High-Performance Grouting Mortar Based on Mineral Admixtures

Table 1

Chemical composition of materials (wt%).

Materials	SO3	CaO	MgO	SiO2	Al2O3	Fe2O3	Na2O + K2O	Loss on ignition
Cement	2.91	63.41	1.67	21.19	5.46	2.33	2.50	1.51
Gypsum	50.43	37.45	3.71	2.13	0.53	0.15	0.24	5.01
Bauxite	1.95	28.31	0.48	5.76	46.96	2.20	1.00	11.10
Alunite	20.54	0.33	0.07	25.82	19.45	4.57	4.67	23.02