/ / 1 CA450B 23
SCC 56 76 84 N/mm 2 84 N/mm 2 84 N/mm 2 56 243 90 84 N/mm 2 12,000 psi A. CNS 61 R2001 IV 20% 10% 12.5 mm FM = 2.7±0.2 B. 250 mm = 700±50 mm CNS 14840 U R2 CNS 14841 R1 50 cm 5 ~ 20 < 3% ASTM C341 300 µm/m Fumihiko Maki Concrete Filled in Tube, CFT 76 322 85 24
42 N/mm 2 6,000 psi 101 10,000 psi > 6,000 psi 12,000 psi A. IV IV IV 3,000 T 101 IV IV IV CNS 61 IV 7 250 kj/kg(60 cal/g)28 290 kj/kg (70 cal/g) 1 2 II 57% ~ 65% IV 1 I IA II IIA III IIIA IV V False Set % 7 kj/kg(cal/g) 28 kj/kg(cal/g) 14 % 50 50 50 50 50 50 50 50 290 {70} 330 {80} 290 {70} 330 {80} 250 {60} 290 {70} 0.040 2 7 cal/g 28 cal/g 1 I 80 91 2 I +25% 79 90 3 I +45% 61 86 4 I +65% 53 66 5 II 77 88 6 II +25% 67 80 7 II +45% 64 79 8 II +65% 55 65 9 II +80% 44 50 B. < 6,000 psi 12,000 psi 25
3 4 3 4 2 3 Gabbro> Quartsite> Basalt> Limestone> Sandstone CNS 1240 12.5 mm F.M. = 2.7±0.2 12,000 2 26
3 (1) (2) (3) (4) SCC (5) CSH 5 30% 4 5 D. Dehydration Shrink 5 C. 50 nm 0.30 6,000 cm 2 /g 15,000 cm 2 /g 120 4 [1] 27
5 [2] 0.32 agecarbonation Shrinkage Conversion Shrinkage W/C > 0.42 50 ~ 100 μm/m W/C < 0.42 508 101 90 300 μm/m 101 300 μm/m 101 10,000 psi 90 172 μm/m 6 7 12,000 psi 6 28
7 V75 90 25 sec 90 300*10 6 m/m 90 84N/mm 2 II 0.25 ~ 0.28 3.8 kgf/ cm 2 [1] 2007 C1/D1 36 117~1302 [2] Kilic, C.D., Atus, A. Teymen, O. Karahan, F. Ozacn, C. Bilim, M. Ozdemir, The influence of aggregate type on the strength concrete, Cement and Concrete Research, pp. 290296, 2008. 29