Differential scanning calorimetry, thermogravimetry and gas analysis were used to study the impact of high-energy mechanical milling (HEMM) on the rejuvenation of a granulated blast furnace slag (GBS). It is found that milled GBS – ground granulated blast furnace slag (GGBS) in practice – shows an enormous release of exothermic heat in the sub-T_g range upon heating at 10 K min⁻¹, which increases with milling time and exceeds more than three times that of the unmilled GBS. Heating of GGBS revealed that the energy release of HEMM-activated glasses occurs at considerably lower temperatures than observed for thermally excited glasses (hyperquenched fibers). The difference in the characteristic release temperatures is assigned to two different relaxation mechanisms. The former (HEMM), is due to relaxation of structural defects on the surface of the powder particles, whereas the latter (hyperquenched glass), comprises relaxation of the entire glass structure throughout the volume.

差示扫描量热法，热重分析法和气体分析法用于研究高能机械研磨（HEMM）对高炉矿渣（GBS）再生的影响。据发现，研磨GBS -磨碎的粒状高炉矿渣（矿粉）在实践-显示在子放热的巨大释放Ť_克范围在以10K min的加热^-1，它随铣削时间增加而超过未铣削GBS的三倍以上。GGBS的加热表明，与热激发玻璃（超淬火纤维）相比，HEMM活化玻璃的能量释放发生的温度低得多。特征释放温度的差异被分配给两种不同的松弛机制。前者（HEMM）是由于粉末颗粒表面结构缺陷的弛豫所致，而后者（超淬火玻璃）则包括整个体积中整个玻璃结构的弛豫。