{"id":7311,"date":"2026-05-15T12:36:20","date_gmt":"2026-05-15T10:36:20","guid":{"rendered":"https:\/\/ustarch.sav.sk\/sk\/materials-and-rheology\/design-and-development-of-heavy-weight-cement-based-composites-with-shielding-properties\/"},"modified":"2026-05-23T17:00:58","modified_gmt":"2026-05-23T15:00:58","slug":"design-and-development-of-heavy-weight-cement-based-composites-with-shielding-properties","status":"publish","type":"page","link":"https:\/\/ustarch.sav.sk\/sk\/materials-and-rheology\/design-and-development-of-heavy-weight-cement-based-composites-with-shielding-properties\/","title":{"rendered":"Design and development of heavy-weight cement-based composites with shielding properties"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-7348 alignleft\" src=\"https:\/\/ustarch.sav.sk\/sk\/wp-content\/uploads\/sites\/2\/heavyweight4-263x300.jpg\" alt=\"\" width=\"263\" height=\"300\" srcset=\"https:\/\/ustarch.sav.sk\/sk\/wp-content\/uploads\/sites\/2\/heavyweight4-263x300.jpg 263w, https:\/\/ustarch.sav.sk\/sk\/wp-content\/uploads\/sites\/2\/heavyweight4.jpg 578w\" sizes=\"auto, (max-width: 263px) 100vw, 263px\" \/> The research focuses on the development and optimization of heavyweight cement-based composites with enhanced protective performance for structures exposed to ionizing radiation. Typical applications include nuclear power plants, particle accelerators, and nuclear waste storage systems. These materials should provide effective radiation shielding, high mechanical and impact resistance, controlled thermal behavior in massive elements, low permeability, volumetric stability, and long-term durability. Achieving given requirements is closely linked to the chemical and mineralogical composition of raw materials, hydration heat evolution of cementitious binders, and the resulting composite microstructure. Research objectives \u2022 Granulometric optimization of heavyweight aggregates such as baryte, magnetite, cast iron, and their combinations. \u2022 Development of multicomponent binder systems incorporating supplementary cementitious materials to control hydration heat and improve performance. \u2022 Design of heavyweight (vibrated\/self-compacting) concretes with adequate flowability and segregation resistance. \u2022 Optimization of fiber reinforcement to enhance crack control, energy absorption, post-cracking behavior, and ballistic resistance. \u2022 Evaluation of rheological, mechanical and durability-related properties of the composites.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-7347 aligncenter\" src=\"https:\/\/ustarch.sav.sk\/sk\/wp-content\/uploads\/sites\/2\/heavyweight3-300x120.jpg\" alt=\"\" width=\"508\" height=\"203\" srcset=\"https:\/\/ustarch.sav.sk\/sk\/wp-content\/uploads\/sites\/2\/heavyweight3-300x120.jpg 300w, https:\/\/ustarch.sav.sk\/sk\/wp-content\/uploads\/sites\/2\/heavyweight3.jpg 718w\" sizes=\"auto, (max-width: 508px) 100vw, 508px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The research focuses on the development and optimization of heavyweight cement-based composites with enhanced protective performance for structures exposed to ionizing radiation. Typical applications include&#8230;<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":5003,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"class_list":["post-7311","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/ustarch.sav.sk\/sk\/wp-json\/wp\/v2\/pages\/7311","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ustarch.sav.sk\/sk\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ustarch.sav.sk\/sk\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ustarch.sav.sk\/sk\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/ustarch.sav.sk\/sk\/wp-json\/wp\/v2\/comments?post=7311"}],"version-history":[{"count":2,"href":"https:\/\/ustarch.sav.sk\/sk\/wp-json\/wp\/v2\/pages\/7311\/revisions"}],"predecessor-version":[{"id":7533,"href":"https:\/\/ustarch.sav.sk\/sk\/wp-json\/wp\/v2\/pages\/7311\/revisions\/7533"}],"up":[{"embeddable":true,"href":"https:\/\/ustarch.sav.sk\/sk\/wp-json\/wp\/v2\/pages\/5003"}],"wp:attachment":[{"href":"https:\/\/ustarch.sav.sk\/sk\/wp-json\/wp\/v2\/media?parent=7311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}