E9 rozbory malt, jejich realtivn\u00ED datov\u00E1n\u00ED podle stupn\u011B degradace pojiva" . . . "The presented paper summarizes the result of the research of historical plasters and mortars from the Church of Saint Venceslas in Moravsk\u00E1 Ostrava, the Church of the Transition of Virgin Mary in Brantice and from archaeological survey of the basement of the Church of Saint Catherine in Kel\u010D. The relative dating of particular building stages of the said churches is based on micropetrographic identification of the sand fraction of mortars (in each stage, a different sand was used) and on the degree of recrystallization (ageing) of the original micritic carbonate. The assessment of the plasters and mortars has to take into account the localization (inner, outer plaster) and the altitude of the sampling site and position of the mortar in the wall (plaster, cast mortar, bedding mortar). The orientation of the sampled wall with respect to cardinal points has also to be documented. Micropetrographic analysis of the sand fraction of mortars and plasters, together with the assessment of the degree of matrix"@en . "721447" . "RIV/00216224:14310/00:00003351!RIV/2002/GA0/143102/N" . . . . . "0"^^ . "Geologick\u00E9 v\u00FDzkumy na Morav\u011B a ve Slezsku v roce 1999" . "1"^^ . "composition, durability, degradation, recrystallization, building plasters, mortars, relative age"@en . "0"^^ . "Petrographic mortar and plaster analysis and their relative age determination"@en . . . "3"^^ . . "[10E2C40DE666]" . "14310" . "149" . "1"^^ . . "Petrografick\u00E9 rozbory malt, jejich realtivn\u00ED datov\u00E1n\u00ED podle stupn\u011B degradace pojiva"@cs . . . "1" . "CZ - \u010Cesk\u00E1 republika" . "VII" . . "RIV/00216224:14310/00:00003351" . "1212-6209" . . . . "P(GA103/99/0941)" . "P\u0159i zji\u0161t\u011Bn\u00ED relativn\u00EDho st\u00E1\u0159\u00ED stavby vych\u00E1z\u00EDme: z vlastn\u00EDho slo\u017Een\u00ED maltovin, stupen\u011B vytvrdnut\u00ED pojiva, pozice v r\u00E1mci stavby, povahy stavebn\u00EDho kamene, klimatick\u00FDch podm\u00EDnek, vzl\u00EDn\u00E1n\u00ED podzemn\u00ED vody, pozice v\u00FD\u0161kov\u00E9, orientace vzhledem ke sv\u011Btov\u00FDm stran\u00E1m, izolace stavby, kvality \u00FAdr\u017Eby, p\u0159estavby, vyu\u017Eit\u00ED objektu atd. Postup byl ov\u011B\u0159en na malt\u00E1ch poch\u00E1zej\u00EDc\u00EDch z kostela sv. V\u00E1clava v Moravsk\u00E9 Ostrav\u011B, z kostela sv. Kate\u0159iny v Kel\u010Di a kostela Nanebevzet\u00ED Panny Marie v Brantic\u00EDc. V\u00FDsledky studia proveden\u00E9 na souboru cca 30 vzork\u016F malt a om\u00EDtek prok\u00E1zaly, \u017Ee mikropetrografick\u00E9 rozbory p\u00EDs\u010Dit\u00E9 frakce malt a om\u00EDtek spolu s rekrystalizac\u00ED pojiva mohou a\u017E s 95% pravd\u011Bpodobnost\u00ED potvrdit \u010Di vyvr\u00E1tit p\u0159edpokl\u00E1dan\u00E9 st\u00E1\u0159\u00ED jednotliv\u00FDch stavebn\u00EDch f\u00E1z\u00ED." .