Page 59 - Lecture Notes DCC3113

FEEDBACK ON EXERCISE 3

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b. Complete the Marshall form below and determine the optimum bitumen content of the mix design

Stability Flow
Weight (g) Specific Gravity Volume Voids (%) Stiffness
% Bulk (kN) (mm)
Bitumen Refer
Spec. Saturated Volume Bulk Max. Mineral Filled Total Table CORR
3
Sample. No Surface Air Water (cm ) (Density) Theory Bitumen Aggregate Voids Agg. Bitumen Mix CORR MEAS (Stability)
No Dry (%VMA) (%VFB) (%VIM) Factor
F G H I J K L M N O P Q R S
B C D E B X G (100-B)G 100-I- 100- CORR
(C-E) D/F * 100-J 100(I/L) P X O Q/R
SG BIT SG AGG J (100G/H) FACTOR
4.5 1200.8 1195.3 685.9 514.9 2.321 2.490 10.1 83.1 6.8 16.9 60.0 6.8 1.00 1161 1161 3.27 355.0

1196.4 1193.7 685.9 510.5 2.338 2.668 10.2 83.7 6.1 16.3 62.7 12.4 1.00 1100 1100 3.17 347.0
1195.7 1192.7 685.4 510.3 2.337 2.668 10.2 83.7 6.1 16.3 62.5 12.4 1.00 1150 1150 3.26 352.8
AVG 2.3 2.6 10.2 83.5 6.3 16.5 61.7 10.5 1.0 1137.0 3.2 351.6
5.00 1197.9 1194.7 690.7 507.2 2.355 2.471 11.4 83.9 4.7 16.1 70.9 4.7 1.04 1191 1238.64 3.70 334.8

1195.8 1192.7 690.2 505.6 2.359 2.668 11.5 84.0 4.6 16.0 71.6 11.6 1.04 1163 1209.52 3.71 326.0
1200.5 1197.1 692.4 508.1 2.356 2.668 11.4 83.9 4.7 16.1 71.0 11.7 1.04 1151 1197.04 3.83 312.5
AVG 2.4 2.6 11.4 83.9 4.6 16.1 71.2 9.3 1.0 1215.1 3.7 324.4
5.50 1202.8 1199.9 695.2 507.6 2.364 2.453 12.6 83.7 3.6 16.3 77.6 3.6 1.04 1321 1373.84 4.30 319.5

1180.3 1176.4 682.7 497.6 2.364 2.668 12.6 83.7 3.6 16.3 77.6 11.4 1.09 1298 1414.82 4.29 329.8
1178.6 1174.8 681.2 497.4 2.362 2.668 12.6 83.7 3.7 16.3 77.2 11.5 1.09 1239 1350.51 3.93 343.6
AVG 2.4 2.6 12.6 83.7 3.7 16.3 77.5 8.8 1.1 1379.7 4.2 331.0
6.00 1185.0 1182.3 685.8 499.2 2.368 2.436 13.8 83.4 2.8 16.6 83.3 2.8 1.04 1163 1209.52 4.63 261.2

1196.0 1191.5 690.6 505.4 2.358 2.668 13.7 83.1 3.2 16.9 81.1 11.6 1.04 1135 1180.4 4.72 250.1
1188.8 1184.0 685.6 503.2 2.353 2.668 13.7 82.9 3.4 17.1 80.2 11.8 1.04 1111 1155.44 4.69 246.4
AVG 2.4 2.6 13.7 83.1 3.1 16.9 81.5 8.7 1.0 1181.8 4.7 252.6
6.50 1172.7 1168.2 675.9 496.8 2.351 2.418 14.8 82.4 2.8 17.6 84.3 2.8 1.04 870 904.8 5.31 170.4

1185.6 1180.8 685.6 500 2.362 2.668 14.9 82.8 2.3 17.2 86.5 11.5 1.04 870 904.8 5.48 165.1
1178.9 1172.4 679.6 499.3 2.348 2.668 14.8 82.3 2.9 17.7 83.7 12.0 1.04 919 955.76 5.69 168.0
AVG 2.4 2.6 14.9 82.5 2.7 17.5 84.8 8.7 1.0 921.8 5.5 167.8

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