Published since 1923
DOI: 10.33622/0869-7019
Russian Science Citation Index (RSCI) Web of Science
  • BUILDING MATERIALS AND PRODUCTS
  • Influence Of The Specific Surface Area Of Hydro-Removal Ash On The Properties Of Ash-Cement Stone
  • UDC 691.33
    doi: 10.33622/0869-7019.2023.02.73-80
    Alexander V. YAVINSKIY, 121qqz@mail.ru
    Irina L. CHULKOVA, le5@inbox.ru
    Siberian State Automobile and Highway University (SibADI), prospekt Mira, 5, Omsk 644080, Russian Federation
    Abstract. The problem of storage of hydraulic removal ash in ash dumps is considered. The negative impact on the ecology caused by the accumulation of such ash in the ash dump has been noted. Overview data on the processing of hydraulic removal ash in Russia and abroad are given. It is established that the largest amount of ash in the world is disposed of in the construction industry. Changes in humidity and specific surface area of hydraulic removal ash of the Omsk region depending on the depth of occurrence in the dump were studied, its chemical composition was determined and it was revealed that this ash belongs to the ultra-acidic. The effect of ultra-acid hydro-removal ash on the strength and water absorption of ash-cement stone was studied at its different specific surface and the amount of ash introduced. It is proved that the strength of the ash-cement stone increases with an increase in the specific surface of the hydraulic removal ash. A rational amount of introduction of hydro-removal ash was determined to obtain a mixed binder with a specific surface area established empirically. With this replacement, there is a slight decrease in strength and an increase in water absorption compared to the control ashless sample.
    Keywords: hydro-removal ash, specific surface area of ash, ash-cement binder, cement stone, road construction, ecology
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  • For citation: Yavinskiy A. V., Chulkova I. L. Influence of the Specific Surface Area of Hydro-removal Ash on the Properties of Ash-cement Stone. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2023, no. 2, p. 73-80. (In Russ.). doi: 10.33622/0869-7019.2023.02.73-80


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