Abstract
The impact of basalt fiber on the mechanical characteristics of concrete at different temperatures is the subject of this experimental study. For comparison, various aspect ratios of basalt fiber (25, 50, 75) and various temperatures (300 °C, 500 °C, 700 °C) is taken. Compressive, Tensile and Flexural strength test is carried out on test specimen at 56 days. Testing specimen (150×150×150 mm cube and 150ø×300 mm cylinder And Flexural Beam 500×100×100 mm) were prepared using high strength concrete with basalt fiber at dosage 0.75% then subjected to elevated temperature at 300°C, 500 °C, 700 °C (± 10 °C). Basalt fiber has superior properties to minimize damage under elevated temperature. According to test results, the inclusion of basalt fiber increases the compressive and tensile strength and also increases the flexural strength of concrete, while decreasing its strength at increased temperatures of 500 °C and 700 °C.
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