A concrete mix has a ratio os 1:2:4 by mass. The properties of the materials to be used are tabulated below. MATERIALS SPECIFIC GRAVITY CEMENT 3.33 SAND 2.65 GRAVEL 2.67 Cement weighs 40 kg per bag. Use 24 liters of water per bag of cement.

Calculate the absolute volume of fine aggregate in 2-CY of TDOT Class D concrete if fine aggregate weight SSD is 8470-lbs in 7-CY of TDOT Class D concrete and fine aggregate Ss = 2.607 (answer to three places right of the decimal point and provide proper units)

CONCRETE TECHNOLOGY// THEORY PART.

One cubic yard of fresh concrete mix includes 1900 lbs coarse and 1150 lbs fine aggregates. Water-cement ratio (W/C) for the mix is 0.5. Given information: Concrete weight = 150 pcf Weight of standard cement bags 94 lbs Water weight = 8.34 pounds per gallon Approximately how many bags of Portland cement should be added to each cubic yard of this mix? 4 bags 5 bags 6 bags 7 bags