Performance Evaluation of JPCP with Changes of Pavement Mix Design Using Pavement Management Data

Table 1

Mix design changes of expressway concrete pavement in Korea.

Year	Slump (mm)	Air (%)	Water/binder ratio	Unit weight (kg/m^3)					Admixtures
				Water	Binder		Sand	Gravel	AE (%)	WR (%)
					Cement	Fly ash
1986	30–50	3–6	0.45	153–170	356–378	—	595–694	1135–1272	0.03	—
1996	40–60	4–6		151	336	—	678	1162	0.15	—
2002	40–60	4–6		147	326	—	692	1122	0.3	—
2010	40–60	5–7	0.43	150	280	70	630	1150	0.02	0.3