Effect of Straw Fiber Modification Methods on Compatibility between Straw Fibers and Cement-Based Materials

Table 1

Chemical composition of cement and mineral admixtures (mass fraction, %).

Type of materials	CaO	SiO2	Al2O3	Fe2O3	TiO2	MgO	SO3	Na2O	Ignition loss
Cement	62.38	25.52	6.15	3.27	0.57	1.54	1.65	0.21	2.87
Fly ash	1.93	54.88	32.12	4.28	—	1.45	1.46	—	3.82