{"id":443,"date":"2018-07-25T13:44:34","date_gmt":"2018-07-25T11:44:34","guid":{"rendered":"https:\/\/blog.rwth-aachen.de\/bauchemie\/?p=443"},"modified":"2025-01-10T14:05:38","modified_gmt":"2025-01-10T13:05:38","slug":"neue-veroeffentlichungre-alkalisierung-von-karbonatisiertem-beton-mit-einem-neuen-hydrogel","status":"publish","type":"post","link":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/2018\/07\/25\/neue-veroeffentlichungre-alkalisierung-von-karbonatisiertem-beton-mit-einem-neuen-hydrogel\/","title":{"rendered":"New Publication:<\/br>Innovative Hydrogel Solutions for Sustainable Concrete Re-Alkalisation"},"content":{"rendered":"<div class=\"twoclick_social_bookmarks_post_443 social_share_privacy clearfix 1.6.4 locale-en_US sprite-en_US\"><\/div><div class=\"twoclick-js\"><script type=\"text\/javascript\">\/* <![CDATA[ *\/\njQuery(document).ready(function($){if($('.twoclick_social_bookmarks_post_443')){$('.twoclick_social_bookmarks_post_443').socialSharePrivacy({\"txt_help\":\"Wenn Sie diese Felder durch einen Klick aktivieren, werden Informationen an Facebook, Twitter, Flattr, Xing, t3n, LinkedIn, Pinterest oder Google eventuell ins Ausland \\u00fcbertragen und unter Umst\\u00e4nden auch dort gespeichert. N\\u00e4heres erfahren Sie durch einen Klick auf das <em>i<\\\/em>.\",\"settings_perma\":\"Dauerhaft aktivieren und Daten\\u00fcber-tragung zustimmen:\",\"info_link\":\"http:\\\/\\\/www.heise.de\\\/ct\\\/artikel\\\/2-Klicks-fuer-mehr-Datenschutz-1333879.html\",\"uri\":\"https:\\\/\\\/blog.rwth-aachen.de\\\/bauchemie\\\/en\\\/2018\\\/07\\\/25\\\/neue-veroeffentlichungre-alkalisierung-von-karbonatisiertem-beton-mit-einem-neuen-hydrogel\\\/\",\"post_id\":443,\"post_title_referrer_track\":\"New+Publication%3AInnovative+Hydrogel+Solutions+for+Sustainable+Concrete+Re-Alkalisation\",\"display_infobox\":\"on\"});}});\n\/* ]]> *\/<\/script><\/div><p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-444\" src=\"https:\/\/blog.rwth-aachen.de\/bauchemie\/files\/2025\/01\/Unbenannt-1.png\" alt=\"\" width=\"567\" height=\"209\" srcset=\"https:\/\/blog.rwth-aachen.de\/bauchemie\/files\/2025\/01\/Unbenannt-1.png 567w, https:\/\/blog.rwth-aachen.de\/bauchemie\/files\/2025\/01\/Unbenannt-1-300x111.png 300w\" sizes=\"auto, (max-width: 567px) 100vw, 567px\" \/><\/p>\n<p>A recent publication in <em>Soft Matter<\/em> (Issue 40, 2018) introduces a novel highly alkaline hydrogel designed to restore the alkaline buffer capacity in carbonated cementitious materials. This property is essential for preventing steel corrosion in reinforced concrete.<\/p>\n<p>The hydrogel is based on a copolymer of diallyldimethylammonium hydroxide (DADMAOH) and methacrylamide. The addition of methacrylamide as a co-neutral monomer allows for extensive tunability of the gel&#8217;s rheological properties. The viscosity increases a thousandfold\u2014from 0.35 Pa s to over 350 Pa s\u2014when 10 mol% methacrylamide is used, showcasing the material&#8217;s adaptability.<\/p>\n<ol>\n<li>Ion Exchange: Experiments demonstrated efficient diffusion of hydroxide ions from the hydrogel into carbonated material, accompanied by the release of carbonate ions.<\/li>\n<li>Re-Alkalisation: The gel\u2019s effectiveness was confirmed through the phenolphthalein test (DIN EN 14630:2007-01) and IR spectroscopy.<\/li>\n<li>Universal Applicability: The gel can be applied both for modern infrastructure maintenance and the preservation of historical monuments.<\/li>\n<\/ol>\n<p>Jung, A.; Weichold, O.<br \/>\n<em>Preparation and characterisation of highly alkaline hydrogels for the re-alkalisation of carbonated cementitious materials<\/em><br \/>\n<em><i>Soft Matter <b>2018<\/b>, 14 (40), 8105\u20138111. <a href=\"https:\/\/doi.org\/10.1039\/c8sm01158c\"><span class=\"url\">https:\/\/doi.org\/10.1039\/c8sm01158c<\/span>.<\/a><\/i><\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>A recent publication in Soft Matter (Issue 40, 2018) introduces a novel highly alkaline hydrogel designed to restore the alkaline buffer capacity in carbonated cementitious materials. This property is essential [&hellip;]<\/p>\n","protected":false},"author":6398,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"c2c_always_allow_admin_comments":false,"footnotes":""},"categories":[21,5],"tags":[],"class_list":["post-443","post","type-post","status-publish","format-standard","hentry","category-instandhaltung-setzung","category-publication"],"_links":{"self":[{"href":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/wp-json\/wp\/v2\/posts\/443","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/wp-json\/wp\/v2\/users\/6398"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/wp-json\/wp\/v2\/comments?post=443"}],"version-history":[{"count":1,"href":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/wp-json\/wp\/v2\/posts\/443\/revisions"}],"predecessor-version":[{"id":446,"href":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/wp-json\/wp\/v2\/posts\/443\/revisions\/446"}],"wp:attachment":[{"href":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/wp-json\/wp\/v2\/media?parent=443"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/wp-json\/wp\/v2\/categories?post=443"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.rwth-aachen.de\/bauchemie\/en\/wp-json\/wp\/v2\/tags?post=443"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}