Characterization data for magnesium oxychloride cement

Traditional MOC production relies on reactive magnesium oxide (MgO) derived from the calcination of magnesite, which presents issues such as high resource consumption, significant carbon emissions, and relatively high costs. This study developed an environmentally friendly MOC material, referred to as H-MOC, through a short-flow process.

The synthesis involved the preparation of magnesium hydroxide (Mg(OH)2) from carbide slag (CS) and bischofite, followed by the reaction of the obtained Mg(OH)2 with a magnesium chloride (MgCl2) solution to form H-MOC. Additionally, fly ash (FA) was incorporated to tailor the material properties. The research indicates that at ambient temperature, Mg(OH)2 can directly replace MgO in the preparation of H-MOC.