Performance Evaluation of High Strength Basalt Fibre Reinforced Concrete

Dalavi Ashutosh Vijay, Dr. Chetan S. Patil

Abstract: The use of discontinuous fibres that are spaced in an ad hoc manner helps to reduce the width of fractures and inhibit the propagation of micro and macro cracks. As a result, the permeability of the concrete will decrease. It has been demonstrated that the addition of fibres to concrete improves its mechanical properties, including its resistance to fracture, impact, and dynamic load. In recent years, the use of composite materials, especially fiber-reinforced plastics, has experienced tremendous increase (FRP). As a direct result of the spread of FRP technology, the creation of new types of fibres, such as basalt fibre, has become increasingly important. The ease with which basalt fibre may be manufactured, as well as its resistance to severe temperatures and capacity to endure the effects of freezing and thawing, have led to its increasing popularity. This field of investigation focuses on the mechanical and elastic properties of concrete coupled with chopped basalt fibre. To cast basalt fibre examples, chopped basalt fibres of different lengths (12 mm, 18 mm, and 24 mm) and dosages (4 kg/m3, 8 kg/m3, and 12 kg/m3 of concrete volume) were utilised. The results indicated that basalt fibre with a length of 18 mm and a dose of 8 kg per cubic metre offered the highest compressive strength in compared to ordinary concrete. The ideal flexural and split tensile strengths were provided by basalt fibres with a length of 24 mm and a dosage of 12 kg per cubic metre. In terms of elastic properties, basalt fibre with a length of 24 mm has showed superior performance than basalt fibre with a length of 12 mm, basalt fibre with a length of 18 mm, and plain concrete.

Keywords: basalt, fibre, reinforced concrete