Mechanical Properties of Polypropylene-Fiber-Reinforced High-Performance Concrete Based on the Response Surface Method

Table 1

Physical properties and chemical composition of cement and fly ash.

Name	Fineness	Strength activity index (%)	Specific surface area (m^2/kg)	Ignition loss (%)	MgO (%)	SO3 (%)	Cl-(%)	Insolubles (%)	Grinding aid (%)
Cement			362	1.72	0.99	2.56	0.008	0.9	0.03
Fly ash	14.2	74		0.77		0.1