{"id":10654,"date":"2024-06-27T21:30:02","date_gmt":"2024-06-27T19:30:02","guid":{"rendered":"https:\/\/svetkamene.eu\/?p=10654"},"modified":"2024-12-03T22:54:38","modified_gmt":"2024-12-03T21:54:38","slug":"piskovec-dlugopole-vlastnosti","status":"publish","type":"post","link":"https:\/\/svetkamene.eu\/index.php\/cs\/2024\/06\/27\/piskovec-dlugopole-vlastnosti\/","title":{"rendered":"P\u00cdSKOVEC D\u0141UGOPOLE \u2013 VLASTNOSTI"},"content":{"rendered":"

Parametry D\u0142ugopole jsou velmi dobr\u00e9, ale jako ka\u017ed\u00e1 sediment\u00e1rn\u00ed hornina \u010dasto vykazuje vnit\u0159n\u00ed poruchy struktury: dutiny, mikrotrhliny, sko\u0159\u00e1pky. Z tohoto d\u016fvodu je obt\u00ed\u017en\u00e9 posoudit kvalitu materi\u00e1lu v lo\u017eisku – proto se t\u0159\u00edd\u00ed a\u017e po roz\u0159ez\u00e1n\u00ed na desky.<\/strong><\/p>\n

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\"\"<\/p>\n

Fyzik\u00e1ln\u011b-mechanick\u00e9 \u00fadaje:<\/strong><\/p>\n

Objemov\u00e1 hustota: 2320 kg\/m3<\/sup><\/p>\n

P\u00f3rovitost: 7,9<\/p>\n

Nas\u00e1kavost: 3,4 %<\/p>\n

Pevnost v tlaku:<\/strong><\/p>\n

– 87 MPa v such\u00e9m stavu<\/p>\n

Pevnost v ohybu<\/strong><\/p>\n

– v such\u00e9m stavu 7,2 MPa<\/p>\n

– po 14 zmrazovac\u00edch cyklech 6,5 MPa<\/p>\n

– po 56 cyklech 5,8 MPa<\/p>\n

Odolnost proti mrazu: celkem<\/strong><\/p>\n

Abrazivita metodou B\u00f6hme 0,33 cm<\/p>\n

Pevnost p\u0159i vyta\u017een\u00ed 3 cm desky 1100 N<\/p>\n

Popis<\/strong><\/p>\n

sv\u011btle \u017elut\u00e1 nebo sv\u011btle \u0161ed\u00e1 barva<\/p>\n

jemnozrnn\u00fd, velmi tvrd\u00fd,<\/p>\n

pln\u00e1 mrazuvzdornost<\/p>\n

Rozli\u0161ovac\u00ed znaky<\/strong><\/p>\n

nejtvrd\u0161\u00ed ze v\u0161ech \u017elut\u00fdch p\u00edskovc\u016f<\/p>\n

\u017e\u00e1dn\u00e1 anizotropie<\/p>\n

n\u00edzk\u00e1 p\u00f3rovitost a vysok\u00e1 kompaktnost (bez pr\u016fniku lepidla).<\/p>\n

M\u011bn\u00ed barvu po p\u016fsoben\u00ed plamenem<\/p>\n

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\"\"<\/p>\n

D\u0142ugopole se hod\u00ed pro jak\u00fdkoli typ povrchov\u00e9 \u00fapravy. Nej\u010dast\u011bji se v\u0161ak pou\u017e\u00edv\u00e1 le\u0161t\u011bn\u00ed a opalov\u00e1n\u00ed. D\u00edky velk\u00e9 tvrdosti lze dos\u00e1hnout vysok\u00e9ho lesku. Naproti tomu opalov\u00e1n\u00ed zp\u016fsobuje z\u0159etelnou zm\u011bnu barvy na rezav\u00e9 a \u010derven\u00e9 odst\u00edny. D\u0142ugopole p\u011bkn\u011b patinuje a dlouho si zachov\u00e1v\u00e1 barvu. P\u0159\u00edkladem mohou b\u00fdt star\u00e9 \u017eelezni\u010dn\u00ed viadukty, na nich\u017e lze st\u00e1le rozeznat jasn\u011b \u017elutavou barvu, a\u010dkoli sp\u00e1ry jsou ji\u017e siln\u011b zbarven\u00e9 do \u010derna. P\u0159esto v\u00fdrobce doporu\u010duje impregnaci. Nen\u00ed to nutn\u00e9, ale tato \u00faprava d\u00e9le udr\u017e\u00ed barvu a v\u00fdrazn\u011b omez\u00ed usazov\u00e1n\u00ed ne\u010distot. Materi\u00e1l lze m\u00fdt tlakovou my\u010dkou – proveden\u00e9 testy neprok\u00e1zaly \u017e\u00e1dn\u00e9 po\u0161kozen\u00ed ani p\u0159i tlaku 160 bar\u016f. Na fas\u00e1d\u00e1ch p\u016fsob\u00ed velmi efektn\u011b, proto\u017ee velk\u00e1 plocha pokryt\u00e1 t\u00edmto p\u00edskovcem z\u016fst\u00e1v\u00e1 jednolit\u00e1 – mezi navazuj\u00edc\u00edmi panely nejsou viditeln\u00e9 barevn\u00e9 rozd\u00edly a celek dob\u0159e zapad\u00e1 do barevn\u011b konzistentn\u00ed st\u011bny.<\/p>\n

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\"\"<\/p>\n

Dlugopolsk\u00fd p\u00edskovec byl pou\u017eit na mnoha zn\u00e1m\u00fdch m\u00edstech. Mimo jin\u00e9 Jasna G\u00f3ra (sokly kl\u00e1\u0161tern\u00ed budovy, drobn\u00e1 architektura), hrad Wawel (hlavn\u00ed n\u00e1dvo\u0159\u00ed),<\/p>\n

Pal\u00e1c Branick\u00fdch v Bia\u0142ystoku (schodi\u0161t\u011b a podesty), revitalizace z\u00e1mku v Suchej Beskidzkiej, Kr\u00e1lovsk\u00fd z\u00e1mek ve Var\u0161av\u011b (Kubick\u00e9ho ark\u00e1dy), Prezidentsk\u00fd pal\u00e1c (doln\u00ed terasy).<\/p>\n

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\"\"<\/p>\n

Andrzej Weremczuk<\/strong><\/p>\n

(Socha\u0159sk\u00e1 d\u00edlna Andrzeje Weremczuka): Dlugopolsk\u00fd p\u00edskovec je pom\u011brn\u011b tvrd\u00fd, obt\u00ed\u017en\u011b opracovateln\u00fd a n\u00e1ro\u010dn\u00fd na n\u00e1stroje. Po pr\u00e1ci s r\u016fzn\u00fdmi p\u00edskovci se v\u0161ak domn\u00edv\u00e1m, \u017ee sn\u00e1\u0161\u00ed na\u0161e klimatick\u00e9 podm\u00ednky nejl\u00e9pe ze v\u0161ech. Je siln\u011b kontaminovan\u00fd, a proto nep\u0159edv\u00eddateln\u00fd. P\u0159esto se mi l\u00edb\u00ed. Pro barvu – m\u00e1 opravdu hezkou, teplou barvu, \u010dasto volenou investory. Pro svou tvrdost – a\u010dkoli je n\u00e1ro\u010dn\u00fd na n\u00e1stroje, jeho jemn\u00e1 struktura v\u00e1m umo\u017en\u00ed pom\u011brn\u011b p\u0159esn\u011b vykreslit detaily na va\u0161\u00ed so\u0161e. Jej\u00ed tvrdost umo\u017e\u0148uje dosa\u017een\u00ed vysok\u00e9ho lesku, ale doporu\u010duji ho ponechat obrou\u0161en\u00fd. D\u0142ugopole kr\u00e1sn\u011b st\u00e1rne a st\u00e1rnut\u00ed prob\u00edh\u00e1 na povrchu p\u016fdy velmi rovnom\u011brn\u011b.<\/p>\n

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Zdroj:\u00a0Kurier kamieniarski<\/a><\/p>\n

Autor: Pawe\u0142 Szambelan\u00a0<\/span>\u00a0 |\u00a0\u00a0\u00a0Publikov\u00e1no: 21.\u00a012.\u00a02020<\/p>\n","protected":false},"excerpt":{"rendered":"

Parametry D\u0142ugopole jsou velmi dobr\u00e9, ale jako ka\u017ed\u00e1 sediment\u00e1rn\u00ed hornina \u010dasto vykazuje vnit\u0159n\u00ed poruchy struktury:…<\/p>\n","protected":false},"author":32,"featured_media":10657,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[665,372],"tags":[],"yoast_head":"\nP\u00cdSKOVEC D\u0141UGOPOLE \u2013 VLASTNOSTI - Sv\u011bt Kamene<\/title>\n<meta name=\"description\" content=\"Parametry D\u0142ugopole jsou velmi dobr\u00e9, ale jako ka\u017ed\u00e1 sediment\u00e1rn\u00ed hornina \u010dasto vykazuje vnit\u0159n\u00ed poruchy struktury: dutiny, mikrotrhliny\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.kurierkamieniarski.pl\/artykuly\/o-kamieniu\/1293-2020-12-21-11-37-38.html\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P\u00cdSKOVEC D\u0141UGOPOLE \u2013 VLASTNOSTI - 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