Question

6- Compute the aggregate blend specific gravity (G) (0.000) and absorption (A) (0.00) lor following aggregates. (7 points) Aggregate 1: G= 2.720 Aggregate 2: G= 2.560 Aggregate 3: G3= 2.496 Aggregate 4: G4= 2.623 A,= 0.50 A2= 2.10 Az= 2.40 A4=0.70 blend percent= 40% blend percent= 20% blend percent= 25% blend percent= 15%

Answer 1

liven data 6,=2.72 , A,= 0.5 a blend percent= 40% - Wi= 40% le2=2.65, A2=2.1 , W2=20% - lz= 2.496, A3= 2.4 W3=25% 44= 2:623, Ay = 0.7 Ww=15% - Aggregate blend specific gravity, ei: l= wi+W2 + Wz + Wu Wit W2 + y + Wy ५, २, ५, १. 40+20+25+ is - l = Yo +20 + 25 + 15 2.72 2.65 2.496 2.623 & loo = = 2.632 37.988 la 2.632

qa Now Aggregate blend absorption: A= Wit W2 + Wz + wa WI+Wz tWz + We . i ' A ' Āz. Au - A= loo 40 +20 + 25 + 15 0.5 2 .1 2.4 0.7 A= 100 =0.824 121:37 : A = 0.824