Self-healing performance of cement mortar mixed with pulverized clinker and inorganic admixture

This study evaluated the mechanical properties and self-healing performance of cement mortar containing pulverized clinker, calcium sulfoaluminate (CSA), Na 2 SO 4 . Mechanical were investigated by measuring compressive strength, sealing efficiency a hydrostatic permeability test nitrogen gas diffusion test. Moreover, healing products adhering to cracks visually observed with an optical microscope scanning electron (SEM). As result, incorporating clinker mineral admixtures increased 3- 28-day strength approximately 20%. There was difference in depending on evaluation method. The underestimated due characteristics according type medium passing through crack. Nevertheless, when inorganic additive mixed mortar, CaCO 3 precipitated as product within 0.3 mm improved performance.