Fig. 10

Composition of aggregates produced in EXP1–2. Mass composition, \(m_i\), and mass fraction of tephra, \(w_{\text{t}}\), in aggregates: a effect of rotation time, t (EXP1: \(d_{\text{t}} = 32\)–\(63\,\upmu \text {m}\), \(C_{\text{t}} = {33\%}\), and \(C_{\text{s}} = {9\%}\)) and b effect of snow concentration, \(C_{\text{s}}\) (EXP2: \(d_{\text{t}} = 32\)–\(63\,\upmu \text {m}\), \(C_{\text{t}} = {33\%}\), and \(t = 20\,\text {min}\)). Yellow and aqua bars denote the mass of tephra and water plus snow, \(m_{\text{t}}\) and \(m_{\text{w+s}}\), respectively