"Trvanlivost bo\u017Eanovsk\u00E9ho p\u00EDskovce - simulace pra\u017Esk\u00FDch zimn\u00EDch klimatick\u00FDch podm\u00EDnek"@cs . . . . "RIV/68407700:21110/11:00182664!RIV12-MSM-21110___" . . "P\u00EDskovce byly v Praze \u010Dasto pou\u017E\u00EDv\u00E1ny jako stavebn\u00ED materi\u00E1l. Jejich vlastnosti jsou negativn\u011B ovlivn\u011Bny zejm\u00E9na v zimn\u00EDm obdob\u00ED a p\u0159\u00EDtomnost sol\u00ED m\u016F\u017Ee tento proces zhor\u0161it. N\u00E1rodn\u00ED standardn\u00ED zku\u0161ebn\u00ED postupy nemus\u00ED vz\u00EDt v \u00FAvahu skute\u010Dn\u00E9 podm\u00EDnky dan\u00E9 lokality. Z tohoto d\u016Fvodu byly chemicky analyzov\u00E1ny vzorky sn\u011Bhu a vody z centra Prahy a byla stanovena pr\u016Fm\u011Brn\u00E1 koncentrace NaCl. Pro \u00FA\u010Dely simulace zv\u011Btr\u00E1vac\u00EDch proces\u016F typick\u00FDch pro pra\u017Esk\u00E9 zimn\u00ED klimatick\u00E9 podm\u00EDnky byla statisticky vyhodnocena meteorologick\u00E1 data z let 1999 - 2008. Na z\u00E1klad\u011B t\u00E9to anal\u00FDzy byl vytvo\u0159en speci\u00E1ln\u00ED simula\u010Dn\u00ED program. 2,5% roztok NaCl byl pou\u017Eit pro simulaci vlivu posypov\u00FDch sol\u00ED. V r\u00E1mci tohoto experimentu byl testov\u00E1n bo\u017Eanovsk\u00FD ark\u00F3zovit\u00FD p\u00EDskovec. Zm\u011Bny vnit\u0159n\u00ED struktury byly studov\u00E1ny pomoc\u00ED Hg porozimetrie. Rovn\u011B\u017E byly stanoveny zm\u011Bny n\u011Bkter\u00FDch z\u00E1kladn\u00EDch fyzik\u00E1ln\u011B-mechanick\u00FDch vlastnost\u00ED."@cs . "Kov\u00E1\u0159ov\u00E1, Kate\u0159ina" . . . "P\u00EDskovce byly v Praze \u010Dasto pou\u017E\u00EDv\u00E1ny jako stavebn\u00ED materi\u00E1l. Jejich vlastnosti jsou negativn\u011B ovlivn\u011Bny zejm\u00E9na v zimn\u00EDm obdob\u00ED a p\u0159\u00EDtomnost sol\u00ED m\u016F\u017Ee tento proces zhor\u0161it. N\u00E1rodn\u00ED standardn\u00ED zku\u0161ebn\u00ED postupy nemus\u00ED vz\u00EDt v \u00FAvahu skute\u010Dn\u00E9 podm\u00EDnky dan\u00E9 lokality. Z tohoto d\u016Fvodu byly chemicky analyzov\u00E1ny vzorky sn\u011Bhu a vody z centra Prahy a byla stanovena pr\u016Fm\u011Brn\u00E1 koncentrace NaCl. Pro \u00FA\u010Dely simulace zv\u011Btr\u00E1vac\u00EDch proces\u016F typick\u00FDch pro pra\u017Esk\u00E9 zimn\u00ED klimatick\u00E9 podm\u00EDnky byla statisticky vyhodnocena meteorologick\u00E1 data z let 1999 - 2008. Na z\u00E1klad\u011B t\u00E9to anal\u00FDzy byl vytvo\u0159en speci\u00E1ln\u00ED simula\u010Dn\u00ED program. 2,5% roztok NaCl byl pou\u017Eit pro simulaci vlivu posypov\u00FDch sol\u00ED. V r\u00E1mci tohoto experimentu byl testov\u00E1n bo\u017Eanovsk\u00FD ark\u00F3zovit\u00FD p\u00EDskovec. Zm\u011Bny vnit\u0159n\u00ED struktury byly studov\u00E1ny pomoc\u00ED Hg porozimetrie. Rovn\u011B\u017E byly stanoveny zm\u011Bny n\u011Bkter\u00FDch z\u00E1kladn\u00EDch fyzik\u00E1ln\u011B-mechanick\u00FDch vlastnost\u00ED." . "[EB11DED52161]" . "SK - Slovensk\u00E1 republika" . "The durability of Bo\u017Eanov sandstone - simulation of Prague winter climatic conditions"@en . "S" . . . "1338-0044" . . "RIV/68407700:21110/11:00182664" . "1" . . "8"^^ . . "The durability of Bo\u017Eanov sandstone - simulation of Prague winter climatic conditions"@en . "3" . . . "Trvanlivost bo\u017Eanovsk\u00E9ho p\u00EDskovce - simulace pra\u017Esk\u00FDch zimn\u00EDch klimatick\u00FDch podm\u00EDnek" . "236153" . "Sandstones were often used as building material in Prague. Their properties are negatively influenced especially during the winter frost period, and the presence of salt can exacerbate this process. The national standardized testing methods may not take into consideration the actual conditions in the stone's locality. Samples of snow/water mixtures from Prague city centre were chemically analyzed and the average NaCl concentration was determined. To simulate the weathering processes typical in Prague's winter climatic conditions, seasonal data from 1999 to 2008 were statistically analyzed. Based on this analysis, a simulation program was developed. The 2.5% solution of NaCl was used to simulate the influence of road salts. The Bo\u017Eanov Cretaceous sandstone was tested during this experiment. Changes developing in the internal structure were studied by Hg porosimetry. Physical-mechanical properties were also studied."@en . "http://geopaleo.fns.uniba.sk/ageos/articles/abstract.php?path=kovarova&vol=3&iss=1" . "1"^^ . . "1"^^ . . "Acta Geologica Slovaca" . "Trvanlivost bo\u017Eanovsk\u00E9ho p\u00EDskovce - simulace pra\u017Esk\u00FDch zimn\u00EDch klimatick\u00FDch podm\u00EDnek"@cs . "sandstone; porosity; durability; weathering simulation program; geotechnical properties; Hg porosimetry"@en . . . "21110" . "Trvanlivost bo\u017Eanovsk\u00E9ho p\u00EDskovce - simulace pra\u017Esk\u00FDch zimn\u00EDch klimatick\u00FDch podm\u00EDnek" . .