A combination of DOE - multi-criteria decision making analysis applied to additive assessment in porous asphalt mixture

Porous asphalt (PA) mixture is setting off an attractive alternative to be used as surface layer in pavements due to the many profits this mixture provides in terms of noise, safety and environmental aspects. Nonetheless, its use is quite limited due to its low durability in comparison to dense grad...

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Bibliographic Details
Published in:The international journal of pavement engineering 2022-07, Vol.23 (8), p.2489-2502
Main Authors: Slebi-Acevedo, Carlos J., Castro-Fresno, Daniel, Pascual-Muñoz, Pablo, Lastra-González, Pedro
Format: Article
Language:English
Subjects:
Additives
Asphalt
Asphalt mixes
Decision analysis
Decision making
Design of experiments
DOE
fibres
hydrated lime
MCDM
Multiple criterion
Optimization
PA mixture
polymer modified bitumen
Statistical analysis
Surface layers
Taguchi methods
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Summary:Porous asphalt (PA) mixture is setting off an attractive alternative to be used as surface layer in pavements due to the many profits this mixture provides in terms of noise, safety and environmental aspects. Nonetheless, its use is quite limited due to its low durability in comparison to dense graded asphalt mixtures, reason for which the incorporation of different additives is recommended. In this study, the impact of different types of binders and additives in porous asphalt mixtures are experimentally assessed. A total of 54 experimental designs were defined through the Taguchi design of experiments method. Total air voids, interconnected air voids, particle loss in dry and wet conditions and binder drain down were the responses obtained from the experimental tests. Since more than one response was obtained, three Multi-Criteria Decision-Making (MCDM) methods were performed to turn the multiple response optimisation problem into single-objective optimisation problem. Based on the experimental results and statistical analysis, polymer modified binders improve the ravelling resistance without affecting the functional performance of the mixture and without presenting the risk of binder drain down.
ISSN:1029-8436
1477-268X
DOI:10.1080/10298436.2020.1859508