{"id":726,"date":"2021-02-04T13:03:07","date_gmt":"2021-02-04T12:03:07","guid":{"rendered":"http:\/\/www.grad.hr\/latom\/?page_id=726"},"modified":"2022-02-23T09:44:32","modified_gmt":"2022-02-23T08:44:32","slug":"zivin-porozimetar","status":"publish","type":"page","link":"https:\/\/latom.grad.hr\/index.php\/hr\/oprema-2\/zivin-porozimetar\/","title":{"rendered":"\u017divin porozimetar"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/latom.grad.hr\/wp-content\/uploads\/2021\/01\/Porozimetar-768x1024.jpg\" alt=\"\" class=\"wp-image-503\" width=\"171\" height=\"227\" srcset=\"https:\/\/latom.grad.hr\/wp-content\/uploads\/2021\/01\/Porozimetar-768x1024.jpg 768w, https:\/\/latom.grad.hr\/wp-content\/uploads\/2021\/01\/Porozimetar-225x300.jpg 225w, https:\/\/latom.grad.hr\/wp-content\/uploads\/2021\/01\/Porozimetar-1152x1536.jpg 1152w, https:\/\/latom.grad.hr\/wp-content\/uploads\/2021\/01\/Porozimetar-1536x2048.jpg 1536w, https:\/\/latom.grad.hr\/wp-content\/uploads\/2021\/01\/Porozimetar-scaled.jpg 1920w\" sizes=\"auto, (max-width: 171px) 100vw, 171px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:66.66%\">\n<p class=\"wp-block-paragraph\"><strong>\u017divin porozimetar<\/strong> koristi se za mjerenje poroznosti i raspodjele veli\u010dina pora cementnih i drugih materijala. To je brza metoda koja omogu\u0107uje dobivanje informacija o strukturi pora. \u017divinom porozimetrijom mo\u017ee se izmjeriti promjer pora, koji varira od nekoliko nanometara do nekoliko milimetara, ovisno o tlaku koji se koristi za ubrizgavanje \u017eive.<\/p>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Primjer upotrebe<\/strong>: <em>Analiza pasti s razli\u010ditim vrstama veziva<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Iz distribucije pora u ovisnosti o njihovoj veli\u010dini (veli\u010dina perkolacije ili veli\u010dina vrata pora) vidljivo je da u slu\u010daju mje\u0161avine na bazi obi\u010dnog portlandskog cementa (OPC) ima vi\u0161e ve\u0107ih (\u02c3 100 nm ) pora, u usporedbi s mje\u0161avinama na bazi nano-silicijevog dioksida (nSi) i na bazi lete\u0107eg pepela i silikatne pra\u0161ine (lpH).<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/latom.grad.hr\/wp-content\/uploads\/2021\/01\/MIP3.png\" alt=\"\" class=\"wp-image-549\" width=\"380\" height=\"410\" srcset=\"https:\/\/latom.grad.hr\/wp-content\/uploads\/2021\/01\/MIP3.png 677w, https:\/\/latom.grad.hr\/wp-content\/uploads\/2021\/01\/MIP3-278x300.png 278w\" sizes=\"auto, (max-width: 380px) 100vw, 380px\" \/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u0160tovi\u0161e, postoji razlika u koli\u010dini gelskih mikropora (\u02c2 4,5 nm) i mezopora (4,5 &#8211; 50 nm) uo\u010denih za tri razli\u010dite mje\u0161avine. Mje\u0161avine na bazi veziva s pucolanskim materijalima (nSi i pH) imaju ve\u0107i postotak pora s rasponom veli\u010dine oko 10 nm i ni\u017eim. Istra\u017eivanje je proveden u projektu NEWFELPRO PHENEMICS.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Primjer uporabe<\/strong>: <em>Analiza betona s aerantom<\/em><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/latom.grad.hr\/wp-content\/uploads\/2021\/01\/MIP2-1024x601.jpg\" alt=\"\" class=\"wp-image-540\" width=\"394\" height=\"230\" srcset=\"https:\/\/latom.grad.hr\/wp-content\/uploads\/2021\/01\/MIP2-1024x601.jpg 1024w, https:\/\/latom.grad.hr\/wp-content\/uploads\/2021\/01\/MIP2-300x176.jpg 300w, https:\/\/latom.grad.hr\/wp-content\/uploads\/2021\/01\/MIP2-768x451.jpg 768w, https:\/\/latom.grad.hr\/wp-content\/uploads\/2021\/01\/MIP2-1536x901.jpg 1536w, https:\/\/latom.grad.hr\/wp-content\/uploads\/2021\/01\/MIP2-2048x1202.jpg 2048w\" sizes=\"auto, (max-width: 394px) 100vw, 394px\" \/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Kori\u0161tenjem porozimetra bilo je mogu\u0107e identificirati u\u010dinkovitost uvla\u010denja zraka. Kemijski dodatak (aerant) rezultirao je pove\u0107anjem ve\u0107ih pora u matrici, \u0161to je bilo vidljivo u pomicanju vrha u ve\u0107e pore, u usporedbi sa sustavom bez uvla\u010denja zraka. Ispitivanja su provedena u sklopu FP7 projekta Anagennisi.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u017divin porozimetar koristi se za mjerenje poroznosti i raspodjele veli\u010dina pora cementnih i drugih materijala. To je brza metoda koja omogu\u0107uje dobivanje informacija o strukturi pora. \u017divinom porozimetrijom mo\u017ee se izmjeriti promjer pora, koji varira od nekoliko nanometara do nekoliko milimetara, ovisno o tlaku koji se koristi za ubrizgavanje \u017eive. Primjer upotrebe: Analiza pasti s [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":611,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-726","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u017divin porozimetar - LATOM<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/latom.grad.hr\/index.php\/hr\/oprema-2\/zivin-porozimetar\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u017divin porozimetar - LATOM\" \/>\n<meta property=\"og:description\" content=\"\u017divin porozimetar koristi se za mjerenje poroznosti i raspodjele veli\u010dina pora cementnih i drugih materijala. 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