Optimization of microstructure of basalt-based fibers intended for improved thermal and acoustic insulations

Batch compositions of basalt and dolomite were optimized to produce high-quality fibers and wool boards applying Cupola technology. The raw batches, cinders, single fibers and fabricated wool boards have been characterized using XRD, XRF, SEM-EDAX, μ-X-ray CT, Lambda meter, mechanical and acoustic testing procedures according to ASTM and EN standards.