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Tytuł artykułu

Effect of various de-icers containing chloride ions on scaling resistance and chloride penetration depth of highway concrete

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Warianty tytułu
PL
Wpływ różnych środków odladzających zawierających jony chlorków na odporność betonu drogowego na wykruszanie i na głębokość ich wnikania
Języki publikacji
EN PL
Abstrakty
EN
The use of chloride-based de-icers belongs to the most common road winter maintenance measures applied to prevent dangerous driving conditions. Chloride-based de-icers are the most frequently used worldwide. The essential difficulty with de-icers is their detrimental effect on concrete, other components of the road infrastructure and on vehicles. The interaction of various individual chloride salts with concrete is described in the paper; the experimental programme was focused on evaluation of the most frequently applied chloride-based de-icers in terms of damage to the air-entrained concrete used for highway construction. Three individual salts – NaCl, CaCl2, MgCl2 – and one blend (NaCl + CaCl2) were used. Their effect on concrete was investigated in terms of surface scaling during freezing-thawing cycles, residual mechanical properties and final ingress of chloride ions. Calcium chloride exhibited the most detrimental effect on the studied concrete.
PL
Użycie środków odladzających zawierających chlorki należy do najpopularniejszych zabiegów utrzymaniowych mających na celu zapewnienie bezpieczeństwa ruchu w zimie. Środki zawierające chlorki stanowią najczęściej stosowaną grupę środków odladzających na świecie. Podstawowym problemem związanym z użyciem takich środków jest ich negatywny wpływ na beton, inne elementy infrastruktury drogowej oraz pojazdy. W niniejszym artykule przedstawiono wpływ różnych soli chlorkowych na beton; badania poświęcone były ocenie najpopularniejszych środków odladzających zawierających chlorki w zakresie ich niszczącego wpływu na beton napowietrzony stosowany w nawierzchniach drogowych. Zbadano trzy sole – NaCl, CaCl2, MgCl2 – oraz jedną mieszankę (NaCl + CaCl2). Ich wpływ na beton analizowany był poprzez badanie łuszczenia powierzchniowego po cyklach zamrażania i rozmrażania, zmiany wytrzymałości próbek oraz głębokości wnikania jonów chlorkowych. Najsilniejszy niszczący wpływ na badany beton wykazał chlorek wapnia.
Rocznik
Strony
51--64
Opis fizyczny
Bibliogr. 53 poz., rys., tab.
Twórcy
  • Czech Technical University in Prague, Faculty of Civil Engineering, Thakurova 7, 166 29, Prague, Czech Republic
  • Czech Technical University in Prague, Faculty of Civil Engineering, Thakurova 7, 166 29, Prague, Czech Republic
Bibliografia
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  • 27. Peterson K., Julio-Betancourt G., Sutter L., Hooton R.D., Johnston D.: Observations of chloride ingress and calcium oxychloride formation in laboratory concrete and mortar at 5°C. Cement and Concrete Research, 45, 2013, 79-90, DOI: 10.1016/j.cemconres.2013.01.001
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  • 39. Bernal J., Fenaux M., Moragues A., Reyes E., Gálvez J.C.: Study of chloride penetration in concretes exposed to high-mountain weather conditions with presence of deicing salts. Construction and Building Materials, 127, 2016, 971-983, DOI: 10.1016/j.conbuildmat.2016.09.148
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Uwagi
Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-0e2e3c3e-cf0a-45d8-84bd-ff52beb25dd2
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