Does the bond strength of mortar change greatly from 3 days to 14 days?

Compared with 14 days, the bond strength of mortar changes greatly within 3 days. The bond strength of mortar starts from initial setting. The intensity is faster in the first seven days. Generally speaking, the mortar strength is 30% of the design strength in 3 days, 50% in 7 days, 75% in 14 days and 100% in 28 days. Among them, the 7-day strength must reach more than 50% of the design strength to be qualified, but the 28-day strength must also reach 100% of the design strength, and it will be considered unqualified if it is not reached. So it has changed a lot.