Testing of Action of Direct Flame on Concrete

Table 1

Properties of dispersed reinforcement used [10, 11].

Type of fibers	Fibrin 615	Fibrin 3/15	CAR25CDM
Material of fiber	Polypropylene	Polypropylene	Steel
Density	910 kg/m^3	910 kg/m^3	7 860 kg/m^3
Length of fiber	6 mm	12 mm	25 mm
Diameter of fiber	5 μm	16 μm	500 μm
Melting point	150–160°C	160°C	1 515°C