Base course aggregate has a target dry density of 119.7 lb/cu ft in place. It will be laid down and compacted in a rectangular street repair area of 2000 ft * 48 ft * 6 in. The aggregate in the stockpile contains 3.1% moisture.If the required compaction is 95% of the target, how many tons of aggregate will be needed?

Base course aggregate has a target dry density of 1917 kg/m3 in place. It will be laid down and compacted in a rectangular street repair area of 600 m X 15 m X 0.15 m. The aggregate in the stockpile contains 3.1% moisture. If the required compaction is 95% of the target, how many tons of aggregate will be needed?

1. From the following trial batch data, determine the material weights for a cubic yard batch. Initial Wt. (lb) 8.20 3.45 32.00 26.40 Cement Water Fine Aggregate (SSD) Coarse Aggregate (SSD) * Left over after the batch has been mixed. Final Wt. (lb)* 0 0 Vol. of container = 0.121 ft.³ Wt. of container = 8.30 lb 9.80 Wt. of container and 4.20 concrete = 25.80 lb

(c) Asphalt concrete mixture of AC 14 will be used to construct the wearing course layer. The coarse aggregate, fine aggregate and filler are used as materials to produce the asphalt concrete mixture. The aggregate gradation will be blended to fulfill the gradation limit according to JKR standard specification as shown in Table Q1(c)(i). Based on this statement, conclude the result of sieve analysis test of blended aggregate as shown in Table Q1(c)(ii). I Table Q1(c)(i): Gradation specification for AC 14 mixture BS Sieve Size (mm) Percentage passing by weight 28.0 20.0 14.0 10.0 5.0 3.35 1.18 0.425 0.150 0.075 100 90-100 76-86 50-62 40-54 18-34 12-24 6-14 4-8 I Act Go to