Compressive Test Characteristics and Constitutive Relationship of Wet Polypropylene Macrofiber-Reinforced Shotcrete

Table 1

Mix proportions of shotcrete (mass ratio).

Material	Cement	Sand	Stone	S1	S2	Fiber
Dry shotcrete	1	2	2	0.035
Wet shotcrete	1	2	1.75		0.06
Wet PP shotcrete	1	2	1.75		0.06	1
Remark S1: powdered aluminate accelerator; S2: alkali-free liquid accelerator; water-reducing admixture 0.8% (cement weight)