id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
alkej-532	Hasan Al-Jumaily, Mohammed Abbas	تقييم الجير المطفأ كمادة مالئة في الخلطات الاسفلتية	2008	12	.pdf	application/pdf	10762	371	49	Crushed pieces (One face) 96 ---------- SCRB At least 90% by weight of material Soundness, total weight loss percent 3 ASTM C88 SCRB Not more than 12 % Fine aggregate Sieve size (mm) 2.36 to 0.075 SCRB --------- Bulk specific gravity 2.676 ASTM C128 ------- -------- Soundness , total weight loss percent 4.6 ASTM C88 SCRB Not more than 12 % Table 4: Physical properties of mineral filler types Property Test method Result Hydrated lime Passing sieve No. 200, % --------------- 100 Specific gravity ASTM C128 2.785 Plasticity index AASHTO T90 1.5 Portland cement Passing sieve No. 200, % --------------- 96 Specific gravity ASTM C128 3.15 Surface area (m2/Kg) 357.82 Soft sandstone Specific gravity ASTM C128 2.653 Plasticity index AASHTO T90 3.2 Table 5: Selected gradation of aggregate Sieve size (mm) 19 12.5 9.5 4.75 2.36 0.30 0.075 % Passing 100 95 83 59 43 13 7 Table 6: The code for the six asphalt mixture types Asphalt mixture code Description D47HL Daurah 47 pen.asphalt with hydrated lime filler D47PC Daurah 47 pen.asphalt with Portland cement filler D47SS Daurah 47 pen.asphalt with soft sandstone filler D66HL Daurah 66 pen.asphalt with hydrated lime filler D66PC Daurah 66 pen.asphalt with Portland cement filler D66SS Daurah 66 pen.asphalt with soft sandstone filler Table 7 : Marshall properties of different asphalt mixture types at optimum asphalt content SCRB specifications Asphalt mixture type Property D66SS D66PC D66HL D47SS D47PC D47HL Min. 8 KN 9.5 8.6 10.7 12.9 11.3 14.4 Marshall stability (KN) 2-4 mm 3.4 3.7 3.1 3.2 3.6 2.8 Marshall flow(mm) 3-5 % 4.2 4.0 3.5 4.6 4.3 3.8 Voids in total mix (%) Min. 14 15.9 15.1 14.8 16.9 16.6 15.7 Voids in mineral aggregate (%) 65-85 % 73.6 73.5 76.4 72.8 74.1 75.8 Voids filled with asphalt (%) 4-6 % 5.48 4.7 5.20 5.03 4.9 5.36 Optimum asphalt content (%) Table 8: Chemical fractions and Gaestel index values of original and recovered asphalt cement types Asphalt cement Original D47 Original D66 Recovered asphalt cement types D47HL D47PC D47SS D66HL D66PC D66SS % A 20.03 18.31 26.29 23.77 22.61 23.24 21.48 20.07 % P.A. 35.42 37.08 22.45 33.65 22.92 20.19 38.56 36.41 % N.A. 24.20 25.37 31.80 22.61 34.44 38.35 21.59 24.83 % S 20.35 19.24 19.46 19.97 20.03 18.22 18.37 18.69 IG 0.68 0.60 0.84 0.78 0.74 0.71 0.66 0.63 Table 9: Material properties of pavement structure courses Material properties Surface Binder Base Subbase Subgrade Resilient modulus (psi) Variable 143000 66000 10000 5000 Poisson’s ratio 0.35 0.35 0.35 0.40 0.45 Thickness (cm) 5 8 15 25 infinity Permanent deformation properties Alpha (α) Variable 0.66 0.65 0.88 0.77 Gnu (µ) Variable 0.12 0.15 0.03 0.04 References 1. Recovered asphalt cement type Hydrated lime filler Portland cement filler Soft sandstone filler o C 60 70 80 90 100 D47 D66 Recovered asphalt cement type D uc ti li ty (c m )	cache/alkej-532.pdf	txt/alkej-532.txt