Carbonation Depth Model and Prediction of Hybrid Fiber Fly Ash Concrete

Table 1

Physical and mechanical properties.

Fiber species	Density (g·cm^−3)	Elongation to fracture (%)	Tensile strength (MPa)	Elastic modulus (GPa)
Basalt fiber	2.65	3.2	3000∼3300	90∼110
Polypropylene fiber	0.91	30∼50	365∼600	2.4∼3.2