Basalt Chopped Fiber-6mm

Catalog	ACMA00030718
Density	2.63g/cm³
Application	for reinforcement of thermoplastic and thermoset polymers, and concrete applications.
Cut Length	6mm
Fiber Diameter	9 to 19µm
Material	Silane
Moisture Content	< 0.1% (Dry fiber), 5-12% (Wet fiber)
Ignition Residue	Values are sizing dependant.
Type	Chopped Basalt Filaments

Case Study

Chopped Basalt Fiber for Concrete Reinforcement

Tahwia A M, et al. Journal of Composites Science, 2023, 7(6), 250.

As an environmentally friendly fiber, basalt fiber (BF) exhibits excellent performance in concrete structures. This work investigates the effect of chopped basalt fiber on the processability, compressive strength, and impact resistance of high performance concrete (HPC). The results show that the addition of BF can improve the compressive strength and impact resistance.
Sample preparation and experimental results
· Sixteen mixes of high-performance concrete were produced using chopped basalt fibers with three different lengths (3, 12, and 18 mm) and six various volume fractions (ranging from 0% to 0.6% by concrete volume).
· It was found that the compressive strength of the concrete was enhanced by the addition of basalt fibers, with the optimal strength achieved at a content of 8 kg/m3. At ages 2, 28, and 56 days, the compressive strength increased by 16.00%, 17.50%, and 14.45%, respectively, compared to the high-performance concrete without fibers.
· The experimental results also showed that the addition of basalt fibers increased the number of blows the concrete could withstand before failure. Additionally, the impact toughness of the concrete was significantly improved with the inclusion of basalt fibers, especially at a dosage of 8 kg/m3. This led to a decrease in brittleness and a change in the failure pattern from diagonal to radial when subjected to impact loading.

Applications of Chopped Basalt Fiber in Reinforced Mortar

Ralegaonkar R, et al. Construction and Building Materials, 2018, 164, 589-602.

Chopped Basalt Fiber (CBF) is considered as a better reinforcement material for cementitious matrix, such as better modulus, high strength, higher failure strain, better stability, reduced drying shrinkage, improved toughness, ability to resist repeated impacts, thermochemical resistance.
Examples of chopped basalt fiber reinforced mortar
· In the study by J. Ma et al., the performance of basalt fiber reinforced cementitious composites was examined using a matrix ratio of cement to sand of 1:3, with a 0.5 water/cement ratio. Basalt fibers (diameter - 18 μm, length - 15 mm, density - 2650 kg/m3) were added to the mix in varying proportions, along with different super-plasticizer content. It was found that as the fiber content increased, the fluidity of the reinforced mortar decreased by 18%.
· Choi and Lee investigated reinforced mortar for structural properties, focusing on bonding and tensile strength. The mortar matrix was made using alkali-activated slag as a binder, fine silica sand as an aggregate, and other additives in specific proportions. Three types of fibers, including basalt, polyvinyl alcohol (PVA), and polyethylene fibers (Ø - 12 μm, 40 μm, 12 μm, respectively; L - 12 mm each) were used in the experiment. A test was conducted to assess the interface properties, showing good chemical bonding between the basalt fiber and mortar matrix. Additionally, the basalt fiber exhibited higher frictional bond and sliphardening coefficient compared to PVA fiber. It was also noted that the tensile strength of basalt fiber decreased with an increase in fiber inclination angle, with strength reduction coefficients significantly higher than those of PE and PVA fibers.