Surface TreatmentBituminous materials and aggregate are combinedin various proportions to obtain the most satisfactorysurface for a given situation. Accurate estimates arerequired to avoid production delays because ofinadequate supplies. You also want to avoid oversupplyand waste of materials.The formulas for estimating supplies for a single-surface treatment are as follows:For computing pounds:For computing tons:determined by the same method as above except theThe materials for a multiple-surface treatment areapplication rate of the binder and the aggregate, and thesize of the aggregate for the second lift is one half of thatof the first lift.Example: A test strip with an area of 100 squareyards was used to determine the quantities for asingle-surface treatment. Careful control was made ofmaterials. A check of materials consumed showed that1.50 tons of aggregate was used. Based on previousexperience, an aggregate loss of 10 percent (0. 10) and abitumen loss of 5 percent (0.05) are expected. Find thetons of aggregate and gallons of bitumen necessary tomake a double-surface treatment on a road 24 feet wideand 10 miles long.8-30
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business