Mechanical property and water stability of the novel CSA-MKPC blended system

The mechanical property and water stability of the novel CSA-MKPC blended system were investigated. This system was made up of MKPC and 20, 30 and 40 wt.% CSA, cured in five schedules, including 25 °C-95% HR, 25 °C-50% HR, 10 °C-95% HR, 10 °C-50% HR, and −5 °C. The mechanisms were analyzed by porosity distribution, XRD and SEM-EDS. The results indicated that the novel CSA-MKPC blended system had better mechanical property and water stability than MKPC, and possessed advantageous temperature suitability. The presence of CSA not only enhanced the compact of the matrix by filling effect, but also generated amorphous materials to coat on the K-struvite surface. These effects were more obvious after immersing in water.