Relevance. Ductility of basalt fiber reinforced concrete is an interesting property of basalt fiber reinforced concrete. However, very few experiments on this property is documented. The aim of the work. This paper provides a summarized analysis and review of existing publications on the ductility of lightweight basalt fiber reinforced concrete. Methods. This paper provides a comprehensive study on ductility of basalt reinforced concrete and lays the framework for proper laboratory experiment on the ductility of basalt fiber reinforced concrete. Results. From the findings of this review paper, ductility of dispersed basalt fiber reinforced concrete depends not only in the percentage of basalt fiber in the concrete but in the length and diameter of the basalt fiber. Increase in the percentage of basalt fiber in the concrete yielded an increase in the concrete ductility.

Relevance. The load on a reinforced concrete slab with high strength lightweight aggregate concrete leads to increased brittleness and contributes to large deflection or flexure of slabs. The addition of fibers to the concrete mix can improve its mechanical properties including flexure, deformation, toughness, ductility, and cracks. The aims of this work are to investigate the flexure and ductility of lightweight expanded clay concrete slabs reinforced with basalt fiber polymers, and to check the effects of basalt fiber mesh on the ductility and flexure. Methods. The ductility and flexural/deflection tests were done on nine engineered cementitious composite (expanded clay concrete) slabs with dimensions length 1500 mm, width 500 mm, thickness 65 mm. These nine slabs are divided in three reinforcement methods types: three lightweight expanded clay concrete slab reinforced with basalt rebars 10 mm (first slab type); three lightweight expanded clay concrete slab reinforced with basalt rebars 10 mm plus dispersed chopped basalt fiber plus basalt fiber polymer (mesh) of cells 2525 mm (second slab type); three lightweight expanded clay concrete slab reinforced with basalt rebars 10 mm plus dispersed basalt fiber of length 20 mm, diameter 15 m (third slab type). The results obtained showed physical deflection of the three types of slab with cracks. The maximum flexural load for first slab type is 16.2 KN with 8,075 mm deflection, second slab type is 24.7 KN with 17,26 mm deflection and third slab type 3 is 32 KN with 15,29 mm deflection. The ductility of the concrete slab improved with the addition of dispersed chopped basalt fiber and basalt mesh.

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Concrete exposure to high temperature is a threat to the concrete which leads to loss of strength and degradation of the concrete. Based on this, it was necessary that the behavior on compression of lightweight expanded clay basalt fiber reinforced concrete (BFRC) be investigated when exposed to high temperature. The parameters and dosages of basalt fiber in lightweight expanded clay concrete have effects on the strength of the concrete. The sustainability of a structure in any environment is of high importance therefore, the types of material used as an aggregate and reinforcement must be durable, trustworthy and with the necessary properties suitable for the structure. The main aim of this paper is focused on the ability of lightweight expanded clay basalt fiber reinforced concrete when exposed to high temperature and tested for compressive strength, not to lose its total strength whereby, creating opportunity for the reuse of the concrete. The method of this research is based on laboratory test and practical review analysis. From the compressive strength, a view on the sustainability of this type of concrete is discussed. In this paper, the two sets of specimens were placed on three temperature ranges in a specific time interval. After, they were tested for compression. From the result, it was seen that expanded clay lightweight basalt fiber reinforced concrete didn’t lose much strength under compressive test after it was exposed to high temperature thereby making the concrete sustainable to high temperature.