Mechanical Properties and Microscopic Mechanism of Coral Sand-Cement Mortar

Table 1

Chemical composition of cementing materials (wt.%).

Chemical analysis	SiO2	Al2O3	Fe2O3	CaO	MgO	K2O	Na2O	TiO2	SO3	Ignition loss
Cement	21.99	5.92	3.26	58.64	1.98	0.74	0.27	0.4	2.6	3.5
FA	50.93	33.51	3.33	3.69	0.66	1.49	0.5	1.60	0.51	2.3
SG	29.89	16.20	0.41	35.53	10.96	0.36	0.45	1.27	3.32	0.37