Самовосстанавливающийся бетон. Обзор зарубежных публикаций

Автор: Ильина Л.В., Тацки Л.Н., Дьякова К.С.

Журнал: Вестник Восточно-Сибирского государственного университета технологий и управления @vestnik-esstu

Рубрика: Строительные материалы и изделия (технические науки)

Статья в выпуске: 2 (89), 2023 года.

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Бетон и железобетон - основные конструкционные материалы, воспринимающие высокие нагрузки, многократное попеременное замораживание - оттаивание, коррозионные процессы и т. д., в результате чего возникает трещинообразование. Рассмотрены компоненты, необходимые для получения самовосстанавливающихся бетонов: виды бактерий и требования к ним, питательные среды, носители, прекурсоры (вещества, призванные интенсифицировать кристаллизацию СаСО3). Приведены реакции образования карбоната кальция при гидролизе мочевины и через бактериальное дыхание, приводящее к выделению СО2. Установлено, что карбонатная биоминерализация положительно влияет на физико-технические свойства бетонов: прочность при сжатии, изгибе и растяжении, стойкость к коррозии.

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Самовосстанавливающийся бетон, карбонатная биоминерализация, ликвидация трещинообразования

Короткий адрес: https://sciup.org/142238238

IDR: 142238238 | DOI: 10.53980/24131997_2023_2_72

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