Interface Bonding Properties between Nonwater Reaction Polyurethane Polymer Materials and Concrete

Table 4

Saturation conditions.

Number	Density ρ/(g/cm^3)	Soaking time (h)	Temperature (°C)	Ave. moisture content (%)	Bond strength (MPa)	Reduction rate (%)
37–39	0.6	24	0	1.3	0.19	83.0
40–42	0.6	24	5	1.22	0.33	70.5
43–45	0.6	24	10	1.03	0.33	70.5
46–48	0.6	24	15	0.76	0.39	65.2