Preliminary Constituent Proportioning for Central Plant Hotmix Asphalt Recycling
Publication: Journal of Materials in Civil Engineering
Volume 19, Issue 9
Abstract
Different methods for preliminary constituent proportioning of the recycled mix are proposed in various guidelines/studies for central plant hotmix asphalt recycling. These methods are sequential in nature, and the process requires at least one of the parameters (for example, quantity of reclaimed material or viscosity of virgin asphalt binder) as fixed. An attempt has been made in the present work to develop a generalized formulation for the mix proportioning which does not require any such prefixing; however, the formulation is flexible enough to take care of such a constraint, if imposed. The proposed formulation serves certain overall objectives, like minimization of material cost, maximization of usage of reclaimed material etc., with the help of a linear programming tool. The suggested approach handles the proportioning problem as a whole, and is therefore not dependent on the sequence of mix proportion calculations.
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Acknowledgments
The senior writer wishes to gratefully acknowledge the financial support provided by the All India Council for Technical Education (AICTE), Government of India, under the scheme of “Career Award for Young Teachers (2002–03).”
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 19 • Issue 9 • September 2007
Pages: 740 - 745
Copyright
© 2007 ASCE.
History
Received: Nov 22, 2005
Accepted: Mar 21, 2006
Published online: Sep 1, 2007
Published in print: Sep 2007
Notes
Note. Associate Editor: Mary Stroup-Gardiner
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