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Title: The Reinforced Spun Concrete Poles under Physical Salt Attack and Temperature: A Case Study of the Effectiveness of Chemical Admixtures
Authors: Kliukas, Romualdas
Jaras, Arūnas
Lukoševičienė, Ona
Keywords: spun concrete
aggressive environment
physical salt attack (PSA)
chemical admixtures
durability
mechanical properties
cyclic wetting and drying (CWD)
Issue Date: 2020
Publisher: MDPI
Citation: Kliukas, R.; Jaras, A.; Lukoševičienė, O. The Reinforced Spun Concrete Poles under Physical Salt Attack and Temperature: A Case Study of the Effectiveness of Chemical Admixtures. Materials 2020, 13, 5111.
Series/Report no.: 13;22
Abstract: The present paper focused on the investigation of the effectiveness of using various chemical admixtures and their effect on the strength and deformability of the reinforced spun concrete members—the supporting poles of the overhead power transmission lines—under the unfavorable long-term combined action of the aggressive salt-saturated groundwater and the temperature changes. According to the long-term experimental program, 96 prismatic spun concrete specimens were subjected to multi-cycle (25-50-75 cycles) processing under the combined aggressive environmental conditions. It has been found that chemical admixtures which decrease the initial water-cement ratio produce a considerable positive effect on the mechanical properties of spun concrete used in hot and arid climates and exposed to physical salt attack (PSA). Superplasticizers decrease the initial water-cement ratio the most, and, due to a unique concrete compaction method used, they produce the most homogeneous and dense concrete structure. They can be recommended as most effective in increasing the durability of spun concrete used under the above-mentioned aggressive environmental conditions.
Description: Kliukas, R.; Jaras, A.; Lukoševičienė, O. The Reinforced Spun Concrete Poles under Physical Salt Attack and Temperature: A Case Study of the Effectiveness of Chemical Admixtures. Materials 2020, 13, 5111.
URI: http://dspace.vgtu.lt/handle/1/4159
ISSN: 1996-1944
Appears in Collections:Moksliniai straipsniai / Research articles

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