Experimental Investigation of MgAl-NO₂ and MgAl-CO₃ LDHs on Durability of Mortar and Concrete

Table 2

Physical properties of cement.

Density (g/cm^3)	Specific surface area (m^2/kg)	Ignition loss (%)	Set time (min)		Compressive strength (MPa)		Flexural strength (MPa)
			Initial	Final	3d	28 d	3 d	28 d
3.20	373	2.51	81	191	28.5	56.8	6.1	8.8