{"id":6880,"date":"2026-10-15T09:15:00","date_gmt":"2026-09-25T09:15:00","guid":{"rendered":"https:\/\/habikon.me\/?p=6880"},"modified":"2026-07-30T23:46:55","modified_gmt":"2026-07-30T23:46:55","slug":"sta-je-torkret-beton-i-gdje-se-primjenjuje","status":"publish","type":"post","link":"https:\/\/habikon.me\/en\/sta-je-torkret-beton-i-gdje-se-primjenjuje\/","title":{"rendered":"\u0160ta je torkret beton i gdje se primjenjuje"},"content":{"rendered":"

Torkret beton (engl. shotcrete, njem. Spritzbeton) nije vrsta betona po sastavu \u2014 to je tehnika ugradnje<\/strong> betona prskanjem pod pritiskom. Rezultat je monolitni, gusto zbijeni sloj betona koji se formira direktno na povr\u0161ini bez oplate.<\/p>\n

Kako funkcioni\u0161e torkret tehnologija?<\/h2>\n

Beton ili mort se kroz cijev ubacuje u specijalni pi\u0161tolj i mlaznicom pod visokim pritiskom izbacuje na podlogu s brzinom 40\u201380 m\/s. Kineti\u010dka energija \u010destica uzrokuje izuzetno zbijanje materijala pri udaru.<\/p>\n

Rezultat je beton gusto\u0107e i \u010dvrsto\u0107e koje je te\u0161ko posti\u0107i konvencionalnim vibriranjem.<\/p>\n

Suhi vs. mokri postupak<\/h2>\n

Suhi postupak (dry-mix)<\/h3>\n

Suha cementna mje\u0161avina se transportuje kroz cijev, a voda se dodaje tek na mlaznici. Prednosti: manje vode (ni\u017ei w\/c odnos = vi\u0161a \u010dvrsto\u0107a), lak\u0161a logistika. Mana: vi\u0161e odbojnih \u010destica (rebound), zahtijeva vje\u0161t rukovatelj.<\/p>\n

Mokri postupak (wet-mix)<\/h3>\n

Gotova betonska mje\u0161avina s vodom se ubrizgava. Prednosti: bolji nadzor w\/c odnosa, manje pra\u0161ine, manji rebound. Mana: kra\u0107i radni rok mje\u0161avine.<\/p>\n

Gdje se primjenjuje torkret beton?<\/h2>\n

Tuneli i podzemne konstrukcije<\/h3>\n

Ovo je daleko najva\u017enija primjena. Torkret beton se nanosi odmah po proboju u tunel \u2014 stabilizuje iskopanu povr\u0161inu i \u0161titi od odrona. Kombinuje se s \u010deli\u010dnim mre\u017eama i sistemima sidara.<\/p>\n

Nagibi i kosine (klizi\u0161ta)<\/h3>\n

Na padinama u opasnosti od erozije ili klizanja, torkret se nanosi u sloju od 10\u201320 cm \u2014 fiksira tlo, stabilizuje nagib.<\/p>\n

Bazeni i vodeni rezervoari<\/h3>\n

Torkret je idealan za nepravilne forme bazena \u2014 ne treba oplata, nanosi se direktno. Visoka vodotjesnost.<\/p>\n

Sanacija betonskih konstrukcija<\/h3>\n

Na o\u0161te\u0107enim mostovima, betonskim zidovima i temeljima: torkret zamjenjuje o\u0161te\u0107ene dijelove betona \u2014 direktno se nanosi na saniranu povr\u0161inu bez oplate.<\/p>\n

Za\u0161tita stijena i zidina<\/h3>\n

Arheolo\u0161ki lokaliteti, kameni zidovi \u2014 torkret se nanosi u tankim slojevima (3\u20135 cm) za stabilizaciju i za\u0161titu.<\/p>\n

Obloge za \u010delik<\/h3>\n

Protupo\u017earna za\u0161tita \u010deli\u010dnih nosa\u010da i stubova \u2014 torkret obla\u017ee \u010delik i odga\u0111a dostizanje kriti\u010dnih temperatura.<\/p>\n

Materijalni sastav torkret betona<\/h2>\n

Torkret beton ima posebne zahtjeve:<\/p>\n

    \n
  • Cement<\/strong> \u2014 obi\u010dno CEM I 42,5 R, visok sadr\u017eaj<\/li>\n
  • Agregat<\/strong> \u2014 frakcija max. 8\u201312 mm (manji od konvencionalnog betona)<\/li>\n
  • Ubrziva\u010di vezanja (akceleratori)<\/strong> \u2014 hemijski dodaci koji ubrzavaju stvrdnjavanje; posebno va\u017eni u tunelima<\/li>\n
  • \u010celi\u010dna ili sintetska vlakna<\/strong> \u2014 za poja\u010danje pukotinske otpornosti<\/li>\n
  • Silikafum (microsilica)<\/strong> \u2014 za visoke \u010dvrsto\u0107e i nepropusnost<\/li>\n<\/ul>\n

    Karakteristike torkret betona<\/h2>\n
      \n
    • \u010cvrsto\u0107a na pritisak: 25\u201355 MPa (ovisno o sastavu)<\/li>\n
    • Odli\u010dna adhezija na podlogu (beton, kamen, \u010delik)<\/li>\n
    • Nema potrebe za oplatom<\/li>\n
    • Mo\u017ee se nanositi na vertikalne i negativne povr\u0161ine<\/li>\n
    • Minimalna debljina sloja: 5 cm (u jednom prolazu)<\/li>\n<\/ul>\n

      Ograni\u010denja<\/h2>\n
        \n
      • Potrebna specijalna oprema (kompresor, torkreterski ure\u0111aj, mlaznica)<\/li>\n
      • Zahtjeva iskusan kadar<\/li>\n
      • Rebound (odba\u010deni material) mo\u017ee biti 10\u201330% \u2014 gubitak materijala<\/li>\n
      • Ne pogodna za stambene unutra\u0161nje radove (pra\u0161ina, buka)<\/li>\n<\/ul>\n

        U Crnoj Gori<\/h2>\n

        Torkret beton se koristi pri izgradnji auto-puta Bar\u2013Boljare (tuneli), sanaciji klizi\u0161ta na crnogorskim putevima i za\u0161titi obalnih konstrukcija.<\/p>\n

        Za standardne stambene projekte, torkret je rijetko potreban. Ali za sanaciju o\u0161te\u0107enih temelja, bazena ili klizi\u0161nih odrona \u2014 ovo je pravo rje\u0161enje.<\/p>\n

        Habikon savjet<\/h2>\n

        Materijali za torkret beton (Portland cement CEM I, silikafum, agregat, akceleratori) dostupni su u Habikonu. Za ve\u0107e projekte \u2014 kontaktirajte nas za specifikaciju i koli\u010dine.<\/p>","protected":false},"excerpt":{"rendered":"

        Torkret beton (engl. shotcrete, njem. Spritzbeton) nije vrsta betona po sastavu \u2014 to je tehnika ugradnje betona prskanjem pod pritiskom. […]<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6880","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/habikon.me\/en\/wp-json\/wp\/v2\/posts\/6880","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/habikon.me\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/habikon.me\/en\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/habikon.me\/en\/wp-json\/wp\/v2\/comments?post=6880"}],"version-history":[{"count":1,"href":"https:\/\/habikon.me\/en\/wp-json\/wp\/v2\/posts\/6880\/revisions"}],"predecessor-version":[{"id":7214,"href":"https:\/\/habikon.me\/en\/wp-json\/wp\/v2\/posts\/6880\/revisions\/7214"}],"wp:attachment":[{"href":"https:\/\/habikon.me\/en\/wp-json\/wp\/v2\/media?parent=6880"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/habikon.me\/en\/wp-json\/wp\/v2\/categories?post=6880"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/habikon.me\/en\/wp-json\/wp\/v2\/tags?post=6880"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}