Photocatalytic Active Surface of LWSCC Architectural Concretes

<!DOCTYPE html> <html lang="en" dir="ltr"> <head>  <script async src="https://www.googletagmanager.com/gtag/js?id=G-P63WKM1TM1"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-P63WKM1TM1'); </script>  <script type="text/javascript" > (function(m,e,t,r,i,k,a){m[i]=m[i]||function(){(m[i].a=m[i].a||[]).push(arguments)}; m[i].l=1*new Date(); for (var j = 0; j < document.scripts.length; j++) {if (document.scripts[j].src === r) { return; }} k=e.createElement(t),a=e.getElementsByTagName(t)[0],k.async=1,k.src=r,a.parentNode.insertBefore(k,a)}) (window, document, "script", "https://mc.yandex.ru/metrika/tag.js", "ym"); ym(55165297, "init", { clickmap:false, trackLinks:true, accurateTrackBounce:true, webvisor:false }); </script> <noscript><div><img src="https://mc.yandex.ru/watch/55165297" style="position:absolute; left:-9999px;" alt="" /></div></noscript>    <title>Photocatalytic Active Surface of LWSCC Architectural Concretes</title> <meta name="description" content="Photocatalytic Active Surface of LWSCC Architectural Concretes"> <meta name="keywords" content="Photocatalytic concretes, titanium dioxide, architectural concretes, LWSCC."> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <meta name="citation_title" content="Photocatalytic Active Surface of LWSCC Architectural Concretes"> <meta name="citation_author" content="P. Novosad"> <meta name="citation_author" content="L. Osuska"> <meta name="citation_author" content="M. Tazky"> <meta name="citation_author" content="T. Tazky"> <meta name="citation_publication_date" content="2017/10/01"> <meta name="citation_journal_title" content="International Journal of Structural and Construction Engineering"> <meta name="citation_volume" content="11"> <meta name="citation_issue" content="10"> <meta name="citation_firstpage" content="1464"> <meta name="citation_lastpage" content="1467"> <meta name="citation_pdf_url" content="https://publications.waset.org/10008201/pdf"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" type="button" data-toggle="collapse" data-target="#navbarMenu" aria-controls="navbarMenu" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="w-100"> <div class="d-none d-lg-flex flex-row-reverse"> <form method="get" action="https://waset.org/search" class="form-inline my-2 my-lg-0"> <input class="form-control mr-sm-2" type="search" placeholder="Search Conferences" value="" name="q" aria-label="Search"> <button class="btn btn-light my-2 my-sm-0" type="submit"><i class="fas fa-search"></i></button> </form> </div> <div class="collapse navbar-collapse mt-1" id="navbarMenu"> <ul class="navbar-nav ml-auto align-items-center" id="mainNavMenu"> <li class="nav-item"> <a class="nav-link" href="https://waset.org/conferences" title="Conferences in 2024/2025/2026">Conferences</a> </li> <li class="nav-item"> <a class="nav-link" href="https://waset.org/disciplines" title="Disciplines">Disciplines</a> </li> <li class="nav-item"> <a class="nav-link" href="https://waset.org/committees" rel="nofollow">Committees</a> </li> <li class="nav-item dropdown"> <a class="nav-link dropdown-toggle" href="#" id="navbarDropdownPublications" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> Publications </a> <div class="dropdown-menu" aria-labelledby="navbarDropdownPublications"> <a class="dropdown-item" href="https://publications.waset.org/abstracts">Abstracts</a> <a class="dropdown-item" href="https://publications.waset.org">Periodicals</a> <a class="dropdown-item" href="https://publications.waset.org/archive">Archive</a> </div> </li> <li class="nav-item"> <a class="nav-link" href="https://waset.org/page/support" title="Support">Support</a> </li> </ul> </div> </div> </nav> </div> </header> <main> <div class="container mt-4"> <div class="row"> <div class="col-md-9 mx-auto"> <form method="get" action="https://publications.waset.org/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value=""> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 33100</div> </div> </div> </div> <div class="card publication-listing mt-3 mb-3"> <h5 class="card-header" style="font-size:.9rem">Photocatalytic Active Surface of LWSCC Architectural Concretes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=P.%20Novosad">P. Novosad</a>, <a href="https://publications.waset.org/search?q=L.%20Osuska"> L. Osuska</a>, <a href="https://publications.waset.org/search?q=M.%20Tazky"> M. Tazky</a>, <a href="https://publications.waset.org/search?q=T.%20Tazky"> T. Tazky</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Current trends in the building industry are oriented towards the reduction of maintenance costs and the ecological benefits of buildings or building materials. Surface treatment of building materials with photocatalytic active titanium dioxide added into concrete can offer a good solution in this context. Architectural concrete has one disadvantage – dust and fouling keep settling on its surface, diminishing its aesthetic value and increasing maintenance e costs. Concrete surface – silicate material with open porosity – fulfils the conditions of effective photocatalysis, in particular, the self-cleaning properties of surfaces. This modern material is advantageous in particular for direct finishing and architectural concrete applications. If photoactive titanium dioxide is part of the top layers of road concrete on busy roads and the facades of the buildings surrounding these roads, exhaust fumes can be degraded with the aid of sunshine; hence, environmental load will decrease. It is clear that options for removing pollutants like nitrogen oxides (NOx) must be found. Not only do these gases present a health risk, they also cause the degradation of the surfaces of concrete structures. The photocatalytic properties of titanium dioxide can in the long term contribute to the enhanced appearance of surface layers and eliminate harmful pollutants dispersed in the air, and facilitate the conversion of pollutants into less toxic forms (e.g., NOx to HNO<sub>3</sub>). This paper describes verification of the photocatalytic properties of titanium dioxide and presents the results of mechanical and physical tests on samples of architectural lightweight self-compacting concretes (LWSCC). The very essence of the use of LWSCC is their rheological ability to seep into otherwise extremely hard accessible or inaccessible construction areas, or sections thereof where concrete compacting will be a problem, or where vibration is completely excluded. They are also able to create a solid monolithic element with a large variety of shapes; the concrete will at the same meet the requirements of both chemical aggression and the influences of the surrounding environment. Due to their viscosity, LWSCCs are able to imprint the formwork elements into their structure and thus create high quality lightweight architectural concretes.</p> <iframe src="https://publications.waset.org/10008201.pdf" style="width:100%; height:400px;" frameborder="0"></iframe> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Photocatalytic%20concretes" title="Photocatalytic concretes">Photocatalytic concretes</a>, <a href="https://publications.waset.org/search?q=titanium%20dioxide" title=" titanium dioxide"> titanium dioxide</a>, <a href="https://publications.waset.org/search?q=architectural%20concretes" title=" architectural concretes"> architectural concretes</a>, <a href="https://publications.waset.org/search?q=LWSCC." title=" LWSCC."> LWSCC.</a> </p> <p class="card-text"><strong>Digital Object Identifier (DOI):</strong> <a href="https://doi.org/10.5281/zenodo.1132761" target="_blank">doi.org/10.5281/zenodo.1132761</a> </p> <a href="https://publications.waset.org/10008201/photocatalytic-active-surface-of-lwscc-architectural-concretes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10008201/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10008201/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10008201/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10008201/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10008201/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10008201/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10008201/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10008201/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10008201/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10008201/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10008201.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">767</span> </span> <p class="card-text"><strong>References:</strong></p> <br>[1] A. Fujishima, X. Zhang, A. Tryk. TiO2photocatalysis and related surface phenomena, in Surface Science Reports 63 (2008), Elsevier, ISSN: 01675729, pp. 515-582. <br>[2] J. Přikryl. Analýza receptur pastovitých omítek s aplikací fotokatalytické titanové běloby, In Juniorstav 2008, 10. konference doktorského studia – Sborník anotací, 1. Brno, MLOK, s.r.o. 2008, p. 315, ISBN 978-80-86433-45-5. <br>[3] A. Anpo, M. Takeuchi. The design and development of highly reactive titanium dioxide photocatalysts operating under visible light irradiation, in J. Catal, 2003, 216, pp. 505-16. <br>[4] Z. Murata, H. Obata, H. Tawara, K. Murata. NO Sub X-cleaning Paving Block, US Patent Office, Patent No. 5861205, 1999. <br>[5] Y. Murata, K. Kamitani, H. Tawara, H. Obata, Y. Yamada. NOX removing pavement structure, US Patent Office, Patent No. 6454489, 2002. <br>[6] I. Okura, M. Kaneko. Photocatalysis science and technology, Berlin: Springer, 2002. <br>[7] K. Rajeshwar, Hydrogen generation at irradiated oxide semiconductor–solution interfaces, in Journal of Applied Electrochemistry (2007), Volume: 37, Issue: 7, Publisher: Springer, ISSN: 0021891X . p. 765-787 <br>[8] V. Matějka, P. Kovář, P. Bábková, J. Přikryl, K. MamulováKutláková, P. Čapková. Utilization of Photoactive Kaolinite/TiO2 Composite in Cement-Based Building Materials, Nanotechnology in Construction 3, PROCEEDINGS, 3rd International Symposium on Nanotechnology in Construction, Prague, Czech Republic, pp. 309-314, 2009. <br>[9] K. GaneshBabu, P. Dinakar. 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Photocatalytic Active Surface of LWSCC Architectural Concretes