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Композиційні матеріали на основі фосфогіпсу для конструктивних шарів дорожнього одягу

Yurii Novytskyi1, Nataliia Topylko1, Uliana Marushchak2, Yura Turba1
Affiliation: 
1 Lviv Polytechnic National University, Department of Highways and Bridges. 12 S. Bandery St., 79013, Lviv, Ukraine 2 Lviv Polytechnic National University, Department of Building Production. 12 S. Bandery St., 79013, Lviv, Ukraine nataliia.i.topylko@lpnu.ua
DOI: 
https://doi.org/10.23939/chcht18.01.007
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Abstract: 
Стаття містить матеріали досліджень щодо вирішення проблеми утилізації відходів фосфогіпсу через його використання в шарах основи дорожньої конструкції. З цією метою були приготовані композиційні суміші на основі сирого відвального фосфогіпсу. Склад композиційних сумішей оптимізовано таким чином, щоб вміст фосфогіпсу був максимальним. Фосфогіпс стабілізували доменним гранульованим шлаком і портландцементом. Лабораторними випробуваннями встановлено, що композиційні матеріали на основі фосфогіпсу задовольняють вимоги ДСТУ 9177-3:2022 Частина 3, Матеріали укріплені мінеральними в’яжучими, за показниками міцності на одноосьовий стиск і морозостійкості. Х-променевим дифрактометричним аналізом виявлено новоутворені мінеральні фази в процесі гідратації композиційних матеріалів на основі “фосфогіпс-доменний гранульований шлак-портландцемент”.
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