Influence of fly-ash filler and moisture content on vibrational and acoustic properties of basalt fibre reinforced composites

Figures & data

Figure 1. Schematic representation of preparation of basalt/fly-ash reinforced epoxy composite.

Table 1. Specifications of cured composite laminates.

Specimen	% Fly-Ash	Mass of Cured Composite (gms)	Avg. Thickness (mm)	Density (g/cc)
BF0FA	0	106	1.18	1.44
BF10FA	10	115	1.26	1.46
BF15FA	15	121	1.29	1.51
BF20FA	20	126	1.31	1.55

Figure 2. Free-vibration test set up and basalt/fly ash-epoxy specimens.

Figure 3. Impedance tube setup and basalt/fly ash-epoxy specimens.

Figure 4. Moisture absorption behaviour of basalt/fly ash reinforced epoxy composites.

Table 2. Percentage weight change and diffusion coefficient of aged specimen.

Fly ash content (%)	Moisture gain at equilibrium (%)	Diffusion Coefficient (m^2/s)
0	7.02	2.04 × 10^−4
10	10.61	9.48 × 10^−4
15	14.91	3.55 × 10^−3
20	17.76	6.29 × 10^−3

Figure 5. Effect of fly ash content and moisture on (a) Natural frequency, (b) Stiffness.

Figure 6. Effect fly ash content and moisture on damping factor of basalt/epoxy composites.

Figure 7. Effect of fly ash content and moisture on transmission loss of basalt/epoxy composites a) BF0FA, b) BF10FA, c) BF15FA, d) BF20FA.

Data availability statement

The data will be made available on request.