{"id":3029,"date":"2021-11-18T06:50:46","date_gmt":"2021-11-18T06:50:46","guid":{"rendered":"https:\/\/3.212.105.250\/?p=3029"},"modified":"2025-01-17T18:22:39","modified_gmt":"2025-01-18T00:22:39","slug":"co-urcuje-korozivitu-vasi-pudy","status":"publish","type":"post","link":"https:\/\/vm6fr4whzn6.c.updraftclone.com\/cs\/2021\/11\/18\/co-urcuje-korozivitu-vasi-pudy\/","title":{"rendered":"Co ur\u010duje korozivitu p\u016fdy?"},"content":{"rendered":"

V\u011bt\u0161ina toho, co stav\u00edme, je postavena na zemi nebo v zemi pod na\u0161ima nohama. Dobr\u00e1 p\u016fda udr\u017euje konstrukce, jako jsou z\u00e1klady a potrub\u00ed, na zemi, ale \u0161patn\u00e1 p\u016fda m\u016f\u017ee b\u00fdt jejich zk\u00e1zou. N\u011bkter\u00e9 p\u016fdy jsou vysoce korozivn\u00ed a mohou postupn\u011b naru\u0161ovat konstrukce, oslabovat jejich integritu a v\u00e9st k probl\u00e9m\u016fm v budoucnu.<\/p>\n

Zaj\u00edm\u00e1 v\u00e1s, co ur\u010duje korozivitu va\u0161\u00ed p\u016fdy? Zde jsou tyto faktory co odborn\u00edci na korozi hledaj\u00ed p\u0159i testov\u00e1n\u00ed p\u016fdy<\/a> \u017e\u00edravost.<\/p>\n

Provzdu\u0161\u0148ov\u00e1n\u00ed<\/h2>\n

Provzdu\u0161n\u011bn\u00ed se t\u00fdk\u00e1 mno\u017estv\u00ed vzduchu zachycen\u00e9ho uvnit\u0159 p\u016fdn\u00edch \u010d\u00e1stic. P\u016fdy s vysokou p\u00f3rovitost\u00ed (lep\u0161\u00ed provzdu\u0161n\u011bn\u00ed) jsou m\u00e9n\u011b korozivn\u00ed ne\u017e p\u016fdy s n\u00edzkou p\u00f3rovitost\u00ed. Je to proto, \u017ee dob\u0159e provzdu\u0161n\u011bn\u00e9 p\u016fdy maj\u00ed n\u00edzkou m\u00edru zadr\u017eov\u00e1n\u00ed vlhkosti a vysokou m\u00edru odpa\u0159ov\u00e1n\u00ed. M\u00e9n\u011b vlhkosti v p\u016fd\u011b znamen\u00e1 m\u00e9n\u011b elektrolyt\u016f, a tud\u00ed\u017e ni\u017e\u0161\u00ed riziko koroze.<\/p>\n

Kyselost p\u016fdy<\/h2>\n

Pravd\u011bpodobn\u011b si vzpom\u00edn\u00e1te, \u017ee jste se ve \u0161kole u\u010dili z\u00e1klady pH. Pro osv\u011b\u017een\u00ed: pH je stupnice, kter\u00e1 se pou\u017e\u00edv\u00e1 k ur\u010den\u00ed kyselosti n\u011b\u010deho. Stupnice pH se pohybuje od 0 do 14, p\u0159i\u010dem\u017e ni\u017e\u0161\u00ed \u010d\u00edsla znamenaj\u00ed kyselost a vy\u0161\u0161\u00ed \u010d\u00edsla z\u00e1saditost. Hodnota pH 7 je neutr\u00e1ln\u00ed.<\/p>\n

Pro p\u016fdu je ide\u00e1ln\u00ed neutr\u00e1ln\u00ed pH, ale jak\u00e1koli z\u00e1sadit\u00e1 p\u016fda bude m\u00edt n\u00edzkou m\u00edru koroze. Nikdy v\u0161ak nechcete klesnout pod pH 5. Kysel\u00e9 p\u016fdy jsou siln\u011b korozivn\u00ed a mohou zp\u016fsobit devastaci kov\u016f.<\/p>\n

Obsah soli<\/h2>\n

Dal\u0161\u00ed v\u011bc\u00ed, kter\u00e1 ur\u010duje korozivitu p\u016fdy, je mno\u017estv\u00ed soli ve vod\u011b, kterou zadr\u017euje. Voda obsahuj\u00edc\u00ed rozpu\u0161t\u011bn\u00e9 soli, jako jsou chloridy a s\u00edrany, m\u00e1 vysoce vodiv\u00e9 a reaktivn\u00ed elektrolyty. Kdy\u017e se tyto elektrolyty setkaj\u00ed s kysl\u00edkem a kovov\u00fdm povrchem, doch\u00e1z\u00ed ke korozi.<\/p>\n

Teplota<\/h2>\n

S rostouc\u00ed teplotou kles\u00e1 odpor p\u016fdy a p\u016fda se st\u00e1v\u00e1 korozivn\u011bj\u0161\u00ed. Pokud tedy stav\u00edte ve vyprahl\u00e9m, hork\u00e9m prost\u0159ed\u00ed, d\u00e1vejte si na korozi dobr\u00fd pozor, ale pokud stav\u00edte konstrukci v chladn\u00e9 alja\u0161sk\u00e9 divo\u010din\u011b, nemus\u00edte se tolik ob\u00e1vat.<\/p>\n

Odolnost p\u016fdy<\/h2>\n

P\u016fda rezistivita vyjad\u0159uje, jak dob\u0159e p\u016fda<\/a> odol\u00e1v\u00e1 elektrick\u00e9mu proudu. Odpor p\u016fdy a jej\u00ed vlhkost spolu neodd\u011bliteln\u011b souvisej\u00ed - p\u016fdy s vysok\u00fdm obsahem vlhkosti maj\u00ed obecn\u011b n\u00edzk\u00fd odpor, zat\u00edmco p\u016fdy s n\u00edzk\u00fdm obsahem vlhkosti maj\u00ed vysok\u00fd odpor. Aby byla pravd\u011bpodobnost vzniku koroze n\u00edzk\u00e1, je nezbytn\u00e9 vyb\u00edrat p\u016fdy s n\u00edzkou m\u00edrou zadr\u017eov\u00e1n\u00ed vody.<\/p>\n

Ne\u017e za\u010dnete cokoli stav\u011bt, je nutn\u00e9 otestovat korozivitu p\u016fdy na va\u0161em pozemku. Spole\u010dnost Dreiym Engineering v\u00e1m m\u016f\u017ee pomoci udr\u017eet korozi na uzd\u011b proveden\u00edm n\u00e1sleduj\u00edc\u00edch \u00fakon\u016f.\u00a0testov\u00e1n\u00ed korozn\u00ed agresivity p\u016fdy<\/a>\u00a0na p\u016fd\u011b na va\u0161em pozemku. Kontaktujte n\u00e1s je\u0161t\u011b dnes a domluvte si konzultaci s odborn\u00edkem.<\/p>","protected":false},"excerpt":{"rendered":"

Most of what we build is built on or within the ground beneath our feet. Good soil keeps structures like foundations and pipework grounded, but bad soil can be their downfall. Some soils are highly corrosive and can gradually eat away at structures, weakening their integrity and leading to problems down the road. Wondering what […]<\/p>\n","protected":false},"author":8,"featured_media":3460,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_mbp_gutenberg_autopost":false,"_pgmb_is_evergreen":true,"_pgmb_ap_template_id":0,"iawp_total_views":153,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-3029","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-corrosion-and-cathodic-protection"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t