Silicate mineral fibers – stone (Sw) and glass wool (Gw) – are promising resources for cementitious binders. Insights gained from their dissolution kinetics under alkaline conditions can help to control the release of elements, formation of cementitious phases, and understand reactivity of similar type glasses (soda-lime and basalt). Decreasing the liquid-to-solid ratio (L/S) affects the dissolution rate of Sw, whereas the effect was lower for Gw. Residual rate observed for Sw was due to approaching equilibrium between the surface precipitates and solution chemistry. Two types of precipitation products were observed for both fibers at high pH: Mg-Al-Fe LDH and a C-N-(A-)S-H phase with a small concentration of Al. Dissolved Al was observed to incorporate more in LDH at a high L/S, whereas at a low L/S, Al incorporates more into C-N-(A-)S-H gel, altering its morphology. In addition, Ca-Ti-Si-rich globular domes, and Ca-Fe-Ti-rich nano-dome like hydrogarnets on the Sw fiber surfaces were observed.

硅酸盐矿物纤维 - 石头 (Sw) 和玻璃棉 (Gw) - 是用于水泥粘合剂的有前途的资源。从它们在碱性条件下的溶解动力学中获得的见解有助于控制元素的释放、胶凝相的形成，并了解类似类型玻璃（钠钙和玄武岩）的反应性。降低液固比 (L/S) 会影响 Sw 的溶解速率，而 Gw 的影响较低。观察到的 Sw 残留率是由于表面沉淀物和溶液化学之间接近平衡。在高 pH 条件下，两种纤维都观察到两种类型的沉淀产物：Mg-Al-Fe LDH 和具有少量 Al 浓度的 CN-(A-)SH 相。观察到溶解的 Al 在高 L/S 下更多地结合到 LDH 中，而在低 L/S 下，Al 更多地结合到 CN-(A-)SH 凝胶中，改变其形态。此外，在 Sw 纤维表面观察到富含 Ca-Ti-Si 的球状圆顶和富含 Ca-Fe-Ti 的纳米圆顶状水石榴石。