Polyvinyl Alcohol Fiber Length Optimization for High Ductility Cementitious Composites with Different Compressive Strength Grades

Table 1

Chemical composition of cement and fly ash (mass fraction%).

Binding material	CaO	SiO2	Al2O3	Fe2O3	MgO	SO3	K2O	Na2O	Loss
P·II 42.5 R cement	60.60	21.84	6.49	3.70	1.77	2.24	0.32	0.51	2.53
P·II 52.5 cement	63.05	20.58	5.16	3.39	1.57	2.57	0.27	0.31	3.10
Fly ash	6.06	49.96	33.02	4.52	1.17	0.62	0.98	0.66	3.01