57 5 5.1 2 2.1 ( ) ( )
58 5 5.2 1933 (Proctor) (JIS A 1210) ( 2.5 kg 4.5 kg ) (2.5 kg 30 cm 4.5 kg 45 cm) 5.3 5 5.1 ρ d w ρ d max w opt 5.1
5.3 59 5.1 v a = 0 % S r = 100 % 5.3 5.1 5 5.1 5.4 2 2 5.2 3 ( ) 5.1 5.2
60 5 5.2 5.3 5.3 B B-a w 0 w 1 w 0 w 1 S-G S ( ) G ( 1 ) 5.3 1 5 1 50 C
5.5 61 2 3 4 6 8 5 12 5.5 (1) (8) 5.2 5.2 (1) (5) (2) (6) 2 1.3 (3) (7) (4) (8)
62 5 5.6 1 11 5.3 1 m 1 (g) ( + ) = m 1 2 3 ( ) 4 5 6 7 8 m 2 (g) 9 10 1 9 5.3 11 2 10 6 8 m 2
5.6 63
64 5 5.3 5.7 1 ( ) (5.1) ρ t (g/cm 3 ) (5.2) ρ d (g/cm 3 ) 5.4
5.7 65 5.4 ρ t = m 2 m 1 V ρ t ρ d = 1 + w 100 (5.1) (5.2) m 1 ( ) (g) m 2 (g) V (cm 3 ) w (%) 2 5.1 w ρ d 3 2 w opt ρ d max 4 (5.3) 5.2 ρ dsat = ρ w ρ w + w ρ s 100 (5.3) ρ w (g/cm 3 ) ρ s (g/cm 3 ) ρ d w v a ρ d w (5.4) (5.5)
66 5 ρ d = ρ d = ρ w ρ w + w (5.4) ρ s S ( r ρ w 1 v ) a 100 ρ w + w ρ s 100 (5.5) 5.5 1 2 1 45 60 2 S r 85 90 % v a 5 10 % 5.5
5.8 67 5.8 1 5 1 ( )E c (kj/m 3 ) 5.6 (5.6) 5.6 ( ) E c = W R H N B N L V (5.6) W R (kn) H (m) N B 1 N L V (m 3 ) Standard Proctor 5.3 A B
68 5 E c 550 kj/m 3 Modified Proctor 5.3 C D E E c 2500 kj/m 3 E c 550 kj/ m 3 E c 2500 kj/m 3 2 5.7 5.8 1. 2. 3. 5.7
5.8 69 5.8 3 ( ) 5.9 5.10 ( ) ( ) 4 ρ d max ρ df D c
70 5 5.9 5.10 D c (5.7) D c = ρ df ρ d max 100 (5.7) D c A-b ( 5.3 ) ρ d max D c 85 95 % D c 90 95 % (RI) 1 5 1 2
5.8 71 3 4 2 % 10 % 85 % 95 % 15 % 1 6 1 12 2 3 4 5.5 7 5 5.5 9 6
72 5 5.11 5-1
5.8 73 5.12 5-2