Uryu Ishida released the power of his gloves, named Sanrei Teto, and enslaved the substances composed of Reishi around him to defeat Mayuri. At that time, when the air around him and the stone walls began to collapse...it was almost the same pain that he felt when Azashiro was fused with that area. If there is a difference, it would be the nature of it. If the power of the Quincies was the dismantling of reishi due to the forced control, then that current pain, was the sensation of it's reishi bonds being forcibly burned and severed due to the overwhelming heat Zaraki's reishi were emitting. Probably, Zaraki himself had no intention of doing such at all. However, the Reishi around him were unable to withstand his own excessive Reiatsu.