Mechanical Properties and Hardening Mechanism of Magnesium Ammonium Phosphate Cements Modified by Fly Ash

Table 1

Chemical composition of dead-burnt magnesia oxide and fly ash (wt%).

Raw materials	MgO	SiO2	Al2O3	Fe2O3	CaO	K2O	SO3	TiO2	P2O5
MgO	91.46	2.03	1.02	1.27	1.75	0.04	0.20	0.04	0.13
Fly ash	0.57	34.54	21.18	3.42	3.06	1.53	0.21	0.94	0.18