{"id":2356,"date":"2024-04-02T15:57:55","date_gmt":"2024-04-02T12:57:55","guid":{"rendered":"https:\/\/t-s.today\/en\/?p=2356"},"modified":"2024-04-02T16:02:37","modified_gmt":"2024-04-02T13:02:37","slug":"18sats423","status":"publish","type":"post","link":"https:\/\/t-s.today\/en\/18sats423.html","title":{"rendered":"High workability cement materials"},"content":{"rendered":"<p style=\"text-align: center;\"><strong><sup>1<\/sup><\/strong><strong>Svetlana V. Zolotareva, <sup>2<\/sup>Narman A. Ayubov,<br \/>\n<sup>3<\/sup>Roman S. Fediuk, <sup>1<\/sup>Sergey V. Klyuev, <sup>4<\/sup>Yury L. Liseitsev<\/strong><\/p>\n<p style=\"text-align: center;\"><sup>1<\/sup>Belgorod State Technological University named after V.G. Shukhov, Belgorod, Russia<br \/>\n<sup>2<\/sup>Comprehensive Research Institute named after<br \/>\nH.I. Ibragimov of the Russian Academy of Sciences, Grozny, Russia<br \/>\n<sup>3<\/sup>Far Eastern Federal University, Vladivostok, Russia<br \/>\n<sup>4<\/sup>Sholom-Aleichem Priamursky State University, Birobidzhan, Russia<\/p>\n<p style=\"text-align: right;\"><strong>Corresponding author: <\/strong>Roman S. Fediuk, e-mail: roman44@ya.ru<\/p>\n<p style=\"text-align: justify;\"><strong>\u00a0<\/strong><strong>Abstract.<\/strong> Analysing the main indicators of the territorial road network development level of our country, we come to the conclusion that it requires a large-scale re-equipment. A wide range of mixtures with high penetrating ability from composite binders ground to Ssw\u00a0=\u00a0500\u00a0m<sup>2<\/sup>\/kg has been developed. The viscosity characteristic of the developed materials testifies to their high penetrating ability, because the time of flow of the investigated materials through the Marsh viscometer is 33\u201339 seconds at a water-binding ratio of 0,62 and water consumption of 140\u00a0l\/m<sup>3<\/sup>. The mixtures are characterised by P4 grade of workability (cone slump more than 30\u00a0cm). It is established that the strength enhancement effect of mixtures&#8217; compressive strength increases at application of composite binder. In particular, at the age of 2 days the mixtures&#8217; compressive strength on low water consumption binder increased by 56\u00a0% in comparison with the additive-free composition. The developed mixtures meet the requirements of GOST\u00a059538-2021: specific surface of cement 450\u00a0m<sup>2<\/sup>\/kg, compressive strength classes \u2014 B5\u2013B10, stable and conditionally stable, water resistance grades \u2014 W6\u2013W16, frost resistance grade \u2014 F2100. Studies of stress-related characteristics of mixtures (elastic modulus 8,92\u00a0GPa, prism strength 10,2\u00a0MPa), give grounds to conclude that on the basis of crushed stone from metamorphic slate stone, it is possible to obtain concrete for roadbed, corresponding to the normative documentation. The developed compositions make it possible to produce concrete of class B5\u2013B10 when strengthening crushed stone bases and they can be used in the construction of bases of II category of motorways.<\/p>\n<p style=\"text-align: justify;\"><strong>Keywords:<\/strong> cement; material; penetrability; mobility; road pavement; concrete; crushed stone<\/p>\n<p style=\"text-align: justify;\">\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1Svetlana V. Zolotareva, 2Narman A. Ayubov, 3Roman S. Fediuk, 1Sergey V. Klyuev, 4Yury L. Liseitsev 1Belgorod State Technological University named after V.G. Shukhov, Belgorod, Russia 2Comprehensive Research Institute named after H.I. Ibragimov of the Russian Academy of Sciences, Grozny, Russia &hellip;<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[51,5],"tags":[],"class_list":["post-2356","post","type-post","status-publish","format-standard","hentry","category-issue-4-2023","category-article"],"_links":{"self":[{"href":"https:\/\/t-s.today\/en\/wp-json\/wp\/v2\/posts\/2356","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/t-s.today\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/t-s.today\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/t-s.today\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/t-s.today\/en\/wp-json\/wp\/v2\/comments?post=2356"}],"version-history":[{"count":3,"href":"https:\/\/t-s.today\/en\/wp-json\/wp\/v2\/posts\/2356\/revisions"}],"predecessor-version":[{"id":2360,"href":"https:\/\/t-s.today\/en\/wp-json\/wp\/v2\/posts\/2356\/revisions\/2360"}],"wp:attachment":[{"href":"https:\/\/t-s.today\/en\/wp-json\/wp\/v2\/media?parent=2356"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/t-s.today\/en\/wp-json\/wp\/v2\/categories?post=2356"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/t-s.today\/en\/wp-json\/wp\/v2\/tags?post=2356"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}