Reviewed by Bethan Davies A new study has shown that carbonated boron mud (CBM), an industrial byproduct treated through rapid carbonation, can significantly improve the performance and sustainability of basic magnesium sulfate cement (BMSC) when used as a partial replacement for magnesium oxide (MgO). Study: Performance Optimization and Long-Term Strength of Basic Magnesium Sulfate Cement Prepared with Accelerated Carbonated Boron Mud.