Strength Properties of Various Types of Fiber-Reinforced Concrete for Production of Driven Piles
Isabai B. Nurzhan S. Yerlan A.
July 2023Multidisciplinary Digital Publishing Institute (MDPI)
Buildings
2023#13Issue 7
This paper presents the results of static and dynamic tests of fiber-reinforced and unreinforced concrete samples under laboratory conditions. Concrete samples reinforced with steel and non steel fibers were tested. The dynamic tests were carried out on the stand by applying falling weight impacts on the concrete samples. The impact testing of samples included two stages of deformation: until the first defects appeared in the samples and until their complete destruction. The impact resistance of the samples was evaluated according to the energy input of the hammer with registration of the type, size and volume of the defects. It was revealed that the type of fibers has a different effect on the static and impact resistance of fiber concrete. Correlational dependencies used for predicting the strength and energy parameters of fiber concrete in their comparative evaluation have been obtained. It has been determined that the static strength and impact resistance of fiber concrete may not be identical, i.e., a high static strength in fiber concrete does not always provide a high impact resistance. The impact resistance of fiber concrete when tested before the first defects appear is always lower than when tested before complete failure.
compressive load , deformation , driven pile , dynamic tests , fiber-reinforced concrete , fiberglass , polystrength pile , reinforcement , static tests , strength
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Geotechnical Testing Laboratory, Dulaty University, 60, Tole bi, Taraz, 080000, Kazakhstan
Department of Construction and Production of Materials, Institute of Water Management and Environmental Engineering, Dulaty University, Campus 6.2, 28, Satpayev, Taraz, 080000, Kazakhstan
Geotechnical Testing Laboratory
Department of Construction and Production of Materials
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