Capillary Water Absorption Characteristics of Recycled Concrete in Freeze-Thaw Environment

Table 5

Times and tolerances for the measurements schedule.

Time	Tolerance
60 s	2 s
5 min	10 s
10 min	2 min
20 min	2 min
30 min	2 min
Every hour, up to 6 h	2 h
Once a day, up to 3 days	2 h
Day 4 to7, 3 measurements 24 h apart	2 h
Day 81 (one) measurement	2 h