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Author Deacon, John A. ♦ Monismith, Carl L. ♦ Harvey, John T. ♦ Popescu, Lorina
Source CiteSeerX
Content type Text
File Format PDF
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Agency Cost ♦ Construction Quality ♦ Pay Factor ♦ Performance Model ♦ Asphalt-concrete Construction ♦ Cal Apt Program ♦ Future Rehabilitation Cost ♦ Asphalt Content ♦ Dry Mix ♦ Traffic Loading ♦ Exogenous Estimate ♦ Pavement Life ♦ Pavement Test Program ♦ Aggregate Gradation ♦ Time Value ♦ Asphalt-concrete Thickness ♦ Discount Rate ♦ Rut Resistant ♦ Asphalt Concrete ♦ First Cycle ♦ Superior Work ♦ New Asphalt Concrete Pavement Construction ♦ Cost Model ♦ Larger-than-target Asphalt Content ♦ Monte Carlo Simulation Technique ♦ Penalty Bonus ♦ Air-void Content ♦ Next Rehabilitation Activity ♦ Traffic Growth ♦ Early Fatigue Distress ♦ Initial Emphasis ♦ New-pavement Life ♦ Asphalt Concrete Construction ♦ Recommended Bonus ♦ Possible Effect ♦ Single Set ♦ Feasible Method ♦ Future Rehabilitation Activity ♦ Elastic System
Abstract this report to demonstrate a rational and feasible method for quantitatively establishing penalties/bonuses for asphalt concrete construction with the initial emphasis placed on new asphalt concrete pavement construction. The approach makes use of performance models for asphalt concrete used to interpret the results of the CAL/APT program (1) and WesTrack (2). The performance model for fatigue resulted from the CAL/APT program while the one for rutting came from the WesTrack accelerated pavement test program. For both modes of distress the system considers the means and variances of asphalt content, air-void content, asphalt-concrete thickness, and aggregate gradation. In estimating damage under traffic loading, the pavement is treated as a multilayer, elastic system. The performance models compute the distribution of pavement life, expressed as ESALs, using Monte Carlo simulation techniques. Costs are established using a cost model which considers only the time to the next rehabilitation activity. It understates agency costs by ignoring possible effects of construction quality on future rehabilitation costs: it ignores future rehabilitation activity beyond the first cycle. It requires an exogenous estimate of future rehabilitation costs, traffic growth, expected years of new-pavement life, and a discount rate representing the time value of money. The development of single sets of pay factors including both fatigue and rutting reflects the following. The recommended bonus for superior work is the smaller of that for either fatigue or rutting. For asphalt content, there are no bonuses for "dry" mixes. While such mixes may be rut resistant, they may lead to early fatigue distress. The penalty for larger-than-target asphalt content is determined by reduction in rutting res...
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Publisher Date 2001-01-01