2411-3336 2541-9404 Записки Горного института Journal of Mining Institute Санкт-Петербургский горный университет императрицы Екатерины ΙΙ Empress Catherine II Saint Petersburg Mining University LMZCWZ pmi-16020 https://pmi.spmi.ru/pmi/article/view/16020 Геотехнология и инженерная геология Geotechnical Engineering and Engineering Geology Lightweight ash-based concrete production as a promising way of technogenic product utilization (on the example of sewage treatment waste) Получение легкого золобетона как перспективное направление утилизации техногенных продуктов (на примере отходов водоотведения) Litvinova Tatyana E. Литвинова Т. Е. Litvinova Tatyana E. litvinova_te@pers.spmi.ru 0000-0002-0133-3400 Санкт-Петербургский горный университет (Санкт-Петербург, Россия) Saint Petersburg Mining University (Saint Petersburg, Russia) Suchkov Denis V. Сучков Д. В. Suchkov Denis V. suchkov_dv@pers.spmi.ru 0000-0002-5813-615X Санкт-Петербургский горный университет (Санкт-Петербург, Россия) Saint Petersburg Mining University (Saint Petersburg, Russia) 22 05 2023 2023 264 906 918 31 10 2022 02 03 2023 25 12 2023 © Tatyana E. Litvinova, Denis V. Suchkov 2023 Т. Е. Литвинова, Д. В. Сучков Tatyana E. Litvinova, Denis V. Suchkov CC BY 4.0 https://pmi.spmi.ru/pmi/article/view/16020

Исследование посвящено разработке способа утилизации техногенного сырья с перспективой вовлечения продукции на его основе в производство новых строительных материалов. Рассмотрены результаты российских и зарубежных исследований, посвященных полезному использованию отходов (фосфогипс, металлургические шлаки, отходы очистки городских и производственных сточных вод и т.д.) в качестве вторичных материальных ресурсов в отрасли строительных материалов. Установлено, что использование золы от сжигания осадка городских сточных вод в строительстве представляется перспективным направлением в совокупности эколого-экономической эффективности. Проведенное исследование подтверждает соответствие компонентов легких бетонов с добавлением золы требованиям нормативной документации по ряду показателей. Разработан состав сырьевой смеси для производства легкого бетона с золой сжигания осадка городских сточных вод в качестве замены части цемента. По параметрам он не ниже стандартного легкого бетона, маркированного как D1300 (плотность не ниже 1,3 г/см3), Btb2 (прочность на изгиб не менее 2 МПа), M200/B15 (прочность на сжатие не менее 15 МПа), пригодного для использования в строительстве, ремонте автомобильных дорог и благоустройстве городских территорий.

The study is devoted to the development of a method for the technogenic raw materials utilization. Special attention is paid to the prospect of involving products based on them in the production of new building materials. The results of Russian and foreign studies on the reuse of wastes, such as phosphogypsum, metallurgical slag, waste from municipal and industrial wastewater treatment, etc., in the building materials industry are considered. It has been established that the use of incinerated sewage sludge ash in construction is a promising direction in terms of environmental and economic efficiency. The research confirmed the compliance of the lightweight ash-based concrete components to the regulatory documentation requirements for a number of indicators. As a result of the research, the composition of the raw mixture for the lightweight concrete production with incinerated sewage sludge ash as a replacement for a part of the cement has been developed. In terms of parameters, the developed concrete corresponds to standard lightweight concrete, marked in accordance with the regulatory documents of the Russian Federation as D1300 (density not less than 1.3 g/cm3), Btb2 (flexural strength not less than 2 MPa), M200/B15 (compressive strength not less than 15 MPa). Lightweight ash-based concrete is suitable for use in construction, repair of roads and improvement of urban areas.

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